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			3f2f10c9c2
		
	
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| 63b0d09e35 | 
							
								
								
									
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							| @ -0,0 +1,586 @@ | |||||||
|  | // Package demo ... | ||||||
|  | // | ||||||
|  | // Description : demo ... | ||||||
|  | // | ||||||
|  | // Author : go_developer@163.com<白茶清欢> | ||||||
|  | // | ||||||
|  | // Date : 2021-12-02 12:43 下午 | ||||||
|  | package demo | ||||||
|  |  | ||||||
|  | import ( | ||||||
|  | 	"errors" | ||||||
|  | 	"reflect" | ||||||
|  | 	"sync" | ||||||
|  | 	"sync/atomic" | ||||||
|  | 	"time" | ||||||
|  | ) | ||||||
|  |  | ||||||
|  | // Copyright 2014 The Go Authors. All rights reserved. | ||||||
|  | // Use of this source code is governed by a BSD-style | ||||||
|  | // license that can be found in the LICENSE file. | ||||||
|  |  | ||||||
|  | // Package context defines the Context type, which carries deadlines, | ||||||
|  | // cancellation signals, and other request-scoped values across API boundaries | ||||||
|  | // and between processes. | ||||||
|  | // | ||||||
|  | // Incoming requests to a server should create a Context, and outgoing | ||||||
|  | // calls to servers should accept a Context. The chain of function | ||||||
|  | // calls between them must propagate the Context, optionally replacing | ||||||
|  | // it with a derived Context created using WithCancel, WithDeadline, | ||||||
|  | // WithTimeout, or WithValue. When a Context is canceled, all | ||||||
|  | // Contexts derived from it are also canceled. | ||||||
|  | // | ||||||
|  | // The WithCancel, WithDeadline, and WithTimeout functions take a | ||||||
|  | // Context (the parent) and return a derived Context (the child) and a | ||||||
|  | // CancelFunc. Calling the CancelFunc cancels the child and its | ||||||
|  | // children, removes the parent's reference to the child, and stops | ||||||
|  | // any associated timers. Failing to call the CancelFunc leaks the | ||||||
|  | // child and its children until the parent is canceled or the timer | ||||||
|  | // fires. The go vet tool checks that CancelFuncs are used on all | ||||||
|  | // control-flow paths. | ||||||
|  | // | ||||||
|  | // Programs that use Contexts should follow these rules to keep interfaces | ||||||
|  | // consistent across packages and enable static analysis tools to check context | ||||||
|  | // propagation: | ||||||
|  | // | ||||||
|  | // Do not store Contexts inside a struct type; instead, pass a Context | ||||||
|  | // explicitly to each function that needs it. The Context should be the first | ||||||
|  | // parameter, typically named ctx: | ||||||
|  | // | ||||||
|  | // 	func DoSomething(ctx context.Context, arg Arg) error { | ||||||
|  | // 		// ... use ctx ... | ||||||
|  | // 	} | ||||||
|  | // | ||||||
|  | // Do not pass a nil Context, even if a function permits it. Pass context.TODO | ||||||
|  | // if you are unsure about which Context to use. | ||||||
|  | // | ||||||
|  | // Use context Values only for request-scoped data that transits processes and | ||||||
|  | // APIs, not for passing optional parameters to functions. | ||||||
|  | // | ||||||
|  | // The same Context may be passed to functions running in different goroutines; | ||||||
|  | // Contexts are safe for simultaneous use by multiple goroutines. | ||||||
|  | // | ||||||
|  | // See https://blog.golang.org/context for example code for a server that uses | ||||||
|  | // Contexts. | ||||||
|  |  | ||||||
|  | // A Context carries a deadline, a cancellation signal, and other values across | ||||||
|  | // API boundaries. | ||||||
|  | // | ||||||
|  | // Context's methods may be called by multiple goroutines simultaneously. | ||||||
|  | type Context interface { | ||||||
|  | 	// Deadline returns the time when work done on behalf of this context | ||||||
|  | 	// should be canceled. Deadline returns ok==false when no deadline is | ||||||
|  | 	// set. Successive calls to Deadline return the same results. | ||||||
|  | 	Deadline() (deadline time.Time, ok bool) | ||||||
|  |  | ||||||
|  | 	// Done returns a channel that's closed when work done on behalf of this | ||||||
|  | 	// context should be canceled. Done may return nil if this context can | ||||||
|  | 	// never be canceled. Successive calls to Done return the same value. | ||||||
|  | 	// The close of the Done channel may happen asynchronously, | ||||||
|  | 	// after the cancel function returns. | ||||||
|  | 	// | ||||||
|  | 	// WithCancel arranges for Done to be closed when cancel is called; | ||||||
|  | 	// WithDeadline arranges for Done to be closed when the deadline | ||||||
|  | 	// expires; WithTimeout arranges for Done to be closed when the timeout | ||||||
|  | 	// elapses. | ||||||
|  | 	// | ||||||
|  | 	// Done is provided for use in select statements: | ||||||
|  | 	// | ||||||
|  | 	//  // Stream generates values with DoSomething and sends them to out | ||||||
|  | 	//  // until DoSomething returns an error or ctx.Done is closed. | ||||||
|  | 	//  func Stream(ctx context.Context, out chan<- Value) error { | ||||||
|  | 	//  	for { | ||||||
|  | 	//  		v, err := DoSomething(ctx) | ||||||
|  | 	//  		if err != nil { | ||||||
|  | 	//  			return err | ||||||
|  | 	//  		} | ||||||
|  | 	//  		select { | ||||||
|  | 	//  		case <-ctx.Done(): | ||||||
|  | 	//  			return ctx.Err() | ||||||
|  | 	//  		case out <- v: | ||||||
|  | 	//  		} | ||||||
|  | 	//  	} | ||||||
|  | 	//  } | ||||||
|  | 	// | ||||||
|  | 	// See https://blog.golang.org/pipelines for more examples of how to use | ||||||
|  | 	// a Done channel for cancellation. | ||||||
|  | 	Done() <-chan struct{} | ||||||
|  |  | ||||||
|  | 	// If Done is not yet closed, Err returns nil. | ||||||
|  | 	// If Done is closed, Err returns a non-nil error explaining why: | ||||||
|  | 	// Canceled if the context was canceled | ||||||
|  | 	// or DeadlineExceeded if the context's deadline passed. | ||||||
|  | 	// After Err returns a non-nil error, successive calls to Err return the same error. | ||||||
|  | 	Err() error | ||||||
|  |  | ||||||
|  | 	// Value returns the value associated with this context for key, or nil | ||||||
|  | 	// if no value is associated with key. Successive calls to Value with | ||||||
|  | 	// the same key returns the same result. | ||||||
|  | 	// | ||||||
|  | 	// Use context values only for request-scoped data that transits | ||||||
|  | 	// processes and API boundaries, not for passing optional parameters to | ||||||
|  | 	// functions. | ||||||
|  | 	// | ||||||
|  | 	// A key identifies a specific value in a Context. Functions that wish | ||||||
|  | 	// to store values in Context typically allocate a key in a global | ||||||
|  | 	// variable then use that key as the argument to context.WithValue and | ||||||
|  | 	// Context.Value. A key can be any type that supports equality; | ||||||
|  | 	// packages should define keys as an unexported type to avoid | ||||||
|  | 	// collisions. | ||||||
|  | 	// | ||||||
|  | 	// Packages that define a Context key should provide type-safe accessors | ||||||
|  | 	// for the values stored using that key: | ||||||
|  | 	// | ||||||
|  | 	// 	// Package user defines a User type that's stored in Contexts. | ||||||
|  | 	// 	package user | ||||||
|  | 	// | ||||||
|  | 	// 	import "context" | ||||||
|  | 	// | ||||||
|  | 	// 	// User is the type of value stored in the Contexts. | ||||||
|  | 	// 	type User struct {...} | ||||||
|  | 	// | ||||||
|  | 	// 	// key is an unexported type for keys defined in this package. | ||||||
|  | 	// 	// This prevents collisions with keys defined in other packages. | ||||||
|  | 	// 	type key int | ||||||
|  | 	// | ||||||
|  | 	// 	// userKey is the key for user.User values in Contexts. It is | ||||||
|  | 	// 	// unexported; clients use user.NewContext and user.FromContext | ||||||
|  | 	// 	// instead of using this key directly. | ||||||
|  | 	// 	var userKey key | ||||||
|  | 	// | ||||||
|  | 	// 	// NewContext returns a new Context that carries value u. | ||||||
|  | 	// 	func NewContext(ctx context.Context, u *User) context.Context { | ||||||
|  | 	// 		return context.WithValue(ctx, userKey, u) | ||||||
|  | 	// 	} | ||||||
|  | 	// | ||||||
|  | 	// 	// FromContext returns the User value stored in ctx, if any. | ||||||
|  | 	// 	func FromContext(ctx context.Context) (*User, bool) { | ||||||
|  | 	// 		u, ok := ctx.Value(userKey).(*User) | ||||||
|  | 	// 		return u, ok | ||||||
|  | 	// 	} | ||||||
|  | 	Value(key interface{}) interface{} | ||||||
|  | } | ||||||
|  |  | ||||||
|  | // Canceled is the error returned by Context.Err when the context is canceled. | ||||||
|  | var Canceled = errors.New("context canceled") | ||||||
|  |  | ||||||
|  | // DeadlineExceeded is the error returned by Context.Err when the context's | ||||||
|  | // deadline passes. | ||||||
|  | var DeadlineExceeded error = deadlineExceededError{} | ||||||
|  |  | ||||||
|  | type deadlineExceededError struct{} | ||||||
|  |  | ||||||
|  | func (deadlineExceededError) Error() string   { return "context deadline exceeded" } | ||||||
|  | func (deadlineExceededError) Timeout() bool   { return true } | ||||||
|  | func (deadlineExceededError) Temporary() bool { return true } | ||||||
|  |  | ||||||
|  | // An emptyCtx is never canceled, has no values, and has no deadline. It is not | ||||||
|  | // struct{}, since vars of this type must have distinct addresses. | ||||||
|  | type emptyCtx int | ||||||
|  |  | ||||||
|  | func (*emptyCtx) Deadline() (deadline time.Time, ok bool) { | ||||||
|  | 	return | ||||||
|  | } | ||||||
|  |  | ||||||
|  | func (*emptyCtx) Done() <-chan struct{} { | ||||||
|  | 	return nil | ||||||
|  | } | ||||||
|  |  | ||||||
|  | func (*emptyCtx) Err() error { | ||||||
|  | 	return nil | ||||||
|  | } | ||||||
|  |  | ||||||
|  | func (*emptyCtx) Value(key interface{}) interface{} { | ||||||
|  | 	return nil | ||||||
|  | } | ||||||
|  |  | ||||||
|  | func (e *emptyCtx) String() string { | ||||||
|  | 	switch e { | ||||||
|  | 	case background: | ||||||
|  | 		return "context.Background" | ||||||
|  | 	case todo: | ||||||
|  | 		return "context.TODO" | ||||||
|  | 	} | ||||||
|  | 	return "unknown empty Context" | ||||||
|  | } | ||||||
|  |  | ||||||
|  | var ( | ||||||
|  | 	background = new(emptyCtx) | ||||||
|  | 	todo       = new(emptyCtx) | ||||||
|  | ) | ||||||
|  |  | ||||||
|  | // Background returns a non-nil, empty Context. It is never canceled, has no | ||||||
|  | // values, and has no deadline. It is typically used by the main function, | ||||||
|  | // initialization, and tests, and as the top-level Context for incoming | ||||||
|  | // requests. | ||||||
|  | func Background() Context { | ||||||
|  | 	return background | ||||||
|  | } | ||||||
|  |  | ||||||
|  | // TODO returns a non-nil, empty Context. Code should use context.TODO when | ||||||
|  | // it's unclear which Context to use or it is not yet available (because the | ||||||
|  | // surrounding function has not yet been extended to accept a Context | ||||||
|  | // parameter). | ||||||
|  | func TODO() Context { | ||||||
|  | 	return todo | ||||||
|  | } | ||||||
|  |  | ||||||
|  | // A CancelFunc tells an operation to abandon its work. | ||||||
|  | // A CancelFunc does not wait for the work to stop. | ||||||
|  | // A CancelFunc may be called by multiple goroutines simultaneously. | ||||||
|  | // After the first call, subsequent calls to a CancelFunc do nothing. | ||||||
|  | type CancelFunc func() | ||||||
|  |  | ||||||
|  | // WithCancel returns a copy of parent with a new Done channel. The returned | ||||||
|  | // context's Done channel is closed when the returned cancel function is called | ||||||
|  | // or when the parent context's Done channel is closed, whichever happens first. | ||||||
|  | // | ||||||
|  | // Canceling this context releases resources associated with it, so code should | ||||||
|  | // call cancel as soon as the operations running in this Context complete. | ||||||
|  | func WithCancel(parent Context) (ctx Context, cancel CancelFunc) { | ||||||
|  | 	if parent == nil { | ||||||
|  | 		panic("cannot create context from nil parent") | ||||||
|  | 	} | ||||||
|  | 	c := newCancelCtx(parent) | ||||||
|  | 	propagateCancel(parent, &c) | ||||||
|  | 	return &c, func() { c.cancel(true, Canceled) } | ||||||
|  | } | ||||||
|  |  | ||||||
|  | // newCancelCtx returns an initialized cancelCtx. | ||||||
|  | func newCancelCtx(parent Context) cancelCtx { | ||||||
|  | 	return cancelCtx{Context: parent} | ||||||
|  | } | ||||||
|  |  | ||||||
|  | // goroutines counts the number of goroutines ever created; for testing. | ||||||
|  | var goroutines int32 | ||||||
|  |  | ||||||
|  | // propagateCancel arranges for child to be canceled when parent is. | ||||||
|  | func propagateCancel(parent Context, child canceler) { | ||||||
|  | 	done := parent.Done() | ||||||
|  | 	if done == nil { | ||||||
|  | 		return // parent is never canceled | ||||||
|  | 	} | ||||||
|  |  | ||||||
|  | 	select { | ||||||
|  | 	case <-done: | ||||||
|  | 		// parent is already canceled | ||||||
|  | 		child.cancel(false, parent.Err()) | ||||||
|  | 		return | ||||||
|  | 	default: | ||||||
|  | 	} | ||||||
|  |  | ||||||
|  | 	if p, ok := parentCancelCtx(parent); ok { | ||||||
|  | 		p.mu.Lock() | ||||||
|  | 		if p.err != nil { | ||||||
|  | 			// parent has already been canceled | ||||||
|  | 			child.cancel(false, p.err) | ||||||
|  | 		} else { | ||||||
|  | 			if p.children == nil { | ||||||
|  | 				p.children = make(map[canceler]struct{}) | ||||||
|  | 			} | ||||||
|  | 			p.children[child] = struct{}{} | ||||||
|  | 		} | ||||||
|  | 		p.mu.Unlock() | ||||||
|  | 	} else { | ||||||
|  | 		atomic.AddInt32(&goroutines, +1) | ||||||
|  | 		go func() { | ||||||
|  | 			select { | ||||||
|  | 			case <-parent.Done(): | ||||||
|  | 				child.cancel(false, parent.Err()) | ||||||
|  | 			case <-child.Done(): | ||||||
|  | 			} | ||||||
|  | 		}() | ||||||
|  | 	} | ||||||
|  | } | ||||||
|  |  | ||||||
|  | // &cancelCtxKey is the key that a cancelCtx returns itself for. | ||||||
|  | var cancelCtxKey int | ||||||
|  |  | ||||||
|  | // parentCancelCtx returns the underlying *cancelCtx for parent. | ||||||
|  | // It does this by looking up parent.Value(&cancelCtxKey) to find | ||||||
|  | // the innermost enclosing *cancelCtx and then checking whether | ||||||
|  | // parent.Done() matches that *cancelCtx. (If not, the *cancelCtx | ||||||
|  | // has been wrapped in a custom implementation providing a | ||||||
|  | // different done channel, in which case we should not bypass it.) | ||||||
|  | func parentCancelCtx(parent Context) (*cancelCtx, bool) { | ||||||
|  | 	done := parent.Done() | ||||||
|  | 	if done == closedchan || done == nil { | ||||||
|  | 		return nil, false | ||||||
|  | 	} | ||||||
|  | 	p, ok := parent.Value(&cancelCtxKey).(*cancelCtx) | ||||||
|  | 	if !ok { | ||||||
|  | 		return nil, false | ||||||
|  | 	} | ||||||
|  | 	pdone, _ := p.done.Load().(chan struct{}) | ||||||
|  | 	if pdone != done { | ||||||
|  | 		return nil, false | ||||||
|  | 	} | ||||||
|  | 	return p, true | ||||||
|  | } | ||||||
|  |  | ||||||
|  | // removeChild removes a context from its parent. | ||||||
|  | func removeChild(parent Context, child canceler) { | ||||||
|  | 	p, ok := parentCancelCtx(parent) | ||||||
|  | 	if !ok { | ||||||
|  | 		return | ||||||
|  | 	} | ||||||
|  | 	p.mu.Lock() | ||||||
|  | 	if p.children != nil { | ||||||
|  | 		delete(p.children, child) | ||||||
|  | 	} | ||||||
|  | 	p.mu.Unlock() | ||||||
|  | } | ||||||
|  |  | ||||||
|  | // A canceler is a context type that can be canceled directly. The | ||||||
|  | // implementations are *cancelCtx and *timerCtx. | ||||||
|  | type canceler interface { | ||||||
|  | 	cancel(removeFromParent bool, err error) | ||||||
|  | 	Done() <-chan struct{} | ||||||
|  | } | ||||||
|  |  | ||||||
|  | // closedchan is a reusable closed channel. | ||||||
|  | var closedchan = make(chan struct{}) | ||||||
|  |  | ||||||
|  | func init() { | ||||||
|  | 	close(closedchan) | ||||||
|  | } | ||||||
|  |  | ||||||
|  | // A cancelCtx can be canceled. When canceled, it also cancels any children | ||||||
|  | // that implement canceler. | ||||||
|  | type cancelCtx struct { | ||||||
|  | 	Context | ||||||
|  |  | ||||||
|  | 	mu       sync.Mutex            // protects following fields | ||||||
|  | 	done     atomic.Value          // of chan struct{}, created lazily, closed by first cancel call | ||||||
|  | 	children map[canceler]struct{} // set to nil by the first cancel call | ||||||
|  | 	err      error                 // set to non-nil by the first cancel call | ||||||
|  | } | ||||||
|  |  | ||||||
|  | func (c *cancelCtx) Value(key interface{}) interface{} { | ||||||
|  | 	if key == &cancelCtxKey { | ||||||
|  | 		return c | ||||||
|  | 	} | ||||||
|  | 	return c.Context.Value(key) | ||||||
|  | } | ||||||
|  |  | ||||||
|  | func (c *cancelCtx) Done() <-chan struct{} { | ||||||
|  | 	d := c.done.Load() | ||||||
|  | 	if d != nil { | ||||||
|  | 		return d.(chan struct{}) | ||||||
|  | 	} | ||||||
|  | 	c.mu.Lock() | ||||||
|  | 	defer c.mu.Unlock() | ||||||
|  | 	d = c.done.Load() | ||||||
|  | 	if d == nil { | ||||||
|  | 		d = make(chan struct{}) | ||||||
|  | 		c.done.Store(d) | ||||||
|  | 	} | ||||||
|  | 	return d.(chan struct{}) | ||||||
|  | } | ||||||
|  |  | ||||||
|  | func (c *cancelCtx) Err() error { | ||||||
|  | 	c.mu.Lock() | ||||||
|  | 	err := c.err | ||||||
|  | 	c.mu.Unlock() | ||||||
|  | 	return err | ||||||
|  | } | ||||||
|  |  | ||||||
|  | type stringer interface { | ||||||
|  | 	String() string | ||||||
|  | } | ||||||
|  |  | ||||||
|  | func contextName(c Context) string { | ||||||
|  | 	if s, ok := c.(stringer); ok { | ||||||
|  | 		return s.String() | ||||||
|  | 	} | ||||||
|  | 	return reflect.TypeOf(c).String() | ||||||
|  | } | ||||||
|  |  | ||||||
|  | func (c *cancelCtx) String() string { | ||||||
|  | 	return contextName(c.Context) + ".WithCancel" | ||||||
|  | } | ||||||
|  |  | ||||||
|  | // cancel closes c.done, cancels each of c's children, and, if | ||||||
|  | // removeFromParent is true, removes c from its parent's children. | ||||||
|  | func (c *cancelCtx) cancel(removeFromParent bool, err error) { | ||||||
|  | 	if err == nil { | ||||||
|  | 		panic("context: internal error: missing cancel error") | ||||||
|  | 	} | ||||||
|  | 	c.mu.Lock() | ||||||
|  | 	if c.err != nil { | ||||||
|  | 		c.mu.Unlock() | ||||||
|  | 		return // already canceled | ||||||
|  | 	} | ||||||
|  | 	c.err = err | ||||||
|  | 	d, _ := c.done.Load().(chan struct{}) | ||||||
|  | 	if d == nil { | ||||||
|  | 		c.done.Store(closedchan) | ||||||
|  | 	} else { | ||||||
|  | 		close(d) | ||||||
|  | 	} | ||||||
|  | 	for child := range c.children { | ||||||
|  | 		// NOTE: acquiring the child's lock while holding parent's lock. | ||||||
|  | 		child.cancel(false, err) | ||||||
|  | 	} | ||||||
|  | 	c.children = nil | ||||||
|  | 	c.mu.Unlock() | ||||||
|  |  | ||||||
|  | 	if removeFromParent { | ||||||
|  | 		removeChild(c.Context, c) | ||||||
|  | 	} | ||||||
|  | } | ||||||
|  |  | ||||||
|  | // WithDeadline returns a copy of the parent context with the deadline adjusted | ||||||
|  | // to be no later than d. If the parent's deadline is already earlier than d, | ||||||
|  | // WithDeadline(parent, d) is semantically equivalent to parent. The returned | ||||||
|  | // context's Done channel is closed when the deadline expires, when the returned | ||||||
|  | // cancel function is called, or when the parent context's Done channel is | ||||||
|  | // closed, whichever happens first. | ||||||
|  | // | ||||||
|  | // Canceling this context releases resources associated with it, so code should | ||||||
|  | // call cancel as soon as the operations running in this Context complete. | ||||||
|  | func WithDeadline(parent Context, d time.Time) (Context, CancelFunc) { | ||||||
|  | 	if parent == nil { | ||||||
|  | 		panic("cannot create context from nil parent") | ||||||
|  | 	} | ||||||
|  | 	if cur, ok := parent.Deadline(); ok && cur.Before(d) { | ||||||
|  | 		// The current deadline is already sooner than the new one. | ||||||
|  | 		return WithCancel(parent) | ||||||
|  | 	} | ||||||
|  | 	c := &timerCtx{ | ||||||
|  | 		cancelCtx: newCancelCtx(parent), | ||||||
|  | 		deadline:  d, | ||||||
|  | 	} | ||||||
|  | 	propagateCancel(parent, c) | ||||||
|  | 	dur := time.Until(d) | ||||||
|  | 	if dur <= 0 { | ||||||
|  | 		c.cancel(true, DeadlineExceeded) // deadline has already passed | ||||||
|  | 		return c, func() { c.cancel(false, Canceled) } | ||||||
|  | 	} | ||||||
|  | 	c.mu.Lock() | ||||||
|  | 	defer c.mu.Unlock() | ||||||
|  | 	if c.err == nil { | ||||||
|  | 		c.timer = time.AfterFunc(dur, func() { | ||||||
|  | 			c.cancel(true, DeadlineExceeded) | ||||||
|  | 		}) | ||||||
|  | 	} | ||||||
|  | 	return c, func() { c.cancel(true, Canceled) } | ||||||
|  | } | ||||||
|  |  | ||||||
|  | // A timerCtx carries a timer and a deadline. It embeds a cancelCtx to | ||||||
|  | // implement Done and Err. It implements cancel by stopping its timer then | ||||||
|  | // delegating to cancelCtx.cancel. | ||||||
|  | type timerCtx struct { | ||||||
|  | 	cancelCtx | ||||||
|  | 	timer *time.Timer // Under cancelCtx.mu. | ||||||
|  |  | ||||||
|  | 	deadline time.Time | ||||||
|  | } | ||||||
|  |  | ||||||
|  | func (c *timerCtx) Deadline() (deadline time.Time, ok bool) { | ||||||
|  | 	return c.deadline, true | ||||||
|  | } | ||||||
|  |  | ||||||
|  | func (c *timerCtx) String() string { | ||||||
|  | 	return contextName(c.cancelCtx.Context) + ".WithDeadline(" + | ||||||
|  | 		c.deadline.String() + " [" + | ||||||
|  | 		time.Until(c.deadline).String() + "])" | ||||||
|  | } | ||||||
|  |  | ||||||
|  | func (c *timerCtx) cancel(removeFromParent bool, err error) { | ||||||
|  | 	c.cancelCtx.cancel(false, err) | ||||||
|  | 	if removeFromParent { | ||||||
|  | 		// Remove this timerCtx from its parent cancelCtx's children. | ||||||
|  | 		removeChild(c.cancelCtx.Context, c) | ||||||
|  | 	} | ||||||
|  | 	c.mu.Lock() | ||||||
|  | 	if c.timer != nil { | ||||||
|  | 		c.timer.Stop() | ||||||
|  | 		c.timer = nil | ||||||
|  | 	} | ||||||
|  | 	c.mu.Unlock() | ||||||
|  | } | ||||||
|  |  | ||||||
|  | // WithTimeout returns WithDeadline(parent, time.Now().Add(timeout)). | ||||||
|  | // | ||||||
|  | // Canceling this context releases resources associated with it, so code should | ||||||
|  | // call cancel as soon as the operations running in this Context complete: | ||||||
|  | // | ||||||
|  | // 	func slowOperationWithTimeout(ctx context.Context) (Result, error) { | ||||||
|  | // 		ctx, cancel := context.WithTimeout(ctx, 100*time.Millisecond) | ||||||
|  | // 		defer cancel()  // releases resources if slowOperation completes before timeout elapses | ||||||
|  | // 		return slowOperation(ctx) | ||||||
|  | // 	} | ||||||
|  | func WithTimeout(parent Context, timeout time.Duration) (Context, CancelFunc) { | ||||||
|  | 	return WithDeadline(parent, time.Now().Add(timeout)) | ||||||
|  | } | ||||||
|  |  | ||||||
|  | // WithValue returns a copy of parent in which the value associated with key is | ||||||
|  | // val. | ||||||
|  | // | ||||||
|  | // Use context Values only for request-scoped data that transits processes and | ||||||
|  | // APIs, not for passing optional parameters to functions. | ||||||
|  | // | ||||||
|  | // The provided key must be comparable and should not be of type | ||||||
|  | // string or any other built-in type to avoid collisions between | ||||||
|  | // packages using context. Users of WithValue should define their own | ||||||
|  | // types for keys. To avoid allocating when assigning to an | ||||||
|  | // interface{}, context keys often have concrete type | ||||||
|  | // struct{}. Alternatively, exported context key variables' static | ||||||
|  | // type should be a pointer or interface. | ||||||
|  | func WithValue(parent Context, key, val interface{}) Context { | ||||||
|  | 	if parent == nil { | ||||||
|  | 		panic("cannot create context from nil parent") | ||||||
|  | 	} | ||||||
|  | 	if key == nil { | ||||||
|  | 		panic("nil key") | ||||||
|  | 	} | ||||||
|  | 	if !reflect.TypeOf(key).Comparable() { | ||||||
|  | 		panic("key is not comparable") | ||||||
|  | 	} | ||||||
|  | 	return &valueCtx{parent, key, val} | ||||||
|  | } | ||||||
|  |  | ||||||
|  | // A valueCtx carries a key-value pair. It implements Value for that key and | ||||||
|  | // delegates all other calls to the embedded Context. | ||||||
|  | type valueCtx struct { | ||||||
|  | 	Context | ||||||
|  | 	key, val interface{} | ||||||
|  | } | ||||||
|  |  | ||||||
|  | // stringify tries a bit to stringify v, without using fmt, since we don't | ||||||
|  | // want context depending on the unicode tables. This is only used by | ||||||
|  | // *valueCtx.String(). | ||||||
|  | func stringify(v interface{}) string { | ||||||
|  | 	switch s := v.(type) { | ||||||
|  | 	case stringer: | ||||||
|  | 		return s.String() | ||||||
|  | 	case string: | ||||||
|  | 		return s | ||||||
|  | 	} | ||||||
|  | 	return "<not Stringer>" | ||||||
|  | } | ||||||
|  |  | ||||||
|  | func (c *valueCtx) String() string { | ||||||
|  | 	return contextName(c.Context) + ".WithValue(type " + | ||||||
|  | 		reflect.TypeOf(c.key).String() + | ||||||
|  | 		", val " + stringify(c.val) + ")" | ||||||
|  | } | ||||||
|  |  | ||||||
|  | func (c *valueCtx) Value(key interface{}) interface{} { | ||||||
|  | 	if c.key == key { | ||||||
|  | 		return c.val | ||||||
|  | 	} | ||||||
|  | 	return c.Context.Value(key) | ||||||
|  | } | ||||||
|  |  | ||||||
|  | // ======================== 以上为 context.go 源码 | ||||||
|  |  | ||||||
|  | // MyContext 自定义 context | ||||||
|  | // | ||||||
|  | // Author : go_developer@163.com<白茶清欢> | ||||||
|  | // | ||||||
|  | // Date : 12:45 下午 2021/12/2 | ||||||
|  | type MyContext struct { | ||||||
|  | 	Context | ||||||
|  | } | ||||||
							
								
								
									
										42
									
								
								demo/context_test.go
									
									
									
									
									
										Normal file
									
								
							
							
						
						
									
										42
									
								
								demo/context_test.go
									
									
									
									
									
										Normal file
									
								
							| @ -0,0 +1,42 @@ | |||||||
|  | // Package demo ... | ||||||
|  | // | ||||||
|  | // Description : demo ... | ||||||
|  | // | ||||||
|  | // Author : go_developer@163.com<白茶清欢> | ||||||
|  | // | ||||||
|  | // Date : 2021-12-02 12:46 下午 | ||||||
|  | package demo | ||||||
|  |  | ||||||
|  | import ( | ||||||
|  | 	"fmt" | ||||||
|  | 	"reflect" | ||||||
|  | 	"testing" | ||||||
|  | 	"time" | ||||||
|  | ) | ||||||
|  |  | ||||||
|  | // TestCancelCtx_UDC 测试自定义context | ||||||
|  | // | ||||||
|  | // Author : go_developer@163.com<白茶清欢> | ||||||
|  | // | ||||||
|  | // Date : 12:46 下午 2021/12/2 | ||||||
|  | func TestCancelCtx_UDC(t *testing.T) { | ||||||
|  | 	childCancel := true | ||||||
|  |  | ||||||
|  | 	parentCtx, parentFunc := WithCancel(Background()) | ||||||
|  | 	mctx := MyContext{parentCtx} | ||||||
|  |  | ||||||
|  | 	childCtx, childFun := WithCancel(mctx) | ||||||
|  |  | ||||||
|  | 	if childCancel { | ||||||
|  | 		childFun() | ||||||
|  | 	} else { | ||||||
|  | 		parentFunc() | ||||||
|  | 	} | ||||||
|  |  | ||||||
|  | 	fmt.Println("parent context => ", parentCtx, reflect.TypeOf(parentCtx).String()) | ||||||
|  | 	fmt.Println("my context => ", mctx, reflect.TypeOf(mctx).String()) | ||||||
|  | 	fmt.Println("child context => ", childCtx, reflect.TypeOf(childCtx).String()) | ||||||
|  |  | ||||||
|  | 	// 防止主协程退出太快,子协程来不及打印 | ||||||
|  | 	time.Sleep(5 * time.Second) | ||||||
|  | } | ||||||
| @ -1,6 +1,6 @@ | |||||||
| // Package easylock... | // Package easylock ... | ||||||
| // | // | ||||||
| // Description : easylock... | // Description : easylock ... | ||||||
| // | // | ||||||
| // Author : go_developer@163.com<白茶清欢> | // Author : go_developer@163.com<白茶清欢> | ||||||
| // | // | ||||||
|  | |||||||
| @ -11,7 +11,7 @@ type option struct { | |||||||
| 	flag string // 锁的标识 | 	flag string // 锁的标识 | ||||||
| } | } | ||||||
|  |  | ||||||
| // Option 设置option选项 | // OptionFunc 设置option选项 | ||||||
| // | // | ||||||
| // Author : go_developer@163.com<白茶清欢> | // Author : go_developer@163.com<白茶清欢> | ||||||
| // | // | ||||||
|  | |||||||
| @ -1,6 +1,6 @@ | |||||||
| // Package easylock... | // Package easylock ... | ||||||
| // | // | ||||||
| // Description : easylock... | // Description : easylock ... | ||||||
| // | // | ||||||
| // Author : go_developer@163.com<白茶清欢> | // Author : go_developer@163.com<白茶清欢> | ||||||
| // | // | ||||||
|  | |||||||
| @ -1,4 +1,4 @@ | |||||||
| // Package easylock... | // Package easylock ... | ||||||
| // | // | ||||||
| // Description : 包装各种姿势的锁 | // Description : 包装各种姿势的锁 | ||||||
| // | // | ||||||
|  | |||||||
| @ -1,4 +1,4 @@ | |||||||
| // Package easylock... | // Package easylock ... | ||||||
| // | // | ||||||
| // Description : 分段的锁 | // Description : 分段的锁 | ||||||
| // | // | ||||||
|  | |||||||
							
								
								
									
										18
									
								
								gin/static/define.go
									
									
									
									
									
										Normal file
									
								
							
							
						
						
									
										18
									
								
								gin/static/define.go
									
									
									
									
									
										Normal file
									
								
							| @ -0,0 +1,18 @@ | |||||||
|  | // Package static ... | ||||||
|  | // | ||||||
|  | // Description : static | ||||||
|  | // | ||||||
|  | // Author : go_developer@163.com<白茶清欢> | ||||||
|  | // | ||||||
|  | // Date : 2021/12/24 2:18 PM | ||||||
|  | package static | ||||||
|  |  | ||||||
|  | // MapRule 定义映射规则 | ||||||
|  | // | ||||||
|  | // Author : go_developer@163.com<白茶清欢> | ||||||
|  | // | ||||||
|  | // Date : 2:18 PM 2021/12/24 | ||||||
|  | type MapRule struct { | ||||||
|  | 	URIPrefix     string `json:"uri_prefix"`      // 路由前缀 | ||||||
|  | 	StaticDirPath string `json:"static_dir_path"` // 静态资源路由 | ||||||
|  | } | ||||||
							
								
								
									
										25
									
								
								gin/static/static.go
									
									
									
									
									
										Normal file
									
								
							
							
						
						
									
										25
									
								
								gin/static/static.go
									
									
									
									
									
										Normal file
									
								
							| @ -0,0 +1,25 @@ | |||||||
|  | // Package static ... | ||||||
|  | // | ||||||
|  | // Description : 启动静态资源服务器 | ||||||
|  | // | ||||||
|  | // Author : go_developer@163.com<白茶清欢> | ||||||
|  | // | ||||||
|  | // Date : 2021/12/24 2:14 PM | ||||||
|  | package static | ||||||
|  |  | ||||||
|  | import ( | ||||||
|  | 	"net/http" | ||||||
|  |  | ||||||
|  | 	"github.com/gin-gonic/gin" | ||||||
|  | ) | ||||||
|  |  | ||||||
|  | // Register 静态资源服务器 | ||||||
|  | // | ||||||
|  | // Author : go_developer@163.com<白茶清欢> | ||||||
|  | // | ||||||
|  | // Date : 2:17 PM 2021/12/24 | ||||||
|  | func Register(router *gin.Engine, ruleList []*MapRule) { | ||||||
|  | 	for _, rule := range ruleList { | ||||||
|  | 		router.StaticFS(rule.URIPrefix, http.Dir(rule.StaticDirPath)) | ||||||
|  | 	} | ||||||
|  | } | ||||||
							
								
								
									
										4
									
								
								go.mod
									
									
									
									
									
								
							
							
						
						
									
										4
									
								
								go.mod
									
									
									
									
									
								
							| @ -27,7 +27,7 @@ require ( | |||||||
| 	gopkg.in/gomail.v2 v2.0.0-20160411212932-81ebce5c23df | 	gopkg.in/gomail.v2 v2.0.0-20160411212932-81ebce5c23df | ||||||
| 	gopkg.in/yaml.v2 v2.4.0 | 	gopkg.in/yaml.v2 v2.4.0 | ||||||
| 	gorm.io/driver/mysql v1.2.0 | 	gorm.io/driver/mysql v1.2.0 | ||||||
| 	gorm.io/gorm v1.22.3 | 	gorm.io/gorm v1.22.4 | ||||||
| ) | ) | ||||||
|  |  | ||||||
| require ( | require ( | ||||||
| @ -68,7 +68,7 @@ require ( | |||||||
| 	github.com/jcmturner/gokrb5/v8 v8.4.2 // indirect | 	github.com/jcmturner/gokrb5/v8 v8.4.2 // indirect | ||||||
| 	github.com/jcmturner/rpc/v2 v2.0.3 // indirect | 	github.com/jcmturner/rpc/v2 v2.0.3 // indirect | ||||||
| 	github.com/jinzhu/inflection v1.0.0 // indirect | 	github.com/jinzhu/inflection v1.0.0 // indirect | ||||||
| 	github.com/jinzhu/now v1.1.2 // indirect | 	github.com/jinzhu/now v1.1.4 // indirect | ||||||
| 	github.com/jonboulle/clockwork v0.2.2 // indirect | 	github.com/jonboulle/clockwork v0.2.2 // indirect | ||||||
| 	github.com/json-iterator/go v1.1.11 // indirect | 	github.com/json-iterator/go v1.1.11 // indirect | ||||||
| 	github.com/klauspost/compress v1.13.6 // indirect | 	github.com/klauspost/compress v1.13.6 // indirect | ||||||
|  | |||||||
							
								
								
									
										7
									
								
								go.sum
									
									
									
									
									
								
							
							
						
						
									
										7
									
								
								go.sum
									
									
									
									
									
								
							| @ -292,8 +292,10 @@ github.com/jcmturner/rpc/v2 v2.0.3 h1:7FXXj8Ti1IaVFpSAziCZWNzbNuZmnvw/i6CqLNdWfZ | |||||||
| github.com/jcmturner/rpc/v2 v2.0.3/go.mod h1:VUJYCIDm3PVOEHw8sgt091/20OJjskO/YJki3ELg/Hc= | github.com/jcmturner/rpc/v2 v2.0.3/go.mod h1:VUJYCIDm3PVOEHw8sgt091/20OJjskO/YJki3ELg/Hc= | ||||||
| github.com/jinzhu/inflection v1.0.0 h1:K317FqzuhWc8YvSVlFMCCUb36O/S9MCKRDI7QkRKD/E= | github.com/jinzhu/inflection v1.0.0 h1:K317FqzuhWc8YvSVlFMCCUb36O/S9MCKRDI7QkRKD/E= | ||||||
| github.com/jinzhu/inflection v1.0.0/go.mod h1:h+uFLlag+Qp1Va5pdKtLDYj+kHp5pxUVkryuEj+Srlc= | github.com/jinzhu/inflection v1.0.0/go.mod h1:h+uFLlag+Qp1Va5pdKtLDYj+kHp5pxUVkryuEj+Srlc= | ||||||
| github.com/jinzhu/now v1.1.2 h1:eVKgfIdy9b6zbWBMgFpfDPoAMifwSZagU9HmEU6zgiI= |  | ||||||
| github.com/jinzhu/now v1.1.2/go.mod h1:d3SSVoowX0Lcu0IBviAWJpolVfI5UJVZZ7cO71lE/z8= | github.com/jinzhu/now v1.1.2/go.mod h1:d3SSVoowX0Lcu0IBviAWJpolVfI5UJVZZ7cO71lE/z8= | ||||||
|  | github.com/jinzhu/now v1.1.3/go.mod h1:d3SSVoowX0Lcu0IBviAWJpolVfI5UJVZZ7cO71lE/z8= | ||||||
|  | github.com/jinzhu/now v1.1.4 h1:tHnRBy1i5F2Dh8BAFxqFzxKqqvezXrL2OW1TnX+Mlas= | ||||||
|  | github.com/jinzhu/now v1.1.4/go.mod h1:d3SSVoowX0Lcu0IBviAWJpolVfI5UJVZZ7cO71lE/z8= | ||||||
| github.com/jonboulle/clockwork v0.2.2 h1:UOGuzwb1PwsrDAObMuhUnj0p5ULPj8V/xJ7Kx9qUBdQ= | github.com/jonboulle/clockwork v0.2.2 h1:UOGuzwb1PwsrDAObMuhUnj0p5ULPj8V/xJ7Kx9qUBdQ= | ||||||
| github.com/jonboulle/clockwork v0.2.2/go.mod h1:Pkfl5aHPm1nk2H9h0bjmnJD/BcgbGXUBGnn1kMkgxc8= | github.com/jonboulle/clockwork v0.2.2/go.mod h1:Pkfl5aHPm1nk2H9h0bjmnJD/BcgbGXUBGnn1kMkgxc8= | ||||||
| github.com/jpillora/backoff v1.0.0/go.mod h1:J/6gKK9jxlEcS3zixgDgUAsiuZ7yrSoa/FX5e0EB2j4= | github.com/jpillora/backoff v1.0.0/go.mod h1:J/6gKK9jxlEcS3zixgDgUAsiuZ7yrSoa/FX5e0EB2j4= | ||||||
| @ -931,8 +933,9 @@ gopkg.in/yaml.v3 v3.0.0-20210107192922-496545a6307b h1:h8qDotaEPuJATrMmW04NCwg7v | |||||||
| gopkg.in/yaml.v3 v3.0.0-20210107192922-496545a6307b/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM= | gopkg.in/yaml.v3 v3.0.0-20210107192922-496545a6307b/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM= | ||||||
| gorm.io/driver/mysql v1.2.0 h1:l8+9VwjjyzEkw0PNPBOr2JHhLOGVk7XEnl5hk42bcvs= | gorm.io/driver/mysql v1.2.0 h1:l8+9VwjjyzEkw0PNPBOr2JHhLOGVk7XEnl5hk42bcvs= | ||||||
| gorm.io/driver/mysql v1.2.0/go.mod h1:4RQmTg4okPghdt+kbe6e1bTXIQp7Ny1NnBn/3Z6ghjk= | gorm.io/driver/mysql v1.2.0/go.mod h1:4RQmTg4okPghdt+kbe6e1bTXIQp7Ny1NnBn/3Z6ghjk= | ||||||
| gorm.io/gorm v1.22.3 h1:/JS6z+GStEQvJNW3t1FTwJwG/gZ+A7crFdRqtvG5ehA= |  | ||||||
| gorm.io/gorm v1.22.3/go.mod h1:F+OptMscr0P2F2qU97WT1WimdH9GaQPoDW7AYd5i2Y0= | gorm.io/gorm v1.22.3/go.mod h1:F+OptMscr0P2F2qU97WT1WimdH9GaQPoDW7AYd5i2Y0= | ||||||
|  | gorm.io/gorm v1.22.4 h1:8aPcyEJhY0MAt8aY6Dc524Pn+pO29K+ydu+e/cXSpQM= | ||||||
|  | gorm.io/gorm v1.22.4/go.mod h1:1aeVC+pe9ZmvKZban/gW4QPra7PRoTEssyc922qCAkk= | ||||||
| honnef.co/go/tools v0.0.0-20190102054323-c2f93a96b099/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4= | honnef.co/go/tools v0.0.0-20190102054323-c2f93a96b099/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4= | ||||||
| honnef.co/go/tools v0.0.0-20190106161140-3f1c8253044a/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4= | honnef.co/go/tools v0.0.0-20190106161140-3f1c8253044a/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4= | ||||||
| honnef.co/go/tools v0.0.0-20190418001031-e561f6794a2a/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4= | honnef.co/go/tools v0.0.0-20190418001031-e561f6794a2a/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4= | ||||||
|  | |||||||
| @ -20,7 +20,7 @@ import ( | |||||||
| 	"git.zhangdeman.cn/zhangdeman/gopkg/util" | 	"git.zhangdeman.cn/zhangdeman/gopkg/util" | ||||||
| ) | ) | ||||||
|  |  | ||||||
| // NewParseJSONTree 获取解析的实例 | // NewFilter 获取解析的实例 | ||||||
| // | // | ||||||
| // Author : go_developer@163.com<白茶清欢> | // Author : go_developer@163.com<白茶清欢> | ||||||
| // | // | ||||||
| @ -32,7 +32,7 @@ func NewFilter(data interface{}, rule map[string]string) *Filter { | |||||||
| 	} | 	} | ||||||
| } | } | ||||||
|  |  | ||||||
| // ParseJSONTree 解析json树 | // Filter 解析json树 | ||||||
| // | // | ||||||
| // Author : go_developer@163.com<白茶清欢> | // Author : go_developer@163.com<白茶清欢> | ||||||
| // | // | ||||||
|  | |||||||
| @ -8,6 +8,7 @@ | |||||||
| package json_tool | package json_tool | ||||||
|  |  | ||||||
| import ( | import ( | ||||||
|  | 	"encoding/json" | ||||||
| 	"fmt" | 	"fmt" | ||||||
| 	"testing" | 	"testing" | ||||||
| ) | ) | ||||||
| @ -84,3 +85,43 @@ func TestSelect(t *testing.T) { | |||||||
| 	} | 	} | ||||||
| 	fmt.Println(d.String()) | 	fmt.Println(d.String()) | ||||||
| } | } | ||||||
|  |  | ||||||
|  | // TestParse 测试获取JSON数据结构 | ||||||
|  | // | ||||||
|  | // Author : go_developer@163.com<张德满> | ||||||
|  | // | ||||||
|  | // Date : 10:59 PM 2022/1/9 | ||||||
|  | func TestParse(t *testing.T) { | ||||||
|  | 	source := map[string]interface{}{ | ||||||
|  | 		"name": "zhangdeman", | ||||||
|  | 		"extra": map[string]interface{}{ | ||||||
|  | 			"age":    18, | ||||||
|  | 			"height": 180, | ||||||
|  | 			"slice":  []int{1, 2, 3}, | ||||||
|  | 			"obj": map[string]interface{}{ | ||||||
|  | 				"la": "aaaa", | ||||||
|  | 			}, | ||||||
|  | 		}, | ||||||
|  | 		"slice": []int{1, 2, 3}, | ||||||
|  | 		"map":   map[string]interface{}{"a": 1, "b": 2, "c": 4}, | ||||||
|  | 		"table": []map[string]interface{}{ | ||||||
|  | 			{"name": "alex", "age": 18, "number": 1, "obj": map[string]interface{}{"enen": "en"}}, | ||||||
|  | 			{"name": "bob", "age": 28, "number": 2}, | ||||||
|  | 		}, | ||||||
|  | 		"two_slice": []map[string]interface{}{ | ||||||
|  | 			{ | ||||||
|  | 				"students": []map[string]interface{}{ | ||||||
|  | 					{ | ||||||
|  | 						"name":  "enen", | ||||||
|  | 						"age":   18, | ||||||
|  | 						"score": []float64{1, 2, 3, 45}, | ||||||
|  | 					}, | ||||||
|  | 				}, | ||||||
|  | 				"other":     []interface{}{"others"}, | ||||||
|  | 				"read_only": 1, | ||||||
|  | 			}, | ||||||
|  | 		}, | ||||||
|  | 	} | ||||||
|  | 	byteData, _ := json.Marshal(source) | ||||||
|  | 	fmt.Println(GetJSONDataStruct(string(byteData))) | ||||||
|  | } | ||||||
|  | |||||||
							
								
								
									
										57
									
								
								json_tool/parse.go
									
									
									
									
									
										Normal file
									
								
							
							
						
						
									
										57
									
								
								json_tool/parse.go
									
									
									
									
									
										Normal file
									
								
							| @ -0,0 +1,57 @@ | |||||||
|  | // Package json_tool ... | ||||||
|  | // | ||||||
|  | // Description : json_tool ... | ||||||
|  | // | ||||||
|  | // Author : go_developer@163.com<张德满> | ||||||
|  | // | ||||||
|  | // Date : 2022-01-09 10:48 PM | ||||||
|  | package json_tool | ||||||
|  |  | ||||||
|  | import ( | ||||||
|  | 	"github.com/pkg/errors" | ||||||
|  | 	"github.com/tidwall/gjson" | ||||||
|  | ) | ||||||
|  |  | ||||||
|  | // GetJSONDataStruct 获取JSON数据的结构 | ||||||
|  | // | ||||||
|  | // Author : go_developer@163.com<张德满> | ||||||
|  | // | ||||||
|  | // Date : 10:53 PM 2022/1/9 | ||||||
|  | func GetJSONDataStruct(data string) ([]string, error) { | ||||||
|  | 	if !gjson.Valid(data) { | ||||||
|  | 		return make([]string, 0), errors.New("JSON format is invalid") | ||||||
|  | 	} | ||||||
|  | 	pathList := make([]string, 0) | ||||||
|  | 	r := gjson.Parse(data) | ||||||
|  | 	r.ForEach(func(key, value gjson.Result) bool { | ||||||
|  | 		if value.IsObject() { | ||||||
|  | 			list, _ := GetJSONDataStruct(value.String()) | ||||||
|  | 			for _, k := range list { | ||||||
|  | 				pathList = append(pathList, key.String()+"."+k) | ||||||
|  | 			} | ||||||
|  | 		} | ||||||
|  |  | ||||||
|  | 		if value.IsArray() { | ||||||
|  | 			dataList := value.Array() | ||||||
|  | 			if len(dataList) > 0 { | ||||||
|  | 				if !dataList[0].IsObject() && !dataList[0].IsArray() { | ||||||
|  | 					pathList = append(pathList, key.String()) | ||||||
|  | 				} else { | ||||||
|  | 					list, _ := GetJSONDataStruct(dataList[0].String()) | ||||||
|  | 					for _, k := range list { | ||||||
|  | 						pathList = append(pathList, key.String()+".[]."+k) | ||||||
|  | 					} | ||||||
|  | 				} | ||||||
|  | 			} else { | ||||||
|  | 				pathList = append(pathList, key.String()) | ||||||
|  | 			} | ||||||
|  | 		} | ||||||
|  |  | ||||||
|  | 		if !value.IsObject() && !value.IsArray() { | ||||||
|  | 			pathList = append(pathList, key.String()) | ||||||
|  | 		} | ||||||
|  |  | ||||||
|  | 		return true | ||||||
|  | 	}) | ||||||
|  | 	return pathList, nil | ||||||
|  | } | ||||||
| @ -10,8 +10,11 @@ package wrapper | |||||||
| import ( | import ( | ||||||
| 	"context" | 	"context" | ||||||
| 	"fmt" | 	"fmt" | ||||||
|  | 	"strings" | ||||||
| 	"time" | 	"time" | ||||||
|  |  | ||||||
|  | 	"github.com/gin-gonic/gin" | ||||||
|  |  | ||||||
| 	"gorm.io/gorm" | 	"gorm.io/gorm" | ||||||
|  |  | ||||||
| 	"go.uber.org/zap/zapcore" | 	"go.uber.org/zap/zapcore" | ||||||
| @ -47,15 +50,36 @@ func NewGormV2(loggerLevel zapcore.Level, consoleOutput bool, encoder zapcore.En | |||||||
| 	}, nil | 	}, nil | ||||||
| } | } | ||||||
|  |  | ||||||
|  | // NewGormLoggerWithInstance 获取gorm日志实现 | ||||||
|  | // | ||||||
|  | // Author : go_developer@163.com<白茶清欢> | ||||||
|  | // | ||||||
|  | // Date : 3:36 PM 2021/12/24 | ||||||
|  | func NewGormLoggerWithInstance(ctx *gin.Context, dbClient *gorm.DB, instance *zap.Logger, node string, extraCtxFieldList []string) logger.Interface { | ||||||
|  | 	return &Gorm{ | ||||||
|  | 		dbClient:          dbClient, | ||||||
|  | 		instance:          instance, | ||||||
|  | 		traceIDField:      "", | ||||||
|  | 		extraCtxFieldList: extraCtxFieldList, | ||||||
|  | 		flag:              "", | ||||||
|  | 		node:              node, | ||||||
|  | 		ctx:               ctx, | ||||||
|  | 	} | ||||||
|  | } | ||||||
|  |  | ||||||
| // Gorm v2 版本库日志实现 | // Gorm v2 版本库日志实现 | ||||||
| // | // | ||||||
| // Author : go_developer@163.com<白茶清欢> | // Author : go_developer@163.com<白茶清欢> | ||||||
| // | // | ||||||
| // Date : 9:55 下午 2021/3/1 | // Date : 9:55 下午 2021/3/1 | ||||||
| type Gorm struct { | type Gorm struct { | ||||||
| 	instance     *zap.Logger // 日志实例 | 	dbClient          *gorm.DB | ||||||
| 	traceIDField string      // 串联请求上下文的的ID | 	instance          *zap.Logger  // 日志实例 | ||||||
| 	flag         string      // 数据库标识 | 	traceIDField      string       // 串联请求上下文的的ID | ||||||
|  | 	extraCtxFieldList []string     // 从请求上线问提取的字段 | ||||||
|  | 	flag              string       // 数据库标识 | ||||||
|  | 	node              string       // 数据库节点 master / slave | ||||||
|  | 	ctx               *gin.Context // gin上下文 | ||||||
| } | } | ||||||
|  |  | ||||||
| // LogMode ... | // LogMode ... | ||||||
| @ -73,12 +97,7 @@ func (g *Gorm) LogMode(level logger.LogLevel) logger.Interface { | |||||||
| // | // | ||||||
| // Date : 10:18 下午 2021/3/1 | // Date : 10:18 下午 2021/3/1 | ||||||
| func (g *Gorm) Info(ctx context.Context, s string, i ...interface{}) { | func (g *Gorm) Info(ctx context.Context, s string, i ...interface{}) { | ||||||
| 	g.instance.Info( | 	g.write(nil, "info") | ||||||
| 		"Info日志", |  | ||||||
| 		zap.String(g.traceIDField, g.getTraceID(ctx)), |  | ||||||
| 		zap.String("db_flag", g.flag), |  | ||||||
| 		zap.String("message", fmt.Sprintf(s, i...)), |  | ||||||
| 	) |  | ||||||
| } | } | ||||||
|  |  | ||||||
| // Warn ... | // Warn ... | ||||||
| @ -87,12 +106,7 @@ func (g *Gorm) Info(ctx context.Context, s string, i ...interface{}) { | |||||||
| // | // | ||||||
| // Date : 10:16 下午 2021/3/1 | // Date : 10:16 下午 2021/3/1 | ||||||
| func (g *Gorm) Warn(ctx context.Context, s string, i ...interface{}) { | func (g *Gorm) Warn(ctx context.Context, s string, i ...interface{}) { | ||||||
| 	g.instance.Warn( | 	g.write(nil, "warn") | ||||||
| 		"SQL执行产生Warning", |  | ||||||
| 		zap.String(g.traceIDField, g.getTraceID(ctx)), |  | ||||||
| 		zap.String("db_flag", g.flag), |  | ||||||
| 		zap.String("message", fmt.Sprintf(s, i...)), |  | ||||||
| 	) |  | ||||||
| } | } | ||||||
|  |  | ||||||
| // Error 日志 | // Error 日志 | ||||||
| @ -101,12 +115,7 @@ func (g *Gorm) Warn(ctx context.Context, s string, i ...interface{}) { | |||||||
| // | // | ||||||
| // Date : 10:18 下午 2021/3/1 | // Date : 10:18 下午 2021/3/1 | ||||||
| func (g *Gorm) Error(ctx context.Context, s string, i ...interface{}) { | func (g *Gorm) Error(ctx context.Context, s string, i ...interface{}) { | ||||||
| 	g.instance.Warn( | 	g.write(nil, "error") | ||||||
| 		"SQL执行产生Error", |  | ||||||
| 		zap.String(g.traceIDField, g.getTraceID(ctx)), |  | ||||||
| 		zap.String("db_flag", g.flag), |  | ||||||
| 		zap.String("message", fmt.Sprintf(s, i...)), |  | ||||||
| 	) |  | ||||||
| } | } | ||||||
|  |  | ||||||
| // Trace Trace 记录 | // Trace Trace 记录 | ||||||
| @ -123,8 +132,7 @@ func (g *Gorm) Trace(ctx context.Context, begin time.Time, fc func() (string, in | |||||||
| 		sql, affectRows = fc() | 		sql, affectRows = fc() | ||||||
| 	} | 	} | ||||||
|  |  | ||||||
| 	g.instance.Info( | 	dataList := []zap.Field{ | ||||||
| 		"SQL执行记录", |  | ||||||
| 		zap.String(g.traceIDField, g.getTraceID(ctx)), | 		zap.String(g.traceIDField, g.getTraceID(ctx)), | ||||||
| 		zap.String("db_flag", g.flag), | 		zap.String("db_flag", g.flag), | ||||||
| 		zap.Int64("begin_time", start), | 		zap.Int64("begin_time", start), | ||||||
| @ -133,7 +141,45 @@ func (g *Gorm) Trace(ctx context.Context, begin time.Time, fc func() (string, in | |||||||
| 		zap.String("sql", sql), | 		zap.String("sql", sql), | ||||||
| 		zap.Int64("affect_rows", affectRows), | 		zap.Int64("affect_rows", affectRows), | ||||||
| 		zap.Error(err), | 		zap.Error(err), | ||||||
| 	) | 	} | ||||||
|  | 	g.write(dataList, "info") | ||||||
|  |  | ||||||
|  | } | ||||||
|  |  | ||||||
|  | // write ... | ||||||
|  | // | ||||||
|  | // Author : go_developer@163.com<白茶清欢> | ||||||
|  | // | ||||||
|  | // Date : 4:11 PM 2021/12/24 | ||||||
|  | func (g *Gorm) write(dataList []zap.Field, level string) { | ||||||
|  | 	if nil == g.instance { | ||||||
|  | 		// 未设置日志实例 | ||||||
|  | 		return | ||||||
|  | 	} | ||||||
|  | 	if nil == dataList { | ||||||
|  | 		dataList = make([]zap.Field, 0) | ||||||
|  | 	} | ||||||
|  | 	if nil != g.ctx { | ||||||
|  | 		for _, extraField := range g.extraCtxFieldList { | ||||||
|  | 			dataList = append(dataList, zap.Any(extraField, g.ctx.Value(extraField))) | ||||||
|  | 		} | ||||||
|  | 	} | ||||||
|  |  | ||||||
|  | 	// 补齐 flag、node | ||||||
|  | 	sql := g.dbClient.Dialector.Explain(g.dbClient.Statement.SQL.String(), g.dbClient.Statement.Vars...) | ||||||
|  | 	affectRows := g.dbClient.RowsAffected | ||||||
|  | 	dataList = append(dataList, zap.String("db_node", g.node), zap.String("db_flag", g.flag), zap.String("execute_sql", sql), zap.Int64("affext_rows", affectRows)) | ||||||
|  | 	message := "SQL执行记录" | ||||||
|  | 	switch strings.ToLower(level) { | ||||||
|  | 	case "info": | ||||||
|  | 		g.instance.Info(message, dataList...) | ||||||
|  | 	case "warn": | ||||||
|  | 		g.instance.Warn(message, dataList...) | ||||||
|  | 	case "error": | ||||||
|  | 		g.instance.Error(message, dataList...) | ||||||
|  | 	default: | ||||||
|  | 		g.instance.Info(message, dataList...) | ||||||
|  | 	} | ||||||
| } | } | ||||||
|  |  | ||||||
| // getTraceID 获取traceID | // getTraceID 获取traceID | ||||||
| @ -145,7 +191,7 @@ func (g *Gorm) getTraceID(ctx context.Context) string { | |||||||
| 	return fmt.Sprintf("%v", ctx.Value(g.traceIDField)) | 	return fmt.Sprintf("%v", ctx.Value(g.traceIDField)) | ||||||
| } | } | ||||||
|  |  | ||||||
| // GetGormSQL 获取tracefn | // GetGormSQL 获取trace fn | ||||||
| // | // | ||||||
| // Author : go_developer@163.com<白茶清欢> | // Author : go_developer@163.com<白茶清欢> | ||||||
| // | // | ||||||
|  | |||||||
| @ -10,14 +10,107 @@ package mysql | |||||||
| import ( | import ( | ||||||
| 	"fmt" | 	"fmt" | ||||||
|  |  | ||||||
| 	"git.zhangdeman.cn/zhangdeman/gopkg/logger" |  | ||||||
|  |  | ||||||
| 	"git.zhangdeman.cn/zhangdeman/gopkg/logger/wrapper" | 	"git.zhangdeman.cn/zhangdeman/gopkg/logger/wrapper" | ||||||
|  | 	"github.com/gin-gonic/gin" | ||||||
|  |  | ||||||
|  | 	"go.uber.org/zap" | ||||||
|  |  | ||||||
|  | 	"git.zhangdeman.cn/zhangdeman/gopkg/logger" | ||||||
|  | 	gormLogger "gorm.io/gorm/logger" | ||||||
|  |  | ||||||
| 	"gorm.io/driver/mysql" | 	"gorm.io/driver/mysql" | ||||||
| 	"gorm.io/gorm" | 	"gorm.io/gorm" | ||||||
| ) | ) | ||||||
|  |  | ||||||
|  | // NewDBClient ... | ||||||
|  | // | ||||||
|  | // Author : go_developer@163.com<白茶清欢> | ||||||
|  | // | ||||||
|  | // Date : 3:09 PM 2021/12/24 | ||||||
|  | func NewDBClient(masterConf *DBConfig, slaveConf *DBConfig, logConf *LogConfig, loggerInstance *zap.Logger, extraRequestFieldList []string) (*DBClient, error) { | ||||||
|  | 	client := &DBClient{ | ||||||
|  | 		extraFieldList: extraRequestFieldList, | ||||||
|  | 	} | ||||||
|  | 	var err error | ||||||
|  | 	// 日志初始化失败 | ||||||
|  | 	if client.loggerInstance, err = getLogInstance(logConf, loggerInstance); nil != err { | ||||||
|  | 		return nil, err | ||||||
|  | 	} | ||||||
|  | 	if client.master, err = GetDatabaseClient(masterConf, nil); nil != err { | ||||||
|  | 		return nil, err | ||||||
|  | 	} | ||||||
|  | 	if client.slave, err = GetDatabaseClient(slaveConf, nil); nil != err { | ||||||
|  | 		return nil, err | ||||||
|  | 	} | ||||||
|  | 	return client, nil | ||||||
|  | } | ||||||
|  |  | ||||||
|  | // DBClient 包装日志实例 | ||||||
|  | // | ||||||
|  | // Author : go_developer@163.com<白茶清欢> | ||||||
|  | // | ||||||
|  | // Date : 3:09 PM 2021/12/24 | ||||||
|  | type DBClient struct { | ||||||
|  | 	loggerInstance *zap.Logger | ||||||
|  | 	master         *gorm.DB | ||||||
|  | 	slave          *gorm.DB | ||||||
|  | 	extraFieldList []string | ||||||
|  | } | ||||||
|  |  | ||||||
|  | // GetMaster 获取主库连接 | ||||||
|  | // | ||||||
|  | // Author : go_developer@163.com<白茶清欢> | ||||||
|  | // | ||||||
|  | // Date : 3:28 PM 2021/12/24 | ||||||
|  | func (dc *DBClient) GetMaster(ctx *gin.Context) *gorm.DB { | ||||||
|  | 	session := dc.master.Session(&gorm.Session{}) | ||||||
|  | 	session.Logger = dc.getLogger(ctx, session, "slave") | ||||||
|  | 	return session | ||||||
|  | } | ||||||
|  |  | ||||||
|  | // GetSlave 获取从库链接 | ||||||
|  | // | ||||||
|  | // Author : go_developer@163.com<白茶清欢> | ||||||
|  | // | ||||||
|  | // Date : 3:29 PM 2021/12/24 | ||||||
|  | func (dc *DBClient) GetSlave(ctx *gin.Context) *gorm.DB { | ||||||
|  | 	session := dc.slave.Session(&gorm.Session{}) | ||||||
|  | 	session.Logger = dc.getLogger(ctx, session, "slave") | ||||||
|  | 	return session | ||||||
|  | } | ||||||
|  |  | ||||||
|  | // getLogger 获取日志实例 | ||||||
|  | // | ||||||
|  | // Author : go_developer@163.com<白茶清欢> | ||||||
|  | // | ||||||
|  | // Date : 3:45 PM 2021/12/24 | ||||||
|  | func (dc *DBClient) getLogger(ctx *gin.Context, dbClient *gorm.DB, node string) gormLogger.Interface { | ||||||
|  | 	return wrapper.NewGormLoggerWithInstance(ctx, dbClient, dc.loggerInstance, node, dc.extraFieldList) | ||||||
|  | } | ||||||
|  |  | ||||||
|  | // getLogInstance 获取日志实例 | ||||||
|  | // | ||||||
|  | // Author : go_developer@163.com<白茶清欢> | ||||||
|  | // | ||||||
|  | // Date : 3:20 PM 2021/12/24 | ||||||
|  | func getLogInstance(logConf *LogConfig, loggerInstance *zap.Logger) (*zap.Logger, error) { | ||||||
|  | 	if nil != loggerInstance { | ||||||
|  | 		return loggerInstance, nil | ||||||
|  | 	} | ||||||
|  | 	logConfList := []logger.SetLoggerOptionFunc{logger.WithEncoder(logConf.Encoder), logger.WithCallerSkip(logConf.Skip), logger.WithCaller()} | ||||||
|  | 	if logConf.ConsoleOutput { | ||||||
|  | 		logConfList = append(logConfList, logger.WithConsoleOutput()) | ||||||
|  | 	} | ||||||
|  |  | ||||||
|  | 	var ( | ||||||
|  | 		err error | ||||||
|  | 	) | ||||||
|  | 	if loggerInstance, err = logger.NewLogger(logConf.Level, logConf.SplitConfig, logConfList...); nil != err { | ||||||
|  | 		return nil, err | ||||||
|  | 	} | ||||||
|  | 	return loggerInstance, nil | ||||||
|  | } | ||||||
|  |  | ||||||
| // GetDatabaseClient 获取日志实例 | // GetDatabaseClient 获取日志实例 | ||||||
| // | // | ||||||
| // Author : go_developer@163.com<白茶清欢> | // Author : go_developer@163.com<白茶清欢> | ||||||
| @ -25,35 +118,22 @@ import ( | |||||||
| // Date : 10:49 下午 2021/3/1 | // Date : 10:49 下午 2021/3/1 | ||||||
| func GetDatabaseClient(conf *DBConfig, logConf *LogConfig) (*gorm.DB, error) { | func GetDatabaseClient(conf *DBConfig, logConf *LogConfig) (*gorm.DB, error) { | ||||||
| 	var ( | 	var ( | ||||||
| 		instance *gorm.DB | 		instance       *gorm.DB | ||||||
| 		err      error | 		err            error | ||||||
|  | 		loggerInstance *zap.Logger | ||||||
| 	) | 	) | ||||||
|  |  | ||||||
| 	if instance, err = gorm.Open(mysql.Open(buildConnectionDSN(conf)), &gorm.Config{}); nil != err { | 	if instance, err = gorm.Open(mysql.Open(buildConnectionDSN(conf)), &gorm.Config{}); nil != err { | ||||||
| 		return nil, err | 		return nil, err | ||||||
| 	} | 	} | ||||||
|  |  | ||||||
| 	if len(logConf.TraceFieldName) == 0 { | 	if nil != logConf { | ||||||
| 		logConf.TraceFieldName = defaultTraceFieldName | 		if loggerInstance, err = getLogInstance(logConf, nil); nil != err { | ||||||
|  | 			return nil, err | ||||||
|  | 		} | ||||||
|  | 		instance.Logger = wrapper.NewGormLoggerWithInstance(nil, instance, loggerInstance, "", nil) | ||||||
| 	} | 	} | ||||||
|  |  | ||||||
| 	splitConfigFuncList := []logger.SetRotateLogConfigFunc{ |  | ||||||
| 		logger.WithTimeIntervalType(logConf.SplitConfig.TimeIntervalType), |  | ||||||
| 		logger.WithDivisionChar(logConf.SplitConfig.DivisionChar), |  | ||||||
| 		logger.WithMaxAge(logConf.SplitConfig.MaxAge), |  | ||||||
| 	} |  | ||||||
|  |  | ||||||
| 	splitConfig, _ := logger.NewRotateLogConfig(logConf.SplitConfig.LogPath, logConf.SplitConfig.LogFileName, splitConfigFuncList...) |  | ||||||
|  |  | ||||||
| 	if instance.Logger, err = wrapper.NewGormV2( |  | ||||||
| 		logConf.Level, |  | ||||||
| 		logConf.ConsoleOutput, |  | ||||||
| 		logConf.Encoder, |  | ||||||
| 		splitConfig, |  | ||||||
| 		logConf.TraceFieldName, |  | ||||||
| 		logConf.Skip); nil != err { |  | ||||||
| 		return nil, CreateDBLogError(err) |  | ||||||
| 	} |  | ||||||
| 	return instance, nil | 	return instance, nil | ||||||
| } | } | ||||||
|  |  | ||||||
|  | |||||||
| @ -42,8 +42,3 @@ type LogConfig struct { | |||||||
| 	TraceFieldName   string | 	TraceFieldName   string | ||||||
| 	Skip             int | 	Skip             int | ||||||
| } | } | ||||||
|  |  | ||||||
| const ( |  | ||||||
| 	// defaultTraceFieldName 默认trace_id字段 |  | ||||||
| 	defaultTraceFieldName = "trace_id" |  | ||||||
| ) |  | ||||||
|  | |||||||
| @ -8,13 +8,11 @@ | |||||||
| package proxy | package proxy | ||||||
|  |  | ||||||
| import ( | import ( | ||||||
| 	"bytes" |  | ||||||
| 	"compress/gzip" | 	"compress/gzip" | ||||||
| 	"fmt" |  | ||||||
| 	"io" | 	"io" | ||||||
| 	"io/ioutil" | 	"io/ioutil" | ||||||
| 	"net" |  | ||||||
| 	"net/http" | 	"net/http" | ||||||
|  | 	"net/http/httputil" | ||||||
| 	"strings" | 	"strings" | ||||||
| ) | ) | ||||||
|  |  | ||||||
| @ -24,72 +22,30 @@ import ( | |||||||
| // | // | ||||||
| // Date : 2:08 下午 2021/8/6 | // Date : 2:08 下午 2021/8/6 | ||||||
| func Forward(rw http.ResponseWriter, req *http.Request, serverConfig *Server) { | func Forward(rw http.ResponseWriter, req *http.Request, serverConfig *Server) { | ||||||
| 	fmt.Printf("Received request %s %s %s\n", req.Method, req.Host, req.RemoteAddr) |  | ||||||
|  |  | ||||||
| 	transport := http.DefaultTransport | 	if !strings.HasPrefix(serverConfig.URI, "/") { | ||||||
|  | 		serverConfig.URI = "/" + serverConfig.URI | ||||||
| 	// step 1 |  | ||||||
| 	outReq := new(http.Request) |  | ||||||
| 	*outReq = *req // this only does shallow copies of maps |  | ||||||
|  |  | ||||||
| 	if clientIP, _, err := net.SplitHostPort(req.RemoteAddr); err == nil { |  | ||||||
| 		if prior, ok := outReq.Header["X-Forwarded-For"]; ok { |  | ||||||
| 			clientIP = strings.Join(prior, ", ") + ", " + clientIP |  | ||||||
| 		} |  | ||||||
| 		outReq.Header.Set("X-Forwarded-For", clientIP) |  | ||||||
| 	} | 	} | ||||||
|  | 	// 请求重写方法 | ||||||
| 	// 写入重写的请求Header | 	director := func(req *http.Request) { | ||||||
| 	for k, v := range serverConfig.RewriteRequestHeader { | 		req.URL.Scheme = serverConfig.Scheme | ||||||
| 		outReq.Header.Set(k, v) | 		// req.URL.Host = projectDetail.GetProjectDetail().Domain + ":" + fmt.Sprintf("%v", projectDetail.GetProjectDetail().Port) | ||||||
| 	} | 		// req.Host = projectDetail.GetProjectDetail().Domain + ":" + fmt.Sprintf("%v", projectDetail.GetProjectDetail().Port) | ||||||
|  | 		req.Host = serverConfig.Host | ||||||
| 	// 重写请求地址 | 		req.URL.Host = serverConfig.Host | ||||||
| 	outReq.Host = serverConfig.Host | 		req.URL.Path = serverConfig.URI | ||||||
| 	outReq.URL.Path = serverConfig.URI | 		req.RequestURI = serverConfig.URI | ||||||
| 	outReq.URL.Scheme = serverConfig.Scheme | 		// 写入重写的请求Header | ||||||
| 	outReq.URL.Host = serverConfig.Host | 		for k, v := range serverConfig.RewriteRequestHeader { | ||||||
|  | 			req.Header.Set(k, v) | ||||||
| 	// step 2 |  | ||||||
| 	res, err := transport.RoundTrip(outReq) |  | ||||||
| 	if err != nil { |  | ||||||
| 		rw.WriteHeader(http.StatusBadGateway) |  | ||||||
| 		return |  | ||||||
| 	} |  | ||||||
|  |  | ||||||
| 	// step 3 |  | ||||||
| 	for key, value := range res.Header { |  | ||||||
| 		for _, v := range value { |  | ||||||
| 			if strings.ToLower(key) == "content-encoding" { |  | ||||||
| 				continue |  | ||||||
| 			} |  | ||||||
| 			rw.Header().Add(key, v) |  | ||||||
| 		} | 		} | ||||||
| 	} | 	} | ||||||
|  | 	// TODO : 重写响应数据 | ||||||
| 	rw.WriteHeader(res.StatusCode) | 	modifyResponseFunc := func(rep *http.Response) error { | ||||||
|  | 		return nil | ||||||
| 	// 重写请求header |  | ||||||
| 	for k, v := range serverConfig.RewriteResponseHeader { |  | ||||||
| 		rw.Header().Set(k, v) |  | ||||||
| 	} | 	} | ||||||
|  | 	p := &httputil.ReverseProxy{Director: director, ModifyResponse: modifyResponseFunc} | ||||||
| 	defer res.Body.Close() | 	p.ServeHTTP(rw, req) | ||||||
|  |  | ||||||
| 	// 重写响应数据 |  | ||||||
| 	if !strings.Contains(strings.ToLower(res.Header.Get("Content-Type")), "application/json") || nil == serverConfig.RewriteResponseData || len(serverConfig.RewriteResponseData) == 0 { |  | ||||||
| 		_, _ = io.Copy(rw, res.Body) |  | ||||||
| 		return |  | ||||||
| 	} |  | ||||||
| 	var ( |  | ||||||
| 		responseData []byte |  | ||||||
| 	) |  | ||||||
|  |  | ||||||
| 	responseData, err = getResponseData(res) |  | ||||||
| 	fmt.Println(string(responseData), err) |  | ||||||
|  |  | ||||||
| 	bytesBuffer := bytes.NewReader([]byte(`{"data":{"permission":true}}`)) |  | ||||||
| 	_, _ = io.Copy(rw, bytesBuffer) |  | ||||||
| } | } | ||||||
|  |  | ||||||
| // getResultCompressType 获取返回结果的压缩方式 | // getResultCompressType 获取返回结果的压缩方式 | ||||||
|  | |||||||
		Reference in New Issue
	
	Block a user