定义请求与相应的字段，以及暴露必要的覆盖配置方法

.gitignore

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+# Created by .ignore support plugin (hsz.mobi)
+### Go template
+# Binaries for programs and plugins
+*.exe
+*.exe~
+*.dll
+*.so
+*.dylib
+*.xlsx
+
+# Test binary, built with `go test -c`
+*.test
+
+# Output of the go coverage tool, specifically when used with LiteIDE
+*.out
+
+# Dependency directories (remove the comment below to include it)
+# vendor/
+.idea
+.vscode
+mail_test.go

define/response.go

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+// Package define ...
+//
+// Description : define ...
+//
+// Author : go_developer@163.com<白茶清欢>
+//
+// Date : 2022-06-25 20:33
+package define
+
+var (
+	// RequestIDField 请求ID
+	RequestIDField = "request_id"
+	// TraceIDField 追踪ID
+	TraceIDField = "trace_id"
+	// ResponseCodeField 响应状态码字段
+	ResponseCodeField = "code"
+	// ResponseMessageField 响应信息字段
+	ResponseMessageField = "message"
+	// HandleRequestCostField 处理请求耗时
+	HandleRequestCostField = "cost"
+	// ResponseDataField 响应数据字段
+	ResponseDataField = "data"
+	// ResponseTraceIDField 响应TraceID字段
+	ResponseTraceIDField = "trace_id"
+	// ResponseRequestIDField 响应的请求ID字段
+	ResponseRequestIDField = "request_id"
+)
+
+// HttpHandleConfig 请求处理配置
+//
+// Author : go_developer@163.com<白茶清欢>
+//
+// Date : 20:41 2022/6/25
+type HttpHandleConfig struct {
+	RequestIDField         string
+	TraceIDField           string
+	ResponseCodeField      string
+	ResponseMessageField   string
+	HandleRequestCostField string
+	ResponseDataField      string
+	ResponseTraceIDField   string
+	ResponseRequestIDField string
+}
+
+// ConvertDefaultConfig 覆盖默认配置
+//
+// Author : go_developer@163.com<白茶清欢>
+//
+// Date : 20:41 2022/6/25
+func ConvertDefaultConfig(cfg *HttpHandleConfig) {
+	if len(cfg.RequestIDField) > 0 {
+		RequestIDField = cfg.ResponseRequestIDField
+	}
+
+	if len(cfg.TraceIDField) > 0 {
+		TraceIDField = cfg.TraceIDField
+	}
+
+	if len(cfg.ResponseCodeField) > 0 {
+		ResponseCodeField = cfg.ResponseCodeField
+	}
+
+	if len(cfg.ResponseMessageField) > 0 {
+		ResponseMessageField = cfg.ResponseMessageField
+	}
+
+	if len(cfg.ResponseDataField) > 0 {
+		ResponseDataField = cfg.ResponseDataField
+	}
+
+	if len(cfg.ResponseRequestIDField) > 0 {
+		ResponseRequestIDField = cfg.ResponseRequestIDField
+	}
+
+	if len(cfg.ResponseTraceIDField) > 0 {
+		ResponseTraceIDField = cfg.ResponseTraceIDField
+	}
+
+	if len(cfg.HandleRequestCostField) > 0 {
+		HandleRequestCostField = cfg.HandleRequestCostField
+	}
+}

go.mod

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+module git.zhangdeman.cn/zhangdeman/gin
+
+go 1.18