diff --git a/balance_test.go b/balance_test.go
index 11bfd69..1a5d6f7 100644
--- a/balance_test.go
+++ b/balance_test.go
@@ -13,7 +13,7 @@ import (
 
 	"github.com/go-playground/assert/v2"
 
-	"git.zhangdeman.cn/gateway/balance/dispatch"
+	"git.zhangdeman.cn/gateway/balance/implement"
 
 	"git.zhangdeman.cn/gateway/balance/define"
 )
@@ -33,7 +33,7 @@ var list = []*define.SeverNode{
 func TestRand(t *testing.T) {
 	result := make(map[string]int)
 
-	s := NewServer(list, dispatch.NewRand())
+	s := NewServer(list, implement.NewRand())
 	for i := 0; i < 10000; i++ {
 		node, _ := s.Get()
 		if _, exist := result[node]; !exist {
@@ -52,7 +52,7 @@ func TestRand(t *testing.T) {
 func TestRoundRobin(t *testing.T) {
 	result := make(map[string]int)
 
-	s := NewServer(list, dispatch.NewRoundRobin())
+	s := NewServer(list, implement.NewRoundRobin())
 	for i := 0; i < 10000; i++ {
 		node, _ := s.Get()
 		if _, exist := result[node]; !exist {
diff --git a/dispatch/rand.go b/implement/rand.go
similarity index 68%
rename from dispatch/rand.go
rename to implement/rand.go
index ee79e48..bdb4944 100644
--- a/dispatch/rand.go
+++ b/implement/rand.go
@@ -5,10 +5,12 @@
 // Author : go_developer@163.com<张德满>
 //
 // Date : 2021-04-01 5:58 下午
-package dispatch
+package implement
 
 import (
 	"fmt"
+	"git.zhangdeman.cn/gateway/balance/abstract"
+	"git.zhangdeman.cn/zhangdeman/exception"
 	"math/rand"
 
 	"git.zhangdeman.cn/gateway/balance/define"
@@ -19,7 +21,7 @@ import (
 // Author : go_developer@163.com<张德满>
 //
 // Date : 6:51 下午 2021/4/1
-func NewRand() IDispatch {
+func NewRand() abstract.IBalance {
 	return &Rand{}
 }
 
@@ -36,9 +38,9 @@ type Rand struct {
 // Author : go_developer@163.com<张德满>
 //
 // Date : 6:01 下午 2021/4/1
-func (r Rand) Get(nodeList []*define.SeverNode) (string, *define.Error) {
+func (r Rand) Get(nodeList []*define.SeverNode) (string, exception.IException) {
 	if len(nodeList) == 0 {
-		return "", define.NewError(define.ErrorTypeNodeListEmpty, "服务器可用节点为空")
+		return "", exception.New(define.ErrorTypeNodeListEmpty, nil, "服务器可用节点为空")
 	}
 	node := nodeList[rand.Intn(len(nodeList))]
 	return fmt.Sprintf("%s:%d", node.Host, node.Port), nil
diff --git a/dispatch/round_robin.go b/implement/round_robin.go
similarity index 82%
rename from dispatch/round_robin.go
rename to implement/round_robin.go
index fe0117f..e4c3735 100644
--- a/dispatch/round_robin.go
+++ b/implement/round_robin.go
@@ -5,10 +5,12 @@
 // Author : go_developer@163.com<张德满>
 //
 // Date : 2021-04-01 8:04 下午
-package dispatch
+package implement
 
 import (
 	"fmt"
+	"git.zhangdeman.cn/gateway/balance/abstract"
+	"git.zhangdeman.cn/zhangdeman/exception"
 
 	"git.zhangdeman.cn/gateway/balance/define"
 	"git.zhangdeman.cn/zhangdeman/easylock"
@@ -19,7 +21,7 @@ import (
 // Author : go_developer@163.com<张德满>
 //
 // Date : 8:07 下午 2021/4/1
-func NewRoundRobin() IDispatch {
+func NewRoundRobin() abstract.IBalance {
 	return &RoundRobin{
 		lock:          easylock.NewLock(),
 		nextNodeIndex: 0,
@@ -41,9 +43,9 @@ type RoundRobin struct {
 // Author : go_developer@163.com<张德满>
 //
 // Date : 8:05 下午 2021/4/1
-func (r *RoundRobin) Get(nodeList []*define.SeverNode) (string, *define.Error) {
+func (r *RoundRobin) Get(nodeList []*define.SeverNode) (string, exception.IException) {
 	if len(nodeList) == 0 {
-		return "", define.NewError(define.ErrorTypeNodeListEmpty, "服务器可用节点为空")
+		return "", exception.New(define.ErrorTypeNodeListEmpty, nil, "服务器可用节点为空")
 	}
 	_ = r.lock.Lock()
 	defer func() {