diff --git a/src/dao/user_dao.go b/src/dao/user_dao.go
index 865f277..961ea35 100644
--- a/src/dao/user_dao.go
+++ b/src/dao/user_dao.go
@@ -10,12 +10,12 @@ import (
 type UserDAO struct{}
 
 // 新增
-func (UserDAO) Insert(resource *entity.User) {
+func (dao UserDAO) Insert(resource *entity.User) {
 	config.SqlExcutor.Create(resource)
 }
 
 // ID查询
-func (UserDAO) SelectOne(id uint) entity.User {
+func (dao UserDAO) SelectOne(id uint) entity.User {
 	var user entity.User
 	config.SqlExcutor.First(&user, id)
 	return user
diff --git a/src/rest/api/user_rest.go b/src/rest/api/user_rest.go
index a1dfbfe..e7b7ce6 100644
--- a/src/rest/api/user_rest.go
+++ b/src/rest/api/user_rest.go
@@ -9,11 +9,14 @@ import (
 	"net/http"
 )
 
+// 统一Service对象
+var userService = &service.UserService{}
+
 func DescribeUsers(c *gin.Context) {
 	var userQuery query.UserQuery
 	_ = c.BindJSON(&userQuery)
 
-	users, total := new(service.UserService).DescribeUsers(userQuery)
+	users, total := userService.DescribeUsers(userQuery)
 	c.JSON(http.StatusOK, gin.H{
 		"code":  http.StatusOK,
 		"data":  users,
@@ -23,7 +26,7 @@ func DescribeUsers(c *gin.Context) {
 
 func DescribeUserById(c *gin.Context) {
 	id := c.Params.ByName("id")
-	user := new(service.UserService).DescribeUserById(util.StringToUInt(id))
+	user := userService.DescribeUserById(util.StringToUInt(id))
 	if user.ID == 0 {
 		c.JSON(http.StatusNotFound, gin.H{
 			"code":    http.StatusNotFound,
@@ -42,7 +45,7 @@ func CreateUser(c *gin.Context) {
 	var userDTO dto.UserDTO
 	// 绑定一个请求主体到一个类型
 	_ = c.BindJSON(&userDTO)
-	new(service.UserService).Save(&userDTO)
+	userService.Save(&userDTO)
 	c.JSON(http.StatusOK, gin.H{
 		"code":    http.StatusOK,
 		"message": "success",
@@ -51,7 +54,7 @@ func CreateUser(c *gin.Context) {
 
 func ModifyUserById(c *gin.Context) {
 	id := c.Params.ByName("id")
-	localUser := new(service.UserService).DescribeUserById(util.StringToUInt(id))
+	localUser := userService.DescribeUserById(util.StringToUInt(id))
 	if localUser.ID == 0 {
 		c.JSON(http.StatusNotFound, gin.H{
 			"code":    http.StatusNotFound,
@@ -61,7 +64,7 @@ func ModifyUserById(c *gin.Context) {
 	} else {
 		var userDTO dto.UserDTO
 		_ = c.BindJSON(&userDTO)
-		new(service.UserService).ModifyById(&userDTO)
+		userService.ModifyById(&userDTO)
 		c.JSON(http.StatusOK, gin.H{
 			"code":    http.StatusOK,
 			"message": "success",
@@ -72,7 +75,7 @@ func ModifyUserById(c *gin.Context) {
 func DeleteUserById(c *gin.Context) {
 	id := c.Params.ByName("id")
 	uid := util.StringToUInt(id)
-	localUser := new(service.UserService).DescribeUserById(uid)
+	localUser := userService.DescribeUserById(uid)
 	if localUser.ID == 0 {
 		c.JSON(http.StatusNotFound, gin.H{
 			"code":    http.StatusNotFound,
@@ -80,7 +83,7 @@ func DeleteUserById(c *gin.Context) {
 		})
 		return
 	} else {
-		new(service.UserService).RemoveById(uid)
+		userService.RemoveById(uid)
 		c.JSON(http.StatusOK, gin.H{
 			"code":    http.StatusOK,
 			"message": "success",
diff --git a/src/service/user_service.go b/src/service/user_service.go
index b60af9e..cf21fe2 100644
--- a/src/service/user_service.go
+++ b/src/service/user_service.go
@@ -8,37 +8,39 @@ import (
 	"lingye-gin/src/util"
 )
 
-type UserService struct{}
+type UserService struct {
+	userDao dao.UserDAO
+}
 
-func (UserService) Save(resource *dto.UserDTO) {
+func (service UserService) Save(resource *dto.UserDTO) {
 	if resource.ID != 0 {
 		panic("id is not zero")
 	}
 	record := &entity.User{}
 	util.StructCopy(resource, record)
-	new(dao.UserDAO).Insert(record)
+	service.userDao.Insert(record)
 }
 
-func (UserService) RemoveById(id uint) {
+func (service UserService) RemoveById(id uint) {
 	if id == 0 {
 		panic("id is zero")
 	}
-	new(dao.UserDAO).DeleteById(id)
+	service.userDao.DeleteById(id)
 }
 
-func (UserService) ModifyById(resource *dto.UserDTO) {
+func (service UserService) ModifyById(resource *dto.UserDTO) {
 	if resource.ID == 0 {
 		panic("id is zero")
 	}
 	record := &entity.User{}
 	util.StructCopy(resource, record)
-	new(dao.UserDAO).UpdateById(record)
+	service.userDao.UpdateById(record)
 }
 
-func (UserService) DescribeUsers(condition query.UserQuery) ([]entity.User, int) {
-	return new(dao.UserDAO).SelectPage(condition)
+func (service UserService) DescribeUsers(condition query.UserQuery) ([]entity.User, int) {
+	return service.userDao.SelectPage(condition)
 }
 
-func (UserService) DescribeUserById(id uint) entity.User {
-	return new(dao.UserDAO).SelectOne(id)
+func (service UserService) DescribeUserById(id uint) entity.User {
+	return service.userDao.SelectOne(id)
 }