[Code-Updates]:添加修改删除更新后返回UserInfo信息

SpringBoot_HLS/src/main/java/org/hand/train/springboot/springboot/controller/UserController.java

@@ -55,8 +55,9 @@ public class UserController {
      * @date 18:40 2019/12/3
      */
     @PostMapping("/add")
-    int addUser(@RequestBody UserInfo userInfo) {
-        return userService.addUser(userInfo);
+    UserInfo addUser(@RequestBody UserInfo userInfo) {
+        userService.addUser(userInfo);
+        return userInfo;
     }
 
     /**
@@ -68,7 +69,7 @@ public class UserController {
      * @date 18:41 2019/12/3
      */
     @PutMapping("/update")
-    int updateUser(@RequestBody UserInfo userInfo) {
+    UserInfo updateUser(@RequestBody UserInfo userInfo) {
         return userService.updateUser(userInfo);
     }
 
@@ -81,7 +82,7 @@ public class UserController {
      * @date 18:41 2019/12/3
      */
     @DeleteMapping("/del")
-    int delUser(@RequestBody UserInfo userInfo) {
+    UserInfo delUser(@RequestBody UserInfo userInfo) {
         return userService.delUser(userInfo);
     }
 }

SpringBoot_HLS/src/main/java/org/hand/train/springboot/springboot/mapper/UserMapper.java

 package org.hand.train.springboot.springboot.mapper;
 
 import org.hand.train.springboot.springboot.bean.UserInfo;
+import org.springframework.transaction.annotation.Transactional;
 
 import java.util.List;
 
@@ -41,6 +42,7 @@ public interface UserMapper {
      * @author Fcant
      * @date 18:40 2019/12/3
      */
+    @Transactional(rollbackFor = Exception.class)
     int addUser(UserInfo userInfo);
 
     /**
@@ -51,6 +53,7 @@ public interface UserMapper {
      * @author Fcant
      * @date 18:41 2019/12/3
      */
+    @Transactional(rollbackFor = Exception.class)
     int updateUser(UserInfo userInfo);
 
     /**
@@ -61,5 +64,6 @@ public interface UserMapper {
      * @author Fcant
      * @date 18:41 2019/12/3
      */
+    @Transactional(rollbackFor = Exception.class)
     int delUser(UserInfo userInfo);
 }

SpringBoot_HLS/src/main/java/org/hand/train/springboot/springboot/service/UserService.java

@@ -41,7 +41,7 @@ public interface UserService {
      * @author Fcant
      * @date 18:40 2019/12/3
      */
-    int addUser(UserInfo userInfo);
+    UserInfo addUser(UserInfo userInfo);
 
     /**
      * 更新用户信息
@@ -51,7 +51,7 @@ public interface UserService {
      * @author Fcant
      * @date 18:41 2019/12/3
      */
-    int updateUser(UserInfo userInfo);
+    UserInfo updateUser(UserInfo userInfo);
 
     /**
      * 删除用户
@@ -61,5 +61,5 @@ public interface UserService {
      * @author Fcant
      * @date 18:41 2019/12/3
      */
-    int delUser(UserInfo userInfo);
+    UserInfo delUser(UserInfo userInfo);
 }

SpringBoot_HLS/src/main/java/org/hand/train/springboot/springboot/service/impl/UserServiceImpl.java

@@ -19,6 +19,11 @@ import java.util.List;
 @Service
 public class UserServiceImpl implements UserService {
 
+    /**
+     * 数据库操作失败的数字返回值
+     */
+    private final int FAILURE_CODE = 0;
+
     @Autowired
     UserMapper userMapper;
 
@@ -56,8 +61,12 @@ public class UserServiceImpl implements UserService {
      * @date 18:40 2019/12/3
      */
     @Override
-    public int addUser(UserInfo userInfo) {
-        return userMapper.addUser(userInfo);
+    public UserInfo addUser(UserInfo userInfo) {
+        int i = userMapper.addUser(userInfo);
+        if (i == FAILURE_CODE) {
+            return null;
+        }
+        return userInfo;
     }
 
     /**
@@ -69,8 +78,12 @@ public class UserServiceImpl implements UserService {
      * @date 18:41 2019/12/3
      */
     @Override
-    public int updateUser(UserInfo userInfo) {
-        return userMapper.updateUser(userInfo);
+    public UserInfo updateUser(UserInfo userInfo) {
+        int i = userMapper.updateUser(userInfo);
+        if (i == FAILURE_CODE) {
+            return null;
+        }
+        return userInfo;
     }
 
     /**
@@ -82,7 +95,12 @@ public class UserServiceImpl implements UserService {
      * @date 18:41 2019/12/3
      */
     @Override
-    public int delUser(UserInfo userInfo) {
-        return userMapper.delUser(userInfo);
+    public UserInfo delUser(UserInfo userInfo) {
+        int i = userMapper.delUser(userInfo);
+        if (i == FAILURE_CODE) {
+            return null;
+        }
+        userInfo = userMapper.selectUserById(userInfo.getUserId());
+        return userInfo;
     }
 }

SpringBoot_HLS/src/main/resources/mapper/UserMapper.xml

@@ -33,7 +33,10 @@
             user_id =#{id}
     </select>
 
-    <insert id="addUser" keyProperty="userId" useGeneratedKeys="true" parameterType="org.hand.train.springboot.springboot.bean.UserInfo">
+    <insert id="addUser"
+            keyProperty="userId"
+            useGeneratedKeys="true"
+            parameterType="org.hand.train.springboot.springboot.bean.UserInfo">
         INSERT INTO user_info(user_id, user_name, age, create_time)
         VALUES (#{userId}, #{userName}, #{age}, #{createTime})
     </insert>