新增账号注销功能

src/main/java/com/example/chat/controller/IndexController.java

@@ -1,5 +1,6 @@
 package com.example.chat.controller;
 
+import com.example.chat.service.ChatIndex;
 import com.example.chat.service.HeadOss;
 import lombok.extern.slf4j.Slf4j;
 import org.springframework.web.bind.annotation.*;
@@ -15,9 +16,14 @@ public class IndexController {
 
     @Resource
     HeadOss headOss;
-
+    @Resource
-    @RequestMapping("/chat/modifyHead")
+    ChatIndex chatIndex;
+    @RequestMapping("/index/modifyHead")
     public void modifyHead(@RequestParam("file")MultipartFile file, @RequestParam("username") String username) {
         headOss.ModifyHead(username,file);
     }
+    @GetMapping("/index/deleteUser")
+    public void deleteUser(@RequestParam("account")String account){
+        chatIndex.deleteUser(account);
+    }
 }

src/main/java/com/example/chat/controller/LoginController.java

@@ -1,16 +1,12 @@
 package com.example.chat.controller;
 
-import com.example.chat.ChatApplication;
 import com.example.chat.dao.UserMapper;
-import com.example.chat.dao.chat.ChatMapper;
 import com.example.chat.entity.Email;
 import com.example.chat.entity.Result;
 import com.example.chat.entity.User;
-import com.example.chat.entity.chat.Message;
 import com.example.chat.service.CodeCheck;
 import com.example.chat.service.LoginService;
 import com.example.chat.service.mail.MailUtil;
-import org.junit.Test;
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.web.bind.annotation.*;
 
@@ -68,6 +64,6 @@ public class LoginController {
 
     @PostMapping("/getHead")
     public User getHead(@RequestBody User user) throws IOException {
-        return userMapper.getHead(user.getAccount());
+        return userMapper.getUserByAccount(user.getAccount());
     }
 }

src/main/java/com/example/chat/dao/UserDao.java

@@ -3,14 +3,13 @@ package com.example.chat.dao;
 import com.example.chat.entity.User;
 import com.example.chat.dao.mybatis.MybatisSingleton;
 import org.apache.ibatis.session.SqlSession;
-import org.junit.Test;
 import org.springframework.stereotype.Repository;
 
 
 import java.io.IOException;
 
 @Repository
-public class Login implements UserMapper {
+public class UserDao implements UserMapper {
 
     @Override
     public void addUser(User user) throws IOException {
@@ -21,8 +20,11 @@ public class Login implements UserMapper {
     }
 
     @Override
-    public void delUser(User user) {
+    public void delUser(User user) throws IOException {
-
+        SqlSession sqlSession=MybatisSingleton.getSqlSessionFactory().openSession();
+        sqlSession.delete("dao.Login.deleteUser",user);
+        sqlSession.commit();
+        sqlSession.close();
     }
 
     @Override
@@ -55,12 +57,14 @@ public class Login implements UserMapper {
     }
 
     @Override
-    public User getHead(String account) throws IOException {
+    public User getUserByAccount(String account) throws IOException {
 
         SqlSession sqlSession=MybatisSingleton.getSqlSessionFactory().openSession();
-        User user=sqlSession.selectOne("dao.Login.getHead",account);
+        User user=sqlSession.selectOne("dao.Login.getUserByAccount",account);
         sqlSession.close();
         return user;
     }
 
+
+
 }

src/main/java/com/example/chat/dao/UserMapper.java

@@ -8,7 +8,7 @@ import java.io.IOException;
 public interface UserMapper {
     public abstract void addUser(User user) throws IOException;
 
-    public abstract void delUser(User user);
+    public abstract void delUser(User user) throws IOException;
 
     public abstract void updateUser(User oldUser,User newUser);
 
@@ -16,6 +16,7 @@ public interface UserMapper {
     public abstract User emailCheck(User user) throws IOException;
 
     public abstract void modifyHead(String Pic,String username) throws IOException;
-    public abstract User getHead(String account)throws IOException;
+    public abstract User getUserByAccount(String account)throws IOException;
+
 
 }

src/main/java/com/example/chat/dao/chat/ChatMapper.java

@@ -10,7 +10,7 @@ import java.util.List;
 public interface ChatMapper {
     public abstract void addMessage(Message message) throws IOException;
 
-    public abstract void deleteMessage();
+    public abstract void deleteMessage(String str) throws IOException;
 
     public abstract List<Message> getMessage() throws IOException;
 

src/main/java/com/example/chat/dao/chat/ChatMessage.java

@@ -37,7 +37,11 @@ public class ChatMessage implements ChatMapper {
     }
 
     @Override
-    public void deleteMessage() {
+    public void deleteMessage(String nickname) throws IOException {
+        SqlSession sqlSession=MybatisSingleton.getSqlSessionFactory().openSession();
+        sqlSession.update("dao.chat.Message.updateUser",nickname);
+        sqlSession.commit();
+        sqlSession.close();
 
     }
 }

src/main/java/com/example/chat/dao/chat/MapperTest.java

@@ -18,7 +18,7 @@ public class MapperTest {
 
     @Resource(name = "chatMessage")
     ChatMapper mapper;
-    @Resource(name = "login")
+    @Resource(name = "userDao")
     UserMapper userMapper;
 
 

src/main/java/com/example/chat/service/ChatIndex.java

@@ -0,0 +1,32 @@
+package com.example.chat.service;
+
+import com.example.chat.dao.UserMapper;
+import com.example.chat.dao.chat.ChatMapper;
+import com.example.chat.entity.User;
+import lombok.extern.slf4j.Slf4j;
+import org.springframework.stereotype.Service;
+
+import javax.annotation.Resource;
+import java.io.IOException;
+
+@Slf4j
+@Service
+public class ChatIndex {
+
+    @Resource
+    UserMapper userMapper;
+    @Resource
+    ChatMapper chatMapper;
+
+    public void deleteUser(String account) {
+        User user = new User();
+        user.setAccount(account);
+        try {
+            userMapper.delUser(user);
+            user = userMapper.getUserByAccount(account);
+            chatMapper.deleteMessage(user.getUsername());//修改用户的聊天记录的头像与昵称
+        } catch (IOException e) {
+            throw new RuntimeException(e);
+        }
+    }
+}

src/main/resources/mapper/MessageMapper.xml

@@ -13,7 +13,13 @@
 
     <update id="updateHead" parameterType="com.example.chat.entity.chat.Message">
         update message
-        set and pic = #{pic}
+        set  pic = #{pic}
+        where nickname = #{nickname}
+    </update>
+
+    <update id="updateUser" parameterType="com.example.chat.entity.chat.Message">
+        update message
+        set nickname='用户已注销' and pic = 'http://www.oss.coollh.cn/delete.jpg'
         where nickname = #{nickname}
     </update>
 

src/main/resources/mapper/UserMapper.xml

@@ -16,7 +16,7 @@
         insert into user(account, password, username, email, pic)
         values (#{account}, #{password}, #{username}, #{email}, #{pic});
     </insert>
-    <delete id="delUser">
+    <delete id="deleteUser" parameterType="com.example.chat.entity.User">
         delete
         from user
         where account = #{account};
@@ -31,9 +31,12 @@
         set pic=#{pic}
         where account = #{account}
     </update>
-    <select id="getHead" resultType="com.example.chat.entity.User">
+    <select id="getUserByAccount" resultType="com.example.chat.entity.User">
         select *
         from user
         where account = #{account}
     </select>
+
+
+
 </mapper>