用户密码登录功能完成

src/main/java/com/bao/dating/controller/UserController.java

@@ -1,9 +1,12 @@
 package com.bao.dating.controller;
 
+import com.bao.dating.common.Result;
+import com.bao.dating.common.ResultCode;
+import com.bao.dating.pojo.dto.UserLoginDTO;
+import com.bao.dating.pojo.vo.UserLoginVO;
 import com.bao.dating.service.UserService;
 import org.springframework.beans.factory.annotation.Autowired;
-import org.springframework.web.bind.annotation.RequestMapping;
-import org.springframework.web.bind.annotation.RestController;
+import org.springframework.web.bind.annotation.*;
 
 @RestController
 @RequestMapping("/user")
@@ -11,4 +14,14 @@ public class UserController {
 
     @Autowired
     private UserService userService;
+
+    /**
+     * 登录
+     * @param userLoginDTO 登录参数
+     */
+    @PostMapping("/login")
+    public Result<UserLoginVO> login(@RequestBody UserLoginDTO userLoginDTO) {
+        UserLoginVO userloginVO = userService.userLogin(userLoginDTO);
+        return Result.success(ResultCode.SUCCESS, "登录成功", userloginVO);
+    }
 }

src/main/java/com/bao/dating/mapper/UserMapper.java

@@ -1,7 +1,16 @@
 package com.bao.dating.mapper;
 
+import com.bao.dating.pojo.entity.User;
 import org.apache.ibatis.annotations.Mapper;
 
 @Mapper
 public interface UserMapper {
+
+    /**
+     * 根据用户名查询用户
+     *
+     * @param username 用户名
+     * @return 用户
+     */
+    User getByUsername(String username);
 }

src/main/java/com/bao/dating/pojo/dto/UserLoginDTO.java

@@ -0,0 +1,14 @@
+package com.bao.dating.pojo.dto;
+
+import lombok.Data;
+
+import java.io.Serializable;
+
+/**
+ * 用户登录数据传输对象
+ */
+@Data
+public class UserLoginDTO implements Serializable {
+    private String username;
+    private String password;
+}

src/main/java/com/bao/dating/service/UserService.java

@@ -1,4 +1,13 @@
 package com.bao.dating.service;
 
+import com.bao.dating.pojo.dto.UserLoginDTO;
+import com.bao.dating.pojo.vo.UserLoginVO;
+
 public interface UserService {
+    /**
+     * 登录
+     * @param userLoginDTO 登录参数
+     * @return 登录结果
+     */
+    UserLoginVO userLogin(UserLoginDTO userLoginDTO);
 }

src/main/java/com/bao/dating/service/impl/UserServiceImpl.java

@@ -1,13 +1,52 @@
 package com.bao.dating.service.impl;
 
 import com.bao.dating.mapper.UserMapper;
+import com.bao.dating.pojo.dto.UserLoginDTO;
+import com.bao.dating.pojo.entity.User;
+import com.bao.dating.pojo.vo.UserLoginVO;
 import com.bao.dating.service.UserService;
+import com.bao.dating.util.JwtUtil;
+import com.bao.dating.util.MD5Util;
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.stereotype.Service;
 
+import java.util.HashMap;
+import java.util.Map;
+
 @Service
 public class UserServiceImpl implements UserService {
 
     @Autowired
     private UserMapper userMapper;
+
+    @Override
+    public UserLoginVO userLogin(UserLoginDTO userLoginDTO) {
+        // 参数校验
+        if (userLoginDTO == null || userLoginDTO.getUsername() == null || userLoginDTO.getPassword() == null) {
+            throw new RuntimeException("用户名或密码不能为空");
+        }
+        // 查询用户
+        User user = userMapper.getByUsername(userLoginDTO.getUsername());
+        if (user == null){
+            throw new RuntimeException("用户不存在");
+        }
+        // 密码加密
+        boolean match = MD5Util.verifyWithSalt(
+                userLoginDTO.getPassword(),
+                user.getSalt(),
+                user.getPasswordHash()
+        );
+        // 密码校验
+        if (!match){
+            throw new RuntimeException("密码错误");
+        }
+        // 生成token
+        String token = JwtUtil.generateToken(String.valueOf(user.getUserId()));
+        // 封装返回
+        UserLoginVO userLoginVO = new UserLoginVO();
+        userLoginVO.setUserId(user.getUserId());
+        userLoginVO.setNickname(user.getNickname());
+        userLoginVO.setToken(token);
+        return userLoginVO;
+    }
 }

src/main/resources/com/bao/dating/mapper/UserMapper.xml

@@ -4,5 +4,8 @@
 
 <mapper namespace="com.bao.dating.mapper.UserMapper">
 
+     <select id="getByUsername" resultType="com.bao.dating.pojo.entity.User">
+        SELECT * FROM user WHERE user_name = #{userName}
+    </select>
 
 </mapper>