用户模块：用户注册接口

src/main/java/com/huangge1199/picture/controller/MainController.java

@@ -6,7 +6,7 @@ import org.springframework.web.bind.annotation.RequestMapping;
 import org.springframework.web.bind.annotation.RestController;
 
 /**
- * MainController
+ * 健康检查
  *
  * @author huangge1199
  * @since 2025/6/28 16:29:11

src/main/java/com/huangge1199/picture/controller/UserController.java

@@ -0,0 +1,41 @@
+package com.huangge1199.picture.controller;
+
+import com.huangge1199.picture.common.R;
+import com.huangge1199.picture.exception.ErrorCode;
+import com.huangge1199.picture.exception.ThrowUtils;
+import com.huangge1199.picture.model.dto.user.UserRegisterRequest;
+import com.huangge1199.picture.service.UserService;
+import org.springframework.web.bind.annotation.PostMapping;
+import org.springframework.web.bind.annotation.RequestBody;
+import org.springframework.web.bind.annotation.RequestMapping;
+import org.springframework.web.bind.annotation.RestController;
+
+import javax.annotation.Resource;
+
+/**
+ * 用户
+ *
+ * @author huangge1199
+ * @since 2025/6/30 10:46:25
+ */
+@RestController
+@RequestMapping("/user")
+public class UserController {
+
+    @Resource
+    private UserService userService;
+
+    /**
+     * 用户注册
+     */
+    @PostMapping("/register")
+    public R<Long> userRegister(@RequestBody UserRegisterRequest userRegisterRequest) {
+        ThrowUtils.throwIf(userRegisterRequest == null, ErrorCode.PARAMS_ERROR);
+        String userAccount = userRegisterRequest.getUserAccount();
+        String userPassword = userRegisterRequest.getUserPassword();
+        String checkPassword = userRegisterRequest.getCheckPassword();
+        long result = userService.userRegister(userAccount, userPassword, checkPassword);
+        return R.ok(result);
+    }
+}
+

src/main/java/com/huangge1199/picture/exception/ErrorCode.java

@@ -3,7 +3,6 @@ package com.huangge1199.picture.exception;
 import lombok.Getter;
 
 /**
- * ErrorCode
  * 异常信息
  *
  * @author huangge1199

src/main/java/com/huangge1199/picture/exception/GlobalExceptionHandler.java

@@ -0,0 +1,29 @@
+package com.huangge1199.picture.exception;
+
+import com.huangge1199.picture.common.R;
+import lombok.extern.slf4j.Slf4j;
+import org.springframework.web.bind.annotation.ExceptionHandler;
+import org.springframework.web.bind.annotation.RestControllerAdvice;
+
+/**
+ * 全局异常处理器
+ *
+ * @author huangge1199
+ * @since 2025/6/30 10:56:33
+ */
+@RestControllerAdvice
+@Slf4j
+public class GlobalExceptionHandler {
+
+    @ExceptionHandler(MyException.class)
+    public R<?> businessExceptionHandler(MyException e) {
+        log.error("BusinessException", e);
+        return R.fail(e.getCode(), e.getMessage());
+    }
+
+    @ExceptionHandler(RuntimeException.class)
+    public R<?> businessExceptionHandler(RuntimeException e) {
+        log.error("RuntimeException", e);
+        return R.fail(ErrorCode.SYSTEM_ERROR, "系统错误");
+    }
+}

src/main/java/com/huangge1199/picture/exception/MyException.java

@@ -0,0 +1,36 @@
+package com.huangge1199.picture.exception;
+
+import lombok.Getter;
+import lombok.Setter;
+
+/**
+ * 自定义业务异常
+ *
+ * @author huangge1199
+ * @since 2025/6/30 10:42:10
+ */
+@Setter
+@Getter
+public class MyException extends RuntimeException {
+
+    /**
+     * 错误码
+     */
+    private final int code;
+
+    public MyException(int code, String message) {
+        super(message);
+        this.code = code;
+    }
+
+    public MyException(ErrorCode errorCode) {
+        super(errorCode.getMessage());
+        this.code = errorCode.getCode();
+    }
+
+    public MyException(ErrorCode errorCode, String message) {
+        super(message);
+        this.code = errorCode.getCode();
+    }
+
+}

src/main/java/com/huangge1199/picture/exception/ThrowUtils.java

@@ -0,0 +1,44 @@
+package com.huangge1199.picture.exception;
+
+/**
+ * 异常处理工具类
+ *
+ * @author huangge1199
+ * @since 2025/6/30 11:00:12
+ */
+public class ThrowUtils {
+
+    /**
+     * 条件成立则抛异常
+     *
+     * @param condition        条件
+     * @param runtimeException 异常
+     */
+    public static void throwIf(boolean condition, RuntimeException runtimeException) {
+        if (condition) {
+            throw runtimeException;
+        }
+    }
+
+    /**
+     * 条件成立则抛异常
+     *
+     * @param condition 条件
+     * @param errorCode 错误码
+     */
+    public static void throwIf(boolean condition, ErrorCode errorCode) {
+        throwIf(condition, new MyException(errorCode));
+    }
+
+    /**
+     * 条件成立则抛异常
+     *
+     * @param condition 条件
+     * @param errorCode 错误码
+     * @param message   错误信息
+     */
+    public static void throwIf(boolean condition, ErrorCode errorCode, String message) {
+        throwIf(condition, new MyException(errorCode, message));
+    }
+
+}

src/main/java/com/huangge1199/picture/model/dto/user/UserRegisterRequest.java

@@ -0,0 +1,32 @@
+package com.huangge1199.picture.model.dto.user;
+
+import lombok.Data;
+
+import java.io.Serializable;
+
+/**
+ * UserRegisterRequest
+ *
+ * @author huangge1199
+ * @since 2025/6/30 10:38:36
+ */
+@Data
+public class UserRegisterRequest implements Serializable {
+
+    private static final long serialVersionUID = 3191241716373120793L;
+
+    /**
+     * 账号
+     */
+    private String userAccount;
+
+    /**
+     * 密码
+     */
+    private String userPassword;
+
+    /**
+     * 确认密码
+     */
+    private String checkPassword;
+}

src/main/java/com/huangge1199/picture/service/UserService.java

@@ -10,4 +10,22 @@ import com.baomidou.mybatisplus.extension.service.IService;
  */
 public interface UserService extends IService<User> {
 
+    /**
+     * 用户注册
+     *
+     * @param userAccount   用户账户
+     * @param userPassword  用户密码
+     * @param checkPassword 校验密码
+     * @return 新用户 id
+     */
+    long userRegister(String userAccount, String userPassword, String checkPassword);
+
+    /**
+     * 获取加密后的密码
+     *
+     * @param userPassword 用户密码
+     * @return 加密后的密码
+     */
+    String getEncryptPassword(String userPassword);
+
 }

src/main/java/com/huangge1199/picture/service/impl/UserServiceImpl.java

@@ -1,10 +1,16 @@
 package com.huangge1199.picture.service.impl;
 
+import cn.hutool.core.util.StrUtil;
+import com.baomidou.mybatisplus.core.conditions.query.QueryWrapper;
 import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
+import com.huangge1199.picture.exception.ErrorCode;
+import com.huangge1199.picture.exception.MyException;
 import com.huangge1199.picture.model.entity.User;
+import com.huangge1199.picture.model.enums.UserRoleEnum;
 import com.huangge1199.picture.service.UserService;
 import com.huangge1199.picture.mapper.UserMapper;
 import org.springframework.stereotype.Service;
+import org.springframework.util.DigestUtils;
 
 /**
  * @author hyy
@@ -14,6 +20,50 @@ import org.springframework.stereotype.Service;
 @Service
 public class UserServiceImpl extends ServiceImpl<UserMapper, User>
         implements UserService {
+    @Override
+    public long userRegister(String userAccount, String userPassword, String checkPassword) {
+        // 1. 校验
+        if (StrUtil.hasBlank(userAccount, userPassword, checkPassword)) {
+            throw new MyException(ErrorCode.PARAMS_ERROR, "参数为空");
+        }
+        if (userAccount.length() < 4) {
+            throw new MyException(ErrorCode.PARAMS_ERROR, "用户账号过短");
+        }
+        if (userPassword.length() < 8 || checkPassword.length() < 8) {
+            throw new MyException(ErrorCode.PARAMS_ERROR, "用户密码过短");
+        }
+        if (!userPassword.equals(checkPassword)) {
+            throw new MyException(ErrorCode.PARAMS_ERROR, "两次输入的密码不一致");
+        }
+        // 2. 检查是否重复
+        QueryWrapper<User> queryWrapper = new QueryWrapper<>();
+        queryWrapper.eq("userAccount", userAccount);
+        long count = this.baseMapper.selectCount(queryWrapper);
+        if (count > 0) {
+            throw new MyException(ErrorCode.PARAMS_ERROR, "账号重复");
+        }
+        // 3. 加密
+        String encryptPassword = getEncryptPassword(userPassword);
+        // 4. 插入数据
+        User user = new User();
+        user.setUserAccount(userAccount);
+        user.setUserPassword(encryptPassword);
+        user.setUserName("无名");
+        user.setUserRole(UserRoleEnum.USER.getValue());
+        boolean saveResult = this.save(user);
+        if (!saveResult) {
+            throw new MyException(ErrorCode.SYSTEM_ERROR, "注册失败，数据库错误");
+        }
+        return user.getId();
+    }
+
+    @Override
+    public String getEncryptPassword(String userPassword) {
+        // 盐值，混淆密码
+        final String salt = "huangge";
+        return DigestUtils.md5DigestAsHex((salt + userPassword).getBytes());
+    }
+
 
 }
 

src/main/resources/application.yml

@@ -8,7 +8,7 @@ spring:
   # 数据库配置
   datasource:
     driver-class-name: com.mysql.cj.jdbc.Driver
-    url: jdbc:mysql://192.168.188.2:3306/long_picture
+    url: jdbc:mysql://192.168.188.2:3306/long-picture
     username: root
     password: huangge1199
 mybatis-plus: