增加重置密码修改用户信息功能

backend/src/main/java/com/qqchen/deploy/backend/framework/exception/UniqueConstraintException.java

@@ -0,0 +1,16 @@
+package com.qqchen.deploy.backend.framework.exception;
+
+import com.qqchen.deploy.backend.framework.enums.ResponseCode;
+import lombok.Getter;
+
+@Getter
+public class UniqueConstraintException extends BusinessException {
+    private final String field;
+    private final String value;
+
+    public UniqueConstraintException(ResponseCode code, String field, String value) {
+        super(code);
+        this.field = field;
+        this.value = value;
+    }
+} 

backend/src/main/java/com/qqchen/deploy/backend/framework/handler/GlobalExceptionHandler.java

@@ -4,11 +4,13 @@ import com.qqchen.deploy.backend.framework.api.Response;
 import com.qqchen.deploy.backend.framework.enums.ResponseCode;
 import com.qqchen.deploy.backend.framework.exception.BusinessException;
 import com.qqchen.deploy.backend.framework.exception.SystemException;
+import com.qqchen.deploy.backend.framework.exception.UniqueConstraintException;
 import io.jsonwebtoken.ExpiredJwtException;
 import io.jsonwebtoken.MalformedJwtException;
 import lombok.extern.slf4j.Slf4j;
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.context.MessageSource;
+import org.springframework.context.i18n.LocaleContextHolder;
 import org.springframework.security.authentication.BadCredentialsException;
 import org.springframework.web.bind.annotation.ExceptionHandler;
 import org.springframework.web.bind.annotation.RestControllerAdvice;
@@ -76,4 +78,11 @@ public class GlobalExceptionHandler {
         log.error("Unexpected error occurred", e);
         return Response.error(ResponseCode.ERROR);
     }
+
+    @ExceptionHandler(UniqueConstraintException.class)
+    public Response<?> handleUniqueConstraintException(UniqueConstraintException e) {
+        String message = messageSource.getMessage(e.getErrorCode().getMessageKey(), new Object[] {e.getField(), e.getValue()}, LocaleContextHolder.getLocale());
+        log.warn("Unique constraint violation: {} = {}", e.getField(), e.getValue());
+        return Response.error(e.getErrorCode(), message);
+    }
 } 

backend/src/main/java/com/qqchen/deploy/backend/framework/service/impl/BaseServiceImpl.java

@@ -66,6 +66,7 @@ public abstract class BaseServiceImpl<T extends Entity<ID>, D extends BaseDTO, I
     @Transactional
     public D create(D dto) {
         validateDatabaseOperation("create");
+        validateUniqueConstraints(dto);
         T entity = converter.toEntity(dto);
         T savedEntity = repository.save(entity);
         return converter.toDto(savedEntity);
@@ -416,4 +417,12 @@ public abstract class BaseServiceImpl<T extends Entity<ID>, D extends BaseDTO, I
                 "Database operation '" + operation + "' is not supported in integration service");
         }
     }
+
+    /**
+     * 校验唯一约束
+     * 子类可以重写此方法实现具体的唯一性检查
+     */
+    protected void validateUniqueConstraints(D dto) {
+        // 默认不做任何检查
+    }
 }

backend/src/main/java/com/qqchen/deploy/backend/repository/IUserRepository.java

@@ -1,7 +1,7 @@
 package com.qqchen.deploy.backend.repository;
 
-import com.qqchen.deploy.backend.framework.repository.IBaseRepository;
 import com.qqchen.deploy.backend.entity.User;
+import com.qqchen.deploy.backend.framework.repository.IBaseRepository;
 import org.springframework.stereotype.Repository;
 
 import java.util.Optional;
@@ -9,5 +9,18 @@ import java.util.Optional;
 @Repository
 public interface IUserRepository extends IBaseRepository<User, Long> {
 
+    /**
+     * 根据用户名查找未删除的用户（用于登录等业务操作）
+     */
     Optional<User> findByUsernameAndDeletedFalse(String username);
+
+    /**
+     * 检查用户名是否存在（包括已删除的记录）
+     */
+    boolean existsByUsername(String username);
+
+    /**
+     * 检查邮箱是否存在（包括已删除的记录）
+     */
+    boolean existsByEmail(String email);
 }

backend/src/main/java/com/qqchen/deploy/backend/service/impl/RoleServiceImpl.java

@@ -3,6 +3,7 @@ package com.qqchen.deploy.backend.service.impl;
 import com.qqchen.deploy.backend.entity.Role;
 import com.qqchen.deploy.backend.framework.enums.ResponseCode;
 import com.qqchen.deploy.backend.framework.exception.BusinessException;
+import com.qqchen.deploy.backend.framework.exception.UniqueConstraintException;
 import com.qqchen.deploy.backend.model.RoleDTO;
 import com.qqchen.deploy.backend.framework.service.impl.BaseServiceImpl;
 import com.qqchen.deploy.backend.repository.IRoleRepository;
@@ -42,4 +43,17 @@ public class RoleServiceImpl extends BaseServiceImpl<Role, RoleDTO, Long> implem
             throw new BusinessException(ResponseCode.ROLE_NAME_EXISTS);
         }
     }
+
+    @Override
+    protected void validateUniqueConstraints(RoleDTO dto) {
+        // 检查角色编码唯一性
+        if (repository.existsByCodeAndDeletedFalse(dto.getCode())) {
+            throw new UniqueConstraintException(ResponseCode.ROLE_CODE_EXISTS, "code", dto.getCode());
+        }
+
+        // 检查角色名称唯一性
+        if (repository.existsByNameAndDeletedFalse(dto.getName())) {
+            throw new UniqueConstraintException(ResponseCode.ROLE_NAME_EXISTS, "name", dto.getName());
+        }
+    }
 }

backend/src/main/java/com/qqchen/deploy/backend/service/impl/UserServiceImpl.java

@@ -5,6 +5,7 @@ import com.qqchen.deploy.backend.framework.annotation.ServiceType;
 import com.qqchen.deploy.backend.framework.annotation.Audited;
 import com.qqchen.deploy.backend.framework.enums.ResponseCode;
 import com.qqchen.deploy.backend.framework.exception.BusinessException;
+import com.qqchen.deploy.backend.framework.exception.UniqueConstraintException;
 import com.qqchen.deploy.backend.framework.security.SecurityUtils;
 import com.qqchen.deploy.backend.framework.security.util.JwtTokenUtil;
 import com.qqchen.deploy.backend.framework.service.impl.BaseServiceImpl;
@@ -27,6 +28,7 @@ import org.springframework.security.core.Authentication;
 import org.springframework.security.core.userdetails.UserDetails;
 import org.springframework.stereotype.Service;
 import org.springframework.transaction.annotation.Transactional;
+import org.springframework.util.StringUtils;
 
 import java.util.ArrayList;
 import java.util.List;
@@ -160,4 +162,17 @@ public class UserServiceImpl extends BaseServiceImpl<User, UserDTO, Long> implem
         repository.save(user);
         log.info("用户 {} 密码已重置", user.getUsername());
     }
+
+    @Override
+    protected void validateUniqueConstraints(UserDTO dto) {
+        // 检查用户名唯一性（包括已删除的记录）
+        if (userRepository.existsByUsername(dto.getUsername())) {
+            throw new UniqueConstraintException(ResponseCode.USERNAME_EXISTS, "username", dto.getUsername());
+        }
+
+        // 检查邮箱唯一性（包括已删除的记录）
+        if (StringUtils.hasText(dto.getEmail()) && userRepository.existsByEmail(dto.getEmail())) {
+            throw new UniqueConstraintException(ResponseCode.EMAIL_EXISTS, "email", dto.getEmail());
+        }
+    }
 }

backend/src/main/resources/messages.properties

@@ -14,8 +14,8 @@ data.not.found=找不到ID为{0}的{1}
 
 # 用户相关
 user.not.found=用户不存在
-user.username.exists=用户名已存在
+user.username.exists=用户名"{0}"已存在
-user.email.exists=邮箱已存在
+user.email.exists=邮箱"{0}"已存在
 user.login.error=用户名或密码错误
 
 # 系统异常消息
@@ -42,8 +42,8 @@ jwt.token.missing=未提供登录凭证
 
 # 角色相关错误消息
 role.not.found=角色不存在
-role.code.exists=角色编码已存在
+role.code.exists=角色编码"{0}"已存在
-role.name.exists=角色名称已存在
+role.name.exists=角色名称"{0}"已存在
 role.in.use=角色正在使用中，无法删除
 role.admin.cannot.delete=不能删除超级管理员角色
 role.admin.cannot.update=不能修改超级管理员角色