content: package org.ruoyi.common.security.handler;
  
  import cn.dev33.satoken.exception.NotLoginException;
  import cn.dev33.satoken.exception.NotPermissionException;
  import cn.dev33.satoken.exception.NotRoleException;
  import cn.hutool.core.util.ObjectUtil;
  import cn.hutool.http.HttpStatus;
  import jakarta.servlet.http.HttpServletRequest;
  import jakarta.validation.ConstraintViolation;
  import jakarta.validation.ConstraintViolationException;
  import lombok.extern.slf4j.Slf4j;
  import org.ruoyi.common.core.domain.R;
  import org.ruoyi.common.core.exception.DemoModeException;
  import org.ruoyi.common.core.exception.ServiceException;
  import org.ruoyi.common.core.utils.StreamUtils;
  import org.springframework.context.support.DefaultMessageSourceResolvable;
  import org.springframework.validation.BindException;
  import org.springframework.web.HttpRequestMethodNotSupportedException;
  import org.springframework.web.bind.MethodArgumentNotValidException;
  import org.springframework.web.bind.annotation.ExceptionHandler;
  import org.springframework.web.bind.annotation.RestControllerAdvice;
  
  /**
   * 全局异常处理器
   *
   * @author Lion Li
   */
  @Slf4j
  @RestControllerAdvice
  public class GlobalExceptionHandler {
  
      /**
       * 权限码异常
       */
      @ExceptionHandler(NotPermissionException.class)
      public R<Void> handleNotPermissionException(NotPermissionException e, HttpServletRequest request) {
          String requestURI = request.getRequestURI();
          log.error("请求地址'{}',权限码校验失败'{}'", requestURI, e.getMessage());
          return R.fail(HttpStatus.HTTP_FORBIDDEN, "没有访问权限，请联系管理员授权");
      }
  
      /**
       * 角色权限异常
       */
      @ExceptionHandler(NotRoleException.class)
      public R<Void> handleNotRoleException(NotRoleException e, HttpServletRequest request) {
          String requestURI = request.getRequestURI();
          log.error("请求地址'{}',角色权限校验失败'{}'", requestURI, e.getMessage());
          return R.fail(HttpStatus.HTTP_FORBIDDEN, "没有访问权限，请联系管理员授权");
      }
  
      /**
       * 认证失败
       */
      @ExceptionHandler(NotLoginException.class)
      public R<Void> handleNotLoginException(NotLoginException e, HttpServletRequest request) {
          String requestURI = request.getRequestURI();
          log.error("请求地址'{}',认证失败'{}',无法访问系统资源", requestURI, e.getMessage());
          return R.fail(HttpStatus.HTTP_UNAUTHORIZED, "认证失败，无法访问系统资源");
      }
  
      /**
       * 请求方式不支持
       */
      @ExceptionHandler(HttpRequestMethodNotSupportedException.class)
      public R<Void> handleHttpRequestMethodNotSupported(HttpRequestMethodNotSupportedException e,
                                                                  HttpServletRequest request) {
          String requestURI = request.getRequestURI();
          log.error("请求地址'{}',不支持'{}'请求", requestURI, e.getMethod());
          return R.fail(e.getMessage());
      }
  
      /**
       * 业务异常
       */
      @ExceptionHandler(ServiceException.class)
      public R<Void> handleServiceException(ServiceException e, HttpServletRequest request) {
          log.error(e.getMessage(), e);
          Integer code = e.getCode();
          return ObjectUtil.isNotNull(code) ? R.fail(code, e.getMessage()) : R.fail(e.getMessage());
      }
  
      /**
       * 拦截未知的运行时异常
       */
      @ExceptionHandler(RuntimeException.class)
      public R<Void> handleRuntimeException(RuntimeException e, HttpServletRequest request) {
          String requestURI = request.getRequestURI();
          log.error("请求地址'{}',发生未知异常.", requestURI, e);
          return R.fail(e.getMessage());
      }
  
      /**
       * 系统异常
       */
      @ExceptionHandler(Exception.class)
      public R<Void> handleException(Exception e, HttpServletRequest request) {
          String requestURI = request.getRequestURI();
          log.error("请求地址'{}',发生系统异常.", requestURI, e);
          return R.fail(e.getMessage());
      }
  
      /**
       * 自定义验证异常
       */
      @ExceptionHandler(BindException.class)
      public R<Void> handleBindException(BindException e) {
          log.error(e.getMessage(), e);
          String message = StreamUtils.join(e.getAllErrors(), DefaultMessageSourceResolvable::getDefaultMessage, ", ");
          return R.fail(message);
      }
  
      /**
       * 自定义验证异常
       */
      @ExceptionHandler(ConstraintViolationException.class)
      public R<Void> constraintViolationException(ConstraintViolationException e) {
          log.error(e.getMessage(), e);
          String message = StreamUtils.join(e.getConstraintViolations(), ConstraintViolation::getMessage, ", ");
          return R.fail(message);
      }
  
      /**
       * 自定义验证异常
       */
      @ExceptionHandler(MethodArgumentNotValidException.class)
      public R<Void> handleMethodArgumentNotValidException(MethodArgumentNotValidException e) {
          log.error(e.getMessage(), e);
          String message = e.getBindingResult().getFieldError().getDefaultMessage();
          return R.fail(message);
      }
  
      /**
       * 演示模式异常
       */
      @ExceptionHandler(DemoModeException.class)
      public R<Void> handleDemoModeException(DemoModeException e) {
          return R.fail("演示模式，不允许操作");
      }
  }
  