content: package com.ruoyi.framework.web.exception;
  
  import javax.servlet.http.HttpServletRequest;
  import org.apache.shiro.authz.AuthorizationException;
  import org.slf4j.Logger;
  import org.slf4j.LoggerFactory;
  import org.springframework.validation.BindException;
  import org.springframework.web.HttpRequestMethodNotSupportedException;
  import org.springframework.web.bind.annotation.ExceptionHandler;
  import org.springframework.web.bind.annotation.RestControllerAdvice;
  import org.springframework.web.servlet.ModelAndView;
  import com.ruoyi.common.core.domain.AjaxResult;
  import com.ruoyi.common.exception.DemoModeException;
  import com.ruoyi.common.exception.ServiceException;
  import com.ruoyi.common.utils.ServletUtils;
  import com.ruoyi.common.utils.security.PermissionUtils;
  
  /**
   * 全局异常处理器
   * 
   * @author ruoyi
   */
  @RestControllerAdvice
  public class GlobalExceptionHandler
  {
      private static final Logger log = LoggerFactory.getLogger(GlobalExceptionHandler.class);
  
      /**
       * 权限校验异常（ajax请求返回json，redirect请求跳转页面）
       */
      @ExceptionHandler(AuthorizationException.class)
      public Object handleAuthorizationException(AuthorizationException e, HttpServletRequest request)
      {
          String requestURI = request.getRequestURI();
          log.error("请求地址'{}',权限校验失败'{}'", requestURI, e.getMessage());
          if (ServletUtils.isAjaxRequest(request))
          {
              return AjaxResult.error(PermissionUtils.getMsg(e.getMessage()));
          }
          else
          {
              return new ModelAndView("error/unauth");
          }
      }
  
      /**
       * 请求方式不支持
       */
      @ExceptionHandler(HttpRequestMethodNotSupportedException.class)
      public AjaxResult handleHttpRequestMethodNotSupported(HttpRequestMethodNotSupportedException e,
              HttpServletRequest request)
      {
          String requestURI = request.getRequestURI();
          log.error("请求地址'{}',不支持'{}'请求", requestURI, e.getMethod());
          return AjaxResult.error(e.getMessage());
      }
  
      /**
       * 拦截未知的运行时异常
       */
      @ExceptionHandler(RuntimeException.class)
      public AjaxResult handleRuntimeException(RuntimeException e, HttpServletRequest request)
      {
          String requestURI = request.getRequestURI();
          log.error("请求地址'{}',发生未知异常.", requestURI, e);
          return AjaxResult.error(e.getMessage());
      }
  
      /**
       * 系统异常
       */
      @ExceptionHandler(Exception.class)
      public AjaxResult handleException(Exception e, HttpServletRequest request)
      {
          String requestURI = request.getRequestURI();
          log.error("请求地址'{}',发生系统异常.", requestURI, e);
          return AjaxResult.error(e.getMessage());
      }
  
      /**
       * 业务异常
       */
      @ExceptionHandler(ServiceException.class)
      public Object handleServiceException(ServiceException e, HttpServletRequest request)
      {
          log.error(e.getMessage(), e);
          if (ServletUtils.isAjaxRequest(request))
          {
              return AjaxResult.error(e.getMessage());
          }
          else
          {
              return new ModelAndView("error/service", "errorMessage", e.getMessage());
          }
      }
  
      /**
       * 自定义验证异常
       */
      @ExceptionHandler(BindException.class)
      public AjaxResult handleBindException(BindException e)
      {
          log.error(e.getMessage(), e);
          String message = e.getAllErrors().get(0).getDefaultMessage();
          return AjaxResult.error(message);
      }
  
      /**
       * 演示模式异常
       */
      @ExceptionHandler(DemoModeException.class)
      public AjaxResult handleDemoModeException(DemoModeException e)
      {
          return AjaxResult.error("演示模式，不允许操作");
      }
  }
  