content: package com.java2nb.common.exception;
  
  import com.java2nb.common.config.Constant;
  import com.java2nb.common.domain.LogDO;
  import com.java2nb.common.service.LogService;
  import com.java2nb.common.utils.HttpServletUtils;
  import com.java2nb.common.utils.R;
  import com.java2nb.common.utils.ShiroUtils;
  import com.java2nb.system.domain.UserDO;
  import org.apache.shiro.authz.AuthorizationException;
  import org.slf4j.Logger;
  import org.slf4j.LoggerFactory;
  import org.springframework.beans.factory.annotation.Autowired;
  import org.springframework.dao.DuplicateKeyException;
  import org.springframework.web.bind.annotation.ExceptionHandler;
  import org.springframework.web.bind.annotation.RestControllerAdvice;
  import org.springframework.web.servlet.ModelAndView;
  
  import javax.servlet.http.HttpServletRequest;
  import java.util.Date;
  
  /**
   * 异常处理器
   */
  @RestControllerAdvice
  public class CommonExceptionHandler {
      private Logger logger = LoggerFactory.getLogger(getClass());
      @Autowired
      LogService logService;
  
      /**
       * 自定义业务异常处理
       */
      @ExceptionHandler(BusinessException.class)
      public R handleBusinessException(BusinessException e) {
          logger.error(e.getMessage(), e);
          return R.error(e.getCode(),e.getMessage());
      }
  
      @ExceptionHandler(DuplicateKeyException.class)
      public R handleDuplicateKeyException(DuplicateKeyException e) {
          logger.error(e.getMessage(), e);
          return R.error("数据库中已存在该记录");
      }
  
      @ExceptionHandler(org.springframework.web.servlet.NoHandlerFoundException.class)
      public R noHandlerFoundException(org.springframework.web.servlet.NoHandlerFoundException e) {
          logger.error(e.getMessage(), e);
          return R.error(404, "没找找到页面");
      }
  
      @ExceptionHandler(AuthorizationException.class)
      public Object handleAuthorizationException(AuthorizationException e, HttpServletRequest request) {
          logger.error(e.getMessage(), e);
          if (HttpServletUtils.jsAjax(request)) {
              return R.error(403, "未授权");
          }
          return new ModelAndView("error/403");
      }
  
  
      @ExceptionHandler({Exception.class})
      public Object handleException(Exception e, HttpServletRequest request) {
          LogDO logDO = new LogDO();
          logDO.setGmtCreate(new Date());
          logDO.setOperation(Constant.LOG_ERROR);
          logDO.setMethod(request.getRequestURL().toString());
          logDO.setParams(e.toString());
          UserDO current = ShiroUtils.getUser();
          if(null!=current){
              logDO.setUserId(current.getUserId());
              logDO.setUsername(current.getUsername());
          }
          logService.save(logDO);
          logger.error(e.getMessage(), e);
          if (HttpServletUtils.jsAjax(request)) {
              return R.error(500, "服务器错误，请联系管理员");
          }
          return new ModelAndView("error/500");
      }
  }
  