@ControllerAdvice 全局异常处理

迈不过友情╰ 2022-04-25 01:36 249阅读 0赞

### [ControllerAdvice 文档][ControllerAdvice] ###

#### 在spring 3.2中，新增了@ControllerAdvice 注解，它通常用于定义@ExceptionHandler， @InitBinder和@ModelAttribute 适用于所有@RequestMapping方法的方法。 此文档主要讲解如何全局捕获异常并返回给前端 ####

package com.dolphin.sigle.root.config.eorr;
    
    import com.dolphin.common.response.CommonResult;
    import org.apache.shiro.authz.AuthorizationException;
    import org.apache.shiro.authz.UnauthenticatedException;
    import org.apache.shiro.authz.UnauthorizedException;
    import org.springframework.validation.FieldError;
    import org.springframework.web.bind.MethodArgumentNotValidException;
    import org.springframework.web.bind.annotation.ControllerAdvice;
    import org.springframework.web.bind.annotation.CrossOrigin;
    import org.springframework.web.bind.annotation.ExceptionHandler;
    import org.springframework.web.bind.annotation.RestController;
    
    import java.util.List;
    
    /**
     * 开发公司：青岛海豚数据技术有限公司
     * 版权：青岛海豚数据技术有限公司
     * <p>
     * ExceptionHandler
     *
     * @author 刘志强
     * @created Create Time: 2019/1/19
     */
    @RestController
    @ControllerAdvice
    @CrossOrigin
    public class AdviceController {
    
        /**
         * validation参数校验异常
         *
         * @param ex
         * @return
         */
        @ExceptionHandler(MethodArgumentNotValidException.class)
        public CommonResult<String> handlerUserNotExistException(MethodArgumentNotValidException ex) {
            CommonResult<String> commonResult = new CommonResult<String>();
            commonResult.setCode(5100);
            String eorrs = "|";
            List<FieldError> eorrList = ex.getBindingResult().getFieldErrors();
            for (FieldError fieldError : eorrList) {
                eorrs = eorrs + fieldError.getDefaultMessage() + "|";
            }
            commonResult.setMessage(eorrs);
            commonResult.setMsg(eorrs);
            return commonResult;
        }
    
        /**
         * shiro权限异常
         * @param ex
         * @return
         */
        @ExceptionHandler(AuthorizationException.class)
        public CommonResult<String> authorizationException(AuthorizationException ex) {
            CommonResult<String> commonResult = new CommonResult<String>();
            if (ex instanceof UnauthenticatedException) {
                commonResult.setCode(120);
                commonResult.setMessage("token错误");
                commonResult.setMsg("token错误");
            } else if (ex instanceof UnauthorizedException) {
                commonResult.setCode(5202);
                commonResult.setMessage("用户无权限");
                commonResult.setMsg("用户无权限");
            } else {
                commonResult.setCode(5203);
                commonResult.setMsg(ex.getMessage());
            }
            return commonResult;
        }
        .
        .
        .
        .
        .
        .
    
    }

[ControllerAdvice]: https://docs.spring.io/spring-framework/docs/5.0.0.M1/javadoc-api/org/springframework/web/bind/annotation/ControllerAdvice.html