@ControllerAdvice 全局異常處理

ControllerAdvice 文檔

在spring 3.2中，新增了@ControllerAdvice 注解，它通常用于定義@ExceptionHandler， @InitBinder和@ModelAttribute 适用于所有@RequestMapping方法的方法。 此文檔主要講解如何全局捕獲異常并傳回給前端

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;

/**
 * 開發公司：青島海豚資料技術有限公司
 * 版權：青島海豚資料技術有限公司
 * <p>
 * ExceptionHandler
 *
 * @author 劉志強
 * @created Create Time: 2019/1/19
 */
@RestController
@ControllerAdvice
@CrossOrigin
public class AdviceController {

    /**
     * validation參數校驗異常
     *
     * @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權限異常
     * @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錯誤");
            commonResult.setMsg("token錯誤");
        } else if (ex instanceof UnauthorizedException) {
            commonResult.setCode(5202);
            commonResult.setMessage("使用者無權限");
            commonResult.setMsg("使用者無權限");
        } else {
            commonResult.setCode(5203);
            commonResult.setMsg(ex.getMessage());
        }
        return commonResult;
    }
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}