Java全局异常捕获

1.定义返回类

package com.eternalray.common;

import lombok.Data;

/**
 * @Author: Eternalray
 * 返回结果集公用方法
 */
@Data
public class Result<T> {
    /**
     *  success 是否成功返回结果 成功true 失败false
     */
    private boolean success;
    /**
     *  data 返回的结果数据
     */
    private T data;

    public static <T> Result<T> set(boolean success,T data){
        Result<T> result=new Result<>();
        result.setSuccess(success);
        result.setData(data);
        return  result;
    }
}

2.定义异常类

package com.eternalray.conf;

import com.eternalray.common.Result;
import lombok.extern.slf4j.Slf4j;
import org.springframework.web.bind.annotation.ControllerAdvice;
import org.springframework.web.bind.annotation.ExceptionHandler;
import org.springframework.web.bind.annotation.ResponseBody;

import java.lang.reflect.UndeclaredThrowableException;

/**
 * 全局异常处理配置
 * @author EternalRay
 */
@ControllerAdvice
@ResponseBody
@Slf4j
public class GlobalExceptionHandleConf {

    /**
     * 顶级异常处理
     * @param e
     * @return
     */
    @ExceptionHandler(Exception.class)
    public Object handlerException(Exception e){
        //annotation抛出的异常
        if(e instanceof UndeclaredThrowableException) {
            e = (Exception) ((UndeclaredThrowableException)e).getUndeclaredThrowable();
        }
        log.error("[handleException]: ",e);
        return Result.set(false,e.getMessage());
    }
}