全局异常处理

package com.itzhigui.handler;

import com.itzhigui.controller.day02.BaseController;
import com.itzhigui.utils.R;
import org.springframework.web.bind.annotation.ControllerAdvice;
import org.springframework.web.bind.annotation.ExceptionHandler;

import javax.servlet.http.HttpServletResponse;
import java.util.Map;

/**
 * 自定义全局异常处理的类
 */
@ControllerAdvice//进行全局异常处理
public class MyExceptionHandler extends BaseController {
    @ExceptionHandler(value = Exception.class) //定义一个方法进行全局异常处理
    public void handleException(
            HttpServletResponse response,
            Throwable e
    ){
        Map<String, Object> map = R.fail(e.getMessage());
        writeJson(response,map);
    }
}