Java监控程序异常并发送报警邮件（可监控异常、响应时长）

本文主要通过java Aop面向切面的思想进行访问程序的监控，话不多说，先上代码。

1.导入包：

 
      org.aspectj
      aspectjweaver
      1.8.13
 

2.定义切面代码：

package com.meiyibao.aop;

import com.carrotsearch.sizeof.RamUsageEstimator;
import com.ctrip.framework.apollo.Config;
import com.ctrip.framework.apollo.spring.annotation.ApolloConfig;
import com.meiyibao.easycoal.framework.metadata.MybData;
import com.meiyibao.constants.MybConstants;
import com.meiyibao.email.EmailUtil;
import com.meiyibao.util.encryption.ExceptionUtil;
import com.meiyibao.util.json.JSONHelper;
import lombok.extern.slf4j.Slf4j;
import org.aspectj.lang.ProceedingJoinPoint;
import org.aspectj.lang.annotation.Around;
import org.aspectj.lang.annotation.Aspect;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Component;
import org.springframework.web.bind.MethodArgumentNotValidException;
import org.springframework.web.context.request.RequestAttributes;
import org.springframework.web.context.request.RequestContextHolder;
import org.springframework.web.context.request.ServletRequestAttributes;
import org.springframework.web.multipart.MultipartFile;

import javax.servlet.http.HttpServletRequest;
import java.io.File;
import java.net.SocketTimeoutException;
import java.util.ArrayList;
import java.util.List;
import java.util.Objects;

/**
 * 用来处理异常信息的切面
 *
 * @author root
 */
@Component
@Aspect
@Slf4j
public class ExceptionAop {

    @ApolloConfig
    private Config config;

    @Autowired
    private EmailUtil emailUtil;

    @Around("execution(* com.meiyibao.controller..*.*(..))")//这里可以通过你的项目包名进行配置
    public Object around(ProceedingJoinPoint pj) throws Throwable {
        long starttime=System.currentTimeMillis();
        try {
            log.info("---------------------API请求参数：【"+getMessage(pj, null)+ "】");
            Object obj = pj.proceed();
            long size = RamUsageEstimator.sizeOf(obj);
            if(size<2*1024){
                //2kb
                log.info("---------------------API返回值：【" +"类名:{},方法名：{};返回值:{}】",pj.getTarget().getClass().getSimpleName(),pj.getSignature().getName(),JSONHelper.convertToJSON(obj));
            }
             return obj;
        } catch (MethodArgumentNotValidException e) {
            e.getBindingResult().getGlobalErrors();
            return MybData.error("请求参数验证失败");
        } catch (SocketTimeoutException e) {
            concatError(starttime, getMessage(pj, e));
            return MybData.error(MybConstants.EXCEPTION_TIMEOUT_ERROR);
        } catch (Exception e) {
            concatError(starttime, getMessage(pj, e));
            return MybData.error(MybConstants.EXCEPTION_BUSY);
        }
    }

    private void concatError(long starttime, String message) {
        StringBuilder stringBuilder=new StringBuilder( "
接口耗时:
");
        stringBuilder.append("接口花费时间：").append(System.currentTimeMillis()-starttime).append("ms
");
        stringBuilder.append(message);
        sendErrorNotice(stringBuilder.toString());
    }

    private String getMessage(ProceedingJoinPoint pj, Exception e) {
        if (e != null) {
            log.error(e.getMessage(), e);
        }
        RequestAttributes ra = RequestContextHolder.getRequestAttributes();
        ServletRequestAttributes sra = (ServletRequestAttributes) ra;
        HttpServletRequest request = sra.getRequest();
        String token = request.getHeader(MybConstants.AUTHORIZATION);
        String userInfo = request.getHeader(MybConstants.HEAD_USER_INFO);
        StringBuilder joiner = new StringBuilder("
链接:
")
                .append(request.getRequestURI())
                .append("
token:
")
                .append((token == null ? "" : token))
                .append("
user phone info:
")
                .append((userInfo == null ? "" : userInfo))
                .append(";
类名:
")
                .append(pj.getTarget().getClass().getSimpleName())
                .append(";
方法:
")
                .append(pj.getSignature().getName())
                .append(";
参数:
");
        Object[] args = pj.getArgs();
        List