本文小编为大家详细介绍“JAVA基于Slack怎么实现异常日志报警”，内容详细，步骤清晰，细节处理妥当，希望这篇“JAVA基于Slack怎么实现异常日志报警”文章能帮助大家解决疑惑，下面跟着小编的思路慢慢深入，一起来学习新知识吧。
实现逻辑：一般情况下，代码中都会对会出现异常的地方，进行处理，最基本的就是打印日志，本文将实现在打印日志时，同时将异常信息发送到Slack频道中，开发或运维人员创建Slack账号，加入频道，便可实时收到异常信息的告警。
Slack 它是一种基于Web的实时通信工具，可作为台式机/笔记本电脑、移动设备的单个应用程序以及Web应用程序使用。基本上，它是您的私人聊天和协作室。对于许多公司而言，它已取代电子邮件/私人论坛/聊天室成为主要的内部基于文本的沟通渠道。
可以理解为它是聊天群组 + 大规模工具集成 + 文件整合 + 统一搜索。截至2014年底，Slack 已经整合了电子邮件、短信、Google Drives、Twitter、Trello、Asana、GitHub 等 65 种工具和服务，可以把各种碎片化的企业沟通和协作集中到一起。几个重要的概念：
工作区：相当去工作空间，用户可以加入或者创建不同的工作区，很多时候，工作区的名称和URL将是公司名称。
频道：频道可以区分为不同的团队或者主题，也可以理解成相当于微信，频道中的成员共享频道中的信息。
创建账号，登录，可以使用app或者用浏览器登录网页版
创建自己的工作区，还可以邀请其他人加入工作区。
创建频道，邀请同事加入，此时可以往频道中发信息，加入频道的人都可以看到信息
工作区添加应用Incoming WebHook，选择频道，保存Webhook URL，后面将通过Webhook实现程序往频道中发消息。
<dependencies> <dependency> <groupId>org.apache.httpcomponents</groupId> <artifactId>httpclient</artifactId> <version>4.5.2</version> </dependency> <dependency> <groupId>com.alibaba</groupId> <artifactId>fastjson</artifactId> <version>1.2.83</version> </dependency> <dependency> <groupId>commons-configuration</groupId> <artifactId>commons-configuration</artifactId> <version>1.10</version> </dependency> <dependency> <groupId>junit</groupId> <artifactId>junit</artifactId> <version>4.10</version> <scope>test</scope> </dependency> </dependencies>
package com.yy.operation;
import com.yy.common.CommonThreadFactory;
import com.yy.common.ConnUtil;
import org.apache.commons.lang.StringUtils;
import java.text.MessageFormat;
import java.text.SimpleDateFormat;
import java.util.concurrent.*;
import java.util.logging.Level;
import java.util.logging.Logger;
/**
* @author ：Max
* @date ：Created in 2022/8/26 下午12:54
* @description：
*/
public class SlackUtil {
private static final Logger logger = Logger.getLogger(SlackUtil.class.getCanonicalName());
private static SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
private static final String SEND_USER_NAME ="运维机器人";
private static int MAX_RETRY =3;
/**
* 线程池 抛弃策略DiscardPolicy：这种策略，会默默的把新来的这个任务给丢弃；不会得到通知
*/
private static ExecutorService executor = new ThreadPoolExecutor(10,30,60,TimeUnit.MILLISECONDS,new ArrayBlockingQueue<Runnable>(200),new CommonThreadFactory("Slack"), new ThreadPoolExecutor.DiscardPolicy());
private static String MSG_FORMAT ="payload='{'"channel": "{0}", "username": "{1}", "text": "{2}", "icon_emoji": ":ghost:"'}'" ;
/**
* 保存的Webhook URL ，需要初始化
*/
private static String WEBHOOK_URL ;
private static boolean SLACK_ABLE;
public static void setSlackConfig(String webhookUrl){
WEBHOOK_URL = webhookUrl;
SLACK_ABLE = true;
}
/**
* slack异步发消息，保证不能影响到主功能
* @param channel
* @param msg
*/
public static void send(final String channel, final String msg){
if(!SLACK_ABLE){
return;
}
if(StringUtils.isBlank(msg)){
return;
}
executor.submit(new Runnable() {
@Override
public void run() {
try {
SlackUtil.send(channel,sdf.format(System.currentTimeMillis())+" "+msg,MAX_RETRY);
} catch (Exception e) {
logger.log(Level.SEVERE, e.getMessage(), e);
}
}
});
}
/**
* 如果slask发消息失败，会最多尝试发三次，三次都失败，会打印异常信息
* @param channel
* @param msg
* @param retry
* @throws Exception
*/
public static void send(String channel, String msg, int retry) throws Exception {
if(msg.indexOf(""")>=0 ||msg.indexOf("{")>=0 ||msg.indexOf("}")>=0){
msg =msg.replace(""","'").replace("{","[").replace("}","]");
}
String payload = MessageFormat.format(MSG_FORMAT, channel,SEND_USER_NAME,msg);
String result = ConnUtil.getContentByPostWithUrlencode(WEBHOOK_URL,payload);
logger.info("result:"+result);
if(StringUtils.isEmpty(result) ||!result.startsWith("ok")){
--retry;
if(retry>0){
try {
TimeUnit.SECONDS.sleep(retry*5);
} catch (InterruptedException e) {
e.printStackTrace();
}
send(channel,msg,retry);
}else{
throw new Exception("Fail to send slack:"+result+"\nmsg:"+msg);
}
}
}
}package com.yy.common;
import org.apache.http.HttpEntity;
import org.apache.http.HttpResponse;
import org.apache.http.client.HttpClient;
import org.apache.http.client.methods.HttpPost;
import org.apache.http.entity.StringEntity;
import org.apache.http.impl.client.HttpClientBuilder;
import java.io.BufferedReader;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.util.logging.Level;
import java.util.logging.Logger;
/**
* @author ：Max
* @date ：Created in 2022/8/26 下午1:44
* @description：
*/
public class ConnUtil {
private static final Logger logger = Logger.getLogger(ConnUtil.class.getCanonicalName());
public static String getContentByPostWithUrlencode(String url,String msg){
StringEntity entity = new StringEntity(msg, "UTF-8");
entity.setContentEncoding("UTF-8");
entity.setContentType(" application/x-www-form-urlencoded");
HttpClient httpClient = HttpClientBuilder.create().build();
HttpPost request = new HttpPost(url);
request.setEntity(entity);
HttpResponse response = null;
try {
response = httpClient.execute(request);
HttpEntity responseEntity = response.getEntity();
if (responseEntity != null) {
InputStream instream = responseEntity.getContent();
BufferedReader reader = new BufferedReader(new InputStreamReader(instream));
StringBuffer contents = new StringBuffer();
String line = null;
while ((line = reader.readLine()) != null) {
contents.append(line);
contents.append("\n");
}
return contents.toString();
}
} catch (Exception ex) {
logger.log(Level.SEVERE, ex.getMessage(), ex);
}
return null;
}
}package com.yy.test;
import com.yy.common.SlackChannelEnum;
import com.yy.operation.SlackUtil;
import org.junit.Assert;
import org.junit.Test;
import java.util.concurrent.TimeUnit;
/**
* @author ：Max
* @date ：Created in 2022/8/28 下午2:37
* @description：
*/
public class SlackTest {
static {
SlackUtil.setSlackConfig("https://hooks.slack.com/services/*******");
}
@Test
public void test(){
SlackUtil.send(SlackChannelEnum.EXCEPTION.channel,"test ~");
try {
TimeUnit.MINUTES.sleep(1);
} catch (InterruptedException e) {
e.printStackTrace();
}
Assert.assertTrue(true);
}
}发送成功，可以在频道中看到信息
public class LoggerTest {
private static final Logger logger = Logger.getLogger(LoggerTest.class.getCanonicalName());
@Test
public void test() {
try {
int i = 1 / 0;
} catch (Exception e) {
logger.log(Level.SEVERE, e.getMessage(), e);
}
}
}package com.yy.operation;
import com.yy.common.SlackChannelEnum;
import org.apache.commons.lang.StringUtils;
import java.io.PrintWriter;
import java.io.StringWriter;
import java.net.Inet4Address;
import java.net.InetAddress;
import java.text.MessageFormat;
import java.util.logging.Level;
import java.util.logging.LogRecord;
import java.util.logging.Logger;
/**
* @author Max
* @date ：Created in 2022/8/4 下午5:14
* @description：
*/
public class CommonLogger {
private Logger logger;
private CommonLogger(String className) {
logger = Logger.getLogger(className);
}
private static String SERVER;
private static String EXCEPTION_ALARM_FORMAT = "EXCEPTION 发生异常！\n环境 :{0}\n信息 :{1}\n详情 :{2}";
private static String WARNING_ALARM_FORMAT = "WARNING 发生告警！\n环境 :{0}\n信息 :{1}";
private static String SEVERE_ALARM_FORMAT = "SEVERE 发生告警！\n环境 :{0}\n信息 :{1}";
private static String LOG_ALARM_FORMAT = "LOG 发生告警！\n环境 :{0}\n信息 :{1}";
private static String USER_BEHAVIOR_FORMAT = "CUSTOMER \n环境 :{0}\n信息 :{1}";
static {
try{
InetAddress ip4 = Inet4Address.getLocalHost();
SERVER = ip4.getHostAddress();
}catch (Exception e){
SERVER ="undefined server";
}
}
public static CommonLogger getLogger(String name) {
return new CommonLogger(name);
}
/**
* Print exception information, send slack
*
* @param level
* @param msg
* @param e
*/
public void log(Level level, String msg, Throwable e) {
if(StringUtils.isBlank(msg)){
return;
}
msg =dolog(level,msg, e);
msg = MessageFormat.format(EXCEPTION_ALARM_FORMAT, SERVER, formatMsg(msg), getErrmessage(e));
SlackUtil.send(SlackChannelEnum.EXCEPTION.channel, msg);
}
/**
* Print user behavior information, send slack
*
* @param msg
*/
public void userBehaviorInfo(String msg) {
if(StringUtils.isBlank(msg)){
return;
}
msg =dolog(Level.INFO,msg);
msg = MessageFormat.format(USER_BEHAVIOR_FORMAT, SERVER, formatMsg(msg));
SlackUtil.send(SlackChannelEnum.EXCEPTION.channel, msg);
}
public String formatMsg(String msg){
StringBuilder source =new StringBuilder(logger.getName());
msg=transferMsgSource(source,msg);
return source.toString()+" "+msg;
}
/**
* Print warning severe information, send slack
*
* @param msg
*/
public void severe(String msg) {
if(StringUtils.isBlank(msg)){
return;
}
msg = dolog(Level.SEVERE,msg);
msg = MessageFormat.format(SEVERE_ALARM_FORMAT, SERVER, formatMsg(msg));
SlackUtil.send(SlackChannelEnum.EXCEPTION.channel, msg);
}
/**
* Print warning severe information, send slack
*
* @param msg
*/
public void warning(String msg) {
if(StringUtils.isBlank(msg)){
return;
}
msg = dolog(Level.WARNING,msg);
msg = MessageFormat.format(WARNING_ALARM_FORMAT, SERVER, formatMsg(msg));
SlackUtil.send(SlackChannelEnum.EXCEPTION.channel, msg);
}
/**
* Print warning log information, send slack
*
* @param msg
*/
public void log(Level severe, String msg) {
if(StringUtils.isBlank(msg)){
return;
}
msg =dolog(severe,msg);
msg = MessageFormat.format(LOG_ALARM_FORMAT, SERVER, formatMsg(msg));
SlackUtil.send(SlackChannelEnum.EXCEPTION.channel, msg);
}
public static String getErrmessage(Throwable t) {
return getThrowable(t);
}
public void info(String msg) {
dolog(Level.INFO,msg);
}
public void fine(String msg) {
logger.fine(msg);
}
public void setLevel(Level level) {
logger.setLevel(level);
}
public String dolog(Level level, String msg) {
return dolog(level,msg,null);
}
/**
*
* @param level
* @param msg
* @param thrown
* @return msg="["+currentThread.getName()+"] "+a.getMethodName()+" "+msg;
*/
public String dolog(Level level, String msg, Throwable thrown) {
LogRecord lr = new LogRecord(level, msg);
lr.setLevel(level);
if(thrown!=null){
lr.setThrown(thrown);
}
Thread currentThread = Thread.currentThread();
StackTraceElement[] temp=currentThread.getStackTrace();
StackTraceElement a=(StackTraceElement)temp[3];
lr.setThreadID((int) currentThread.getId());
lr.setSourceClassName(logger.getName());
lr.setSourceMethodName(a.getMethodName());
lr.setLoggerName(logger.getName());
logger.log(lr);
return "["+currentThread.getName()+"] "+a.getMethodName()+" "+msg;
}
public static String getThrowable(Throwable e) {
String throwable = "";
if (e != null) {
StringWriter sw = new StringWriter();
PrintWriter pw = new PrintWriter(sw);
pw.println();
e.printStackTrace(pw);
pw.close();
throwable = sw.toString();
}
return throwable;
}
public static String transferMsgSource(StringBuilder source,String msg){
if(msg.indexOf(" ")>0){
String threadName = msg.substring(0,msg.indexOf(" "))+ " ";
msg=msg.substring(threadName.length());
source.insert(0,threadName);
if(msg.indexOf(" ")>0) {
String method = msg.substring(0, msg.indexOf(" "));
source.append( "." + method);
msg = msg.substring(method.length()+1);
}
}
return msg;
}
}package com.yy.operation;
import java.text.MessageFormat;
import java.util.concurrent.ConcurrentHashMap;
import java.util.logging.Level;
import java.util.logging.Logger;
public class LoggerUtil {
private static Logger curLogger = Logger.getLogger(LoggerUtil.class.getCanonicalName());
private static ConcurrentHashMap<String, CommonLogger> loggers = new ConcurrentHashMap<String, CommonLogger>();
public static CommonLogger getLogger(Class<?> clazz) {
String className = clazz.getCanonicalName();
CommonLogger logger = loggers.get(className);
if (logger == null) {
logger = CommonLogger.getLogger(className);
curLogger.fine(MessageFormat.format("Register logger for {0}", className));
loggers.put(className, logger);
}
return logger;
}
}定义日志类时发生改变，调用出的代码无需更改，以较小的代价，集成异常报警功能
public class LoggerTest {
private static final Logger logger = Logger.getLogger(LoggerTest.class.getCanonicalName());
@Test
public void test() {
try {
int i = 1 / 0;
} catch (Exception e) {
logger.log(Level.SEVERE, e.getMessage(), e);
}
}
}测试结果，频道中出现打印的异常信息，方便开发运维人员定位
可以不仅仅实现打印异常日志，也可以打印用户的一些关键行为，如充值等，频道可以设置多个，发送不同主题的消息
可以优化线程池
如果开发人员不能及时查看slack，也可以集成电子邮件，Slack中可以添加mailclark应用（单独收费），经过配置后，发动频道中的信息，可以自动邮件发送给任意邮箱，接受者无需创建slack账号。具体配置可参考链接。
package com.yy.common;
import java.util.concurrent.ThreadFactory;
import java.util.concurrent.atomic.AtomicInteger;
/**
* @author ：Max
* @date ：Created in 2022/8/26 下午1:51
* @description：
*/
public class CommonThreadFactory implements ThreadFactory {
private static final AtomicInteger poolNumber = new AtomicInteger(1);
private final ThreadGroup group;
private final AtomicInteger threadNumber = new AtomicInteger(1);
private final String threadNamePrefix;
private final String nameSpecific;
private final boolean isDaemon;
public CommonThreadFactory(String nameSpecific) {
this(nameSpecifihttps://juejin.cn/post/7136858841756467230#heading-4c, false);
}
public CommonThreadFactory(String nameSpecific, boolean isDaemon) {
SecurityManager s = System.getSecurityManager();
this.group = (s != null) ? s.getThreadGroup() :
Thread.currentThread().getThreadGroup();
this.threadNamePrefix = "eg-pool-" + poolNumber.getAndIncrement() + "-thread";
this.nameSpecific = nameSpecific;
this.isDaemon = isDaemon;
}
@Override
public Thread newThread(Runnable r) {
Thread t = new Thread(group, r, String.format("%s-%d-%s",
this.threadNamePrefix, threadNumber.getAndIncrement(), this.nameSpecific), 0);
t.setDaemon(isDaemon);
t.setPriority(Thread.NORM_PRIORITY);
return t;
}
}public enum SlackChannelEnum {
EXCEPTION("#test-example");
public String channel;
SlackChannelEnum(String channel) {
this.channel = channel;
}
}读到这里，这篇“JAVA基于Slack怎么实现异常日志报警”文章已经介绍完毕，想要掌握这篇文章的知识点还需要大家自己动手实践使用过才能领会，如果想了解更多相关内容的文章，欢迎关注亿速云行业资讯频道。
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