阿里云日志服务 sdk集成

背景描述：

原来使用log4j 进行日志打印，一天下来，一个文件要跑到200M+,每次都要先下载下来才能查看，很费时间，看了阿里的log服务，可以在线查看，感觉很牛叉，就拿过来用了

集成方法有很多种，我是采用的Log4j Appender 方式，(因为可以在原来的log4j的基础上 引入几个包就可以了，这样还可以自由打印日志，很方便)

1，首先开通日志服务，在日志后台创建项目

2,创建日志库

https://help.aliyun.com/document_detail/29005.html?spm=5176.doc43757.6.554.ZXKKNm

3 引入所需jar包

需要的jar包 获取方法

https://help.aliyun.com/document_detail/43757.html?spm=5176.doc28981.2.27.neLd89

jar包下载下来之后重点看下有没有这个loghub-log4j-appender.jar，我就是没有这个包导致报错，最后找到了客服，要的这个包，客服很给力，服务到位

4，配置log4j.property

基本看这里的配置就好了

https://help.aliyun.com/document_detail/43757.html?spm=5176.doc28981.2.27.neLd89

这个过程中有个坑，明明包引入了，配置里却找不到LoghubAppender 类，于是客服提供了LoghubAppender源码，自己再继承封装了一下

下面是 LoghubAppender源码

package com.xc.utils;import java.text.SimpleDateFormat;import java.util.ArrayList;import java.util.Arrays;import java.util.Date;import java.util.List;import java.util.Map;import java.util.TimeZone;import org.apache.log4j.AppenderSkeleton;import org.apache.log4j.spi.LoggingEvent;import org.apache.log4j.spi.ThrowableInformation;import com.aliyun.openservices.log.common.LogItem;import com.aliyun.openservices.log.producer.LogProducer;import com.aliyun.openservices.log.producer.ProducerConfig;import com.aliyun.openservices.log.producer.ProjectConfig;public class LoghubAppender extends AppenderSkeleton {private ProducerConfig config = new ProducerConfig();private LogProducer producer;private ProjectConfig projectConfig = new ProjectConfig();private String logstore;private String topic = "";private String timeZone = "UTC";private String timeFormat = "yyyy-MM-dd'T'HH:mmZ";private SimpleDateFormat formatter;@Overridepublic void activateOptions() {super.activateOptions();formatter = new SimpleDateFormat(timeFormat);formatter.setTimeZone(TimeZone.getTimeZone(timeZone));producer = new LogProducer(config);producer.setProjectConfig(projectConfig);}public String getTimeFormat() {return timeFormat;}public void setTimeFormat(String timeFormat) {this.timeFormat = timeFormat;formatter = new SimpleDateFormat(timeFormat);formatter.setTimeZone(TimeZone.getTimeZone(timeZone));}public void close() {producer.flush();producer.close();}public boolean requiresLayout() {return false;}public String getLogstore() {return logstore;}public void setLogstore(String logstore) {this.logstore = logstore;}public String getTopic() {return topic;}public void setTopic(String topic) {this.topic = topic;}public String getTimeZone() {return timeZone;}public void setTimeZone(String timeZone) {this.timeZone = timeZone;formatter = new SimpleDateFormat(timeFormat);formatter.setTimeZone(TimeZone.getTimeZone(timeZone));}@Overrideprotected void append(LoggingEvent event) {List<LogItem> logItems = new ArrayList<LogItem>();LogItem item = new LogItem();logItems.add(item);item.SetTime((int) (event.getTimeStamp() / 1000));item.PushBack("time", formatter.format(new Date(event.getTimeStamp())));item.PushBack("level", event.getLevel().toString());item.PushBack("thread", event.getThreadName());item.PushBack("location",event.getLocationInformation().fullInfo.toString());String message = event.getMessage().toString();ThrowableInformation throwable = event.getThrowableInformation();if(throwable != null){for(String s: throwable.getThrowableStrRep()){message += System.lineSeparator() + s;}}item.PushBack("message", message);Map properties = event.getProperties();if (properties.size() > 0) {Object[] keys = properties.keySet().toArray();Arrays.sort(keys);for (int i = 0; i < keys.length; i++) {item.PushBack(keys[i].toString(), properties.get(keys[i]).toString());}}producer.send(projectConfig.projectName, logstore, topic, null,logItems);}public String getProjectName() {return projectConfig.projectName;}public void setProjectName(String projectName) {projectConfig.projectName = projectName;}public String getEndpoint() {return projectConfig.endpoint;}public void setEndpoint(String endpoint) {projectConfig.endpoint = endpoint;}public String getAccessKeyId() {return projectConfig.accessKeyId;}public void setAccessKeyId(String accessKeyId) {projectConfig.accessKeyId = accessKeyId;}public String getAccessKey() {return projectConfig.accessKey;}public void setAccessKey(String accessKey) {projectConfig.accessKey = accessKey;}public String getStsToken() {return projectConfig.stsToken;}public void setStsToken(String stsToken) {projectConfig.stsToken = stsToken;}public int getPackageTimeoutInMS() {return config.packageTimeoutInMS;}public void setPackageTimeoutInMS(int packageTimeoutInMS) {config.packageTimeoutInMS = packageTimeoutInMS;}public int getLogsCountPerPackage() {return config.logsCountPerPackage;}public void setLogsCountPerPackage(int logsCountPerPackage) {config.logsCountPerPackage = logsCountPerPackage;}public int getLogsBytesPerPackage() {return config.logsBytesPerPackage;}public void setLogsBytesPerPackage(int logsBytesPerPackage) {config.logsBytesPerPackage = logsBytesPerPackage;}public int getMemPoolSizeInByte() {return config.memPoolSizeInByte;}public void setMemPoolSizeInByte(int memPoolSizeInByte) {config.memPoolSizeInByte = memPoolSizeInByte;}public int getIoThreadsCount() {return config.maxIOThreadSizeInPool;}public void setIoThreadsCount(int ioThreadsCount) {config.maxIOThreadSizeInPool = ioThreadsCount;}public int getShardHashUpdateIntervalInMS() {return config.shardHashUpdateIntervalInMS;}public void setShardHashUpdateIntervalInMS(int shardHashUpdateIntervalInMS) {config.shardHashUpdateIntervalInMS = shardHashUpdateIntervalInMS;}public int getRetryTimes() {return config.retryTimes;}public void setRetryTimes(int retryTimes) {config.retryTimes = retryTimes;}}

然后 写了个LogUTils工具类(其实配置文件中可以直接使用 LoghubAppender的 ，只是项目中使用了日志唯一入口——自己原来封装的logUtils继承自DaliRolling，做了分级别打印，为了偷懒就直接改了继承LoghubAppender)

就这么简单，最后到阿里日志控制台查看，有了

程序员常用网址收藏管理——666导航网