SpringBoot+log4j+logstash+Elasticsearch架构的日志分析

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在用SpringBoot做微服务项目时，需要对程序的处理逻辑进行细化分析以及输出分析过程，基于此需求，所以选择采用log4j+logstash+Elasticsearch架构方式存储项目的详细处理业务以及逻辑的过程。具体的做法如下：

第一步：搭建SpringBoot Maven项目，日志收集采用log4j，pom.xml配置如下：

<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion><groupId>media_docment</groupId>
<artifactId>media_docment</artifactId>
<version>1.0</version><properties>
<java.version>1.8</java.version>
<spring.boot.version>1.5.4.RELEASE</spring.boot.version>
</properties><dependencyManagement>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-dependencies</artifactId>
<version>${spring.boot.version}</version>
<type>pom</type>
<scope>import</scope>
</dependency>
</dependencies>
</dependencyManagement><dependencies>
<!--Spring Boot依赖 -->
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
<exclusions>
<exclusion>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-logging</artifactId>
</exclusion>
</exclusions>
</dependency>
<!-- log4j. -->
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-log4j</artifactId>
<version>1.3.8.RELEASE</version>
</dependency>
<!--代码生成器依赖 -->
<dependency>
<groupId>org.freemarker</groupId>
<artifactId>freemarker</artifactId>
<version>2.3.23</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.mybatis.generator</groupId>
<artifactId>mybatis-generator-core</artifactId>
<version>1.3.5</version>
<scope>test</scope>
</dependency><dependency>
<groupId>org.apache.mina</groupId>
<artifactId>mina-core</artifactId>
<version>2.0.16</version>
</dependency>
<!-- https://mvnrepository.com/artifact/org.apache.mina/mina-integration-beans -->
<dependency>
<groupId>org.apache.mina</groupId>
<artifactId>mina-integration-beans</artifactId>
<version>2.0.16</version>
<exclusions>
<exclusion>
<groupId>org.apache.mina</groupId>
<artifactId>mina-core</artifactId>
</exclusion>
</exclusions>
</dependency><!-- https://mvnrepository.com/artifact/tv.cntt/annovention -->
<dependency>
<groupId>tv.cntt</groupId>
<artifactId>annovention</artifactId>
<version>1.2</version>
</dependency><dependency>
<groupId>org.elasticsearch</groupId>
<artifactId>elasticsearch</artifactId>
<version>2.2.0</version>
</dependency></dependencies><build>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
<version>${spring.boot.version}</version>
</plugin>
<plugin>
<artifactId>maven-compiler-plugin</artifactId>
<configuration>
<source>${java.version}</source>
<target>${java.version}</target>
<encoding>UTF-8</encoding>
</configuration>
</plugin>
</plugins>
</build><repositories>
<repository>
<id>aliyun-repos</id>
<url>http://maven.aliyun.com/nexus/content/groups/public/</url>
<snapshots>
<enabled>false</enabled>
</snapshots>
</repository>
</repositories><pluginRepositories>
<pluginRepository>
<id>aliyun-plugin</id>
<url>http://maven.aliyun.com/nexus/content/groups/public/</url>
<snapshots>
<enabled>false</enabled>
</snapshots>
</pluginRepository>
</pluginRepositories></project>

项目中应用log4j的jar包：

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;private static Logger logger = LoggerFactory.getLogger(MediaDocumentApplication.class);
Map<String,String> map=new HashMap<String,String>();logger.info(JSON.toJSONString(map));

map的内容自己添加就行了。

log4j的配置文件内容如下：

# LOG4J  
log4j.rootCategory=INFO,stdout,file,logstash# \u63a7\u5236\u53f0\u8f93\u51fa
log4j.appender.stdout=org.apache.log4j.ConsoleAppender
log4j.appender.stdout.layout=org.apache.log4j.PatternLayout
log4j.appender.stdout.layout.ConversionPattern=%d{yyyy-MM-dd HH:mm:ss,SSS} %5p %c{1}:%L - %m%n# root\u65e5\u5fd7\u8f93\u51fa
log4j.appender.file=org.apache.log4j.RollingFileAppender 
log4j.appender.file.file=logs/media.log
log4j.appender.file.MaxFileSize=10240KB 
log4j.appender.file.MaxBackupIndex=20
log4j.appender.file.layout=org.apache.log4j.PatternLayout 
log4j.appender.file.layout.ConversionPattern=%d{yyyy-MM-dd HH\:mm\:ss,SSS} [%t]  %-5p %c{1} %x - %m%n
log4j.appender.file.append=true# logstash\u65e5\u5fd7\u8f93\u51fa\u5230ES
log4j.appender.logstash=org.apache.log4j.net.SocketAppender
log4j.appender.logstash.port=56789
#log4j.appender.logstash.remoteHost=192.168.10.4
log4j.appender.logstash.remoteHost=117.34.118.31
log4j.appender.Logstash.Threshold=INFO  
log4j.appender.Logstash.ReconnectionDelay=60000  
log4j.appender.Logstash.LocationInfo=true

至此：SpringBoot项目的log4j日志就完成了。

第二步：安装ElasticSearch，本人是Linux上安装调试的，安装过程百度搜索一下或者在本人的博客中查找详细过程，这里不详细写了。然后配置插件，主要的有2个，head和sql插件。配置比较简单，下载相关的程序包，加压到 /usr/local/elasticsearch/plugins路径下即可使用：结果如下所示：

第三步：logstash的安装配置：

下载与ElasticSearch版本一致的logstash版本，解压：然后写配置信息：

input {stdin { }log4j {mode => "server"host  => "192.168.0.77"port => 56789type => "log4j"}
}
filter {json{source => "message"remove_field =>["message"] remove_field =>["priority"] remove_field =>["logger_name"] remove_field =>["thread"] remove_field =>["class"] remove_field =>["file"] remove_field =>["method"] }if([esname]=~ "mid-log" ){}else {drop {}}}
output {elasticsearch {hosts => "192.168.0.77:9200"index => "%{esname}-s-%{+YYYY.MM.dd}"flush_size => 1000 idle_flush_time => 5  }
}

这是本人写的，具体按需求改动：完成之后在logstash根目录下运行启动logstash：