1.安裝java
[root@nginx02 ~]# yum -y install java
2.安裝tomcat
[root@nginx02 ~]# mkdir /data
[root@nginx02 ~]# tar xf apache-tomcat-8.5.53.tar.gz -C /data
[root@nginx02 /data]# cd /data/
[root@nginx02 /data]# mv apache-tomcat-8.5.53 tomcat
3.啟動(dòng)tomcat
[root@nginx02 /tomcat]# ./bin/startup.sh
Using CATALINA_BASE: /data/apache-tomcat-8.5.53
Using CATALINA_HOME: /data/apache-tomcat-8.5.53
Using CATALINA_TMPDIR: /data/apache-tomcat-8.5.53/temp
Using JRE_HOME: /usr
Using CLASSPATH: /data/apache-tomcat-8.5.53/bin/bootstrap.jar:/data/apache-tomcat-8.5.53/bin/tomcat-juli.jar
Tomcat started.
4.訪問tomcat

1.2.修改tomcat配置文件支持json格式日志輸出

1.修改配置
[root@nginx02 /data/tomcat]# vim conf/server.xml
<Valve className="org.apache.catalina.valves.AccessLogValve" directory="logs"
prefix="localhost_access_log" suffix=".txt"
pattern="{"clientip":"%h","ClientUser":"%l","authenticated":"%u","AccessTime":"%t","method":"%r","status":"%s","SendBytes":"%b","Query?string":"%q","partner":"%{Referer}i","AgentVersion":"%{User-Agent}i"}"/>
2.重啟
[root@nginx02 /data/tomcat]# ./bin/startup.sh
Using CATALINA_BASE: /data/apache-tomcat-8.5.53
Using CATALINA_HOME: /data/apache-tomcat-8.5.53
Using CATALINA_TMPDIR: /data/apache-tomcat-8.5.53/temp
Using JRE_HOME: /usr
Using CLASSPATH: /data/apache-tomcat-8.5.53/bin/bootstrap.jar:/data/apache-tomcat-8.5.53/bin/tomcat-juli.jar
Tomcat started.

1.3.查看tomcat日志

tomcat日志位于logs文件夾

最主要的就是catalina.out和localhost_access_log這兩個(gè)日志

剛剛修改完支持json格式后，只是對(duì)訪問日志生效

已經(jīng)是json格式的日志了

json解析工具也是可以解析的

2.配置filebeat收集tomcat日志

www.elastic.co/guide/en/be…

2.1.配置filebeat收集tomcat日志

vim小技巧，在輸入模式使用ctrl+p既可以補(bǔ)全單詞，在命令模式要?jiǎng)h除""之間的內(nèi)容，可以使用d+i+"即可刪除

1.配置filebeat收集tomcat日志
[root@nginx02 ~]# vim /etc/filebeat/filebeat.yml
filebeat.inputs:
- type: log
  enabled: true
  paths:
    - /data/tomcat/logs/localhost_access_log.*			#localhost_access_log日志要寫成通配符的形式，因?yàn)檫@個(gè)日志每天都會(huì)生成一份
  json.keys_under_root: true
  json.overwrite_keys: true
  tags: ["tomcat"]
output.elasticsearch:
  hosts: ["192.168.81.210:9200"]gg
    - index: "tomcat-access-%{+yyyy.MM.dd}"
      when.contains:
        tags: "tomcat"
2.重啟filebeat
[root@nginx02 ~]# systemctl restart filebeat

2.2.使用ab壓測(cè)工具生成1000行tomcat日志

[root@nginx02 ~]# yum -y intsall httpd-tools
[root@nginx02 ~]# ab -c 100 -n 1000 http://127.0.0.1:8080/
[root@nginx02 ~]# wc -l /data/tomcat/logs/localhost_access_log.2021-01-20.txt 
1000 /data/tomcat/logs/localhost_access_log.2021-01-20.txt