jenkins的最新版本已经不在支持jdk8，支持的jdk环境如下：

1. 安装jdk环境

    yum -y install java-11-openjdk.x86_64 java-11-openjdk-devel.x86_64
   

2. 安装tomcat
   tomcat官网

    cd /opt
    wget https://dlcdn.apache.org/tomcat/tomcat-9/v9.0.82/bin/apache-tomcat-9.0.82.tar.gz
    tar -xvf apache-tomcat-9.0.82.tar.gz
    mv  apache-tomcat-9.0.82  apache-tomcat-jenkins
    rm -rf apache-tomcat-jenkins/webapps/*
   

3. 下载jenkins

    cd /opt/apache-tomcat-jenkins/webapps
    wget https://get.jenkins.io/war-stable/2.414.3/jenkins.war
    mv jenkins.war ROOT.war
   

4. 启动jenkins

     /opt/apache-tomcat-jenkins/bin/startup.sh
   

5. tomcat默认端口是8080，使用ip:8080访问到jenkins
   

6. 修改jenkins默认存储路径
   vim /opt/apache-tomcat-jenkins/bin/catalina.sh
   
   重新启动tomcat即可