通过jenkins发布java项目到目标主机上的详细步骤通过jenkins发布java项目到目标主

发布java项目的步骤：

拉取代码并打包
mvn clean package
备份目标服务器上已有的要发布项目
将包传到目标服务器的webapss目录中
需做免密登录
重启目标服务器的tomcat服务
修改项目的配置
重启目标服务器的tomcat服务

项目要求:
两台主机上分别安装jenkins，tomcat
jenkins主机上操作

#两台主机做免密登录[root@localhost ~]# ssh-keygen -t rsaGenerating public/private rsa key pair.Enter file in which to save the key (/root/.ssh/id_rsa): Created directory '/root/.ssh'.Enter passphrase (empty for no passphrase): Enter same passphrase again: Your identification has been saved in /root/.ssh/id_rsa.Your public key has been saved in /root/.ssh/id_rsa.pub.The key fingerprint is:SHA256:0zPiM+3ypvmYPisJbeL8LhA2QApiAVqwF9C+gyASonU root@localhost.localdomainThe key's randomart image is:+---[RSA 3072]----+|OB+||Xoo.E||*=..||=.=.||+o + .S +||. + o o. + o||= + .+ .||+ o oB.||+ooBO+|+----[SHA256]-----+[root@localhost ~]# ssh-copy-id root@192.168.8.131/usr/bin/ssh-copy-id: INFO: Source of key(s) to be installed: "/root/.ssh/id_rsa.pub"The authenticity of host '192.168.8.131 (192.168.8.131)' can't be established.ECDSA key fingerprint is SHA256:WbxvLgdwExwRlMT4gaAC1bVyIovZnAwwX1DX8dv6Rs0.Are you sure you want to continue connecting (yes/no/[fingerprint])? yes/usr/bin/ssh-copy-id: INFO: attempting to log in with the new key(s), to filter out any that are already installed/usr/bin/ssh-copy-id: INFO: 1 key(s) remain to be installed -- if you are prompted now it is to install the new keysroot@192.168.8.131's password: Number of key(s) added: 1Now try logging into the machine, with:"ssh 'root@192.168.8.131'"and check to make sure that only the key(s) you wanted were added.#安装软件[root@localhost ~]# yum -y install git maven

新建项目拉取代码链接：https://gitee.com/neawalke/tomcat-java-demo.git