本篇内容介绍了“通过jenkins发布java项目到目标主机上的步骤是什么”的有关知识，在实际案例的操作过程中，不少人都会遇到这样的困境，接下来就让小编带领大家学习一下如何处理这些情况吧！希望大家仔细阅读，能够学有所成！
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 rsa
Generating 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.localdomain
The 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 keys
root@192.168.8.131's password:
Number of key(s) added: 1
Now 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
当拉取的代码是私有仓库
测试访问页面
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