jdk+apache-tomcat+jenkins+maven搭建完成后第一次登陆，
搭建jenkins请查看博客 http://12629984.blog.51cto.com/12619984/1980034
浏览器输入 http://192.168.112.143:8080/
印象里在搭建jenkins的时候并没有设置密码这一项
去JENKINS_HOME/user/admin目录下找到config.xml文件
<hudson.security.HudsonPrivateSecurityRealm_-Details>
<passwordHash>#jbcrypt:$2a$10$tFlvqP57QdsnABEzbdwFI./CUBj4pcfB7St8U2lwEiEn42IGK8nf6</passwordHash>
</hudson.security.HudsonPrivateSecurityRealm_-Details>
修改后==》》
<hudson.security.HudsonPrivateSecurityRealm_-Details>
<passwordHash>#jbcrypt:$2a$10$DdaWzN64JgUtLdvxWIflcuQu2fgrrMSAMabF5TSrGK5nXitqK9ZMS</passwordHash>
</hudson.security.HudsonPrivateSecurityRealm_-Details>
重启jenkins
[root@localhost admin]# service jenkins restart
Shutting down Jenkins [FAILED]
Starting Jenkins [ OK ]
用户名：admin
密码：111111