Gradle构建并自动部署Java Web项目到远程服务器

思路介绍：1）停止对应项目的tomcat服务器 2)删除webapps其下的对应项目文件 3）构建war包并将war包传送到tomcat服务器webapps目录下 4）启动tomcat

一、环境配置

myeclipse2014、tomcat7.0.67（服务器端）、gradle2.14、Buildship2.0（执行gradle任务用，直接在eclipse marketplace中安装即可）、jdk1.7

二、配置build.gradle

关于gradle java web项目的创建可参见myeclipse中创建gradle web项目，主要配置如下：

1）配置ssh插件、提供远程服务器登陆，文件传输，命令执行等支持

apply plugin: 'org.hidetake.ssh'


buildscript{
	repositories {
		jcenter()
     	mavenCentral()
	}
	
	 dependencies {
        classpath 'org.hidetake:gradle-ssh-plugin:2.6.0'
      }
	
}

2）配置远程服务器信息

ssh.settings {
  knownHosts = allowAnyHosts
}

remotes {
  deployServer {
    host = 'xxx.xxx.xxx.xxx'
    user = 'xxx'
    password = 'xxx'
  }
}

3）配置war包及其插件、将java web项目打war用

apply plugin: 'war'


war {
    archiveName 'cloud_server.war'
}

4）配置gradle task、共四个任务：关闭tomcat、删除war包及目录、拷贝文件、启动tomcat，且后者依赖前者

task shutdownTomcat() << {
  ssh.run {
    session(remotes.deployServer) {
      println 'shut down tomcat...' 
      executeScript '''#!/bin/sh
                        cd /opt/app/apache-tomcat-7.0.67/bin
                        ./shutdown.sh
                    '''
    }
  }
}

task del(dependsOn:shutdownTomcat) << {
  ssh.run {
    session(remotes.deployServer) {
      println 'start deleting...' 
      executeScript '''#!/bin/sh
                        rm -rf /opt/app/apache-tomcat-7.0.67/webapps/cloud_server
                        rm -f /opt/app/apache-tomcat-7.0.67/webapps/cloud_server.war
                    '''
    }
  }
}

task copy(dependsOn:del) << {
  ssh.run {
    session(remotes.deployServer) {
      println 'start copying war...' 
      put from: buildDir.toString() + '/libs/cloud_server.war', into: '/opt/app/apache-tomcat-7.0.67/webapps'
    }
  }
}

task deploy(dependsOn:copy) << {
  ssh.run {
    session(remotes.deployServer) {
      println 'start tomcat...' 
      execute '/opt/app/apache-tomcat-7.0.67/bin/startup.sh'
    }
  }

三、执行gradle任务

（一）中说了用buildship可以执行gradle任务

1）调出Gradle Tasks视图

双击deploy，则添加了deploy任务（这个时候就会执行task）

2）配置deploy任务

run as-->external tools configuration

按照上图中配置即可

4）执行该任务

run as----->gradle build

选择上面配置的deploy任务即可，执行过程如下：

[sts] -----------------------------------------------------
[sts] Starting Gradle build for the following tasks: 
[sts]      clean
[sts]      war
[sts]      deploy
[sts] -----------------------------------------------------
:clean
:compileJava
:processResources
:classes
:war
:shutdownTomcat
Host key checking is off. It may be vulnerable to man-in-the-middle attacks.
shut down tomcat...
deployServer#16|Using CATALINA_BASE:   /opt/app/apache-tomcat-7.0.67
deployServer#16|Using CATALINA_HOME:   /opt/app/apache-tomcat-7.0.67
deployServer#16|Using CATALINA_TMPDIR: /opt/app/apache-tomcat-7.0.67/temp
deployServer#16|Using JRE_HOME:        /opt/jdk7
deployServer#16|Using CLASSPATH:       /opt/app/apache-tomcat-7.0.67/bin/bootstrap.jar:/opt/app/apache-tomcat-7.0.67/bin/tomcat-juli.jar
:del
Host key checking is off. It may be vulnerable to man-in-the-middle attacks.
start deleting...
:copy
Host key checking is off. It may be vulnerable to man-in-the-middle attacks.
start copying war...
:deploy
Host key checking is off. It may be vulnerable to man-in-the-middle attacks.
start tomcat...
deployServer#19|Using CATALINA_BASE:   /opt/app/apache-tomcat-7.0.67
deployServer#19|Using CATALINA_HOME:   /opt/app/apache-tomcat-7.0.67
deployServer#19|Using CATALINA_TMPDIR: /opt/app/apache-tomcat-7.0.67/temp
deployServer#19|Using JRE_HOME:        /opt/jdk7
deployServer#19|Using CLASSPATH:       /opt/app/apache-tomcat-7.0.67/bin/bootstrap.jar:/opt/app/apache-tomcat-7.0.67/bin/tomcat-juli.jar
deployServer#19|Tomcat started.

BUILD SUCCESSFUL

Total time: 59.412 secs
[sts] -----------------------------------------------------
[sts] Build finished succesfully!
[sts] Time taken: 1 min, 4 sec
[sts] -----------------------------------------------------

可以看到执行了build.gradle中配置的任务，这时候服务器上war包已经是最新的了，tomcat也已经重启。

参考：http://www.cnblogs.com/chenpi/p/5872313.html