JAVA基础应用——java程序在centos后台运行

方法1 使用nohup命令

nohup java -jar test.jar >/dev/null &

方法2 使用JavaServiceWrapper

Java Service Wrapper把java程序打包为服务。目前支持4种打包方式。

• WrapperSimpleApp
  使用WrapperSimpleApp helper class来运行程序。
• WrapperStartStopApp
  使用WrapperStartStopApp helper class
• WrapperListener
  建一个类implements the WrapperListener interface
• WrapperJarApp
  使用WrapperJarApp helper class

几种方式的具体描述，参见这里：
https://wrapper.tanukisoftware.com/doc/english/integrate.html

1. 类要implements Runnable

public class myclass implements Runnable{    public myclass() {              // register a shutdown hook for this class.              // a shutdown hook is an initialzed but not started thread, which will get up and run              // when the JVM is about to exit. this is used for short clean up tasks.              Runtime.getRuntime().addShutdownHook(new Thread(this));              System.out.println(">>> shutdown hook registered");       }}

2. 进程结束时运行的程序写在这里

  public void run() {           //结束进程时运行这里  }   

3. 创建4个目录

mkdir -p /home/ftpuser/testapp/binmkdir -p /home/ftpuser/testapp/confmkdir -p /home/ftpuser/testapp/logsmkdir -p /home/ftpuser/testapp/libmkdir -p /home/ftpuser/testapp/classescp -r testapp.jar /home/ftpuser/testapp/classes/cd /home/ftpuserwget http://wrapper.tanukisoftware.com/download/3.5.25/wrapper-linux-x86-64-3.5.25.tar.gztar -zxvf wrapper-linux-x86-64-3.5.25.tar.gzcd wrapper-linux-x86-64-3.5.25cp bin/wrapper /home/ftpuser/testapp/bin/cp src/bin/sh.script.in /home/ftpuser/testapp/bin/cp lib/* /home/ftpuser/testapp/lib/cp conf/wrapper.conf /home/ftpuser/testapp/conf/

4. 修改 wrapper.conf

修改主类名wrapper.java.mainclass=org.tanukisoftware.wrapper.WrapperSimpleApp修改classpathwrapper.java.classpath.1=../lib/wrapper.jarwrapper.java.classpath.2=../classes/testapp.jar示例：![这里写图片描述](http://img.blog.csdn.net/20151221132546877)入口类wrapper.app.parameter.1=com.whirlpool.CloudWaher

5. 修改testapp-service

cd bin
cp sh.script.in testapp-service

APP_NAME="你的APP名字简写"APP_LONG_NAME="你的APP全名"下面加一行basedir=/home/ftpuser/testapp修改下面两句WRAPPER_CMD="$basedir/bin/wrapper"WRAPPER_CONF="$basedir/conf/wrapper.conf"chmod +x smart-service

测试

./testapp console

6.创建软链接

sudo ln -s /home/ftpuser/testapp/bin/testapp-service /etc/init.d/testapp-service

设置开机启动

/sbin/chkconfig --del testapp-service/sbin/chkconfig --add testapp-service  # 保证能开机启动

启动：

/etc/init.d/testapp-service start或service testapp-service start

配置文件更多参考：
http://www.tuicool.com/articles/jqMv2q