在Linux中将Java进程作为服务运行

为了说明,我做了一个简单的Java程序：

package service;

public class JavaService {

    public static void main(String args[]){

        System.out.println("Starting Java-Service");
        while(true){

            try {
                Thread.sleep(5000);
            } catch (InterruptedException e) {
                // TODO Auto-generated catch block
                e.printStackTrace();
            }

            System.out.println("Java-Service is still running..");
        }
    }
}

我震惊了,把它放在这个位置：/ opt / service / lib

然后,我创建了这个脚本：/ opt / service / bin / run_java_service

#!/bin/tcsh
#
# chkconfig: 2345 80 30
# description: java-service Service

setenv JAVA_SERVICE_HOME /opt/service
setenv CLASSPATH $JAVA_SERVICE_HOME/lib/JavaService.jar

setenv SERVICE_PID  `ps aux | grep JavaService | grep -v grep | awk '{print $2}'`;

if ( (stop == $1  || restart == $1)) then
    echo "java-service stop";
    kill -9 $SERVICE_PID
    setenv SERVICE_PID
endif

if ( start == $1 || restart == $1 ) then
    if($SERVICE_PID) then
        echo "java-service is already running"
    else
        echo "java-service start";
        java service.JavaService&
    endif
endif

if (status == $1) then
    if($SERVICE_PID) then
        echo "java-service (pid $SERVICE_PID) is running...";
    else
        echo "java-service is stopped";
    endif
endif

然后我在/etc/rc.d/init.d目录中创建了一个符号链接,并将其添加到chkconfig：

sudo ln –s /opt/service/bin/run_java_service /etc/rc.d/init.d/java-service
sudo chkconfig --add java-service

此时,这样的命令可以从命令行按预期工作：

sudo service java-service stop
sudo service java-service start
sudo service java-service status

问题是“服务配置”对话框中的状态不正确.例如,在此屏幕截图中,我点击了“停止按钮”,它仍显示为“已插入”.

我错过了哪一块拼图？