Question

我编写了一个简单的java程序，每隔几秒打印一次，无限while循环，Thread.sleep()。像java -jar ScheduledTask.jar那样运行它会产生预期的打印到文件。我按照建议HERE包装了jar，将其放在/etc/init.d/test1中，test1是我的包装文件，然后运行sudo chmod +x /etc/init.d/test1。

test1显示在service --status-all列表

中

然而，当我运行sudo service test1 start时，它不会进行打印。我可以提供java代码，但它所做的只是打印到文件。日志文件位于/usr/local/test1/test.log

系统是具有root权限的Debian 8（在AWS上）。一切都是通过终端（putty）完成的。

有什么不对？

打包机：

#!/bin/sh
SERVICE_NAME=test1
PATH_TO_JAR=/usr/local/test1/ScheduledTask.jar
PID_PATH_NAME=/tmp/test1-pid
case $1 in
    start)
        echo "Starting $SERVICE_NAME ..."
        if [ ! -f $PID_PATH_NAME ]; then
            nohup java -jar $PATH_TO_JAR /tmp 2>> /dev/null >> /dev/null &
                        echo $! > $PID_PATH_NAME
            echo "$SERVICE_NAME started ..."
        else
            echo "$SERVICE_NAME is already running ..."
        fi
    ;;
    stop)
        if [ -f $PID_PATH_NAME ]; then
            PID=$(cat $PID_PATH_NAME);
            echo "$SERVICE_NAME stoping ..."
            kill $PID;
            echo "$SERVICE_NAME stopped ..."
            rm $PID_PATH_NAME
        else
            echo "$SERVICE_NAME is not running ..."
        fi
    ;;
    restart)
        if [ -f $PID_PATH_NAME ]; then
            PID=$(cat $PID_PATH_NAME);
            echo "$SERVICE_NAME stopping ...";
            kill $PID;
            echo "$SERVICE_NAME stopped ...";
            rm $PID_PATH_NAME
            echo "$SERVICE_NAME starting ..."
            nohup java -jar $PATH_TO_JAR /tmp 2>> /dev/null >> /dev/null &
                        echo $! > $PID_PATH_NAME
            echo "$SERVICE_NAME started ..."
        else
            echo "$SERVICE_NAME is not running ..."
        fi
    ;;
esac

Java代码：

public class BaseServiceEngine {

    public static void main(String args[]) {
        System.out.println("program started");
        FileWriter fw = null;
        BufferedWriter bw = null;
        PrintWriter writer = null;
        String filePath = "/usr/local/test1/test.log";
        String osname = System.getProperty("os.name", "").toLowerCase();
        if (osname.startsWith("windows")) {
            filePath = "C:\\Development\\VS2012\\TFS\\ProjectCX\\WorkSpace.Alex.Main\\ProxyServers\\ProxyConfigurationService\\test.log";
        } else if (osname.startsWith("linux")) {
            filePath = "/usr/local/test1/test.log";
        } else {
            System.out.println("Sorry, failed to locate file");
            return;
        }
        File logFile = new File(filePath);
        try {
            logFile.createNewFile();
            fw = new FileWriter(filePath, true);
            bw = new BufferedWriter(fw);
            writer = new PrintWriter(bw);
            writer.println("Service started: " + new Date());
            final int runEveryXMillisecond = 20000;

            int i = 0;
            boolean runService = true;
            Date startTime = new Date();
            System.out.println("starting to print to filePath");
            while (runService) {
                Thread.sleep(2500);
                if (new Date().getTime() - startTime.getTime() >= runEveryXMillisecond) {
                    writer.println("Process run");
                }
                Date now = new Date();
                writer.println("service Time :" + now + "__loop:" + i++);
                writer.flush();
            }
        } catch (IOException | InterruptedException ex) {
            System.out.println(ex.getCause());
        } finally {
            try {
                writer.close();
                bw.close();
                fw.close();
            } catch (IOException | NullPointerException ex) {  }
        }
        System.exit(0);
        System.out.println("Exiting");
    }
}

sudo service test1 status返回：

test1.service - （null）已加载：已加载（/etc/init.d/test1）
  活跃：自2016年11月15日星期三09:55:23 UTC开始活跃（正在运行）; 1分0秒   前进程序：26062 ExecStart = / etc / init.d / test1 start（code = exited，   status = 0 / SUCCESS）CGroup：/system.slice/test1.service              └─26063java-jar /usr/local/test1/ScheduledTask.jar / tmp

5月11日09:55:23 ip-10-0-0-115 test1 [26062]：开始测试1 ... 5月11日   09:55:23 ip-10-0-0-115 test1 [26062]：test1开始... 5月11日09:55:23   ip-10-0-0-115 systemd 1：已启动（null）。

Debian基本守护进程无效

0 个答案: