java - 在 Java 中等待 Windows 服务启动/停止？

Question

我正在寻找一种方法来循环检查 Windows 服务的状态，直到它完全停止或启动。

我用了Malik Ehtasham代码 Here获取服务的状态。但我必须不断按下按钮才能获得状态。我希望它一直检查状态说...请稍等...然后说弯腰或开始。

这是我必须启动的服务:

String[] StartSpooler = {"cmd.exe", "/c", "sc", "start", "spooler"};
    try {
        Process process = new ProcessBuilder(StartSpooler).start();
        InputStream inputStream = process.getInputStream();
        InputStreamReader inputStreamReader = new InputStreamReader(inputStream);
        BufferedReader bufferedReader = new BufferedReader(inputStreamReader);
        String StartSpoolerLine;
        while ((StartSpoolerLine= bufferedReader.readLine()) != null) {
            System.out.println(StartSpoolerLine);
        }
    } catch (Exception ex) {
        System.out.println("Exception : " + ex);
    }

这是我必须不断检查服务状态但它不起作用

    try {
        Process p = Runtime.getRuntime().exec("sc query spooler");

        BufferedReader reader = new BufferedReader(new InputStreamReader(p.getInputStream()));

        String line = reader.readLine();
        while (line != null) {
            if (line.trim().startsWith("STATE")) {
                while (!"4".equals(line.trim().substring(line.trim().indexOf(":") + 1, line.trim().indexOf(":") + 4).trim())) {
                   System.out.println("Starting....");    
                 }
System.out.println("Service is started and running");
            }
            line = reader.readLine();
        }

    } catch (IOException e1) {
    } 

请帮忙，谢谢!

Answer 1

我已经使用了您的代码，并且它正在我的窗口机器上运行。请重试。

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;


public class WindowServiceTest {

    public static void main(String[] args) {
        try {
            Process p = Runtime.getRuntime().exec("sc query spooler");

            BufferedReader reader = new BufferedReader(new InputStreamReader(p.getInputStream()));

            String line = reader.readLine();
            while (line != null) {
                if (line.trim().startsWith("STATE")) {
                    while (!"4".equals(line.trim().substring(line.trim().indexOf(":") + 1, line.trim().indexOf(":") + 4).trim())) {
                       System.out.println("Starting....");    
                     }
                      System.out.println("... Service is started and running");
                }
                line = reader.readLine();
                System.out.println("SERVICE DETAILS --> "+ line);
            }

        } catch (IOException e1) {
        } 

    }

}


OUTPUT
===========
SERVICE DETAILS --> SERVICE_NAME: spooler
SERVICE DETAILS -->         TYPE               : 110  WIN32_OWN_PROCESS (interactive)
SERVICE DETAILS -->         STATE              : 4  RUNNING 
... Service is started and running
SERVICE DETAILS -->                                 (STOPPABLE,NOT_PAUSABLE,ACCEPTS_SHUTDOWN)
SERVICE DETAILS -->         WIN32_EXIT_CODE    : 0  (0x0)
SERVICE DETAILS -->         SERVICE_EXIT_CODE  : 0  (0x0)
SERVICE DETAILS -->         CHECKPOINT         : 0x0
SERVICE DETAILS -->         WAIT_HINT          : 0x0
SERVICE DETAILS --> null