无法运行用户服务。例外：无法启动Java，ServiceStart返回4 [英] Unable to run user service. Exception: Failed to start Java, ServiceStart returned 4

问题描述

我使用 http教程创建了一项服务：//web.archive.org/web/20090228071059/http：//blog.platinumsolutions.com/node/234

我创建的文件为下面：

C:\MyService1

\bin
    \myService1.exe
    \myService1w.exe
\classes
    \com\services\MyService1.class
    \HelloWorld.jar
\logs

现在，当我执行myService1.exe时，服务还没有开始。
我在日志中收到消息

Now when I execute myService1.exe, service is not getting started. I am getting below message in my log

[2015-06-02 15:23:29] [info]  [ 3968] Commons Daemon procrun (1.0.15.0 32-bit) started
[2015-06-02 15:23:29] [info]  [ 3968] Running 'MyService1' Service...
[2015-06-02 15:23:29] [info]  [ 4204] Starting service...
[2015-06-02 15:23:29] [error] [ 5372] FindClass com/services/MyService1 failed
[2015-06-02 15:23:29] [error] [ 4204] Failed to start Java
[2015-06-02 15:23:29] [error] [ 4204] ServiceStart returned 4
[2015-06-02 15:23:29] [info]  [ 3968] Run service finished.
[2015-06-02 15:23:29] [info]  [ 3968] Commons Daemon procrun finished

在我的stderror文件中，报告如下：

In my stderror file, below is reported:

2015-06-02 15:23:29 Commons Daemon procrun stderr initialized
java.lang.NoClassDefFoundError: com/services/MyService1 (wrong name: services/MyService1)
at java.lang.ClassLoader.defineClass1(Native Method)
at java.lang.ClassLoader.defineClass(Unknown Source)
at java.security.SecureClassLoader.defineClass(Unknown Source)
at java.net.URLClassLoader.defineClass(Unknown Source)
at java.net.URLClassLoader.access$100(Unknown Source)
at java.net.URLClassLoader$1.run(Unknown Source)
at java.net.URLClassLoader$1.run(Unknown Source)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
at sun.misc.Launcher$AppClassLoader.loadClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
Exception in thread "main" 

我的环境变量如下：

 CLASSPATH: .;%JAVA_HOME%\jre\lib;
 JAVA_HOME: C:\Program Files\Java\jdk1.7.0;
 Path: %JAVA_HOME%\bin;

当我查看事件查看器时，我得到：

When I check Event Viewer, I get:

MyService1服务因服务特定错误而终止系统无法打开文件。

The MyService1 service terminated with service-specific error The system cannot open the file.

I搜索了很多服务程序实际应该包含但没有运气的信息。

I searched a lot for what a service program should actually contain but no luck.

推荐答案

我做了以下更改以使我的服务成功运行。

I made bellow changes to make my service work successfully.

文件夹结构：

C:\MyService1
    \myService1.exe
    \myService1w.exe
    \MyService1.class
    \HelloWorld.jar
    \logs

Java类（守护程序类）：

Java Class (Daemon Class):

• 创建默认包中的java类


• 该类有两个静态方法：start（）和stop（）


• start（）应该有一个无限循环

以下是我班级的片段。

static boolean isRunning = true;
static boolean isJobsRunning = false;

@SuppressWarnings("static-access")
public static void start(String []args) {
    String command = "run.bat";
    System.out.println("Started JobServices successfully");
    while(isRunning){
        if(!isJobsRunning) { //the job should run only once after the service is started
            try {
                System.out.println("Running batch file");
                Runtime.getRuntime().exec(command);
                isJobsRunning = true;
                System.out.println("Executed batch file successfully");
            } catch (IOException e) {
                System.err.println("Unable to execute Jobs jar");
                e.printStackTrace();
            }
        }
    }
    System.out.println("Completed JobService");

}

public static void stop(String args[]) {
     if(!isRunning) 
         return;

     isRunning = false;
     System.out.println("JobService Stopped successfully");
}

帮助我使我的服务处于运行状态的链接： http://developeriq.in/articles/2012/ may / 01 / transformationing-java-programs-into-windows-services-u /

Link that helped me to get my service in running state: http://developeriq.in/articles/2012/may/01/transforming-java-programs-into-windows-services-u/

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