使用Apache Commons Daemon从Java App启动Windows服务时,系统无法找到指定的文件

时间:2016-04-16 20:05:15

标签: java apache-commons-daemon

我从Eclipse获得了以下用于Java应用程序的文件结构,我使用Apache Commons Daemon将其转换为Windows服务。

SubscriberACD
    /Maven Dependencies
    /src/main/java
        /org.SubscriberACD
            /Subscriber.java
    /src/test/java
    /JRE System Librar
    /src
    /target
    config.xml
    pom.xml

在Subscriber.java中,这里是定义字符串的地方:

    private static final String CONFIG_FILE = "config.xml";

以下是从xml文件中读取的代码段(基于以下帖子:Java: How to read and write xml files?):

   Document document;
   DocumentBuilderFactory doc_builder_factory = DocumentBuilderFactory.newInstance();

   try {
       DocumentBuilder doc_builder = doc_builder_factory.newDocumentBuilder();
       document = doc_builder.parse(CONFIG_FILE);

我的服务文件目录如下所示:

E:\SubscriberACD
     \bin
        \subscriberACD.exe
        \subscriberACDw.exe
     \classes
        \org
           \SubscriberACD
               \Subscriber.class
               \config.xml
        \3rdpartyjarfiles
        \SubscriberACD.jar
     \logs

请注意我是如何在类下的SubscriberACD下粘贴config.xml来试试的。但它没有用。另外值得注意的是,我还将我的项目导出为SubscriberACD.jar并将其放在\ classes文件夹下。从eclipse开始,看起来config.xml也被打包在那个jar中。当我尝试启动Windows服务时出现以下错误:

2016-04-16 15:08:27 Commons Daemon procrun stderr initialized
Exception in thread "main" n\config.xml (The system cannot find the file specified)
java.lang.NumberFormatException: For input string: "null"
    at java.lang.NumberFormatException.forInputString(NumberFormatException.java:65)
    at java.lang.Integer.parseInt(Integer.java:492)
    at java.lang.Integer.parseInt(Integer.java:527)
    at zmq.TcpAddress.resolve(TcpAddress.java:105)
    at zmq.Address.resolve(Address.java:98)
    at zmq.SocketBase.connect(SocketBase.java:510)
    at org.zeromq.ZMQ$Socket.connect(ZMQ.java:1246)
    at org.SubscriberACD.Subscriber.start(Subscriber.java:114)
    at org.SubscriberACD.Subscriber.windowsService(Subscriber.java:61)

我错过了一些额外的配置吗?

2 个答案:

答案 0 :(得分:1)

试试这个: 将文件config.xml直接放入classes文件夹:

E:\SubscriberACD\classes\config.xml

然后在Subscriber.java中尝试加载这样的文件:

Document document;
DocumentBuilderFactory doc_builder_factory = DocumentBuilderFactory.newInstance();
try {
    DocumentBuilder doc_builder = doc_builder_factory.newDocumentBuilder();
    try(InputStream instream = Thread.currentThread().getContextClassLoader().getResourceAsStream("config.xml")) {
        document = doc_builder.parse(instream);
    }
} catch(SAXException | ParserConfigurationException e) {
    throw new RuntimeException(e);
}

答案 1 :(得分:0)

(Eclipse)创建一个源文件夹并将“config.xml”粘贴到其中。

InputStream is = getClass().getClassLoader().getResourceAsStream("config.xml");

使用进行解析是(InputStream)