Question

我通过远程运行Java Web Start应用程序遇到了问题。在本地运行时，不存在这种问题。问题是，jar文件未部署到本地临时文件夹（正确部署了jnlp文件），因此将FileNotFound异常抛出到Java控制台。

有人可以帮忙吗？

的index.html：

<body>
<!-- ... -->
<script src=
  "http://www.java.com/js/deployJava.js"></script>
<script>
    // using JavaScript to get location of JNLP
    // file relative to HTML page
    var dir = location.href.substring(0,
        location.href.lastIndexOf('/')+1);
    var url = dir + "myapp.jnlp";
    deployJava.createWebStartLaunchButton(url, '1.6.0');
</script>
<!-- ... -->

jnlp文件：

<?xml version="1.0" encoding="UTF-8"?>
<jnlp spec="1.0+" codebase="" href="">
<information>
    <title>mytitle</title>
    <vendor>mycompany</vendor>
    <offline-allowed/>
</information>
<resources>
    <!-- Application Resources -->
    <j2se version="1.6+" href=
       "http://java.sun.com/products/autodl/j2se"/>
    <jar href="myapp.jar"
        main="true" />

</resources>
<application-desc
     name="My Application">
 </application-desc>
 <update check="background"/>

Java控制台抛出：例外：

com.sun.deploy.net.FailedDownloadException: Unable to load resource: file:/C:/DOCUME~1/myhome/LOCALS~1/Temp/myapp.jar
at com.sun.deploy.net.DownloadEngine.actionDownload(Unknown Source)
at com.sun.deploy.net.DownloadEngine.getCacheEntry(Unknown Source)
at com.sun.deploy.net.DownloadEngine.getCacheEntry(Unknown Source)
at com.sun.deploy.net.DownloadEngine.getResourceCacheEntry(Unknown Source)
at com.sun.deploy.net.DownloadEngine.getResourceCacheEntry(Unknown Source)
at com.sun.deploy.net.DownloadEngine.getResource(Unknown Source)
at com.sun.javaws.LaunchDownload$DownloadTask.call(Unknown Source)
at java.util.concurrent.FutureTask$Sync.innerRun(Unknown Source)
at java.util.concurrent.FutureTask.run(Unknown Source)
at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(Unknown Source)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
at java.lang.Thread.run(Unknown Source)

包装异常：

java.io.FileNotFoundException: C:\DOCUME~1\myhome\LOCALS~1\Temp\myapp.jar (The system cannot find the file specified)
at java.io.FileInputStream.open(Native Method)
at java.io.FileInputStream.<init>(Unknown Source)
at java.io.FileInputStream.<init>(Unknown Source)
at sun.net.www.protocol.file.FileURLConnection.connect(Unknown Source)
at com.sun.deploy.net.BasicHttpRequest.doRequest(Unknown Source)
at com.sun.deploy.net.BasicHttpRequest.doRequest(Unknown Source)
at com.sun.deploy.net.BasicHttpRequest.doGetRequest(Unknown Source)
at com.sun.deploy.net.DownloadEngine.actionDownload(Unknown Source)
at com.sun.deploy.net.DownloadEngine.getCacheEntry(Unknown Source)
at com.sun.deploy.net.DownloadEngine.getCacheEntry(Unknown Source)
at com.sun.deploy.net.DownloadEngine.getResourceCacheEntry(Unknown Source)
at com.sun.deploy.net.DownloadEngine.getResourceCacheEntry(Unknown Source)
at com.sun.deploy.net.DownloadEngine.getResource(Unknown Source)
at com.sun.javaws.LaunchDownload$DownloadTask.call(Unknown Source)
at java.util.concurrent.FutureTask$Sync.innerRun(Unknown Source)
at java.util.concurrent.FutureTask.run(Unknown Source)
at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(Unknown Source)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
at java.lang.Thread.run(Unknown Source)

Answer 1

您必须为href和codebase指定正确的值，以便Java Web Start正常工作。原因是启动程序可以选择在给定JNLP脚本的缓存副本的情况下调用新的JVM，而不与原始脚本相关联。

通过远程访问找不到java web start jar文件

1 个答案: