Java Web Start 应用程序无法从快捷方式更新 [英] Java Web Start app fails to update from a shortcut

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问题描述

我已经使用 Java Web Start 部署了一个 Java(FX) 桌面应用程序.更新工作正常，但仅当我手动运行下载的 JNLP 时，它们无法从安装到桌面和菜单的快捷方式运行.

I have deployed a Java(FX) desktop app using Java Web Start. The updates work fine but only if I run the downloaded JNLP by hand, they do not work from shortcuts installed to desktop and menu.

这是我的 JNLP:

<?xml version="1.0" encoding="utf-8"?>
<jnlp codebase="http://192.168.1.85/deploy/" spec="1.0" xmlns:jfx="http://javafx.com" href="Companyapp.jnlp">

    <information>

        <title>Companyapp</title>
        <vendor>Media Citizens</vendor>
        <description>Companyapp Presentation Desktop</description>
        <homepage href="http://192.168.1.85/deploy/"/>

        <offline-allowed/>

        <shortcut online="false" install="true">
            <desktop />
            <menu submenu="Companyapp"/>
        </shortcut>

        <icon kind="shortcut"   href="http://192.168.1.85/deploy/icons/32x32.gif"           width="32"      height="32"     />
        <icon kind="shortcut"   href="http://192.168.1.85/deploy/icons/64x64.gif"           width="64"      height="64"     />
        <icon kind="splash"     href="http://192.168.1.85/deploy/icons/splash_screen.jpg"   width="1024"    height="768"    />
    </information>

    <update check="always" policy="always" />

    <security>
        <all-permissions/>
    </security>

    <resources>
        <jfx:javafx-runtime version="2.2+" href="http://javadl.sun.com/webapps/download/GetFile/javafx-latest/windows-i586/javafx2.jnlp"/>
    </resources>

    <resources>
        <j2se version="1.6+" href="http://java.sun.com/products/autodl/j2se"/>

        <jar href="http://192.168.1.85/deploy/Companyapp.jar" main="true"                                   download="eager"    />
        <jar href="http://192.168.1.85/deploy/libs/async-http-client-1.7.8.jar"             size="477791"   download="eager"    />
        <jar href="http://192.168.1.85/deploy/libs/commons-codec-1.7.jar"                       size="259600"   download="eager"    />
        <jar href="http://192.168.1.85/deploy/libs/commons-io-2.4.jar"                          size="185140"   download="eager"    />
        <jar href="http://192.168.1.85/deploy/libs/commons-lang3-3.1.jar"                       size="315805"   download="eager"    />
        <jar href="http://192.168.1.85/deploy/libs/commons-logging-1.1.jar"                 size="52915"    download="eager"    />
        <jar href="http://192.168.1.85/deploy/libs/json-simple-1.1.1.jar"                       size="23737"    download="eager"    />
        <jar href="http://192.168.1.85/deploy/libs/slf4j-api-1.7.2.jar"                     size="26083"    download="eager"    />
        <jar href="http://192.168.1.85/deploy/libs/sqlite-jdbc-3.7.15-SNAPSHOT.jar"         size="3702257"  download="eager"    />
        <jar href="http://192.168.1.85/deploy/libs/ws-commons-util-1.0.2.jar"                   size="34407"    download="eager"    />
        <jar href="http://192.168.1.85/deploy/libs/xmlrpc-client-3.1.3.jar"                 size="58573"    download="eager"    />
        <jar href="http://192.168.1.85/deploy/libs/xmlrpc-common-3.1.3.jar"                 size="109131"   download="eager"    />
        <jar href="http://192.168.1.85/deploy/libs/zt-zip-1.5.jar"                              size="33059"    download="eager"    />
        <jar href="http://192.168.1.85/deploy/libs/javaws.jar"                                  size="893738"   download="eager"    />
    </resources>

    <jfx:javafx-desc  width="0" height="0" main-class="com.mediacitizens.companyapp.presentation.desktop.Main"  name="Company App" />
    <application-desc main-class="com.mediacitizens.companyapp.presentation.desktop.Main" />
</jnlp>

以防万一，这是我安装快捷方式的程序部分:

Just in case, here is the part of my program that installs the shortcuts:

// install shortcuts
try
{
    IntegrationService is = null;
    try
    {
        is = (IntegrationService) ServiceManager.lookup("javax.jnlp.IntegrationService");
    }
    catch (UnavailableServiceException use)
    {
        throw new ApplicationError(use.getLocalizedMessage());
    }

    if (!is.hasDesktopShortcut())
    {
        if (!is.requestShortcut(true, true, "Companyapp"))
        {
            throw new ApplicationError("Integration failed.");
        }
    }
    else
    {
        //initialController.dialog("Shortcuts exist", "Go away!", null);
    }
}
catch (ApplicationError e)
{
    initialController.dialog("Failed to integrate a shortcut on your computer.\nCause: " + e.getLocalizedMessage(), "I understand", null);
}

<小时>

更新 1

我删除了 <offline-allowed/> 现在它从快捷方式更新，但我无法离线启动应用程序.所以显然我应该能够?它给了我这个错误:

Update 1

I removed <offline-allowed /> and now it updates from a shortcut but I can't start the application offline. So apparently I should be able to? Its giving me this error:

公平地说，我确实尝试在启动时连接到服务器，但这不会导致此错误:它有 2 秒的超时时间，如下所示:

To be fair, I do try to connect to a server on startup, but that is not causing this error: it has a 2 second timeout and looks like that:

try
{
    isOffline = !(InetAddress.getByName(Config.domain + "." + Config.serverDomain).isReachable(2000));
}
catch (IOException e)
{
    e.printStackTrace();
}

不管怎样，错误中没有引用我的代码，所以我想如果我没有 <offline-allowed/> 我根本无法离线运行应用程序?这是真的?如果是的话，这是使用 JWS 部署的一个大问题，我可能会完全放弃它...

Irregardless, my code is not referenced in the error, so I guess if I don't have <offline-allowed /> I cannot run the app offline at all? Is this true? If yes, this is a massive problem for deployment with JWS, I'll probably just ditch it altogether...

我想我可能遇到了这个问题:http://bugs.sun.com/bugdatabase/view_bug.do?bug_id=7121086有人知道解决方法吗?

I think I may be hitting this: http://bugs.sun.com/bugdatabase/view_bug.do?bug_id=7121086 anyone knows a workaround?

在错误中说

获取用作扩展名的每个 jnlp 的 rif.意思是合二为一.在这种情况下有效

Get rif of every jnlp used as extension. meaning mix all in one. At this condition that works

所以我应该将 JavaFX 作为 jar 混合到我的 JNLP 中?

So I should mix JavaFX as a jar into my JNLP?

推荐答案

我设法在不删除 的情况下解决了这个问题，这里是 JNLP:

I managed to solve the problem without removing <offline-allowed />, here is the JNLP:

<?xml version="1.0" encoding="utf-8"?>
<jnlp spec="6.0+" codebase="http://192.168.1.85/deploy/" href="Companyapp.jnlp">

    <information>
        <title>Companyapp</title>
        <vendor>Media Citizens</vendor>
        <description>Companyapp Presentation Desktop</description>
        <homepage href="http://192.168.1.85" />

        <shortcut online="true" install="true">
            <desktop />
            <menu submenu="Companyapp" />
        </shortcut>

        <offline-allowed />

        <icon kind="shortcut" href="http://192.168.1.85/deploy/icons/32x32.gif" width="32" height="32" />
        <icon kind="shortcut" href="http://192.168.1.85/deploy/icons/64x64.gif" width="64" height="64" />
        <icon kind="splash" href="http://192.168.1.85/deploy/icons/splash_screen.jpg" width="1024" height="768" />
    </information>

    <update check="always" policy="prompt-update" />

    <security>
        <all-permissions />
    </security>

    <resources>
        <jfx:javafx-runtime version="2.2+" href="http://javadl.sun.com/webapps/download/GetFile/javafx-latest/windows-i586/javafx2.jnlp" />
    </resources>

    <resources>
        <j2se version="1.6+" href="http://java.sun.com/products/autodl/j2se" />

        <jar href="http://192.168.1.85/deploy/Companyapp.jar" main="true" />
        <jar href="http://192.168.1.85/deploy/libs/async-http-client-1.7.8.jar" size="477791" download="eager" />
        <jar href="http://192.168.1.85/deploy/libs/commons-codec-1.7.jar" size="259600" download="eager" />
        <jar href="http://192.168.1.85/deploy/libs/commons-io-2.4.jar" size="185140" download="eager" />
        <jar href="http://192.168.1.85/deploy/libs/commons-lang3-3.1.jar" size="315805" download="eager" />
        <jar href="http://192.168.1.85/deploy/libs/commons-logging-1.1.jar" size="52915" download="eager" />
        <jar href="http://192.168.1.85/deploy/libs/json-simple-1.1.1.jar" size="23737" download="eager" />
        <jar href="http://192.168.1.85/deploy/libs/slf4j-api-1.7.2.jar" size="26083" download="eager" />
        <jar href="http://192.168.1.85/deploy/libs/sqlite-jdbc-3.7.15-SNAPSHOT.jar" size="3702257" download="eager" />
        <jar href="http://192.168.1.85/deploy/libs/ws-commons-util-1.0.2.jar" size="34407" download="eager" />
        <jar href="http://192.168.1.85/deploy/libs/xmlrpc-client-3.1.3.jar" size="58573" download="eager" />
        <jar href="http://192.168.1.85/deploy/libs/xmlrpc-common-3.1.3.jar" size="109131" download="eager" />
        <jar href="http://192.168.1.85/deploy/libs/zt-zip-1.5.jar" size="33059" download="eager" />
        <jar href="http://192.168.1.85/deploy/libs/javaws.jar" size="893738" download="eager" />
    </resources>

    <application-desc main-class="com.mediacitizens.companyapp.presentation.desktop.Main" />
</jnlp>

并确保服务器正确处理更新，为 Apache 安装 mod_expires 并将此 .htaccess 放在 JNLP 和 JAR 所在的文件夹中:

And to make sure the server handles updates correctly, install mod_expires for Apache and put this .htaccess in the folder where the JNLP and JAR are:

DirectoryIndex index.html

AddType application/x-java-jnlp-file .jnlp
AddType application/x-java-archive .jar
AddType application/x-java-archive-diff .jardiff

<IfModule mod_expires.c>
  ExpiresActive On
  ExpiresDefault "modification"
</IfModule>

这篇关于Java Web Start 应用程序无法从快捷方式更新的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！

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