JWS是否支持启动One-Jar

问题描述

我可以使用JWS启动吗？ One-JAR提供了定制的类加载器，该类加载器知道如何从存档中的jar中加载类和资源，而在JWS中，我们需要指定资源中使用的每个JAR。

Can I supposed to launch One-Jar using JWS? One-JAR provides custom classloader that knows how to load classes and resources from a jars inside an archive whereas in JWS we need to specify each JAR that is being used in resources.

如果我尝试启动-

<?xml version="1.0" encoding="UTF-8"?>
<jnlp spec="1.0+" codebase="" href="">
    <information>
        <title>Application</title>
        <vendor>ABC</vendor>
    </information>
    <resources>
        <!-- Application Resources -->
        <j2se version="1.5+"
              href="http://java.sun.com/products/autodl/j2se"/>
        <jar href="Application.jar" main="true" download="eager" />
    </resources>
    <application-desc main-class="com.simontuffs.onejar.Boot">
  </application-desc>
   <update check="background"/>
    <security>
        <all-permissions/>
      </security>
</jnlp>

我的一个JAR的应用JAR包含-

My Application JAR that is One-JAR contains -

com\simontuffs\onejar\<contains complied classes> like JarClassLoader$1.class etc
lib/<contains all jar>
OneJar.class
main/<my application's jar>
META-INF\MANIFEST.MF\ <contains >

Manifest-Version: 1.0
Ant-Version: Apache Ant 1.8.1
Created-By: One-Jar 0.96 Ant taskdef
Main-Class: com.simontuffs.onejar.Boot
One-Jar-Main-Class: com.application.main.Entry

Name: com/simontuffs/onejar/Boot$3.class
SHA1-Digest: +LPrezs+UEFcE3J7QvumcAEO8Z0=

Name: OneJar.class
SHA1-Digest: 28pzzJWqEpLk1xFwJ/jsAav8LyI=

Name: lib/commons-io-1.4.jar
SHA1-Digest: qHYtB+ds/eI5Ulel2ke6fB29Pc4=

等。等等。

如何在资源中指定这些 com / simontuffs / onejar / Boot $ 3.class 路径？

How to specify these com/simontuffs/onejar/Boot$3.class paths in resource ?

推荐答案

支持One-Jar之类的工具的部分问题是，在Jar中加载Jar需要自定义类加载器。默认情况下，JWS将使用通常的JRE类加载器-不支持它。

Part of the problem of supporting tools like One-Jar is that loading Jars within Jars requires a custom class-loader. By default JWS will use the usual JRE class-loaders - which do not support it.

有两种可能的解决方法（我知道）

There are two possible ways that you might get around that (that I know of).

获取One-Jar使用的定制加载器的实例，并将其设置为上下文类加载器。这将需要一个受信任的应用程序。但是，我给您的印象是您的应用程序。

Get an instance of the custom loader used by One-Jar and set it as the context class-loader. This would require a trusted app., but I get the impression that your app. is trusted.

我不知道One-Jar API是否为您自己的应用程序提供了此加载程序。

I have no idea if the One-Jar API provides this loader for your own app.'s use.

来自 ..

one-jar.jar.names

one-jar.jar.names

• true ：保留记录的课程


• false ：将记录的类展平到一个目录中。
  重复项被忽略（第一次获胜）

• true: Recorded classes are kept in directories corresponding to their jar names.
• false: Recorded classes are flattened into a single directory. Duplicates are ignored (first wins)

第二个选项听起来像是一个标准的'胖子。这应该与JWS使用的常规（默认）类加载器一起工作。

The 2 option sounds like a standard 'fat jar'. That should work with the conventional (default) class-loader used by JWS.

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