如何设置JVM使用的代理 [英] How do I set the proxy to be used by the JVM

问题描述

很多时候，Java应用程序需要连接到Internet。最常见的例子是在读取XML文件并需要下载其架构时。

Many times, a Java app needs to connect to the Internet. The most common example happens when it is reading an XML file and needs to download its schema.

我在代理服务器后面。如何设置我的JVM以使用代理？

I am behind a proxy server. How do I set my JVM to use the proxy ?

推荐答案

从Java文档（ not javadoc API）：

From the Java documentation (not the javadoc API):

http://download.oracle.com/javase/6/docs/technotes/guides/net/proxies.html

在命令行上启动JVM时，设置JVM标志 http.proxyHost 和 http.proxyPort 。
这通常在shell脚本（在Unix中）或bat文件（在Windows中）中完成。以下是Unix shell脚本的示例：

Set the JVM flags http.proxyHost and http.proxyPort when starting your JVM on the command line. This is usually done in a shell script (in Unix) or bat file (in Windows). Here's the example with the Unix shell script:

JAVA_FLAGS=-Dhttp.proxyHost=10.0.0.100 -Dhttp.proxyPort=8800
java ${JAVA_FLAGS} ...

当使用JBoss或WebLogic等容器时，我的解决方案是编辑供应商提供的启动脚本。

When using containers such as JBoss or WebLogic, my solution is to edit the start-up scripts supplied by the vendor.

许多开发人员熟悉Java API（javadocs），但很多时候其他文档都是忽视。它包含许多有趣的信息： http://download.oracle.com/ javase / 6 / docs / technotes / guides /

Many developers are familiar with the Java API (javadocs), but many times the rest of the documentation is overlooked. It contains a lot of interesting information: http://download.oracle.com/javase/6/docs/technotes/guides/

更新：如果你不想使用代理解析一些本地/内联网主机，请查看@Tomalak的评论：

Update : If you do not want to use proxy to resolve some local/intranet hosts, check out the comment from @Tomalak:

也不要忘记http.nonProxyHosts属性！

Also don't forget the http.nonProxyHosts property!

-Dhttp.nonProxyHosts="localhost|127.0.0.1|10.*.*.*|*.foo.com‌​|etc"

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