如何从bootRun传递JVM选项 [英] How to pass JVM options from bootRun

问题描述

我正在开发与远程主机通信的简单Spring Web应用程序，我想在公司代理的本地测试它。
我使用Spring Bootgradle插件，问题是我如何为JVM指定代理设置？

几种方法：
$ b $ ol

gradle -Dhttp.proxyHost = XXXX -Dhttp.proxyPort = 8080 bootRun code>

export JAVA_OPTS = - Dhttp.proxyHost = XXXX -Dhttp.proxyPort = 8080

export GRADLE_OPTS = - Dhttp.proxyHost = XXXX -Dhttp.proxyPort = 8080

但它们似乎都不起作用 - NoRouteToHostException引发网络代码。
也，我已经添加一些额外的代码调试JVM开始参数：

  RuntimeMXBean runtimeMxBean = ManagementFactory.getRuntimeMXBean（） ; 
列表< String> arguments = runtimeMxBean.getInputArguments（）; 
 for（String arg：arguments）System.out.println（arg）; 
  

只打印一个参数：-Dfile.encoding = UTF-8。

如果我在代码中设置系统属性：

pre $ System $ set System .proxyHost，XXXX）;
System.setProperty（http.proxyPort，8080）;


一切正常！

解决方案

原始答案（使用Gradle 1.12和Spring Boot 1.0.x）：

Spring Boot gradle插件的 bootRun 任务扩展了Gradle JavaExec任务。参见 。

这意味着您可以通过添加以下代码来配置插件以使用代理：

  bootRun {
 jvmArgs =-Dhttp.proxyHost = xxxxxx，-Dhttp.proxyPort = xxxxxx
 } 
  

添加到您的构建文件中。

当然，您可以使用 systemProperties 而不是 jvmArgs

如果您想从命令行有条件地添加jvmArgs，您可以执行以下操作：

  bootRun {
 if（ project.hasProperty（'jvmArgs'））{
 jvmArgs project.jvmArgs.split（'\\s +'）
} 
} 
 
 gradle bootRun  - PjvmArgs = -  Dwhatever1 = value1 -Dwhatever2 = value2
  

Upd ated答案：使用 Spring Boot 1.2.6.RELEASE 和 Gradle 2.7 我观察到，由于一些评论提及，它不起作用。
然而，可以做一些小的调整来恢复工作状态。

新代码是：

  bootRun {
 jvmArgs = [-Dhttp.proxyHost = xxxxxx，-Dhttp.proxyPort = xxxxxx] 
} 
  

用于硬编码参数，以及

  bootRun {
 if（project.hasProperty（'jvmArgs'））{
 jvmArgs =（project.jvmArgs.split（\\ s +）as List）
 
} 
} 
  

用于从命令行提供的参数

I'm developing simple Spring web application that communicates with remote host and I would like to test it locally behind corporate proxy. I use "Spring Boot" gradle plugin and the question is how can I specify proxy settings for JVM?

I have try several ways to do it:

1. gradle -Dhttp.proxyHost=X.X.X.X -Dhttp.proxyPort=8080 bootRun
2. export JAVA_OPTS="-Dhttp.proxyHost=X.X.X.X -Dhttp.proxyPort=8080"
3. export GRADLE_OPTS="-Dhttp.proxyHost=X.X.X.X -Dhttp.proxyPort=8080"

But it seems like none of them work - "NoRouteToHostException" throws in "network" code. Also, I have added some extra code to debug JVM start arguments:

    RuntimeMXBean runtimeMxBean = ManagementFactory.getRuntimeMXBean();
    List<String> arguments = runtimeMxBean.getInputArguments();
    for (String arg: arguments) System.out.println(arg);

And only one argument was printed: "-Dfile.encoding=UTF-8".

If I set system property in code:

    System.setProperty("http.proxyHost", "X.X.X.X");
    System.setProperty("http.proxyPort", "8080");

Everything works just fine!

解决方案

Original Answer (using Gradle 1.12 and Spring Boot 1.0.x):

The bootRun task of the Spring Boot gradle plugin extends the gradle JavaExec task. See this.

That means that you can configure the plugin to use the proxy by adding:

bootRun {
   jvmArgs = "-Dhttp.proxyHost=xxxxxx", "-Dhttp.proxyPort=xxxxxx"
}

to your build file.

Of course you could use the systemProperties instead of jvmArgs

If you want to conditionally add jvmArgs from the command line you can do the following:

bootRun {
    if ( project.hasProperty('jvmArgs') ) {
        jvmArgs project.jvmArgs.split('\\s+')
    }
}

gradle bootRun -PjvmArgs="-Dwhatever1=value1 -Dwhatever2=value2"

Updated Answer:

After trying out my solution above using Spring Boot 1.2.6.RELEASE and Gradle 2.7 I observed that it was not working as some of the comments mention. However, a few minor tweaks can be made to recover the working state.

The new code is:

bootRun {
   jvmArgs = ["-Dhttp.proxyHost=xxxxxx", "-Dhttp.proxyPort=xxxxxx"]
}

for hard-coded arguments, and

bootRun {
    if ( project.hasProperty('jvmArgs') ) {
        jvmArgs = (project.jvmArgs.split("\\s+") as List)

    }
}

for arguments provided from the command line

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