如何添加默认的JVM参数与Gradle [英] How do I add default JVM arguments with Gradle

问题描述

当使用Gradle构建时，我需要将默认的JVM选项添加到我的jar中。
从我得到的文档中我必须设置：

  applicationDefaultJvmArgs = [-Djavafx.embed.singleThread =真正的] 
  

我对Gradle和编写build.gradle文件的开发人员没有太多经验它与大多数网站给出的例子不同。

以下是build.gradle：

  apply plugin：'java'
 apply plugin：'eclipse'
 
 version ='0.1'
 
 repositories {
 mavenCentral （）
 
 
 dependencies {
 testCompile group：'junit'，name：'junit'，version：'4. +'
 compile'placeholder'
 
 
任务发布（类型：Jar）{
 manifest {
 attributes（Implementation-Title：placeholder，
Implementation-Version ：版本，
'Main-Class'：'placeholder.Application'）
} 
 from {configurations.compile.collect { it.isDirectory（）？它：zipTree（it）}} 
 
 with jar 
} 
 
任务包装（类型：包装器）{
 gradleVersion ='2.2.1' 
} 
  

我不知道把参数放在哪里。我尝试将它们放在不同的位置，但我总是得到：

 评估根项目'占位符'时发生问题。 
>没有这样的属性：applicationDefaultJvmArgs for class：org.gradle.api.tasks.bundling.Jar_Decorated 
  

非常感谢，
Jhonny

解决方案

从我的头顶我可以想到2个选项：

选项1：做什么@Ethan说，它可能会工作：

  package placeholder; 
 $ b $ //您的导入
 
 public class Application {
 static {
 System.getProperties（）。set（javafx.embed.singleThread， 真正）; 
 
 //你的代码
 public static void main（String ... args）{
 //你的代码
} 
} 
  

选项2：使用应用程序插件+默认jvm值

build.gradle：
$ b

  apply apply：'application'
 //您的代码
 applicationDefaultJvmArgs = [-Djavafx.embed.singleThread = true] 
  

现在您可以通过2种方式运行代码：

从gradle

  $ gradle run 
 
 code> 

来自分配（脚本）。从生成的应用程序插件将提供的脚本中：



  $ gradle clean build distZip 
  

然后，gradle将在 $ {your.projectdir} / build 下生成一个zip文件。找到该zip，然后解压缩，并在 / bin 下找到 $ {yourproject} .bat 和 $ {yourproject} 可执行文件。一个用于Linux / mac / unix（ $ {yourproject} ）另一个用于windows（ $ {yourproject.bat} ）

I need to add default JVM options to my jar, when build with Gradle. From the documentation I got that I have to set:

applicationDefaultJvmArgs = ["-Djavafx.embed.singleThread=true"]

I have not much experience with Gradle and the developer that wrote the build.gradle file wrote it different from what most websites give as examples.

Here is the build.gradle:

apply plugin: 'java'
apply plugin: 'eclipse'

version = '0.1'

repositories {
    mavenCentral()
}

dependencies {
    testCompile group: 'junit', name: 'junit', version: '4.+'
    compile 'placeholder'
}

task release(type: Jar) {
    manifest {
        attributes("Implementation-Title": "placeholder",
                "Implementation-Version": version,
                'Main-Class': 'placeholder.Application')
    }
    from { configurations.compile.collect { it.isDirectory() ? it : zipTree(it) } }

    with jar
}

task wrapper(type: Wrapper) {
    gradleVersion = '2.2.1'
}

I don't know where to put the arguments. I tried putting them in different locations, but I always get:

A problem occurred evaluating root project 'placeholder'.
> No such property: applicationDefaultJvmArgs for class: org.gradle.api.tasks.bundling.Jar_Decorated

Much Thanks, Jhonny

解决方案

From the top of my head I can think of 2 options:

Option1: Do what @Ethan said, it'll likely work:

package placeholder;

//your imports

public class Application{
  static {
      System.getProperties().set("javafx.embed.singleThread", "true");  
  }
  // your code
  public static void main(String... args){
    //your code
  }
}

Option 2: Use the application plugin + default jvm values

build.gradle:

apply plugin: 'application'
//your code
applicationDefaultJvmArgs = ["-Djavafx.embed.singleThread=true"]

Now you can run your code 2 ways:

From gradle

$gradle run

From distribution(script). from the generated script that the application plugin will provide:

$gradle clean build distZip

Then gradle will generate a zip file somewhere under ${your.projectdir}/build. Find the zip then unzip it and under /bin you'll find a ${yourproject}.bat and ${yourproject} executables. One is for Linux/mac/unix (${yourproject}) the other one is for windows (${yourproject.bat})

这篇关于如何添加默认的JVM参数与Gradle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！