针对javafx应用程序的Gradle构建：虚拟键盘由于缺少System属性而无法使用 [英] Gradle build for javafx application: Virtual Keyboard is not working due to missing System property

问题描述

我使用的是一个javafx应用程序，我们为这个应用程序开发了一个gradle构建系统。可以使用以下gradle任务创建jar文件：

 任务fatJar（类型：Jar）{
 manifest { 
属性'Main-Class'：'myProject'
} 
 baseName = project.name +'-all'
 from {configurations.compile.collect {it.isDirectory（） ？它：zipTree（it）}} 
使用jar $ b排除'META-INF / * .RSA'，'META-INF / * .SF'，'META-INF / * .DSA'
 $ b  

}

问题是我们想要使用虚拟键盘（javafx），因此我们需要设置以下系统属性：

  systemProperty' com.sun.javafx.isEmbedded'，'true'
 systemProperty'com.sun.javafx.touch'，'true'
 systemProperty'com.sun.javafx.virtualKeyboard'，'javafx'
  

我可以在gradle build中设置这个属性，还是需要用

$启动应用程序b
$ b

java -Dcom.sun.javafx.isEmbedded = true -Dcom.sun.javafx.touch = true -Dcom.sun.javafx.virtualKeyboard = javafx -jar myProject.jar

祝好运

__________________________________-

解决方案弗雷德里克亨利:-)）是写一个包装pper class like

  public class AppWrapper 
 {
 public static void main（String [] args）throws例外
 {
 Class<？> app = Class.forName（myProject）; 
方法main = app.getDeclaredMethod（main，String []。class）; 
 System.setProperty（com.sun.javafx.isEmbedded，true）; 
 System.setProperty（com.sun.javafx.touch，true）; 
 System.setProperty（com.sun.javafx.virtualKeyboard，javafx）; 
 Object [] arguments = new Object [] {args}; 
 main.invoke（null，arguments）; 
} 
} 
  

解决方案

I不认为这个工作可以从构建阶段完成（我很乐意错误，然后看到另一个答案） -

看来这里还有另一个答案< Java：通过运行时修改系统属性它说在你的最后写一个包装主要方法，所以你可以传递你需要的属性，不知道它有多好。

i am using a javafx application and we developed a gradle build system for this application. The jar file can be created with the following gradle task:

    task fatJar(type: Jar) {
manifest {
    attributes 'Main-Class': 'myProject'
}
baseName = project.name + '-all'
from { configurations.compile.collect { it.isDirectory() ? it : zipTree(it) } }
exclude 'META-INF/*.RSA', 'META-INF/*.SF','META-INF/*.DSA' 
with jar

}

This works so far - the only problem is that we want to use the virtual keyboard (javafx) and therefore we need to set the following system properties:

     systemProperty 'com.sun.javafx.isEmbedded', 'true' 
     systemProperty 'com.sun.javafx.touch', 'true'       
     systemProperty 'com.sun.javafx.virtualKeyboard', 'javafx' 

Can i set this properties in the gradle build or is it necessary to start the application with

java -Dcom.sun.javafx.isEmbedded=true -Dcom.sun.javafx.touch=true -Dcom.sun.javafx.virtualKeyboard=javafx -jar myProject.jar

best regards

__________________________________-

The solution (big thanks to Frederic Henri :-)) is to write a wrapper class like

public class AppWrapper 
{   
    public static void main(String[] args) throws Exception 
    {  
        Class<?> app = Class.forName("myProject");         
        Method main = app.getDeclaredMethod("main", String[].class);     
        System.setProperty("com.sun.javafx.isEmbedded", "true"); 
        System.setProperty("com.sun.javafx.touch", "true");          
        System.setProperty("com.sun.javafx.virtualKeyboard", "javafx");     
        Object[] arguments = new Object[]{args};
        main.invoke(null, arguments);
    }
}

解决方案

I dont think this job can be done from the build phase (I'd be happy to be wrong and see another answer though) -

It seems there is another answer here Java: Modify System properties via runtime where it says to write a wrapper around your final main method and so you can pass the properties you need, not sure how good it is though.

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