luaj加载自定义java,LuaJ如何在Lua脚本中创建Java对象的实例？

I have Java class:

class SomeClass{

private int i;

public SomeClass(int i){

this.i &＃61; i;

}

}

And I need to create instance of this class in Lua script and pass it to Java function, using LuaJ library. How I can do it?

解决方案

This is some example code found on lua.org:

jframe &＃61; luajava.bindClass( "javax.swing.JFrame" )

frame &＃61; luajava.newInstance( "javax.swing.JFrame", "Texts" );

frame:setDefaultCloseOperation(jframe.EXIT_ON_CLOSE)

frame:setSize(300,400)

frame:setVisible(true)

With your example, this should translate to:

local obj &＃61; luajava.newInstance("your.package.SomeClass",123)

print(obj.i) --> nil -- Since it&＃39;s a private field

If you have a method public int getValue(), you can use obj:getValue().

I&＃39;ve tested this myself just now, as I hadn&＃39;t for a long time.