var name = 'Joe';  
 var s = "Hello {name}";  
System.out.println(s);  

class Person {
 attribute name: String;
 attribute parent: Person inverse Person.children;
 attribute children: Person* inverse Person.parent;
 function getFamilyIncome(): Number;
 function getNumberOfChildren(): Number;
 operation marry(spouse: Person);
 }
 
var chris = Person {
name: "Chris"
children:
[Person {
name: "Dee"
},
Person {
name: "Candice"
}]
};

 

 import java.lang.System;  
   
     System.out.println(1.class.Name) // prints "Number"  
     System.out.println("Hello".class.Name); // prints "String" 

 

方便吧？

三.在web中的尝试。
      看了说明，好像javaFX出现的目标是简化Swing的界面开发编程。一方面javaFX还没有一个好的所见即所得的ide支持，另外本人对web方面的编程比较感兴趣。所以进行了一个小实验。
     我的思路是用一个servlet拦截所有对fx的请求，根据requestURI,获得javafx文件的绝对路径，然后在servelt中调用java6的脚本引擎，解释执行。
 FXServlet.java

import java.io.File;
 import java.io.FileInputStream;
 import java.io.IOException;
 import java.io.InputStreamReader;
 import javax.servlet.ServletException;
 import javax.servlet.http.HttpServlet;
 import javax.servlet.http.HttpServletRequest;
 import javax.servlet.http.HttpServletResponse;
 
import javax.script.Bindings;
import javax.script.ScriptContext;
import javax.script.ScriptEngine;
import javax.script.ScriptEngineManager;
import javax.script.SimpleScriptContext;

public class FXServlet extends HttpServlet {

private String realPath;

public void doGet(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {

this.doWork(request, response);
}


public void doPost(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {

this.doWork(request, response);
}

public void doWork(HttpServletRequest request, HttpServletResponse response)throws ServletException, IOException{
System.out.println("begin ....");
 try {
ClassLoader loader = Thread.currentThread().getContextClassLoader();
ScriptEngineManager manager = new ScriptEngineManager(loader);
ScriptEngine engine = manager.getEngineByExtension("fx");

Bindings bindings = engine.createBindings();
//将request和response两个对象传递给脚本引擎。
bindings.put("REQUEST:javax.servlet.http.HttpServletRequest",request);
bindings.put("RESPONSE:javax.servlet.http.HttpServletResponse",response);

ScriptContext context = new SimpleScriptContext();
context.setBindings(bindings, ScriptContext.GLOBAL_SCOPE);
context.setBindings(bindings, ScriptContext.ENGINE_SCOPE);
engine.setContext(context);
String uri = request.getRequestURI();
String contextPath = request.getContextPath();
//将requestURI中的contextPath替换掉
if(contextPath!=null&&contextPath.trim().length()>0){
uri = uri.replaceAll(contextPath,"");
}
//根据requestURI取得fx文件的绝对地址我们把fx文件放在站点的 WEB-INF下的 jfx目录下。
String filePath = this.realPath + "WEB-INF"+ File.separator +"jfx" + uri;
File jfxFile =new File(filePath);

if(!jfxFile.exists()){
response.sendError(404);
}else{
InputStreamReader reader = new InputStreamReader(new FileInputStream(jfxFile));
engine.eval(reader);
reader.close();
}
} catch (Exception e) {
e.printStackTrace();
}
System.out.println("... end");
}

public void init() throws ServletException {
this.realPath = this.getServletContext().getRealPath("/");
}

}

web.xml

    <?xml version="0" encoding="UTF-8"?>  
   <web-app version="4"   
       xmlns="http://java.sun.com/xml/ns/j2ee"   
       xmlns:xsi="http://www.worg/2001/XMLSchema-instance"   
       xsi:schemaLocation="http://java.sun.com/xml/ns/j2ee   
       http://java.sun.com/xml/ns/j2ee/web-app_2_xsd">  
     <servlet>  
       <servlet-name>FXServlet</servlet-name>  
       <servlet-class>net.teamhot.jfxweb.FXServlet</servlet-class>  
    </servlet>  
    
    <servlet-mapping>  
      <servlet-name>FXServlet</servlet-name>  
      <url-pattern>*.fx</url-pattern>  
    </servlet-mapping>  
  </web-app>  

 

Hello.fx

import java.lang.System;
 import javax.servlet.http.HttpServlet;
 import javax.servlet.http.HttpServletRequest;
 import javax.servlet.http.HttpServletResponse;
 import java.io.PrintWriter;
 
 //接受从java中传递过来的参数
 var request:HttpServletRequest = REQUEST;
 var response:HttpServletResponse = RESPONSE;

var name = request.getParameter("name");
var out:PrintWriter = response.getWriter();

var template = "Hello World!{if name ==null then 'guest' else name}";

out.print(template);

 

运行:http://localhost:8080/jfx/Hello.fx
结果:Hello World!guest

运行:http://localhost:8080/jfx/Hello.fx?name=jolestar
结果:Hello World!jolestar

注意:本程序需要tomcat在jdk6环境下运行，如果还是提示找不到javax.script.ScriptEngine，请将jdk6 lib 下面的rt.jar中的javax.script包抽取出来，重新打包后放到 tomcat  common lib 下面。

这个程序没有考虑效率问题。其实这样的事情应该由容器完成，本人只是做了个小小的实验。