服务器端的JavaScript, 看下wikipedia的介绍：
https://en.wikipedia.org/wiki/JavaScript#Server-side_JavaScript
Server-side JavaScript
In December 1995, soon after releasing JavaScript for browsers, Netscape introduced an implementation of the language for server-side scripting with Netscape Enterprise Server.
Since 1996, the IIS web-server has supported Microsoft’s implementation of server-side Javascript – JScript – in ASP and .NET pages.
Since the mid-2000s, additional server-side JavaScript implementations have been introduced, such as Node.js in 2009.
再看SAP的Server Side(服务器端) JavaScript解决方案：SAP Extended Application Service
创建一个新的package：
创建一个新的Application：
创建一个新的文件test.xsjs, 内容如下：
var userInput = $.request.parameters.get("userStuff");
$.response.contentType = "text/html";
$.response.setBody(userInput);
这个hello world应用是一个简单的echo应用：将用户通过url传进来的数据直接输出。
测试：
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