How does jello write json to get external pages?

  node.js, question

For example,
I want to get the local test.json data in jello.
图片描述

This is the dataSource in the figure, and the current data is above.图片描述
I now wonder if there is any jello’s own way to get other web pages
图片描述
Data of?
It is really not possible to use ajax, it is better to attach examples of code, thank God! ! !

The front end can directly use ajax to request URI resolution.

$.ajax({
 type:"POST",
 async:false,
 //Request Address
 url:"http://blog.benhuang1024.com",
 //request parameters
 data:{a:"a"},
 beforeSend: function () {
 AlertLoad ('Submitting ...');
 },
 success:function(GetRes){
 askSuceess();
 },
 error:function(){
 AlertNew ('the network is busy, please try again!'  );
 bracket
 
 });