是否可以将文档加载到内存中？

Question

I need to get a pdf file from http://www.pdf995.com/samples/pdf.pdf using javascript so I can make a POST of this document to a REST API. The pdf should stay only in-memory because I only need that document to make a post request.

Is this possible to do this using browser javascript? I'm using angularjs.

  $http.post("/someUrl", json) { .... } 

Answer 1

Yes you can store the data into local variable and pass it to other ajax call.

window.binaryData = null;
$.ajax( {
  url:'https://www.tutorialspoint.com/jquery/jquery_tutorial.pdf',
  method:'GET',
  success:function(data) {
  window.binaryData = data;
    console.log('Success => ',data);
  },
  error:function(error){
    console.log('Error => ',error);
  }
});

Response from ajax call can be set to variable on the window scope window.binaryData .

jsFiddle - https://jsfiddle.net/L6ge8f0w/