如何在flask应用程序中将文本文件（特定格式）上传到Java脚本数组？

Question

I have a text file in my static folder that contains a list of specific colleges that I want to use for my autocomplete search in my html page.

This is the format of the text file (college_list.txt):

["college1", "college2", ... "final college"]

This is my autocomplete function in my layout template:

<!-- Autocomplete JS -->
    <link href = "https://code.jquery.com/ui/1.10.4/themes/ui-lightness/jquery-ui.css" rel = "stylesheet">
    <script src = "https://code.jquery.com/jquery-1.10.2.js"></script>
    <script src = "https://code.jquery.com/ui/1.10.4/jquery-ui.js"></script>

    <script>
         $(function() {
            var collegeList  =  [
               UPLOADED LIST HERE!!!!
            ];
            $( "#college_search" ).autocomplete({
               source: collegeList
            });
         });
     </script>

- routes.py
- models.py
- forms.py
- static
    - college_list.txt
-templates
    - layout.html (where I want to upload the college_list into autocomplete function)

Answer 1

Let your college_list.txt be formatted like this:

College 1
College 2
College 3
.
.
final college

In routes.py add a new route /colleges to get the list of colleges as json

from flask import Flask, jsonify 
...
import os

@app.route('/colleges')
def get_college_list():
    with open(os.path.join(app.root_path, 'static', 'college_list.txt'), "r") as f:
        colleges = [college.rstrip() for college in f.readlines()]
    return jsonify({"colleges" : colleges})

In your layout.html modify your script to get college list using ajax call

<script>
    $(function () {
        $("#college_search").autocomplete({
            source: function (request, response) {
                $.ajax({
                    url: "./colleges",
                    success: function (data) {
                        response(data.colleges);
                    }
                });
            }
        });
    });
</script>>