为 Ajax 返回多个项目 [关闭]

Question

我有这个 python 代码可以搜索 ebay 以返回 serach 字符串的结果。代码正确执行并返回我想要的结果，但仅当我使用 print() 函数时。我正在使用 json 将结果解析到烧瓶页面，使用 print() 仅打印到控制台，所以我使用了 return 但它没有给出所有结果，它只返回一项。

如何让代码返回所有结果并将其显示在我的烧瓶页面上？

我是 python 新手，这是我的第一个项目。我之前问过这个问题，并将代码升级到现在的状态，我一直在网上搜索解决方案，但我还没有找到任何解决方案。请有人帮我编写一个代码，该代码将返回从搜索中获得的所有结果。

Link to my previous question that helped me

后台

@app.route('/ebay_page_post', methods=['GET', 'POST'])
def ebay_page_post():
    if request.method == 'POST':

        #Get json format of the text sent by Ajax
        search = request.json['search']

        try:
            #ebaysdk code starts here
            api = finding(appid='JohnOkek-hybridse-PRD-5c2330105-9bbb62f2', config_file = None)
            api_request = {'keywords':search, 'outputSelector': 'SellerInfo', 'categoryId': '293'}
            response = api.execute('findItemsAdvanced', api_request)
            soup = BeautifulSoup(response.content, 'lxml')

            totalentries = int(soup.find('totalentries').text)
            items = soup.find_all('item')

            # This will be returned
            itemsFound = {}

            # This index will be incremented 
            # each time an item is added
            index = 0

            for item in items:
                cat = item.categoryname.string.lower()
                title = item.title.string.lower().strip()
                price = int(round(float(item.currentprice.string)))
                url = item.viewitemurl.string.lower()
                seller = item.sellerusername.text.lower()
                listingtype = item.listingtype.string.lower()
                condition = item.conditiondisplayname.string.lower()

                print ('____________________________________________________________')

                #return json format of the result for Ajax processing
            #return jsonify(cat + '|' + title + '|' + str(price) + '|' + url + '|' + seller + '|' + listingtype + '|' + condition)

                # Adding the item found in the collection
                # index is the key and the item json is the value
                itemsFound[index] = jsonify(cat + '|' + title + '|' + str(price) + '|' + url + '|' + seller + '|' + listingtype + '|' + condition)

                # Increment the index for the next items key
                index+=1

            for key in itemsFound:
                return itemsFound[key]

        except ConnectionError as e:
            return jsonify(e)

阿贾克斯

$(document).ready(function() {
            $(".button").click(function() {
                var search = $(".search").val().trim();
                if (search) {
                    $.ajax({
                        type: 'POST',
                        url: "{{url_for('ebay_page_post')}}",
                        data: JSON.stringify({ 'search': search }),
                        contentType: 'application/json;charset=UTF-8',
                        dataType: "json",
                        success:function(data) {
                            if (data.indexOf("|") >= 0) {
                                var newData = data.split("|");
                                var category = newData[0];
                                var title = newData[1];
                                var price = newData[2]
                                var url = newData[3];
                                var seller = newData[4];
                                var listingType = newData[5];
                                var condition = newData[6];


                                $("#returned").html("");
                                $("#returned").append(returned(category, title, price, url, seller, listingType, condition));
                            } else {
                                $("#returned").html("<label>"+data+"</label>");
                            }
                        }
                    });
                }
            });
        });


        function returned(category, title, price, url, seller, listingType, condition) {
            return '<div class="col-lg-6"> ' +
                            '<div class="box">'+
                                '<div class="icon"><i class="ion-ios-heart-outline"></i></div>' +
                                '<h4 class="title">'+title+'</h4>' +
                                '<h5>'+category+'</h5>' +
                                '<small><a href="'+url+'" target="_blank">Go to site</a></small>'+
                                '<div class="description">' +
                                    'Price: <strong>'+price+'</strong>' +
                                    '<p>Seller: <strong>'+seller+'</strong></p>' +
                                    '<p>'+listingType+'</p>' +
                                    '<p>Condition: '+condition+'</p>' +
                                '</div>' +
                            '</div>' +
                        '</div>'
        }

Answer 1

您的 python 代码只返回您的itemsFound 列表中的第一项，因为这就是您要它做的事情：

 for key in itemsFound:
     return itemsFound[key]

... 为什么不直接返回整个列表呢？像这样

 return itemsFound

Answer 2

我可以通过修改我的代码来解决这个问题：

#!/usr/bin/env python

import os
import sys
import pprint
import locale
import time
import datetime
import ebaysdk
from ebaysdk.finding import Connection as finding
from ebaysdk.exception import ConnectionError
from bs4 import BeautifulSoup

from flask import Flask
from flask import request, render_template, jsonify


HTML_OUTPUT = """
    <div class=\"col-lg-6\">
        <div class=\"box wow fadeInLeft\">
            <div class=\"icon\"><img src=\"%s\" alt=\"Item Image\"></div>
            <h4 class=\"title\">%s</h4>
            <ul>
                <li>Price: $ %s</li>
                <li>Seller: %s</li>
                <li>Condition: %s</li>
                <li>Listing Type: %s</li>
            </ul>
            <small><a href="%s" target="_blank">Go to site</a></small>
        </div>
    </div>"""

# Instantiate our Flask class.
app = Flask(__name__)
app.config['TEMPLATES_AUTO_RELOAD'] = True


# Decide which URL will trigger everything...
@app.route('/')
def ebay_serve_page():
    empty_folder()
    return render_template("index.html")

def empty_folder():
    folder = 'static'
    for the_file in os.listdir(folder):
        file_path = os.path.join(folder, the_file)
        try:
            if os.path.isfile(file_path):
                os.unlink(file_path)
            #elif os.path.isdir(file_path): shutil.rmtree(file_path)
        except Exception as e:
            print(e)

# Grab search string entered by user...
@app.route('/ebay_page_post', methods=['GET', 'POST'])
def ebay_page_post():
    if request.method == 'POST':

        #Get json format of the text sent by Ajax
        search = request.json['search']

        try:
            #ebaysdk code starts here
            api = finding(appid='JohnOkek-hybridse-PRD-5c2330105-9bbb62f2', config_file = None)
            api_request = {'keywords':search, 'outputSelector': 'SellerInfo', 'categoryId': '293'}
            response = api.execute('findItemsAdvanced', api_request)
            soup = BeautifulSoup(response.content, 'lxml')

            items = soup.find_all('item')

            # This will be returned
            items_found = []

            for item in items:
                pic = item.PictureURL
                title = item.title.string.strip()
                price = float(item.currentprice.string)
                url = item.viewitemurl.string.lower()
                seller = item.sellerusername.text
                listingtype = item.listingtype.string
                condition = item.conditiondisplayname.string

                print ('____________________________________________________________')

                # Adding the item found in the collection
                items_found.append(HTML_OUTPUT % (pic,
                                                title,
                                                price,
                                                seller,
                                                condition,
                                                listingtype,
                                                url))

            f = open("static/"+search+".html", 'w+')
            for item in items_found:
                f.write("%s" % item)
            f.close()
            return "1"

        except ConnectionError as e:
            return jsonify(e)



if __name__ == '__main__':
    app.run(debug = True)

然后我修改了我的 ajax 调用：

$(document).ready(function() {
        $(".button").click(function() {
            var search = $(".search").val().trim();
            var file = search + ".html";
            if (search) {
                $.ajax({
                    type: 'POST',
                    url: "{{url_for('ebay_page_post')}}",
                    data: JSON.stringify({ 'search': search }),
                    contentType: 'application/json;charset=UTF-8',
                    dataType: "json",
                    success:function(data) {
                        if (data == "1") {
                            $.ajax({
                                url:"/static/"+file,
                                dataType:'html',
                                success: function(items){
                                    $('#returned').html(items);
                                }
                            });
                        } else {
                            $("#returned").html(data);
                        }
                    }
                });
            }
        });

    });

查看结果check it out here

感谢每一位帮助过的人。