Question

现在我的代码只加载1页（load.php？cid = 1但是我想加载5-8（cid = 1，cid = 2，cid = 3，cid = 4，cid = 5， cid = 6，cid = 10 ...等）在不同的div中。

我将如何实现它？

$(document).ready(function() {
        function loading_show() {
            $('#loading_Paging').html("<img src='images/loading.gif'/>").fadeIn('fast');
        }

        function loading_hide() {
            $('#loading_Paging').fadeOut 'fast');
        }

        function loadData(page) {
            loading_show();
            $.ajax({
                type: "POST",
                url: "load.php?cid=1",
                data: "page=" + page,
                success: function(msg) {
                    $("#container_Paging").ajaxComplete(function(event, request, settings) {
                        loading_hide();
                        $("#container_Paging").html(msg);
                    });
                }
            });
        }

Answer 1

正如JimL所提到的，我会给你的页面上的每个元素一个公共类，给每个元素一个唯一的数据属性，如data-cid="1"，遍历每个元素抓取cid并为每个元素调用ajax函数。 / p>

我更进一步，使用promise来获取所有ajax响应，然后在解析promise时加载所有数据（当所有ajax请求都已完成时）。

这是a working example

HTML：

<div id="loading_Paging"></div>
<div class="myElements" data-cid="1"></div>
<div class="myElements" data-cid="2" ></div>
<div class="myElements" data-cid="3" ></div>
<div class="myElements" data-cid="4" ></div>
<div class="myElements" data-cid="5" ></div>
<div class="myElements" data-cid="6" ></div>
<div class="myElements" data-cid="7"></div>
<div class="myElements" data-cid="8" ></div>

jQuery：

$(function() {

    var page = 'some string...'
    loadData(page);

    function loadData(){
        $('#loading_Paging').html("<img src='images/loading.gif'/>").fadeIn('fast');
        // loop through each image element
        // calling the ajax function for each and storing the reponses in a `promise`
        var promises = $('.myElements').map(function(index, element) {
            var cid = '&&cid=' + $(this).data('cid'); // get the cid attribute 
            return $.ajax({
                    type: "POST",
                    url: 'load.php',
                    data: "page=" + page +cid, //add the cid info to the post data
                    success: function(msg) {
                    }
            });
        });
        // once all of the ajax calls have returned, te promise is resolved 
        // and the below function is called 
        $.when.apply($, promises).then(function() {
            // arguments[0][0] is first result
            // arguments[1][0] is second result and so on
            for (var i = 0; i < arguments.length; i++) {
                $('.myElements').eq(i).html( arguments[i][0] );
            }
            $('#loading_Paging').fadeOut('fast');
        });
     }
});

我用于示例的PHP：

<?php
if (isset($_POST['cid']) ){
    // this is just a contrived example
    // in your code youd use the cid to 
    // get whatever data you need for the current div
    echo 'This is returned message '.$_POST['cid'];
}
?>

Php Ajax - 一个页面中的多个调用

1 个答案: