如何包含外部html(如果存在)，否则什么也不做? [英] How to include external html if exists, else do nothing?

问题描述

我有一个使用jquery的页面，我想检测是否存在外部文件.如果可以，我想将其加载到div中，但是如果不这样做，则我不希望其执行任何操作.

I have a page that uses jquery and I want to detect if an external file exists. If it does, I want to load it into a div, but if it doesn't, I want it to do nothing.

我正在使用此代码，它可以加载文件，但是如果外部文件不存在，它将加载404错误页面.我是jquery的新手，将不胜感激.另外，用于检查文件的方法还必须具有rootdomain +，以便可以将代码插入无需编辑的多个站点中.

I'm using this code and it works to load the file, but it's loading a 404 error page if the external file does not exist. I am very new at jquery and would appreciate any help. Also, the method to check for the file needs to have rootdomain+ so that the code can be plugged into multiple sites with no edits.

$(function() {
      $('#test').load('/pages/test.html');
});

任何帮助将不胜感激.我一直在搜索几天，但是我发现的唯一的东西就是头部检查脚本，如果url无效，则无法选择不执行任何操作.我很想知道自己如何编写这个简单的代码，但是现在它已经超出了我的脑海. :)

Any help would be greatly appreciated. I've been searching for days but the only things I have found are head check scripts that don't have the option of doing nothing if the url isn't valid. I would love to know how to write this simple code myself but right now it's over my head. :)

杰里

推荐答案

尝试使用ajax()方法而不是load()，并在成功回调中设置html():

Try using the ajax() method rather than load() and set your html() in the success callback:

$(function() {
    $.ajax({
        url: "/pages/test.html",
        cache: false,
        dataType: "html",
        success: function(html){
            $('#test').html(html);
        }
    });
});

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