如何在客户端检查 YouTube 上是否存在视频 [英] How do I check if a video exists on YouTube, in client side

问题描述

我正在

解决方案

@hitesh, 请从 ajax 请求中删除 datatype:'jsonp'.这样，如果视频 id 可用，您将获得 json 字符串，如果它不可用，则将调用 ajax 错误回调.我试过你的小提琴及其工作.试试这样-

//var videoID = 'kn8yzJITdvI';//不工作var videoID = 'p4kIwWHP8Vc';//工作$.ajax({url: "https://gdata.youtube.com/feeds/api/videos/" + videoID + "?v=2&alt=json",//数据类型:jsonp"，成功:函数(数据){控制台日志(数据)$("#result").text(data);},错误:函数(jqXHR，textStatus，errorThrown){//这里处理错误alert('错误:' + textStatus);}});

这是您需要的解决方案的另一个简短实现-

//var videoID = 'kn8yzJITdvI';//不工作var videoID = 'p4kIwWHP8Vc';//工作$.getJSON('http://gdata.youtube.com/feeds/api/videos/'+videoID+'?v=2&alt=jsonc',function(data,status,xhr){警报(data.data.title)；}).error(function() { alert("error"); });

I am doing validation for my Youtube url text field.

I need to check, if the Youtube url does not exist I should throw error, I followed this answer and created the jsfiddle to check it.

It works for valid url but it does not work for invalid url. All I see is 404 error in network console

Is there a way to check if url exist in client side using JavaScript and jQuery.

here is my code :

var videoID = 'kn8yzJITdvI';//not working 
//var videoID = 'p4kIwWHP8Vc';//working 
$.ajax({
    url: "https://gdata.youtube.com/feeds/api/videos/" + videoID + "?v=2&alt=json",
    dataType: "jsonp",
    success: function(data) {
        console.log(data)
          $("#result").text(data);
    },
    error: function(jqXHR, textStatus, errorThrown)
                    {
                        // Handle errors here
                        alert('ERRORS: ' + textStatus);

                    }
});

JSfiddle Link

解决方案

@hitesh, Please remove the datatype:'jsonp' from the ajax request. This way you'll get json string if the video id is available and if its not available then the ajax error callback would be invoked. I tried on your fiddle and its working. Try like this-

//var videoID = 'kn8yzJITdvI';//not working 
var videoID = 'p4kIwWHP8Vc';//working 
$.ajax({
    url: "https://gdata.youtube.com/feeds/api/videos/" + videoID + "?v=2&alt=json",
    //dataType: "jsonp",
    success: function(data) {
        console.log(data)
          $("#result").text(data);
    },
    error: function(jqXHR, textStatus, errorThrown)
                    {
                        // Handle errors here
                        alert('ERRORS: ' + textStatus);
                    }
});

Here is another short implementation for the solution you need-

//var videoID = 'kn8yzJITdvI';//not working 
var videoID = 'p4kIwWHP8Vc';//working 

$.getJSON('http://gdata.youtube.com/feeds/api/videos/'+videoID+'?v=2&alt=jsonc',function(data,status,xhr){
    alert(data.data.title);
}).error(function() { alert("error"); });

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