Jquery getJSON跨域问题

Question

我似乎无法使用JQuerys getJSON从其他域中提取我的JSON文件.我已将回调部分放在网址的末尾,但仍然没有快乐.Firebug告诉我它是一个跨域问题,这似乎有意义,好像我将json文件本地放在下面的代码中(不包括？jsoncallback =？工作正常)

继承人Jquery部分

$.getJSON("http://anotherdomain/js/morearticles.js?jsoncallback=?",
    function(json){
        if (show5More.nextSetCount < json.items.length) { // Check not on last group of data
            $('#lineupswitch li').hide();  // Hide the existing items    
            $.each(json.items, function(key,value){ // Loop over the returned data from the json file
                if (key === show5More.nextSetCount) {  // If the itteration is equal to the datablock continure
                     show5More.nextSetCount = show5More.nextSetCount + 1; // 
                     $(value).each( function(index) {
                         if( (index % 2) == 0) {
                             $('<li class="even ' + this.cname +'"><a href="' + this.href + '" class="lineup-thumb"><img src="' + this.thumbimg + '" /></a><h3><a href="' + this.href + '">' + this.titletext + '</a></h3><p>' + this.paratext + '</p></li>').appendTo("#lineupswitch");
                          } else {
                              $('<li class="odd ' + this.cname +'"><a href="' + this.href + '" class="lineup-thumb"><img src="' + this.thumbimg + '" /></a><h3><a href="' + this.href + '">' + this.titletext + '</a></h3><p>' + this.paratext + '</p></li>').appendTo("#lineupswitch");                              
                          } 
                     });
                     return false;
                }
            });
        }
    });         
}

和JSON,我已经验证过.

{ 
  "items": [
            [
                {
                    "href": "/edinburgh/video/news-090415-s2-squalor-edinburgh/", 
                    "thumbimg": "http://brightcove.vo.llnwd.net/d7/unsecured/media/1486976045/1486976045_19721015001_asset-1239819553334.jpg?pubId=1486976045",
                    "titletext": "Cannabis plants found in house with neglected children",
                    "paratext": "A court has heard four young children lived in",
                    "cname": ""
                },
                {
                    "href": "/edinburgh/video/news-090414-s2-waverley-station-edinburgh/", 
                    "thumbimg": "http://brightcove.vo.llnwd.net/d7/unsecured/media/1486976045/1486976045_19537855001_asset-1239732920496.jpg?pubId=1486976045",
                    "titletext": "Multi-million pound revamp for Waverley Station",
                    "paratext": "Edinburgh's Waverley Station is set for a",
                    "cname": ""
                },
                {
                  "href": "/edinburgh/video/news-s2-natal-20090408/", 
                  "thumbimg":"http://brightcove.vo.llnwd.net/d7/unsecured/media/1486976045/1486976045_18948154001_asset-1239206353135.jpg?pubId=1486976045",
                  "titletext": "Stillbirth charity on the road to raise awareness", 
                  "paratext": "SANDS Lothian are hoping to highlight their",
                  "cname": ""
                },
                {
                  "href": "/edinburgh/video/news-090407-l2-rbs/", 
                  "thumbimg":"http://brightcove.vo.llnwd.net/d7/unsecured/media/1486976045/1486976045_18827378001_asset-1239110600777.jpg?pubId=1486976045",
                  "titletext": "Thousands of jobs to go at Royal Bank of Scotland", 
                  "paratext": "Edinburgh-based bank to cut 4,500 positions in the",
                  "cname": ""
                },
                {
                    "href": "/edinburgh/video/news-090415-s2-squalor-edinburgh/", 
                    "thumbimg": "http://brightcove.vo.llnwd.net/d7/unsecured/media/1486976045/1486976045_19721015001_asset-1239819553334.jpg?pubId=1486976045",
                    "titletext": "1",
                    "paratext": "A court has heard four young children lived in",
                    "cname": "lastlineup"
                }               
            ],

            [
                {
                    "href": "/edinburgh/video/news-090415-s2-squalor-edinburgh/", 
                    "thumbimg": "http://brightcove.vo.llnwd.net/d7/unsecured/media/1486976045/1486976045_19721015001_asset-1239819553334.jpg?pubId=1486976045",
                    "titletext": "1",
                    "paratext": "A court has heard four young children lived in",
                    "cname": ""
                },
                {
                    "href": "/edinburgh/video/news-090414-s2-waverley-station-edinburgh/", 
                    "thumbimg": "http://brightcove.vo.llnwd.net/d7/unsecured/media/1486976045/1486976045_19537855001_asset-1239732920496.jpg?pubId=1486976045",
                    "titletext": "2",
                    "paratext": "Edinburgh's Waverley Station is set for a",
                    "cname": ""
                },
                {
                  "href": "/edinburgh/video/news-s2-natal-20090408/", 
                  "thumbimg":"http://brightcove.vo.llnwd.net/d7/unsecured/media/1486976045/1486976045_18948154001_asset-1239206353135.jpg?pubId=1486976045",
                  "titletext": "Stillbirth charity on the road to raise awareness", 
                  "paratext": "3",
                  "cname": ""
                },
                {
                  "href": "/edinburgh/video/news-090407-l2-rbs/", 
                  "thumbimg":"http://brightcove.vo.llnwd.net/d7/unsecured/media/1486976045/1486976045_18827378001_asset-1239110600777.jpg?pubId=1486976045",
                  "titletext": "Thousands of jobs to go at Royal Bank of Scotland", 
                  "paratext": "4",
                  "cname": ""
                },
                {
                  "href": "/edinburgh/video/news-090407-l2-rbs/", 
                  "thumbimg":"http://brightcove.vo.llnwd.net/d7/unsecured/media/1486976045/1486976045_18827378001_asset-1239110600777.jpg?pubId=1486976045",
                  "titletext": "Thousands of jobs to go at Royal Bank of Scotland", 
                  "paratext": "Edinburgh-based bank to cut 4,500 positions in the",
                  "cname": "lastlineup"
                }               

            ]   

        ]
}

{ 
  "items": [
            [
                {
                    "href": "/edinburgh/video/news-090415-s2-squalor-edinburgh/", 
                    "thumbimg": "http://brightcove.vo.llnwd.net/d7/unsecured/media/1486976045/1486976045_19721015001_asset-1239819553334.jpg?pubId=1486976045",
                    "titletext": "Cannabis plants found in house with neglected children",
                    "paratext": "A court has heard four young children lived in",
                    "cname": ""
                },
                {
                    "href": "/edinburgh/video/news-090414-s2-waverley-station-edinburgh/", 
                    "thumbimg": "http://brightcove.vo.llnwd.net/d7/unsecured/media/1486976045/1486976045_19537855001_asset-1239732920496.jpg?pubId=1486976045",
                    "titletext": "Multi-million pound revamp for Waverley Station",
                    "paratext": "Edinburgh's Waverley Station is set for a",
                    "cname": ""
                },
                {
                  "href": "/edinburgh/video/news-s2-natal-20090408/", 
                  "thumbimg":"http://brightcove.vo.llnwd.net/d7/unsecured/media/1486976045/1486976045_18948154001_asset-1239206353135.jpg?pubId=1486976045",
                  "titletext": "Stillbirth charity on the road to raise awareness", 
                  "paratext": "SANDS Lothian are hoping to highlight their",
                  "cname": ""
                },
                {
                  "href": "/edinburgh/video/news-090407-l2-rbs/", 
                  "thumbimg":"http://brightcove.vo.llnwd.net/d7/unsecured/media/1486976045/1486976045_18827378001_asset-1239110600777.jpg?pubId=1486976045",
                  "titletext": "Thousands of jobs to go at Royal Bank of Scotland", 
                  "paratext": "Edinburgh-based bank to cut 4,500 positions in the",
                  "cname": ""
                },
                {
                    "href": "/edinburgh/video/news-090415-s2-squalor-edinburgh/", 
                    "thumbimg": "http://brightcove.vo.llnwd.net/d7/unsecured/media/1486976045/1486976045_19721015001_asset-1239819553334.jpg?pubId=1486976045",
                    "titletext": "1",
                    "paratext": "A court has heard four young children lived in",
                    "cname": "lastlineup"
                }               
            ],

            [
                {
                    "href": "/edinburgh/video/news-090415-s2-squalor-edinburgh/", 
                    "thumbimg": "http://brightcove.vo.llnwd.net/d7/unsecured/media/1486976045/1486976045_19721015001_asset-1239819553334.jpg?pubId=1486976045",
                    "titletext": "1",
                    "paratext": "A court has heard four young children lived in",
                    "cname": ""
                },
                {
                    "href": "/edinburgh/video/news-090414-s2-waverley-station-edinburgh/", 
                    "thumbimg": "http://brightcove.vo.llnwd.net/d7/unsecured/media/1486976045/1486976045_19537855001_asset-1239732920496.jpg?pubId=1486976045",
                    "titletext": "2",
                    "paratext": "Edinburgh's Waverley Station is set for a",
                    "cname": ""
                },
                {
                  "href": "/edinburgh/video/news-s2-natal-20090408/", 
                  "thumbimg":"http://brightcove.vo.llnwd.net/d7/unsecured/media/1486976045/1486976045_18948154001_asset-1239206353135.jpg?pubId=1486976045",
                  "titletext": "Stillbirth charity on the road to raise awareness", 
                  "paratext": "3",
                  "cname": ""
                },
                {
                  "href": "/edinburgh/video/news-090407-l2-rbs/", 
                  "thumbimg":"http://brightcove.vo.llnwd.net/d7/unsecured/media/1486976045/1486976045_18827378001_asset-1239110600777.jpg?pubId=1486976045",
                  "titletext": "Thousands of jobs to go at Royal Bank of Scotland", 
                  "paratext": "4",
                  "cname": ""
                },
                {
                  "href": "/edinburgh/video/news-090407-l2-rbs/", 
                  "thumbimg":"http://brightcove.vo.llnwd.net/d7/unsecured/media/1486976045/1486976045_18827378001_asset-1239110600777.jpg?pubId=1486976045",
                  "titletext": "Thousands of jobs to go at Royal Bank of Scotland", 
                  "paratext": "Edinburgh-based bank to cut 4,500 positions in the",
                  "cname": "lastlineup"
                }               

            ]   

        ]
}

Answer 1

altCognito是正确的.这是一个工作示例:

把它放在你打电话的页面顶部,在

$.getJSON("http://www.yourotherdomain.com/testcross.php?jsoncallback=?",
    function(data){
      $('body').html(data.name).css("color","green");  
    });

和将返回东西的PHP:

  $data = '{"name" : "hello world"}';
  echo $_GET['jsoncallback'] . '(' . $data . ');';

Answer 2

它没有返回回调函数,因此无法进行评估.

你应该在你的PHP代码中有这样的东西:

echo $_GET['callback'] . '(' . $jsonData . ');';

嗯,对不起,如果你使用的是php,那就是这种情况.

你想在你的javascript文件中使用它,并且你需要指定一个硬编码回调,因为它是一个静态列表.

请参阅:http: //www.ibm.com/developerworks/library/wa-aj-jsonp1/