Question

我有以下json：

{  
   "batchcomplete":"",
   "query":{  
      "pages":{  
         "53309836":{  
            "pageid":53309836,
            "ns":0,
            "title":"March 4 Trump",
            "contentmodel":"wikitext",
            "pagelanguage":"en",
            "pagelanguagehtmlcode":"en",
            "pagelanguagedir":"ltr",
            "touched":"2018-06-12T21:00:59Z",
            "lastrevid":828824621,
            "length":12173,
            "fullurl":"https://en.wikipedia.org/wiki/March_4_Trump",
            "editurl":"https://en.wikipedia.org/w/index.php?title=March_4_Trump&action=edit",
            "canonicalurl":"https://en.wikipedia.org/wiki/March_4_Trump"
         }
      }
   }
}

我通过跑步获得：

$.getJSON("https://en.wikipedia.org/w/api.php?action=query&prop=info&pageids=<?php echo $pageId; ?>&inprop=url&format=json&callback=?", {
  format: "json"
 }, function(data) {
  $.each(data.query, function(i) {
    console.log(JSON.stringify(data));
 });
});

我需要title

我尝试过：console.log(i.title);和console.log(i.pages.title);

Answer 1

这会得到你的头衔。对象的$ .each函数返回键值对，以便您可以使用键获取或值。像这样。

$.each(data.query.pages, function(key, value) {
 console.log(data.query.pages[key].title)
// or
 console.log(value.title)
})

Answer 2

使用data.query.pages然后使用标题索引获取值

var data = {  
   "batchcomplete":"",
   "query":{  
      "pages":{  
         "53309836":{  
            "pageid":53309836,
            "ns":0,
            "title":"March 4 Trump",
            "contentmodel":"wikitext",
            "pagelanguage":"en",
            "pagelanguagehtmlcode":"en",
            "pagelanguagedir":"ltr",
            "touched":"2018-06-12T21:00:59Z",
            "lastrevid":828824621,
            "length":12173,
            "fullurl":"https://en.wikipedia.org/wiki/March_4_Trump",
            "editurl":"https://en.wikipedia.org/w/index.php?title=March_4_Trump&action=edit",
            "canonicalurl":"https://en.wikipedia.org/wiki/March_4_Trump"
         }
      }
   }
}

  $.each(data.query.pages, function(index,value) {
    console.log(value.title);
 });

<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>

Answer 3

您已经关闭了循环，但我会反序列化它，然后遍历所有页面以获得您想要的标题。

$.getJSON("https://en.wikipedia.org/w/api.php?action=query&prop=info&pageids=<?php echo $pageId; ?>&inprop=url&format=json&callback=?", {
format: "json"
}, function(data) {
    var d = JSON.stringify(data);
    $.each(d.query.pages, function() {
        console.log(this.title);
    });
});

或者，如果您知道自己要查找的具体页面，可以使用：

var d = JSON.stringify(data);
console.log(d.query.pages['53309836'].title);

希望有所帮助。

如何在json中获得正确的obj？

3 个答案: