为什么运行代码时为什么我的json数据不会出现在浏览器中
[英]Why my json data wont appear in browser when i run the code
问题描述
My json data won't appear in browser. 
我的json数据不会出现在浏览器中。 It's my first time using json and I can't figure out the problem.I searched on internet and it was related with mime but still can't figure it out. 这是我第一次使用json，我无法找出问题所在。我在互联网上进行搜索，发现它与mime有关，但仍然无法解决。 This is the code: 这是代码：
<!DOCTYPE html>
<html>
<head>
<script src="http://ajax.googleapis.com/ajax/libs/jquery/1.11.3/jquery.min.js"></script>
<script>
var jsonData = '[{"rank":"9","content":"Alon","UID":"5"},{"rank":"6","content":"Tala","UID":"6"}]';
$.ajax({
url: '/echo/json/',
type: 'POST',
contentType:"application/json; charset=utf-8",
data: {
json: jsonData
},
success: function (response) {
var trHTML = '';
$.each(response, function (i, item) {
trHTML += '<tr><td>' + item.rank + '</td><td>' + item.content + '</td><td>' + item.UID + '</td></tr>';
});
$('#records_table').append(trHTML);
}
});
</script>
</head>
<body>
<table id="records_table" border='1'>
<tr>
<th>Rank</th>
<th>Content</th>
<th>UID</th>
</tr>
</table>
</body>
</html>
2 个解决方案
解决方案1
0 2015-06-06 19:44:55
Here is the updated code 这是更新的代码
<!DOCTYPE html>
<html>
<head>
<script src="http://ajax.googleapis.com/ajax/libs/jquery/1.11.3/jquery.min.js"></script>
<script>
var jsonData = '[{"rank":"9","content":"Alon","UID":"5"},{"rank":"6","content":"Tala","UID":"6"}]';
$(document).ready(function(){
$.ajax({
url: '/echo/json/',
type: 'POST',
contentType:"application/json; charset=utf-8",
data: {
json: jsonData
},
success: function (response) {
var trHTML = '';
$.each(response, function (i, item) {
trHTML += '<tr><td>' + item.rank + '</td><td>' + item.content + '</td><td>' + item.UID + '</td></tr>';
});
$('#records_table').append(trHTML);
}
});
});
</script>
</head>
<body>
<table id="records_table" border='1'>
<tr>
<th>Rank</th>
<th>Content</th>
<th>UID</th>
</tr>
</table>
</body>
</html>
You were missing the document ready block around your ajax call. 您在ajax调用周围缺少文档就绪块。
解决方案2
0 2015-06-06 19:48:04
Write a Error method and see if some ajax error has occured 编写一个Error方法，看看是否发生了一些ajax错误
`$.ajax({
success: function(){
// Handle the success event
},
error: function(xhr){
// Handle the error event
}
// ......
});`
The xhr will have response text xhr将显示响应文本
UPDATE: 更新：
your code is perfectly fine as nikhil said dodument.ready should do the magic 您的代码完全正确，就像nikhil所说的dodument.ready应该是魔术
check the fiddle i have tested with your code http://jsfiddle.net/8sfm0p14/ 检查我用您的代码测试过的小提琴http://jsfiddle.net/8sfm0p14/
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