我终于成功地通过AJAX传递数据并以JSON格式返回。 但是,现在我不知道如何在我的页面上显示它。
这是我的JS:
$(function() {
$( "#selectable" ).selectable({
selected: updatefilters,
unselected: updatefilters
});
function updatefilters(ev, ui){
// get the selected filters
var $selected = $('#selectable').children('.ui-selected');
// create a string that has each filter separated by a pipe ("|")
var filters = $selected.map(function(){return this.id;}).get().join("'|");
$.ajax({
type: "POST",
url: 'updatefilters',
dataType: 'json',
data: { filters: filters },
success: function(data){
$('#board').replaceWith(data.content);
}
});
}
});
我的模型运行后,它会回显在 Firebug 中发现的以下内容:
[{"thread_id":"226","owner_id":"1","subject":"trying to create a HUGE body for thread testi","body":"Firstly, I think 45 characters is perfect for the heading. 'n'nHowever, once the body gets huge, I assume that the '"preview'" is going to get a bit out of hand if not truncated. I have truncated code in place...but it doesn't seem to be working.'n'nI'll have to keep testing to ensure we can get it shrunk down to a few hundred characters so as to not completely screw up the page format'n'nyadda yadda yadda...yadda yadda yadda...and more yadda yadda yadda...'n'nBabble Babble Babble Babble Babble 'n'nBabble Babble Babble ","timestamp":"2012-05-02 15:29:19","replystamp":"2012-05-02 15:29:53","last_post_id":"1","slug":"226-trying-to-create-a-huge-body-for-thread-testi","replies_num":"1","views":"19"},{"thread_id":"219","owner_id":"3","subject":"testing icons","body":"hellow world","timestamp":"2012-05-01 11:37:08","replystamp":"2012-05-01 11:37:08","last_post_id":"3","slug":"219-testing-icons","replies_num":"0","views":"3"},{"thread_id":"212","owner_id":"1","subject":"This thread is based off entertainm","body":"Yay","timestamp":"2012-04-25 14:07:55","replystamp":"2012-04-25 14:07:55","last_post_id":"1","slug":"212-this-thread-is-based-off-entertainment","replies_num":"0","views":"4"}]
关于如何用返回的 JSON 数组中的数据替换div"板"的任何建议都将非常有帮助!
假设您要在包含主题和正文的表中显示数据。 你可以这样写:
success: function(data){
var html = "<table>";
for (i=0 ; i< data.length ; i++)
{
html += "<tr><td>" + data[i].subject + "</td><td>" + data[i].body + "</td></tr>";
}
html += "</table";
$('#board').html(html);
}
你明白了。 我还建议您研究模板库胡子.js如果您有时间研究更好的解决方案。 这将允许您将模板与数据分开,并使用Javascript消除HTML和数据之间的丑陋串联。 (不过,这是一种更高级的解决方案,您可能只想保持简单。 Mustache.js引擎允许您像这样编写上述内容:
var template = "{{#item}}<tr><td>{{subject}}</td><td>{{body}}</td></tr>{{/item}}";
var html = "<table>" + mustache.render(template, data) + "</table>";
$("#board").html(html);
success: function(data){
$.each(data, function(index, value) {
$('#board').append(index + ': ' + value + '<br/>');
});
}
您也可以直接从 json 访问值
success: function(data) {
$('#board').append('Thread Subject' + data.subject);
}