jQuery ajax

http://www.runoob.com/jquery/jquery-ref-ajax.html

http://jun1986.iteye.com/blog/1399242

下面是jQuery官方给出的完整的Ajax事件列表：

• ajaxStart (Global Event)
  This event is broadcast if an Ajax request is started and no other Ajax requests are currently running.
  • beforeSend (Local Event)
    This event, which is triggered before an Ajax request is started, allows you to modify the XMLHttpRequest object (setting additional headers, if need be.)
  • ajaxSend (Global Event)
    This global event is also triggered before the request is run.
  • success (Local Event)
    This event is only called if the request was successful (no errors from the server, no errors with the data).
  • ajaxSuccess (Global Event)
    This event is also only called if the request was successful.
  • error (Local Event)
    This event is only called if an error occurred with the request (you can never have both an error and a success callback with a request).
  • ajaxError (Global Event)
    This global event behaves the same as the local error event.
  • complete (Local Event)
    This event is called regardless of if the request was successful, or not. You will always receive a complete callback, even for synchronous requests.
  • ajaxComplete (Global Event)
    This event behaves the same as the complete event and will be triggered every time an Ajax request finishes.
• ajaxStop (Global Event)
  This global event is triggered if there are no more Ajax requests being processed.

$.post、$.get是一些简单的方法，如果要处理复杂的逻辑，还是需要用到jQuery.ajax()

一、$.ajax的一般格式

$.ajax({

     type: ‘POST‘,

     url: url ,

    data: data ,

    success: success ,

    dataType: dataType

});

二、$.ajax的参数描述

参数 描述

三、$.ajax需要注意的一些地方：

  1.data主要方式有三种，html拼接的，json数组，form表单经serialize()序列化的；通过dataType指定，不指定智能判断。

  2.$.ajax只提交form以文本方式，如果异步提交包含<file>上传是传过不过去,需要使用jquery.form.js的$.ajaxSubmit

jQuery ajax

原文：http://www.cnblogs.com/carlo/p/4632471.html