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jQuery ajaxError() 方法

❮ jQuery AJAX 方法

示例

当 AJAX 请求失败时触发一个警告框

$(document).ajaxError(function(){
  alert("发生错误!");
});
亲自试一试 »

定义和用法

ajaxError() 方法指定一个函数,当 AJAX 请求失败时运行该函数。

注意: 从 jQuery 1.8 版本开始,此方法应仅附加到 document。


语法

$(document).ajaxError(function(event,xhr,options,exc))

参数 描述
function(event,xhr,options,exc) 必需。指定如果请求失败则要运行的函数
其他参数
  • event - 包含事件对象
  • xhr - 包含 XMLHttpRequest 对象
  • options - 包含 AJAX 请求中使用的选项
  • exc - 包含 JavaScript 异常(如果发生异常)

亲自试一试 - 示例

使用 xhr 和 options 参数
如何使用 options 参数获取更有用的错误消息。


❮ jQuery AJAX 方法

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