jQuery ajax自定义错误处理程序 [英] jquery ajax custom error handler

问题描述

我正在JSON服务器上编写一个主干js Web应用程序，该应用程序以J 发送规范返回JSON响应.格式.

I am writing an backbone js web app on top of an JSON server that returns JSON responses in JSend specification format.

以下是该格式的一些示例:

Here are a few examples of that format:

获取/帖子

{
 "status": "success",
 "data": {
   "posts" [
     {"id": 1, "title": "A blog post"}, 
     {"id": 2, "title": "another blog post"}
   ]
 }
}

POST/帖子

{
  "status": "fail",
  "data": {
    "title": "required"
  }
}

默认情况下，$.ajax中的错误"事件由http代码触发，但是由于JSend规范格式根本不使用HTTP代码，因此我必须重写$ .ajax错误处理程序.

By default the "error" event in $.ajax gets triggered by http codes, but since the JSend specification format does not use HTTP codes at all, I have to rewrite the $.ajax error handler.

默认情况下的工作方式(http代码):

The way it works by default (http codes):

$.ajax({
  error: function() {
    // Do your job here.
  },
  success: function() {
    // Do your job here.
  }
});

我如何重写在解析正文时以及状态"属性是失败"还是错误"时触发的$ .ajax错误处理程序?

How can I rewrite the $.ajax error handler that it gets triggered when parsed the body and if the "status" property is "fail" or "error"?

推荐答案

看起来似乎违反直觉，您必须将其放在success函数中.只需自己检查一下值:

As counter-intuitive as it seems, you will have to put it in the success function. Simply check the value yourself:

$.ajax({
  error: function() {
    // Handle http codes here
  },
  success: function(data) {

    if(data.status == "fail"){
      // Handle failure here
    } else {
      // success, do your thing
    }

  }
});

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