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Most people do not quite understand the knowledge points of this article "how to solve the problems in Wechat calls with ajax in jquery1.8 version", so the editor summarizes the following contents. The contents are detailed and the steps are clear, which can be used for reference. I hope you can get something after reading this article. Let's take a look at this article entitled "how to solve the problem of Wechat call using ajax in jquery1.8 version".

Analysis of the reason: the first thing that comes to mind is that there is a problem with the returned data type, because the jquery version above 1.4 is very strict with the json format, which needs to conform to the format {"target": true, "message": "success"}. The response object is analyzed by JSON.stringify () function, the result is consistent, and the reason is excluded.

Since ajax is going to error, I start to analyze the parameters of the error function, which are XMLHttpRequest, textStatus, and errorThrown. I found that XMLHttpRequest.status equals 0xmlhttRequest.readyState equals 0, indicating that there is a XMLHttpRequest object in the form but not initialized, and then I start to study how to initialize the XMLHttpRequest object.

Solution:

Var xmlHttpRequest;$ (function () {if (window.XMLHttpRequest) {xmlHttpRequest=new XMLHttpRequest ();} else {xmlHttpRequest=new ActiveXObject ("Microsoft.XMLHTTP");} xmlHttpRequest.open ("GET", "AjaxServlet", true);})

This solves the problem described above. Note that there will be no problem in accessing general Ajax on PC, because all browsers in PC have built-in XMLHttpRequest objects. In Wechat, this phenomenon may need to be manually built and initialized.

Ps: Android Wechat comes with a browser and IE6 browser ajax request abort error handling

A click event is bound to the page element to trigger an ajax request, which is often interrupted in Android Wechat's built-in browser and under IE6, returning the error type "abort", and everything is fine in other browsers.

Using Fiddler2 and httpWatch to monitor requests in IE6, "aborted" often appears.

Solution: add onclick='return false;' to the label

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