Using AJAX to transmit values in post, the value received is not the same as the transmission

In the display page, using AJAX to post the value of the value data is in JSON format. Received in the controller, but only partial values were received. There is a url,url in the data that contains the special symbol &, and the received value is to this symbol, the following is not. For example, data in the source code is the value I want.

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In the display page, using AJAX to post the value of the value data is in JSON format. Received in the controller, but only partial values were received. There is a url,url in the data that contains the special symbol &, and the received value is to this symbol, the following is not. For example, data in the source code is the value I want.

Depends on the type you pass to data:

• In the case of an object, jquery automatically adds the encodeuricomponent,& symbol when the AJAX request is sent, is encoded as%26, and is not automatically truncated by formdata
• If data is a string, jquery automatically places the string in Formdata and sends it to the server intact, because Formdata is truncated by &, so the string is automatically truncated AT & without encodeURIComponent.

Before submitting, URL encode you pass this URL

The value corresponding to data is encapsulated with Json.stringify ({}).
For example:

$(".a_post").on("click",function(event){    event.preventDefault();//使a自带的方法失效    $.ajax({           type: "POST",           url: "url地址",           contentType:"application/json",           data: JSON.stringify({param1:"param1",param2:"param2",url:"http://xxxx?a=a&b=b&c=c",param3:"param3"}),//参数列表           dataType:"json",           success: function(result){              //请求正确之后的操作           },           error: function(result){              //请求失败之后的操作           }    });});

View the request parameters as follows:

With this json.stringify ({}) encapsulated, is the Ajax transmission of the time of the problem, with the data: ' Data= ' +data, so that the value is a problem, but with data:{data:data}, you can, is why?

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