Jquery's ajax () function implements a solution for garbled Chinese characters, jqueryajax

Jquery's ajax () function implements a solution for garbled Chinese characters, jqueryajax

$. Ajax ({

DataType: 'json', type: 'post', url: 'http: // localhost/test. do ', data: {id: 1, type: 'item'}, success: function (data ){}});
Problem:
When the background action program is submitted, the type obtained is garbled
Solution:
Method 1: encodeURI is used for encoding before submission. Remember that it must be twice.
1. Modify the following code:
Data: {id: 1, type: encodeURI ('item '))}

2. decode the obtained string in the background action.

1. String type = request. getParameter ("type ");

2. type = URLDecoder. decode (type, "UTF-8 ″);

Method 2: ajax configure the contentType attribute, add charset = UTF-8
Add the following parameters to the ajax method:
ContentType: "application/x-www-form-urlencoded; charset = UTF-8" use other js frameworks or xhr are similar, set the contentType in the header,
The key here is charset = UTF-8, if there is no such, it will not work, the default contentType in jQuery is not

Problem:

Garbled characters appear when jquery ajax finishes processing data in the background and passes it to the front-end jsp page.

Solution: add this sentence to the background Java code, response. setCharacterEncoding ("UTF-8 ");