Solution to garbled JSP page Request Parameters

A small problem occurred during development over the past few days. The form parameters uploaded to the backend by JSP pages are garbled.

The encoding format of my JSP page is UTF-8 and the request is set. setCharacterEncoding ("UTF-8"), and finally found the problem. The colleague assigned a constant in the struts file: <constant name = "struts. i18n. encoding "value =" GBK "/>. After checking the function of this constant on the Internet, the problem is locked.

This constant is equivalent to request. setCharacterEncoding ("gbk"), so my request parameters have undergone two encoding times, one being UTF-8 and then gbk, so there is a problem.

If this constant is not set, the default value is UTF-8.