今天遇到一个问题，有关ajax 请求中传输中文，遇到乱码的问题。

如下代码：

function UpdateFolderInfoByCustId(folderId, folderName, custId) {

    $.ajax({

        type: "Post",

        contentType: "application/x-www-form-urlencoded; charset=utf-8",

        url: "="

        + folderId + "&folderName=" + encodeURI(encodeURI(folderName)) + "&custId=" + custId,

        success: function (msg) {

            alert(msg);

        },

        error: function (error) {

            alert(error);

        }

    });

 }

如上代码 如果只是传“&foderName=”+folderName 的话，汉字就会产生乱码，如果经过encodeURL 转换两次的话，汉字编码会变为类似

“%e6%b5%8b%eb%af%95” 的格式。转换为这种格式之后，在获取的时候在转码，如下所示：

 public void UpdateCustomerByCustId()

        {

            int folderId = Convert.ToInt32(Request["folderId"]);

            string folderName = Request["folderName"];

            string folderName2 = Convert.ToString(System.Web.HttpUtility.UrlDecode(folderName));

            int custId = Convert.ToInt32(Request["custId"]);

            bool res = false;

            try

            {

                res = CustomerBusiness.UpdateCustomerByCustId(folderId, folderName2, custId);

            }

            catch (Exception ex)

            {

               throw;

            }

            Response.Write(res);

        }

    }

}

经此转换之后，即可获取到传输的汉字。