url传中文，乱码，即便charset为 UTF-8，

$.ajax({

    type: "POST",

    cache: false,

    url: "/ProductTypeAndCat/AddType?typeName=" + typeName,

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

    datatype: "JSON",

});

data传中文，正确。

$.ajax({

    type: "POST",

    cache: false,

    url: "/ProductTypeAndCat/AddType",

    data: {typeName:typeName},

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

    datatype: "JSON",

    success: function (data) {

        if (data.F == 0) {

            alert("添加陈功");

            location.href = "/Admin/ProductType";

        }

        else {

            alert(data.M);

        }

    },

    error: function (xhr, status, error) {

        alert(error);

    }

});