我如何使用ajax从数据库中获取值到jsp文件

Question

我如何使用ajax连接到sql并使用ajax从数据库中获取值到jsp文件

js文件：

$(document).ready(function() {

    $("#btnList").click(function() {
        window.location.href = "http://localhost:8087/salutationlist";
    });
    $("#btnSave").click(function() {
        var code=$("#txtCode").val();
        var name=$("#txtName").val();
        var genderID=$("#txtGender").val();

        var details = {
                "code" : "code",
                "name" : "name",
                "genderID" :"genderID",
                "activeYN":true
        };

        $.ajax({
            url : "http://localhost:8088/save",
            type : "POST",
            data : JSON.stringify(details),
            dataType : "json",
            contentType :"application/json; charset=utf-8",
            success: function(response){

            },
        'error' : function(request,error)
        {
            alert("Request: "+JSON.stringify(request));
        }
        });


    });
});