.Net中jQuery.ajax()调用asp.net后台方法 总结

利用JQuery的$.ajax()调用.Net后台方法有多种方式，

不多说了  直接上代码

前台代码

 <script type="text/javascript">        

         $(document).ready(function () {
             getTreeData(getData());
         });

         //获取ajax调用传参方法
         function getData() {
             var data = {};
             data.username = "an";
             data.id = "2";
             return data;
         }

         var getTreeData = function (data) {
             $.ajax({
                 //界面URL传参数调用
                 url: "Edit_super.aspx?method=GetNodeData&dataId=1",
                 type: "POST",
                 contentType: "application/json; charset=utf-8",
                 dataType: "json",
                 //Response.Write 方式返回数据
                 success: function (dataReturn) {
                     $.fn.zTree.init($("#treeDemo"), setting, dataReturn);
                     $("#selectAll").bind("click", selectAll);
                 },
                 error: function () {
                 }
             });
         };

         var getTreeData = function (data) {
             $.ajax({
                 // 调用后台方法方式
                 url: "Edit_super.aspx/GetValueAjax",
                 //传入参数
                 data: "{id:'" + data.id + "'}",
                 type: "POST",
                 contentType: "application/json; charset=utf-8",
                 dataType: "json",
                 //解析返回的json数据
                 success: function (dataReturn) {
                     var datar=$.parseJSON(dataReturn.d);
                     $.fn.zTree.init($("#treeDemo"), setting, datar);
                     $("#selectAll").bind("click", selectAll);
                 },
                 error: function () {
                 }
             });
         };

         var getTreeData = function (data) {
             //MVC  调用方式
             $.ajax({
                 url: '../GetValue/GetValueAjax',
                 type: "POST",
                 data: data,
                 success: function (dataReturn) {
                     //解析返回数据
                     var ss = $.parseJSON(dataReturn);
                 },
                 error: function () {
                 }
             });
         };
 </script>   

后台代码

   protected void Page_Load(object sender, EventArgs e)
         {
             switch (Request["method"])
             {
                 case "GetNodeData": GetNodeData(); break;
             }
         }

         /// <summary>
         /// 界面URL传参数调用
         /// </summary>
         public void GetNodeData( )
         {
             string dataId = Request["dataId"];

             List<JosnModel> josnModels = new List<JosnModel>();

             JosnModel model1 = new JosnModel() { id = , name = "父节点1", open = true, pId = , isLastNode = false };
             JosnModel model2 = new JosnModel() { id = , name = "父节点1-1", pId = , isLastNode = false };
             JosnModel model3 = new JosnModel() { id = , name = "父节点1-2", pId = , isLastNode = false };
             JosnModel model4 = new JosnModel() { id = , name = "父节点1-3", pId = , isLastNode = false };
             JosnModel model5 = new JosnModel() { id = , name = "父节点2", open = true, pId = , isLastNode = false };
             JosnModel model6 = new JosnModel() { id = , name = "父节点2-1", pId = , isLastNode = false };
             JosnModel model7 = new JosnModel() { id = , name = "父节点3", open = true, pId = , isLastNode = false };
             JosnModel model8 = new JosnModel() { id = , name = "父节点3-1", pId = , isLastNode = false };
             josnModels.Add(model1);
             josnModels.Add(model2);
             josnModels.Add(model3);
             josnModels.Add(model4);
             josnModels.Add(model5);
             josnModels.Add(model6);
             josnModels.Add(model7);
             josnModels.Add(model8);

             string nodeData = new JavaScriptSerializer().Serialize(josnModels);

             Response.Clear();
             Response.Write(nodeData);
             Response.End();
         }

         /// <summary>
         /// 调用后台方法方式
         /// </summary>
         /// <param name="id"></param>
         /// <returns></returns>
         [WebMethod]   // 静态方法 并且要有[WebMethod] 标志
         public static string GetValueAjax(string id)
         {
             string dataId = id;

             List<JosnModel> josnModels = new List<JosnModel>();

             JosnModel model1 = new JosnModel() { id = , name = "父节点1", open = true, pId = , isLastNode = false };
             JosnModel model2 = new JosnModel() { id = , name = "父节点1-1", pId = , isLastNode = false };
             JosnModel model3 = new JosnModel() { id = , name = "父节点1-2", pId = , isLastNode = false };
             JosnModel model4 = new JosnModel() { id = , name = "父节点1-3", pId = , isLastNode = false };
             JosnModel model5 = new JosnModel() { id = , name = "父节点2", open = true, pId = , isLastNode = false };
             JosnModel model6 = new JosnModel() { id = , name = "父节点2-1", pId = , isLastNode = false };
             JosnModel model7 = new JosnModel() { id = , name = "父节点3", open = true, pId = , isLastNode = false };
             JosnModel model8 = new JosnModel() { id = , name = "父节点3-1", pId = , isLastNode = false };
             josnModels.Add(model1);
             josnModels.Add(model2);
             josnModels.Add(model3);
             josnModels.Add(model4);
             josnModels.Add(model5);
             josnModels.Add(model6);
             josnModels.Add(model7);
             josnModels.Add(model8);

             string nodeData = new JavaScriptSerializer().Serialize(josnModels);
             return nodeData;
         }

         /// <summary>
         /// MVC调用方法
         /// </summary>
         /// <returns></returns>
         public string GetValueAjax()
         {
             //获取传入的参数
             string nodeId= Request.Form["id"].ToString( );

             List<JosnModel> josnModels = new List<JosnModel>();
             JosnModel model1 = new JosnModel() { id = , name = "父节点1", open = true, pId = , isLastNode = false };
             JosnModel model2 = new JosnModel() { id = , name = "父节点1-1", pId = , isLastNode = false };
             JosnModel model3 = new JosnModel() { id = , name = "父节点1-2", pId = , isLastNode = false };
             JosnModel model4 = new JosnModel() { id = , name = "父节点1-3", pId = , isLastNode = false };
             JosnModel model5 = new JosnModel() { id = , name = "父节点2", open = true, pId = , isLastNode = false };
             JosnModel model6 = new JosnModel() { id = , name = "父节点2-1", pId = , isLastNode = false };
             JosnModel model7 = new JosnModel() { id = , name = "父节点3", open = true, pId = , isLastNode = false };
             JosnModel model8 = new JosnModel() { id = , name = "父节点3-1", pId = , isLastNode = false };
             josnModels.Add(model1);
             josnModels.Add(model2);
             josnModels.Add(model3);
             josnModels.Add(model4);
             josnModels.Add(model5);
             josnModels.Add(model6);
             josnModels.Add(model7);
             josnModels.Add(model8);

             string nodeData = new JavaScriptSerializer().Serialize(josnModels);
             return nodeData;
         }