.Net Json格式序列化

using System.Web.Script.Serialization;

using System.Runtime.Serialization.Json;

/// <summary>
/// json格式序列化
/// </summary>
public class JsonList : IHttpHandler
{
public void ProcessRequest(HttpContext context)
{
//context.Response.ContentType = "text/plain";
context.Response.ContentType = "application/json";
context.Response.ContentEncoding = System.Text.Encoding.UTF8;

HttpRequest Request = context.Request;
HttpResponse Response = context.Response;
string action = Request.Form["action"];
string OrderNum = context.Request["ordernum"];

ArrayList tmp = new ArrayList();
tmp.Add("{\"gName\":\"张三1\",\"description\":\"描述1\"}");
tmp.Add("{\"gName\":\"张三2\",\"description\":\"描述2\"}");
tmp.Add("{\"gName\":\"张三3\",\"description\":\"描述3\"}");
tmp.Add("{\"gName\":\"张三4\",\"description\":\"描述4\"}");
tmp.Add("{\"gName\":\"张三5\",\"description\":\"描述5\"}");
tmp.Add("{\"gName\":\"张三6\",\"description\":\"描述6\"}");
tmp.Add("{\"gName\":\"张三7\",\"description\":\"描述7\"}");
tmp.Add("{\"gName\":\"张三8\",\"description\":\"描述8\"}");
tmp.Add("{\"gName\":\"张三9\",\"description\":\"描述9\"}");
tmp.Add("{\"gName\":\"张三10\",\"description\":\"描述10\"}");

if (action == "one")
{
JavaScriptSerializer js = new JavaScriptSerializer();
Employee emp = new Employee()
{
gName = "梦之队",
description = "描述"
};
string jsonResult = "[" + js.Serialize(emp) + "]";
context.Response.Write(jsonResult);
}
else if (action == "two")
{
Employee emp = new Employee();
emp.gName = "方式二";
emp.description = "描述";
string jsonResult = "[" + this.JsonSerializa<Employee>(emp) + "]";
context.Response.Write(jsonResult);
}
else if (action == "three")
{
/*用javaScriptSerializer来生成JSON数据*/
var employees = new List<Employee>();
employees.Add(new Employee
{
gName = "张三方式三",
description = "描述1"
});
employees.Add(new Employee
{
gName = "张三方式三",
description = "描述2"
});
JavaScriptSerializer javaScriptSerializer = new JavaScriptSerializer();
var jsonResult = javaScriptSerializer.Serialize(employees);
context.Response.Write(jsonResult);
}
else
{
string jsonResult = "[" + string.Join(",", (string[])tmp.ToArray(typeof(string))) + "]";
context.Response.Write(jsonResult);
}
}

/// <summary>
/// json序列号
/// </summary>
/// <typeparam name="T"></typeparam>
/// <param name="t"></param>
/// <returns></returns>
public string JsonSerializa<T>(T t)
{
DataContractJsonSerializer zer = new DataContractJsonSerializer(typeof(T));
MemoryStream ms = new MemoryStream();
zer.WriteObject(ms, t);
string jsonstring = Encoding.UTF8.GetString(ms.ToArray());
ms.Close();
return jsonstring;
}

public bool IsReusable
{
get
{
return false;
}
}
}

public class Employee
{
public string description { get; set; }
public string gName { get; set; }
}

方式一：

后台处理

[HttpPost]public JsonResult SendEmail(){int success = 0;int fail = 0;int count = Convert.ToInt32(Request.Form["countnum"]);for (int i = 0; i < count; i++){if (i % 2 == 0)success += 1;elsefail += 1;}JsonResult jsonResult = new JsonResult{Data = new{successCount = success,failCount = fail,}};return Json(jsonResult);}

前台输出

function OpenEmail1() {$.ajax({url: "/tblGroups/SendEmail",type: 'post',data: {countnum: $("#hidCount").val()},beforeSend: function () {$("#loading").show();},error: function () {alert("出错了");},success: function (data) {$("#lblSuccess").html(data.Data.successCount);$("#lblFail").html(data.Data.failCount);$("#loading").hide();$("#emailDIV").show();$("#fade").show();}});}

方式二：

后台代码：

[HttpPost]
public JsonResult GetModel(FormCollection collection)
{string Action = collection["action"].ToString();string strid = Request.Form["id"].ToString();Guid id = new Guid(strid);return Json(GetGroupsModel(id));
}/// <summary>
/// 返回一个实体
/// </summary>
/// <param name="gid">id</param>
/// <returns></returns>
private IEnumerable<tblGroups> GetGroupsModel(Guid gid)
{var query = from g in db.tblGroupswhere g.Id == gidselect new{Id = g.Id,Name = g.Name,Description = g.Description,SumCount = (from m in db.tblMemberswhere m.GroupId == g.Idselect m).Count()};return query.ToList().Select(C => new tblGroups{Id = C.Id,Name = C.Name,Description = C.Description,CountNum = C.SumCount});
}

前台代码：

function OpenWin(id) {$("#light").show();$("#fade").show();$.ajax({url: "/tblGroups/GetModel",type: 'post',data: {action: "GetModel",id: id},success: function (data) {for (var i = 0; i < data.length; i++) {$("#lblName").html(data[i].Name);$("#lblCount").html(data[i].CountNum);$("#hidCount").val(data[i].CountNum);}}});
}

结果集是object类型循环输出

function sel() {$.ajax({url: "/Trace/select",type: "post",data: {name: $("#selBatch").val()},success: function (data) {var objs = data;var str = "";$("#tbd").html("");for (var n in objs){str += "<tr>";str += "<td>" + objs[n].BatchID + "</td>";str += "<td>" + objs[n].Path + "</td>";str += "</tr>";}$("#tbd").html(str);}});
}

Ajax请求

function InitData(pageindx, ofile, otype) {
$.ajax({url: '/Campaign/Ajax_Read',  //请求地址type: 'POST',                //请求方法dataType: 'json',            //返回数据类型(json，xml，html)data: {                      //传递参数action: 'paging',pagenum: pageindx,orderFile: ofile,orderType: otype},beforeSend: function () {    //发送请求前$("#loading").show();},error: function () {         //出现错误时提示状态alert("出错了");},complete: function() {       //请求完成后alert("请求完成后提示信息")},success: function(data) {    //请求成功时返回数据var objs = jQuery.parseJSON(data);for (var i = 0; i < objs.length; i++) {$("#lblSuccess").html(objs[i].successCount);$("#lblFail").html(objs[i].failCount);}}})
}

async设置异步同步并设置数组

function createRandomData() {$.ajax({url: '/Handler/JsonList.ashx',type: 'POST',async: false,data: {action: ''},success: function(responseText) {var re = responseText.toJson();var data123 = [];$.each(re, function(i, n) {data123.push({Id: i + 1,GroupName: n.gName,Description: n.description,Member: n.member,Email: n.email});});}});
}

方式三

后台代码

DataSet ds = DbHelperSQL.Query(sql.ToString());ArrayList tmp = new ArrayList();for (int i = 0; i < ds.Tables[0].Rows.Count; i++){tmp.Add("{Times:" + ds.Tables[0].Rows[i]["Times"] + "," +"Totals:" + ds.Tables[0].Rows[i]["Totals"] + "," +"Drinking:" + ds.Tables[0].Rows[i]["Drinking"] + "," +"Surplus:" + ds.Tables[0].Rows[i]["Surplus"] + "}");}string jsonResult = "[" + string.Join(",", (string[])tmp.ToArray(typeof(string))) + "]";return jsonResult;

前台代码

$.ajax({async: false,url: "@Url.Action("GetModel", "BarChart")",type: 'post',data: {name: name,area: area,begin: begin,end: end},success: function (data) {var objs = eval(data);for (var i = 0; i < objs.length; i++) {dataTime.push(objs[i].Times);dataDrinking.push(objs[i].Drinking);dataSurplus.push(objs[i].Surplus);}}});

后台object循环输出

ResultMessage<object> result = new ResultMessage<object>();
result = busi.GetListBatch();
string[] arr = result.Data as string[];
List<SelectListItem> select1 = new List<SelectListItem>();
select1.Add(new SelectListItem { Text = "请选择...", Value = "" });
for (int i = 0; i < arr.Length; i++)
{select1.Add(new SelectListItem{Text = arr[i].ToString(),Value = arr[i].ToString()});
}

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