使用C#中JavaScriptSerializer类将对象转换为Json格式数据
将对象转换为json格式字符串：
private JavaScriptSerializer serializer = new JavaScriptSerializer(); protected void Page_Load(object sender, EventArgs e) { Books book = new Books(); book.BookId = 1; book.BookName = "书籍1"; book.BookCount = 999; string jsonStr = serializer.Serialize(book); //jsonStr结果:{"BookId":1,"BookName":"书籍1","BookCount":999} }
Aspx前台页面，jQuery发送Ajax请求：
function loadrecomticket() { jQuery.post( "/Ajax/TicketBoxAsx.ashx", { ajaxMethod: "getrecomticket", random: Math.random() }, function(data) { if (data.result) { //面向对象思想：把返回的对象data，直接data.result，类似对象.属性名 $("#M1_LeftCount").html(data.list[0].leftCount); $("#M1_GetCount").html(data.list[0].GetCount); $("#M_UsedCount").html(data.list[0].UsedCount); $("#M2_LeftCount").html(data.list[1].LeftCount); $("#M2_GetCount").html(data.list[1].GetCount); $("#M2_UsedCount0").html(data.list[1].UsedCount); $("#M3_LeftCount").html(data.list[2].LeftCount); $("#M3_Getcount").html(data.list[2].GetCount); $("#M3_UsedCount").html(data.list[2].UsedCount); } }, "json"); }
一般处理程序接收参数并处理请求，返回json格式数据：
namespace Test.Ajax { /// <summary> /// $codebehindclassname$ 的摘要说明 /// </summary> [WebService(Namespace = "http://tempuri.org/")] [WebServiceBinding(ConformsTo = WsiProfiles.BasicProfile1_1)] public class TicketBoxAsx : BaseCommon, IHttpHandler { private Business.RecomTicket recomTicket = new Business.RecomTicket(); public void ProcessRequest(HttpContext context) { if (this.UserId > 0) { if (!string.IsNullOrEmpty(context.Request["ajaxMethod"])) { context.Response.ContentType = "text/plain"; string ajaxMethod = context.Request["ajaxMethod"].ToLower(); switch (ajaxMethod) { case "getrecomticket": GetRecomTicket(context); break; } } } else { Utility.ResponseWriteEnd(this.ProcessResponseText("({result:0,error:'请先登录！'})")); } } public bool IsReusable { get { return false; } } private void GetRecomTicket(HttpContext context) { TicketBoxInfo M1 = new TicketBoxInfo(); //创建3个对象 TicketBoxInfo M2 = new TicketBoxInfo(); TicketBoxInfo M3 = new TicketBoxInfo(); BusinessResult<RecomTicketInfo> info = this.recomTicket.GetUserVoteTicket(this.UserId); if (info.IsSuccess) { RecomTicketInfo recomTicketInfo = info.ReturnObject;
//为3个对象属性赋值 M1.leftCount = Math.Max(recomTicketInfo.MaxRecomTicket - recomTicketInfo.TodayUsedRecomTicket, 0);
M1.MGetCount = recomTicketInfo.MaxRecomTicket;
M1.UsedCount = recomTicketInfo.TodayUsedRecomTicket;
M2.leftCount = Math.Max(recomTicketInfo.MaxRecomTicket - recomTicketInfo.TodayMMUsedRecomTicket, 0);
M2.MGetCount = recomTicketInfo.MaxRecomTicket;
M2.UsedCount = recomTicketInfo.TodayMMUsedRecomTicket;
M3.leftCount = Math.Max(recomTicketInfo.MaxRecomTicket - recomTicketInfo.TodayWXUsedRecomTicket, 0);
M3.MGetCount = recomTicketInfo.MaxRecomTicket; M3.UsedCount = recomTicketInfo.TodayWXUsedRecomTicket; } JavaScriptSerializer js = new JavaScriptSerializer(); //命名空间：using System.Web.Script.Serialization; Utility.ResponseWriteEnd(this.ProcessResponseText("({result:1, list:[" + js.Serialize(M1) + "," + js.Serialize(M2) + "," + js.Serialize(M3) + "]})")); } } }
备注：
JSON格式：
普通形式： { "firstName": "Brett", "lastName":"McLaughlin", "email": "aaaa" } 数组形式： 1.单元素： { "people": [ { "firstName": "Brett", "lastName":"McLaughlin", "email": "aaaa" }, { "firstName": "Jason", "lastName":"Hunter", "email": "bbbb"}, { "firstName": "Elliotte", "lastName":"Harold", "email": "cccc" } ] } 2.多元素： { "programmers": [ { "firstName": "Brett", "lastName":"McLaughlin", "email": "aaaa" }, { "firstName": "Jason", "lastName":"Hunter", "email": "bbbb" }, { "firstName": "Elliotte", "lastName":"Harold", "email": "cccc" } ], "authors": [ { "firstName": "Isaac", "lastName": "Asimov", "genre": "science fiction" }, { "firstName": "Tad", "lastName": "Williams", "genre": "fantasy" }, { "firstName": "Frank", "lastName": "Peretti", "genre": "christian fiction" } ], "musicians": [ { "firstName": "Eric", "lastName": "Clapton", "instrument": "guitar" }, { "firstName": "Sergei", "lastName": "Rachmaninoff", "instrument": "piano" } ] }
格式应用
掌握了 JSON 格式之后，在 JavaScript 中使用它就很简单了。JSON 是 JavaScript 原生格式，这意味着在 JavaScript 中处理 JSON 数据不需要任何特殊的 API 或工具包。
赋值给变量
例如，可以创建一个新的 JavaScript 变量，然后将 JSON 格式的数据字符串直接赋值给它：
var people = { "programmers": [ { "firstName": "Brett", "lastName":"McLaughlin", "email": "aaaa" },
{ "firstName": "Jason", "lastName":"Hunter", "email": "bbbb" },
{ "firstName": "Elliotte", "lastName":"Harold", "email": "cccc" }
],
"authors": [
{ "firstName": "Isaac", "lastName": "Asimov", "genre": "science fiction" },
{ "firstName": "Tad", "lastName": "Williams", "genre": "fantasy" },
{ "firstName": "Frank", "lastName": "Peretti", "genre": "christian fiction" }
],
"musicians": [
{ "firstName": "Eric", "lastName": "Clapton", "instrument": "guitar" },
{ "firstName": "Sergei", "lastName": "Rachmaninoff", "instrument": "piano" }
数据访问： people.authors[1].genre // Value is "fantasy" 下标从0开始 people.musicians[3].lastName // Undefined. This refers to the fourth entry, and there isn't one people.programmers[2].firstName // Value is "Elliotte"
博文推荐：C# JSON字符串序列化与反序列化
格式应用
掌握了 JSON 格式之后，在 JavaScript 中使用它就很简单了。JSON 是 JavaScript 原生格式，这意味着在 JavaScript 中处理 JSON 数据不需要任何特殊的 API 或工具包。
赋值给变量
例如，可以创建一个新的 JavaScript 变量，然后将 JSON 格式的数据字符串直接赋值给它：
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var people = { "programmers": [ { "firstName": "Brett", "lastName":"McLaughlin", "email": "aaaa" },{ "firstName": "Jason", "lastName":"Hunter", "email": "bbbb" },{ "firstName": "Elliotte", "lastName":"Harold", "email": "cccc" }],"authors": [{ "firstName": "Isaac", "lastName": "Asimov", "genre": "science fiction" },{ "firstName": "Tad", "lastName": "Williams", "genre": "fantasy" },{ "firstName": "Frank", "lastName": "Peretti", "genre": "christian fiction" }],"musicians": [{ "firstName": "Eric", "lastName": "Clapton", "instrument": "guitar" },{ "firstName": "Sergei", "lastName": "Rachmaninoff", "instrument": "piano" } |
