關(guān)于JSON的更多介紹,請(qǐng)各位自行g(shù)oogle了解！如果要我寫(xiě)的話，我也是去Google后copy!嘿嘿,一直以來(lái)很想學(xué)習(xí)json，大量的找資料和寫(xiě)demo，總算有點(diǎn)了解! 切入正題!
還是先封裝一個(gè)類(lèi)吧! 這個(gè)類(lèi)網(wǎng)上都可以找到的!有個(gè)這個(gè)類(lèi)，一切都將變得簡(jiǎn)單了，哈哈。
using System;using System.Collections.Generic;using System.Linq;using System.Web;using System.Runtime.Serialization.Json;using System.ServiceModel.Web;///記得引用這個(gè)命名空間using System.IO;using System.Text;/// <summary>/// Summary description for JsonHelper/// </summary>public class JsonHelper{ public JsonHelper() { // // TODO: Add constructor logic here // } /// <summary> /// 把對(duì)象序列化 JSON 字符串 /// </summary> /// <typeparam name="T">對(duì)象類(lèi)型</typeparam> /// <param name="obj">對(duì)象實(shí)體</param> /// <returns>JSON字符串</returns> public static string GetJson<T>(T obj) { //記住 添加引用 System.ServiceModel.Web /** * 如果不添加上面的引用,System.Runtime.Serialization.Json; Json是出不來(lái)的哦 * */ DataContractJsonSerializer json = new DataContractJsonSerializer(typeof(T)); using (MemoryStream ms = new MemoryStream()) { json.WriteObject(ms, obj); string szJson = Encoding.UTF8.GetString(ms.ToArray()); return szJson; } } /// <summary> /// 把JSON字符串還原為對(duì)象 /// </summary> /// <typeparam name="T">對(duì)象類(lèi)型</typeparam> /// <param name="szJson">JSON字符串</param> /// <returns>對(duì)象實(shí)體</returns> public static T ParseFormJson<T>(string szJson) { T obj = Activator.CreateInstance<T>(); using (MemoryStream ms = new MemoryStream (Encoding.UTF8.GetBytes(szJson))) { DataContractJsonSerializer dcj = new DataContractJsonSerializer(typeof(T)); return (T)dcj.ReadObject(ms); } }}測(cè)試實(shí)體類(lèi)：
public class TestData{ public TestData() { } public int Id { get; set; } public string Name { get; set; } public string Sex { get; set; }} 測(cè)試頁(yè)面：
<%@ Page Language="C#" %><!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><script runat="server"> protected void Page_Load(object sender, EventArgs e) { string jsonStr = string.Empty; List<TestData> tds = new List<TestData>(); //測(cè)試數(shù)據(jù) for (int i = 1; i < 4; i++) { tds.Add(new TestData() { Id = i, Name = "jinho" + i, Sex = "male" }); } //把一個(gè)list轉(zhuǎn)換為json字符串 jsonStr = JsonHelper.GetJson<List<TestData>>(tds); Response.Write(jsonStr); this.Page.ClientScript.RegisterStartupScript(this.GetType(), "json", "getJson(" + jsonStr + ");", true); } </script><script type="text/javascript"> function getJson(jsonStr) { //使用eval函數(shù) var json = eval(jsonStr); //因?yàn)樯厦鏋閘ist集合 for (var i = 0; i < json.length; i++) { alert(json[i].Id + "Name:" + json[i].Name); } }</script><html xmlns="http://www.w3.org/1999/xhtml"><head runat="server"> <title></title></head><body> <form id="form1" runat="server"> <div> </div> </form></body></html>
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