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)類吧! 這個(gè)類網(wǎng)上都可以找到的!有個(gè)這個(gè)類，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)象類型/typeparam>
/// param name="obj">對(duì)象實(shí)體/param>
/// returns>JSON字符串/returns>
public static string GetJsonT>(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)象類型/typeparam>
/// param name="szJson">JSON字符串/param>
/// returns>對(duì)象實(shí)體/returns>
public static T ParseFormJsonT>(string szJson)
{
T obj = Activator.CreateInstanceT>();
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：
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;
ListTestData> tds = new ListTestData>();
//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.GetJsonListTestData>>(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>
關(guān)于json字符串轉(zhuǎn)換為實(shí)體請(qǐng)各位自己測(cè)試吧！只要有上面那個(gè)JsonHelper 類，一切都好辦！
以上就是本文的全部?jī)?nèi)容，希望對(duì)大家的學(xué)習(xí)有所幫助，也希望大家多多支持腳本之家。
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