在前臺(tái)使用JQuery和AJAX的時(shí)候經(jīng)常會(huì)需要后臺(tái)返回JSON數(shù)據(jù),以前我的做法是直接拼成的,后來(lái)才知道.net3.5支持JSON了,今天特別做了幾個(gè)例子方便不會(huì)的朋友。高手們就不要看了

創(chuàng)新互聯(lián)公司是一家集網(wǎng)站建設(shè),南皮企業(yè)網(wǎng)站建設(shè),南皮品牌網(wǎng)站建設(shè),網(wǎng)站定制,南皮網(wǎng)站建設(shè)報(bào)價(jià),網(wǎng)絡(luò)營(yíng)銷(xiāo),網(wǎng)絡(luò)優(yōu)化,南皮網(wǎng)站推廣為一體的創(chuàng)新建站企業(yè)，幫助傳統(tǒng)企業(yè)提升企業(yè)形象加強(qiáng)企業(yè)競(jìng)爭(zhēng)力。可充分滿(mǎn)足這一群體相比中小企業(yè)更為豐富、高端、多元的互聯(lián)網(wǎng)需求。同時(shí)我們時(shí)刻保持專(zhuān)業(yè)、時(shí)尚、前沿，時(shí)刻以成就客戶(hù)成長(zhǎng)自我，堅(jiān)持不斷學(xué)習(xí)、思考、沉淀、凈化自己，讓我們?yōu)楦嗟钠髽I(yè)打造出實(shí)用型網(wǎng)站。

Namespace: System.Runtime.Serialization.Json
Assembly: System.ServiceModel.Web (in System.ServiceModel.Web.dll)
只支持.net3.5

例1：
Hashtable ht =new Hashtable();
ht.Add("A","值1");
ht.Add("B","值2");
DataContractJsonSerializer _json = new DataContractJsonSerializer(ht.GetType());
_json.WriteObject(Response.OutputStream, ht);

值為：[{"Key":"A","Value":"值1"},{"Key":"B","Value":"值2"}]

例2：
[Serializable]
public class Person
{
   public string Name { get; set; }
   public string Address { get; set; }
   public string Tel { get; set; }
}

Person _Person = new Person();
_Person.Name = "江湖小子";
_Person.Address = "北京";
_Person.Tel = "010-10000000";

DataContractJsonSerializer _json = new DataContractJsonSerializer(_Person.GetType());
_json.WriteObject(Response.OutputStream, _Person);

值為：{"<Address>k__BackingField":"北京","<Name>k__BackingField":"江湖小子","<Tel>k__BackingField":"010-10000000"}

例3：

如果：{"<Address>k__BackingField":"北京","<Name>k__BackingField":"江湖小子","<Tel>k__BackingField":"010-10000000"}包含在文件中，可反序列化,文件需要是UTF-8格式

DataContractJsonSerializer _json = new DataContractJsonSerializer(typeof(Person));
using (FileStream fs = File.OpenRead(@"D: empp.txt"))
{
    Person p = _json.ReadObject(fs) as Person;
    Response.Write(p.Name);//江湖小子
}

例4：
//上面大家會(huì)覺(jué)得奇怪為什么會(huì)出現(xiàn)k__BackingField之類(lèi)的東東呢，其實(shí)是是[Serializable]造成的，我們可以用下面的方式處理
DataContractAttribute 類(lèi)說(shuō)明

[DataContract]
public class Person
{
   [DataMember(Order=1)]       // Order - 數(shù)據(jù)成員的序列化和反序列化的順序
   public string Name { get; set; }
   [DataMember(Order = 2)]
   public string Address { get; set; }
   [DataMember(Order = 3)]
   public string Tel { get; set; }
}

Person _Person = new Person();
_Person.Name = "江湖小子";
_Person.Address = "北京";
_Person.Tel = "010-10000000";

DataContractJsonSerializer _json = new DataContractJsonSerializer(typeof(Person));
_json.WriteObject(Response.OutputStream, _Person);

值為：{"Name":"江湖小子","Address":"北京","Tel":"010-10000000"}

例5：

Person _Person = new Person();
_Person.Name = "江湖小子";
_Person.Address = "北京";
_Person.Tel = "010-10000000";

DataContractJsonSerializer _json = new DataContractJsonSerializer(_Person.GetType());

// 序列化
MemoryStream ms = new MemoryStream();
_json.WriteObject(ms, _Person);
ms.Position = 0;
StreamReader sr = new StreamReader(ms);
string con = sr.ReadToEnd();
Response.Write(con);//{"Name":"江湖小子","Address":"北京","Tel":"010-10000000"}

// 反序列化
byte[] buffer = System.Text.Encoding.UTF8.GetBytes(con);
MemoryStream ms2 = new MemoryStream(buffer);
Person _Person2 = _json.ReadObject(ms2) as Person;
Response.Write(_Person2.Name);//江湖小子

更好的方法：

public class Province
{
   public int Id { get; set; }
   public string Name { get; set; }
}

using System.Web.Script.Serialization;//System.Web.Extensions.dll
public static string ToJSON(object obj)
   {
       JavaScriptSerializer serializer = new JavaScriptSerializer();
       return serializer.Serialize(obj);

   }

       Province p = new Province();
       p.Id = 123;
       p.Name = "北京";
       Response.Write(ToJSON(p));//{"Id":123,"Name":"北京"}

當(dāng)前名稱(chēng)：c#生成JSON.-創(chuàng)新互聯(lián)
轉(zhuǎn)載來(lái)于：http://chinadenli.net/article26/cepgjg.html

成都網(wǎng)站建設(shè)公司_創(chuàng)新互聯(lián)，為您提供定制開(kāi)發(fā)、營(yíng)銷(xiāo)型網(wǎng)站建設(shè)、靜態(tài)網(wǎng)站、品牌網(wǎng)站制作、網(wǎng)站收錄、網(wǎng)頁(yè)設(shè)計(jì)公司

廣告

聲明：本網(wǎng)站發(fā)布的內(nèi)容（圖片、視頻和文字）以用戶(hù)投稿、用戶(hù)轉(zhuǎn)載內(nèi)容為主，如果涉及侵權(quán)請(qǐng)盡快告知，我們將會(huì)在第一時(shí)間刪除。文章觀點(diǎn)不代表本網(wǎng)站立場(chǎng)，如需處理請(qǐng)聯(lián)系客服。電話(huà)：028-86922220；郵箱：631063699@qq.com。內(nèi)容未經(jīng)允許不得轉(zhuǎn)載，或轉(zhuǎn)載時(shí)需注明來(lái)源： 創(chuàng)新互聯(lián)