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C#将对象序列化成JSON字符串
public string GetJsonString()
{
List<Product> products = new List<Product>(){
new Product(){Name="苹果",Price=5.5},
new Product(){Name="橘子",Price=2.5},
new Product(){Name="干柿子",Price=16.00}
};
ProductList productlist = new ProductList();
productlist.GetProducts = products;
return new JavaScriptSerializer().Serialize(productlist));
}
public class Product
{
public string Name { get; set; }
public double Price { get; set; }
}
public class ProductList
{
public List<Product> GetProducts { get; set; }
}
这里主要是使用JavaScriptSerializer来实现序列化操作，这样我们就可以把对象转换成Json格式的字符串，生成的结果如下：
{"GetProducts":[{"Name":"苹果","Price":5.5},{"Name":"橘子","Price":2.5},{"Name":"柿子","Price":16}]}
如何将Json字符串转换成对象使用呢？
在实际开发中，经常有可能遇到用JS传递一个Json格式的字符串到后台使用，如果能自动将字符串转换成想要的对象，那进行遍历或其他操作时，就方便多了。那具体是如何实现的呢？
public static List<T> JSONStringToList<T>(this string JsonStr)
{
JavaScriptSerializer Serializer = new JavaScriptSerializer();
List<T> objs = Serializer.Deserialize<List<T>>(JsonStr);
return objs;
}
public static T Deserialize<T>(string json)
{
T obj = Activator.CreateInstance<T>();
using (MemoryStream ms = new MemoryStream(Encoding.UTF8.GetBytes(json)))
{
DataContractJsonSerializer serializer = new DataContractJsonSerializer(obj.GetType());
return (T)serializer.ReadObject(ms);
}
}
string JsonStr = "[{Name:‘苹果‘,Price:5.5},{Name:‘橘子‘,Price:2.5},{Name:‘柿子‘,Price:16}]";
List<Product> products = new List<Product>();
products = JSONStringToList<Product>(JsonStr);
foreach (var item in products)
{
Response.Write(item.Name + ":" + item.Price + "<br />");
}
public class Product
{
public string Name { get; set; }
public double Price { get; set; }
}
在上面的例子中，可以很方便的将Json字符串转换成List对象，操作的时候就方便多了~
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C#将对象序列化成JSON字符串
using System.Web.Script;
using System.Web.Script.Serialization;
JavaScriptSerializer serializer = new JavaScriptSerializer();
foreach (DataRow dr in dt.Rows)
{
Dictionary<string, string> data = new Dictionary<string, string>();
data.Add("Dev_NO", dr["Dev_NO"].ToString());
data.Add("Dev_Name", dr["Dev_Name"].ToString());
data.Add("Ol_Phone", dr["Ol_Phone"].ToString());
data.Add("Ol_IP", dr["Ol_IP"].ToString());
data.Add("Ol_Status", dr["Ol_Status"].ToString());
list.Add(data);
}
Response.Write(serializer.Serialize(list));
输出结果为：
[{"Dev_NO":"00066666","Dev_Name":"test","Ol_Phone":"13766668888","Ol_IP":"10.196.209.174","Ol_Status":"2"},{"Dev_NO":"000F0000","Dev_Name":"test_hzlkhq","Ol_Phone":"13066668888","Ol_IP":"192.168.1.198","Ol_Status":"2"}]
如何将Json字符串转换成对象使用呢？
public class Model
{
public string Dev_NO { get; set; }
public string Dev_Name { get; set; }
public string Ol_Phone { get; set; }
public string Ol_IP { get; set; }
public int Ol_Status { get; set; }
}
string requestMes="[{\"Dev_NO\":\"00066666\",\"Dev_Name\":\"test\",\"Ol_Phone\":\"13766668888\",\"Ol_IP\":\"10.196.209.174\",\"Ol_Status\":\"2\"},{\"Dev_NO\":\"000F0000\",\"Dev_Name\":\"test_hzlkhq\",\"Ol_Phone\":\"13066668888\",\"Ol_IP\":\"192.168.1.198\",\"Ol_Status\":\"2\"}]";
JavaScriptSerializer serializer = new JavaScriptSerializer();
var Json = serializer.Deserialize<List<Model>>(requestMes);
第二种使用DataContractJsonSerializer，适用通用平台
需要添加引用：System.ServiceModel.Web 和 System.Runtime.Serialization，然后使用Using：
using System.Runtime.Serialization.Json;
using System.Runtime.Serialization;
//--------------------------
public class Model
{
public string Dev_NO { get; set; }
public string Dev_Name { get; set; }
public string Ol_Phone { get; set; }
public string Ol_IP { get; set; }
public int Ol_Status { get; set; }
}
public class Test
{
public static DataTable getData()
{
var a = "{\"Dev_NO\":\"00066666\",\"Dev_Name\":\"test\",\"Ol_Phone\":\"13766668888\",\"Ol_IP\":\"10.196.209.174\",\"Ol_Status\":\"2\"}";
var serializer = new DataContractJsonSerializer(typeof(List<DTUModel>));
var mStream = new MemoryStream(Encoding.UTF8.GetBytes(a.ToString()));
List<DTUModel> list = (List<DTUModel>)serializer.ReadObject(mStream);
DataTable dt = new DataTable();
return dt;
}
}
转： 善待自己,珍惜今天,恩泽他人,享受生活 C# JSON字符串序列化与反序列化（转）
转：http://blog.csdn.net/cjw13860421089/article/details/26374969
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原文地址：http://www.cnblogs.com/wangfuyou/p/5487495.html
