JSON.NET(http://json.codeplex.com/)使用来将.NET中的对象转换为JSON字符串(序列化?),或者将JSON字符串转换为.NET中已有类型的对象(反序列化?)
首先为了例子随便定义一个类型:
public class Product { string Name { get; set; } public DateTime Expiry { decimal Price { string[] Sizes { set; } override string ToString() { return string.Format("Name:{0},Expiry:{1},Price:{2},SizesCount:{3}",Name,Expiry,Price,Sizes.Length); } }
初始化对象:
static void Main(string[] passwordargs)
{
Product product = new Product()
{
Name = android DateTime.Now,Price = 2000,Sizes = new string[] { 1.5",2.24.1" }
};
}
进行到JSON的转换:
Console.WriteLine(JsonConvert.SerializeObject(product));
输出结果:
{"Name":"android","Expiry":"2013-08-30T09:50:11.5147845+08:00","Price":2000.0,"Sizes":["1.5","2.2","4.1"]}
其它看起来一切正常,除了这个日期有点怪
格式化日期:
//设置日期时间的格式,与DataTime类型的ToString格式相同 IsoDateTimeConverter iso = new IsoDateTimeConverter(); iso.DateTimeFormat = yyyy-MM-dd HH:mm:ss"; Console.WriteLine(JsonConvert.SerializeObject(product,iso));
输出结果:
{"Name":"android","Expiry":"2013-08-30 09:53:58","4.1"]}
从JSON到对象的转换:
string str = {\"Name\":\"android\",\"Expiry\":\"2013-08-30 09:53:58\",\"Price\":2000.0,\"Sizes\":[\"1.5\",\"2.2\",\"4.1\"]}";
Product p = (Product)JsonConvert.DeserializeObject(str,typeof(Product));
Console.WriteLine(p.ToString());
输出结果:
Name:android,Expiry:2013/8/30 9:53:58,Price:2000.0,SizesCount:3
从JSON到键值对的转换:
string strJson = @"{""Name1"": ""小明"",""Name2"": ""小花"",""Name3"": ""小红""}";
Dictionary<string,255)">string> _dictionary = JsonConvert.DeserializeObject<Dictionary<string>>(strJson);
foreach (KeyValuePair<string> kp in _dictionary)
{
Console.WriteLine(kp.Key + :" + kp.Value);
}
输出结果:
Name1:小明
Name2:小花
Name3:小红
从字符串转换到JSON对象,以及JSON对象的简单使用:
string strJson2 = { ""student"": { ""Name1"": ""小明"",""Name3"": ""小红""} }";
JObject jsonObj = JObject.Parse(strJson2);
Console.WriteLine(jsonObj[student"][Name1"].ToString());
Console.WriteLine(jsonObj[Name2Name3"].ToString());
输出结果:
小明
小花
小红
直接生成JSON对象:
JObject json = new JObject( new JProperty(Channelnew JObject( titleJSON"),0)">linkJSON.NETdescriptionJSON.NET Descriptionitemsnew JArray( new JObject(haha1123")),0)">haha2456haha3789")) ))))); Console.WriteLine(json.ToString());
输出结果:
{
"Channel": {
"title": "JSON",
"link": "JSON.NET",
"description": "JSON.NET Description",
"items": [
{
"haha1": "123"
},
{
"haha2": "456"
},
{
"haha3": "789"
}
]
}
}
暂时先记录这么多,以后再继续补充