C＃ JObject解析JSON数据

1.引用DLL文件

在项目中引用Newtonsoft.Json.dll

2.解析简单json数据

//生成json类型数据
JObject obj = new JObject();
obj.Add("key1", "value1");
obj.Add("key2", "value2");
obj.Add("key3", 3);
String response = obj.ToString();
Console.WriteLine(response);
Console.WriteLine("=================================");

 //解析数值
JObject joResponse = (JObject)JsonConvert.DeserializeObject(response);
Console.WriteLine(joResponse["key1"].ToString());
Console.WriteLine(joResponse["key2"].ToString());
Console.WriteLine(joResponse["key3"].ToString());

3.解析json数组

//生成数组
JArray jarray = new JArray();
JObject jobj = new JObject();
jobj.Add("name", "张三");
jobj.Add("age", 18);
jobj.Add("sex", "男");

JObject jobj2 = new JObject();
jobj2.Add("name", "李四");
jobj2.Add("age", 18);
jobj2.Add("sex", "女");

jarray.Add(jobj);
jarray.Add(jobj2);
String response = jarray.ToString();
Console.WriteLine(response);
Console.WriteLine("============================================");

 //解析数组
JArray ja = (JArray)JsonConvert.DeserializeObject(response);
//获取数值
foreach (JObject jo in ja)
{
       string name = jo["name"].ToString();
       string age = jo["age"].ToString();
       string sex = jo["sex"].ToString();
       Console.WriteLine("name="+name + ", age=" + age+", sex=" + sex);
}

//单个数值获取
JObject joo = (JObject)ja[1];
string name2 = joo["name"].ToString();
Console.WriteLine("name2="+name2);
string age2 = joo["age"].ToString();
Console.WriteLine("age2=" + age2);
string sex2 = joo["sex"].ToString();
Console.WriteLine("sex2=" + sex2);