json example

Define user object

2. function showJSON() {    
3.     var user =     
4.     {     
5.         "username":"andy",    
6.         "age":20,    
7.         "info": { "tel": "123456", "cellphone": "98765"},    
8.         "address":    
9.             [    
10.                 {"city":"beijing","postcode":"222333"},    
11.                 {"city":"newyork","postcode":"555666"}    
12.             ]    
13.     }    
14.         
15.     alert(user.username);    
16.     alert(user.age);    
17.     alert(user.info.cellphone);    
18.     alert(user.address[0].city);    
19.     alert(user.address[0].postcode);    
20. }    

follow example  , encapsulate bean to json

 

 

 

public class Users  implements java.io.Serializable ...{
    // Fields    
     private String userAccount;
     private String userPwd;

    // Constructors
    public Users() ...{
    }
    public Users(String userAccount, String userPwd) ...{
        this.userAccount = userAccount;
        this.userPwd = userPwd;
    }
   
    // Property accessors
    public String getUserAccount() ...{
        return this.userAccount;
    }
    
    public void setUserAccount(String userAccount) ...{
        this.userAccount = userAccount;
    }

    public String getUserPwd() ...{
        return this.userPwd;
    }
    
    public void setUserPwd(String userPwd) ...{
        this.userPwd = userPwd;
    }
   }

 

public class MMM ...{

    public static void main(String[] args) ...{
        Users u = new Users("张三","123456");
        JSONObject jo = new JSONObject(u);
        System.out.println(jo.toString());
        try ...{
            System.out.println(jo.get("userPwd"));
        } catch (JSONException e) ...{
            // TODO Auto-generated catch block
            e.printStackTrace();
        }
    }
}