json example

最新推荐文章于 2024-12-27 15:02:07 发布

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最新推荐文章于 2024-12-27 15:02:07 发布

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分类专栏： Java 文章标签： json object bean string user

本文链接：https://blog.youkuaiyun.com/mutoudianxian/article/details/2775721

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本文介绍了一个用户对象的定义及如何将其封装为JSON格式的过程。包括基本属性如用户名、年龄等，以及更复杂的数据结构，例如联系信息和地址列表。通过Java示例展示了对象创建、JSON转换及属性访问的方法。

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Define user object

function showJSON() {
var user =
{
"username":"andy",
"age":20,
"info": { "tel": "123456", "cellphone": "98765"},
"address":
[
{"city":"beijing","postcode":"222333"},
{"city":"newyork","postcode":"555666"}
]
}
alert(user.username);
alert(user.age);
alert(user.info.cellphone);
alert(user.address[0].city);
alert(user.address[0].postcode);
}

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();
        }
    }
}