下载依赖 jar 包   json.jar package com.json7;import org.json.JSONObject;public class Test{    public static void main(String[] args)    {        /*         题目: 建立一个 House 类(编号, 房东,房屋描述,房屋价格,是否出租)              将 House 的一个对象转成 JSON 字符串         */                //新建一个 House 对象        House h=new House(1,"刘虎","2室1厅",4000,true);                //将 House 对象转成 JSON 字符串        JSONObject jsonObj=new JSONObject(h);        System.out.println(jsonObj.toString());            }}package com.json7;public class House{    //编号, 房东,房屋描述,房屋价格,是否出租    private int id;    private String owner;    private String description;    private double price;    private boolean isRent;    public House(int id, String owner, String description, double price,            boolean isRent)    {        super();        this.id = id;        this.owner = owner;        this.description = description;        this.price = price;        this.isRent = isRent;    }    public int getId()    {        return id;    }    public void setId(int id)    {        this.id = id;    }    public String getOwner()    {        return owner;    }    public void setOwner(String owner)    {        this.owner = owner;    }    public String getDescription()    {        return description;    }    public void setDescription(String description)    {        this.description = description;    }    public double getPrice()    {        return price;    }    public void setPrice(double price)    {        this.price = price;    }    public boolean isRent()    {        return isRent;    }    public void setRent(boolean isRent)    {        this.isRent = isRent;    }        }