Gson的简单使用

╰半橙微兮° 2022-07-15 00:16 224阅读 0赞

数据类：

package com.example.cuboo.myapplication;
    
    /**
     * Created by cuboo on 2016/10/26.
     */
    
    public class weatherinfo {
        private String city;
    
        private String temp;
    
        private String time;
    
        public String getCity() {
            return city;
        }
    
        public void setCity(String city) {
            this.city = city;
        }
    
        public String getTemp() {
            return temp;
        }
    
        public void setTemp(String temp) {
            this.temp = temp;
        }
    
        public String getTime() {
            return time;
        }
    
        public void setTime(String time) {
            this.time = time;
        }
    }

package com.example.cuboo.myapplication;
    
    /**
     * Created by cuboo on 2016/10/26.
     */
    
    public class weather {
        private weatherinfo weatherinfo;
    
        public weatherinfo getWeatherinfo() {
            return weatherinfo;
        }
    
        public void setWeatherinfo(weatherinfo weatherinfo) {
            this.weatherinfo = weatherinfo;
        }
    }

使用方法：

Gson gson = new Gson();
            weatherinfo w = new weatherinfo();
            w.setCity("长沙");
            w.setTime("2016.10.26");
            w.setTemp("test");
            weather ww = new weather();
            ww.setWeatherinfo(w);
            //toJason()方法将对象转换成Json字符串
            System.out.println(gson.toJson(ww));
            //解析json
            System.out.println(gson.fromJson(gson.toJson(w),weatherinfo.class).getCity());

输出结果：

System.out: \{"weatherinfo":\{"city":"长沙","temp":"test","time":"2016.10.26"\}\}  
System.out: 长沙