以一个简易的引用和风api的天气预报APP教会你如何在android开发中解析JSON数据

一.JSON格式以及JSON数据字符的解析方式

首先，我们需要知道JSON的格式。那么JSON的格式是怎么样的呢？

{

“name”：“JY”，

“age”：22

}     

这就是一个最简单的JSON格式例子。JOSN格式采用的是key：value的键值相对应来写的，key是字符串，value为key的值，它有String，number，boolean，array等类型。key之间用“，”来隔开。

JAVA中传统解析JSON一般有三种方式：

首先你的生成一个JSON字符串，你可以这样生成

public static String createJsonString(String key, Object value) {
    JSONObject jsonObject = new JSONObject();
    jsonObject.put(key, value);
    return jsonObject.toString();
}

将JSON数据生成为

1.一个JavaBean，

2.一个List数组，

3.一个嵌套Map的List数组

在这里我推荐使用第一种方式（生成为一个JavaBean），因为在项目中一般需要对JSON数据中的key的value做一些处理，这时候JavaBean的好处就体现出来了，它相对于其他两种方式的使用更加灵活。

二.JSON之GSON

在android studio中有一个十分好用的插件，就是GsonFormat，它可以很方便的帮助我们将JSON数据字符串自动生成为一个JavaBean，用Gson来解析就很容易了。

当你在android studio安装好GsonFormat之后，使用步骤如下：

1.在Code中选中Generate

2.选中

3.将你获取到的JSON数据直接复制到里面去就可以一键生成你所需要的JavaBean

好，基础已经讲完。下面讲讲如何获取天气的JSON数据

三、接入和风天气api的天气预报demo

若想接入api，就需要一个app的key，这时候我们需要到和风天气的官网去注册一个账号，一般我们选个人开发者就好了，免费的api也算够我们测试使用。当然，如果你是公司项目使用需要更多的数据，你可以选择企业客户注册。

注册完成认证通过后你需要去控制台找到自己的认证key，因为api接入的参数中需要这个key

那么，我们应该怎么接入呢？别急嘛，人家有接入文档的嘛！

箭头所指的地方就是接入api的方式，parameters在下面有说明，自己可以根据自己的需要来接入，但是一定要有key

在这里，你可以将这个请求地址直接输入到浏览器中查看请求到的JSON数据是什么。不过，个人推荐使用postman来查看，因为不需要自己改格式，自动生成自己想要的格式，有没有觉得好方便。

好，直到现在，我们已经获取到我们需要的和风天气的JSON数据了，接下来就是如何在demo中将它生成为一个JavaBean以及解析它们了。

还记得我们前面说的android studio的插件GsonFormat嘛，对，没错，现在就是使用它的时候了.由于我当时是请求所有的免费天气api，所以代码很多很长，不过没关系，因为都不需要你去写这个代码，毕竟一键生成嘛，会用就行，对吧。

public class WeatherBean {

    private List HeWeather6;

    public List getHeWeather6() {
        return HeWeather6;
    }

    public void setHeWeather6(List HeWeather6) {
        this.HeWeather6 = HeWeather6;
    }

    public static class HeWeather6Bean {
        /**
         * basic : {"cid":"CN101010100","location":"北京","parent_city":"北京","admin_area":"北京","cnty":"中国","lat":"39.90498734","lon":"116.4052887","tz":"+8.00"}
         * update : {"loc":"2018-05-01 14:47","utc":"2018-05-01 06:47"}
         * status : ok
         * now : {"cloud":"0","cond_code":"504","cond_txt":"浮尘","fl":"18","hum":"26","pcpn":"0.0","pres":"1013","tmp":"21","vis":"10","wind_deg":"72","wind_dir":"东北风","wind_sc":"3","wind_spd":"14"}
         * daily_forecast : [{"cond_code_d":"504","cond_code_n":"101","cond_txt_d":"浮尘","cond_txt_n":"多云","date":"2018-05-01","hum":"35","mr":"20:19","ms":"06:13","pcpn":"0.0","pop":"0","pres":"1015","sr":"05:16","ss":"19:09","tmp_max":"24","tmp_min":"13","uv_index":"6","vis":"20","wind_deg":"3","wind_dir":"北风","wind_sc":"4-5","wind_spd":"33"},{"cond_code_d":"101","cond_code_n":"100","cond_txt_d":"多云","cond_txt_n":"晴","date":"2018-05-02","hum":"18","mr":"21:19","ms":"06:49","pcpn":"0.0","pop":"0","pres":"1020","sr":"05:15","ss":"19:10","tmp_max":"24","tmp_min":"13","uv_index":"6","vis":"20","wind_deg":"210","wind_dir":"西南风","wind_sc":"3-4","wind_spd":"21"},{"cond_code_d":"100","cond_code_n":"100","cond_txt_d":"晴","cond_txt_n":"晴","date":"2018-05-03","hum":"20","mr":"22:14","ms":"07:28","pcpn":"0.0","pop":"0","pres":"1022","sr":"05:13","ss":"19:11","tmp_max":"24","tmp_min":"13","uv_index":"7","vis":"20","wind_deg":"177","wind_dir":"南风","wind_sc":"1-2","wind_spd":"4"}]
         * lifestyle : [{"type":"comf","brf":"舒适","txt":"白天不太热也不太冷，风力不大，相信您在这样的天气条件下，应会感到比较清爽和舒适。"},{"type":"drsg","brf":"较舒适","txt":"建议着薄外套、开衫牛仔衫裤等服装。年老体弱者应适当添加衣物，宜着夹克衫、薄毛衣等。"},{"type":"flu","brf":"较易发","txt":"虽然温度适宜但风力较大，仍较易发生感冒，体质较弱的朋友请注意适当防护。"},{"type":"sport","brf":"较适宜","txt":"阴天，较适宜进行各种户内外运动。"},{"type":"trav","brf":"适宜","txt":"天气较好，风稍大，但温度适宜，总体来说还是好天气。这样的天气适宜旅游，您可以尽情享受大自然的风光。"},{"type":"uv","brf":"最弱","txt":"属弱紫外线辐射天气，无需特别防护。若长期在户外，建议涂擦SPF在8-12之间的防晒护肤品。"},{"type":"cw","brf":"较不宜","txt":"较不宜洗车，未来一天无雨，风力较大，如果执意擦洗汽车，要做好蒙上污垢的心理准备。"},{"type":"air","brf":"良","txt":"气象条件有利于空气污染物稀释、扩散和清除，可在室外正常活动。"}]
         */
        private BasicBean basic;
        private UpdateBean update;
        private String status;
        private NowBean now;
        private List daily_forecast;
        private List lifestyle;

        public BasicBean getBasic() {
            return basic;
        }

        public void setBasic(BasicBean basic) {
            this.basic = basic;
        }

        public UpdateBean getUpdate() {
            return update;
        }

        public void setUpdate(UpdateBean update) {
            this.update = update;
        }

        public String getStatus() {
            return status;
        }

        public void setStatus(String status) {
            this.status = status;
        }

        public NowBean getNow() {
            return now;
        }

        public void setNow(NowBean now) {
            this.now = now;
        }

        public List getDaily_forecast() {
            return daily_forecast;
        }

        public void setDaily_forecast(List daily_forecast) {
            this.daily_forecast = daily_forecast;
        }

        public List getLifestyle() {
            return lifestyle;
        }

        public void setLifestyle(List lifestyle) {
            this.lifestyle = lifestyle;
        }

        public static class BasicBean {
            /**
             * cid : CN101010100
             * location : 北京
             * parent_city : 北京
             * admin_area : 北京
             * cnty : 中国
             * lat : 39.90498734
             * lon : 116.4052887
             * tz : +8.00
             */

            private String cid;
            private String location;
            private String parent_city;
            private String admin_area;
            private String cnty;
            private String lat;
            private String lon;
            private String tz;

            public String getCid() {
                return cid;
            }

            public void setCid(String cid) {
                this.cid = cid;
            }

            public String getLocation() {
                return location;
            }

            public void setLocation(String location) {
                this.location = location;
            }

            public String getParent_city() {
                return parent_city;
            }

            public void setParent_city(String parent_city) {
                this.parent_city = parent_city;
            }

            public String getAdmin_area() {
                return admin_area;
            }

            public void setAdmin_area(String admin_area) {
                this.admin_area = admin_area;
            }

            public String getCnty() {
                return cnty;
            }

            public void setCnty(String cnty) {
                this.cnty = cnty;
            }

            public String getLat() {
                return lat;
            }

            public void setLat(String lat) {
                this.lat = lat;
            }

            public String getLon() {
                return lon;
            }

            public void setLon(String lon) {
                this.lon = lon;
            }

            public String getTz() {
                return tz;
            }

            public void setTz(String tz) {
                this.tz = tz;
            }
        }

        public static class UpdateBean {
            /**
             * loc : 2018-05-01 14:47
             * utc : 2018-05-01 06:47
             */

            private String loc;
            private String utc;

            public String getLoc() {
                return loc;
            }

            public void setLoc(String loc) {
                this.loc = loc;
            }

            public String getUtc() {
                return utc;
            }

            public void setUtc(String utc) {
                this.utc = utc;
            }
        }

        public static class NowBean {
            /**
             * cloud : 0
             * cond_code : 504
             * cond_txt : 浮尘
             * fl : 18
             * hum : 26
             * pcpn : 0.0
             * pres : 1013
             * tmp : 21
             * vis : 10
             * wind_deg : 72
             * wind_dir : 东北风
             * wind_sc : 3
             * wind_spd : 14
             */

            private String cloud;
            private String cond_code;
            private String cond_txt;
            private String fl;
            private String hum;
            private String pcpn;
            private String pres;
            private String tmp;
            private String vis;
            private String wind_deg;
            private String wind_dir;
            private String wind_sc;
            private String wind_spd;

            public String getCloud() {
                return cloud;
            }

            public void setCloud(String cloud) {
                this.cloud = cloud;
            }

            public String getCond_code() {
                return cond_code;
            }

            public void setCond_code(String cond_code) {
                this.cond_code = cond_code;
            }

            public String getCond_txt() {
                return cond_txt;
            }

            public void setCond_txt(String cond_txt) {
                this.cond_txt = cond_txt;
            }

            public String getFl() {
                return fl;
            }

            public void setFl(String fl) {
                this.fl = fl;
            }

            public String getHum() {
                return hum;
            }

            public void setHum(String hum) {
                this.hum = hum;
            }

            public String getPcpn() {
                return pcpn;
            }

            public void setPcpn(String pcpn) {
                this.pcpn = pcpn;
            }

            public String getPres() {
                return pres;
            }

            public void setPres(String pres) {
                this.pres = pres;
            }

            public String getTmp() {
                return tmp;
            }

            public void setTmp(String tmp) {
                this.tmp = tmp;
            }

            public String getVis() {
                return vis;
            }

            public void setVis(String vis) {
                this.vis = vis;
            }

            public String getWind_deg() {
                return wind_deg;
            }

            public void setWind_deg(String wind_deg) {
                this.wind_deg = wind_deg;
            }

            public String getWind_dir() {
                return wind_dir;
            }

            public void setWind_dir(String wind_dir) {
                this.wind_dir = wind_dir;
            }

            public String getWind_sc() {
                return wind_sc;
            }

            public void setWind_sc(String wind_sc) {
                this.wind_sc = wind_sc;
            }

            public String getWind_spd() {
                return wind_spd;
            }

            public void setWind_spd(String wind_spd) {
                this.wind_spd = wind_spd;
            }
        }

        public static class DailyForecastBean {
            /**
             * cond_code_d : 504
             * cond_code_n : 101
             * cond_txt_d : 浮尘
             * cond_txt_n : 多云
             * date : 2018-05-01
             * hum : 35
             * mr : 20:19
             * ms : 06:13
             * pcpn : 0.0
             * pop : 0
             * pres : 1015
             * sr : 05:16
             * ss : 19:09
             * tmp_max : 24
             * tmp_min : 13
             * uv_index : 6
             * vis : 20
             * wind_deg : 3
             * wind_dir : 北风
             * wind_sc : 4-5
             * wind_spd : 33
             */

            private String cond_code_d;
            private String cond_code_n;
            private String cond_txt_d;
            private String cond_txt_n;
            private String date;
            private String hum;
            private String mr;
            private String ms;
            private String pcpn;
            private String pop;
            private String pres;
            private String sr;
            private String ss;
            private String tmp_max;
            private String tmp_min;
            private String uv_index;
            private String vis;
            private String wind_deg;
            private String wind_dir;
            private String wind_sc;
            private String wind_spd;

            public String getCond_code_d() {
                return cond_code_d;
            }

            public void setCond_code_d(String cond_code_d) {
                this.cond_code_d = cond_code_d;
            }

            public String getCond_code_n() {
                return cond_code_n;
            }

            public void setCond_code_n(String cond_code_n) {
                this.cond_code_n = cond_code_n;
            }

            public String getCond_txt_d() {
                return cond_txt_d;
            }

            public void setCond_txt_d(String cond_txt_d) {
                this.cond_txt_d = cond_txt_d;
            }

            public String getCond_txt_n() {
                return cond_txt_n;
            }

            public void setCond_txt_n(String cond_txt_n) {
                this.cond_txt_n = cond_txt_n;
            }

            public String getDate() {
                return date;
            }

            public void setDate(String date) {
                this.date = date;
            }

            public String getHum() {
                return hum;
            }

            public void setHum(String hum) {
                this.hum = hum;
            }

            public String getMr() {
                return mr;
            }

            public void setMr(String mr) {
                this.mr = mr;
            }

            public String getMs() {
                return ms;
            }

            public void setMs(String ms) {
                this.ms = ms;
            }

            public String getPcpn() {
                return pcpn;
            }

            public void setPcpn(String pcpn) {
                this.pcpn = pcpn;
            }

            public String getPop() {
                return pop;
            }

            public void setPop(String pop) {
                this.pop = pop;
            }

            public String getPres() {
                return pres;
            }

            public void setPres(String pres) {
                this.pres = pres;
            }

            public String getSr() {
                return sr;
            }

            public void setSr(String sr) {
                this.sr = sr;
            }

            public String getSs() {
                return ss;
            }

            public void setSs(String ss) {
                this.ss = ss;
            }

            public String getTmp_max() {
                return tmp_max;
            }

            public void setTmp_max(String tmp_max) {
                this.tmp_max = tmp_max;
            }

            public String getTmp_min() {
                return tmp_min;
            }

            public void setTmp_min(String tmp_min) {
                this.tmp_min = tmp_min;
            }

            public String getUv_index() {
                return uv_index;
            }

            public void setUv_index(String uv_index) {
                this.uv_index = uv_index;
            }

            public String getVis() {
                return vis;
            }

            public void setVis(String vis) {
                this.vis = vis;
            }

            public String getWind_deg() {
                return wind_deg;
            }

            public void setWind_deg(String wind_deg) {
                this.wind_deg = wind_deg;
            }

            public String getWind_dir() {
                return wind_dir;
            }

            public void setWind_dir(String wind_dir) {
                this.wind_dir = wind_dir;
            }

            public String getWind_sc() {
                return wind_sc;
            }

            public void setWind_sc(String wind_sc) {
                this.wind_sc = wind_sc;
            }

            public String getWind_spd() {
                return wind_spd;
            }

            public void setWind_spd(String wind_spd) {
                this.wind_spd = wind_spd;
            }
        }

        public static class LifestyleBean {
            /**
             * type : comf
             * brf : 舒适
             * txt : 白天不太热也不太冷，风力不大，相信您在这样的天气条件下，应会感到比较清爽和舒适。
             */

            private String type;
            private String brf;
            private String txt;

            public String getType() {
                return type;
            }

            public void setType(String type) {
                this.type = type;
            }

            public String getBrf() {
                return brf;
            }

            public void setBrf(String brf) {
                this.brf = brf;
            }

            public String getTxt() {
                return txt;
            }

            public void setTxt(String txt) {
                this.txt = txt;
            }
        }
    }
}

有了这个JavaBean就好办事了，直接在需要调用的地方调用解析就行（PS：博主很懒，懒得去优化代码了。明明是可以用butterknife来做得，不用敲那么多的手敲代码，非要做这样的蠢事。不过这个代码是博主很早之前就已经做好了的，就没有去修改优化了，这也是最近想写写博客突然想起这个demo就拉出来用用而已）

public class MainActivity extends AppCompatActivity {
    RequestQueue queue = null;
    EditText et_location;
    TextView tv_city, tv_date, tv_max_temp, tv_min_temp, tv_temp, tv_cond, tv_dir, tv_comf, tv_suggest,
            tv_pre_day1_maxtmp, tv_pre_day1_mintmp, tv_pre_day1_cond, tv_pre_day1_wind,
            tv_pre_day2_maxtmp, tv_pre_day2_mintmp, tv_pre_day2_cond, tv_pre_day2_wind,
            tv_pre_day3_maxtmp, tv_pre_day3_mintmp, tv_pre_day3_cond, tv_pre_day3_wind,
            title_pre, title_pre_day1, title_pre_day2, title_pre_day3;
    Editable location;
   LinearLayoutCompat ly_container;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.KITKAT) {
            //透明状态栏
            getWindow().addFlags(WindowManager.LayoutParams.FLAG_TRANSLUCENT_STATUS);
            //透明导航栏
            getWindow().addFlags(WindowManager.LayoutParams.FLAG_TRANSLUCENT_NAVIGATION);
        }
        setContentView(R.layout.activity_main);
        ly_container= (LinearLayoutCompat) findViewById(R.id.ly_container);

        queue = Volley.newRequestQueue(this);
        et_location = (EditText) findViewById(R.id.et_location);
        tv_city = (TextView) findViewById(R.id.id_tv_city);
        tv_date = (TextView) findViewById(R.id.id_tv_date);
        tv_max_temp = (TextView) findViewById(R.id.id_tv_max_temp);
        tv_min_temp = (TextView) findViewById(R.id.id_tv_min_temp);
        tv_temp = (TextView) findViewById(R.id.id_tv_temp);
        tv_cond = (TextView) findViewById(R.id.id_tv_cond);
        tv_dir = (TextView) findViewById(R.id.id_tv_dir);
        tv_comf = (TextView) findViewById(R.id.id_tv_comf);
        tv_suggest = (TextView) findViewById(R.id.id_tv_suggest);

        title_pre = (TextView) findViewById(R.id.title_pre);
        title_pre_day1 = (TextView) findViewById(R.id.title_pre_day1);
        title_pre_day2 = (TextView) findViewById(R.id.title_pre_day2);
        title_pre_day3 = (TextView) findViewById(R.id.title_pre_day3);

        //未来三天天气
        tv_pre_day1_maxtmp = (TextView) findViewById(R.id.tv_pre_day1_maxtmp);
        tv_pre_day1_mintmp = (TextView) findViewById(R.id.tv_pre_day1_mintmp);
        tv_pre_day1_cond = (TextView) findViewById(R.id.tv_pre_day1_cond);
        tv_pre_day1_wind = (TextView) findViewById(R.id.tv_pre_day1_wind);

        tv_pre_day2_maxtmp = (TextView) findViewById(R.id.tv_pre_day2_maxtmp);
        tv_pre_day2_mintmp = (TextView) findViewById(R.id.tv_pre_day2_mintmp);
        tv_pre_day2_cond = (TextView) findViewById(R.id.tv_pre_day2_cond);
        tv_pre_day2_wind = (TextView) findViewById(R.id.tv_pre_day2_wind);

        tv_pre_day3_maxtmp = (TextView) findViewById(R.id.tv_pre_day3_maxtmp);
        tv_pre_day3_mintmp = (TextView) findViewById(R.id.tv_pre_day3_mintmp);
        tv_pre_day3_cond = (TextView) findViewById(R.id.tv_pre_day3_cond);
        tv_pre_day3_wind = (TextView) findViewById(R.id.tv_pre_day3_wind);

    }

    public void weatherClick(View view) {
        location = et_location.getText();
        String url = "https://free-api.heweather.com/s6/weather?location=" + location + "&key=0754508fbe0f44be915c65a0182b8aa9";
        JsonObjectRequest request = new JsonObjectRequest(Request.Method.GET, url, null, new Response.Listener() {
            @Override
            public void onResponse(JSONObject jsonObject) {
                ly_container.setBackgroundResource(R.mipmap.sky);
                title_pre.setVisibility(View.VISIBLE);
                title_pre_day1.setVisibility(View.VISIBLE);
                title_pre_day2.setVisibility(View.VISIBLE);
                title_pre_day3.setVisibility(View.VISIBLE);

                System.out.println(jsonObject);
                Gson gson = new Gson();
                WeatherBean weatherBean = gson.fromJson(jsonObject.toString(), WeatherBean.class);
                String cityName = weatherBean.getHeWeather6().get(0).getBasic().getLocation();
                String date = weatherBean.getHeWeather6().get(0).getDaily_forecast().get(0).getDate();
                String maxtemp = weatherBean.getHeWeather6().get(0).getDaily_forecast().get(0).getTmp_max();
                String mintemp = weatherBean.getHeWeather6().get(0).getDaily_forecast().get(0).getTmp_min();
                String temp = weatherBean.getHeWeather6().get(0).getNow().getTmp();
                String cond = weatherBean.getHeWeather6().get(0).getNow().getCond_txt();
                String dir = weatherBean.getHeWeather6().get(0).getNow().getWind_dir();
                String comf = weatherBean.getHeWeather6().get(0).getLifestyle().get(0).getBrf();
                String suggest = weatherBean.getHeWeather6().get(0).getLifestyle().get(0).getTxt();

                String day1_maxtmp=weatherBean.getHeWeather6().get(0).getDaily_forecast().get(0).getTmp_max();
                String day1_mintmp=weatherBean.getHeWeather6().get(0).getDaily_forecast().get(0).getTmp_min();
                String day1_cond=weatherBean.getHeWeather6().get(0).getDaily_forecast().get(0).getCond_txt_n();
                String day1_wind=weatherBean.getHeWeather6().get(0).getDaily_forecast().get(0).getWind_dir();

                String day2_maxtmp=weatherBean.getHeWeather6().get(0).getDaily_forecast().get(1).getTmp_max();
                String day2_mintmp=weatherBean.getHeWeather6().get(0).getDaily_forecast().get(1).getTmp_min();
                String day2_cond=weatherBean.getHeWeather6().get(0).getDaily_forecast().get(1).getCond_txt_n();
                String day2_wind=weatherBean.getHeWeather6().get(0).getDaily_forecast().get(1).getWind_dir();

                String day3_maxtmp=weatherBean.getHeWeather6().get(0).getDaily_forecast().get(2).getTmp_max();
                String day3_mintmp=weatherBean.getHeWeather6().get(0).getDaily_forecast().get(2).getTmp_min();
                String day3_cond=weatherBean.getHeWeather6().get(0).getDaily_forecast().get(2).getCond_txt_n();
                String day3_wind=weatherBean.getHeWeather6().get(0).getDaily_forecast().get(2).getWind_dir();

                tv_city.setText("城市：" + cityName);
                tv_date.setText("日期：" + date);
                tv_max_temp.setText("最高温度：" + maxtemp);
                tv_min_temp.setText("最低温度：" + mintemp);
                tv_temp.setText("实时温度：" + temp);
                tv_cond.setText("天气情况：" + cond);
                tv_dir.setText("风向：" + dir);
                tv_comf.setText("人体感觉：" + comf);
                tv_suggest.setText("建议：" + suggest);

                tv_pre_day1_maxtmp.setText("最高温度:" + day1_maxtmp);
                tv_pre_day1_mintmp.setText("最低温度:" + day1_mintmp);
                tv_pre_day1_cond.setText("天气:" + day1_cond);
                tv_pre_day1_wind.setText("风向:" + day1_wind);

                tv_pre_day2_maxtmp.setText("最高温度:" + day2_maxtmp);
                tv_pre_day2_mintmp.setText("最低温度:" + day2_mintmp);
                tv_pre_day2_cond.setText("天气:" + day2_cond);
                tv_pre_day2_wind.setText("风向:" + day2_wind);

                tv_pre_day3_maxtmp.setText("最高温度:" + day3_maxtmp);
                tv_pre_day3_mintmp.setText("最低温度:" + day3_mintmp);
                tv_pre_day3_cond.setText("天气:" + day3_cond);
                tv_pre_day3_wind.setText("风向:" + day3_wind);


            }
        }, new Response.ErrorListener() {
            @Override
            public void onErrorResponse(VolleyError volleyError) {
                System.out.println(volleyError);
            }
        });
        queue.add(request);
    }
}

由于我写这个代码的时候用了很多TextView，免得大家乱套了，在这里就给出我当时的xml代码吧。

对了，记得给AndroidManifest一个可以访问网络的权限哦，不然我们怎么请求数据呢。

好，说了一大堆废话，直接上最终效果图吧。。。。。。

背景图什么的换为你自己喜欢的就好，哈哈，这不是重点。

点击“查询天气”按键就切换背景图以及获取到JSON数据并解析出来了，好，到此结束，博主溜了......