自定义Volley的GsonRequest使用

淩亂°似流年 2022-07-15 00:14 155阅读 0赞

Gson结合Volley类：

package com.example.cuboo.myapplication;
    
    import com.android.volley.NetworkResponse;
    import com.android.volley.ParseError;
    import com.android.volley.Request;
    import com.android.volley.Response;
    import com.android.volley.toolbox.HttpHeaderParser;
    import com.google.gson.Gson;
    
    import java.io.UnsupportedEncodingException;
    
    import static android.icu.lang.UCharacter.GraphemeClusterBreak.T;
    
    /**
     * Created by cuboo on 2016/10/26.
     */
    
    public class GsonRequest<T> extends Request<T> {
        private Response.Listener<T> mListener;
        private Gson mGson;
        private Class<T> mClass;
    
        public GsonRequest(int method, String url,Class<T> mClass, Response.Listener<T> listener,Response.ErrorListener errorListener) {
            super(method, url, errorListener);
            this.mListener = listener;
            this.mClass = mClass;
        }
        public GsonRequest(String url,Class<T> mClass, Response.Listener<T> listener, Response.ErrorListener errorListener) {
            this(Method.GET, url, mClass, listener, errorListener);
        }
    
        @Override
        protected Response<T> parseNetworkResponse(NetworkResponse response) {
            String jsonString;
            try {
                jsonString = new String(response.data,
                        HttpHeaderParser.parseCharset(response.headers));
    
            } catch (UnsupportedEncodingException e) {
                return Response.error(new ParseError(e));
            }
            return Response.success(mGson.fromJson(jsonString, mClass),
                    HttpHeaderParser.parseCacheHeaders(response));
        }
    
        @Override
        protected void deliverResponse(T response) {
            this.mListener.onResponse(response);
        }
    }

数据类：

<pre style="font-family: 宋体; font-size: 9.8pt; background-color: rgb(255, 255, 255);"><pre name="code" class="java">package com.example.cuboo.myapplication;
    
    
    public class weather {
        private weatherinfo weatherinfo;
    
        public weatherinfo getWeatherinfo() {
            return weatherinfo;
        }
    
        public void setWeatherinfo(weatherinfo weatherinfo) {
            this.weatherinfo = weatherinfo;
        }
    }

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;
        }
    }

使用：

RequestQueue mqueue = Volley.newRequestQueue(this);
            GsonRequest<weather> gsonRequest = new GsonRequest<weather>
                    ("http://www.weather.com.cn/data/sk/101010100.html"
                    , weather.class, new Response.Listener<weather>() {
                @Override
                public void onResponse(weather s) {
                    weatherinfo weatherInfo = s.getWeatherinfo();
                    Log.d("TAG", "city is " + weatherInfo.getCity());
                    Log.d("TAG", "temp is " + weatherInfo.getTemp());
                    Log.d("TAG", "time is " + weatherInfo.getTime());
                }
            }, new Response.ErrorListener() {
                @Override
                public void onErrorResponse(VolleyError volleyError) {
                    Log.e("TAG", volleyError.getMessage(), volleyError);
                }
            });
            mqueue.add(gsonRequest);