Volley 结合GSON或FastJson用法

 1 public class GsonRequest<T> extends Request<T> {
 2     private final Gson mGson = new Gson();
 3     private final Class<T> mClazz;
 4     private final Listener<T> mListener;
 5     private final Map<String, String> mHeaders;
 6 
 7     public GsonRequest(String url, Class<T> clazz, Listener<T> listener, ErrorListener errorListener) {
 8         this(Method.GET, url, clazz, null, listener, errorListener);
 9     }
10 
11     public GsonRequest(int method, String url, Class<T> clazz, Map<String, String> headers,
12             Listener<T> listener, ErrorListener errorListener) {
13         super(method, url, errorListener);
14         this.mClazz = clazz;
15         this.mHeaders = headers;
16         this.mListener = listener;
17     }
18 
19     @Override
20     public Map<String, String> getHeaders() throws AuthFailureError {
21         return mHeaders != null ? mHeaders : super.getHeaders();
22     }
23 
24     @Override
25     protected void deliverResponse(T response) {
26         mListener.onResponse(response);
27     }
28 
29     @Override
30     protected Response<T> parseNetworkResponse(NetworkResponse response) {
31         try {
32             String json = new String(response.data, HttpHeaderParser.parseCharset(response.headers));
33             return Response.success(mGson.fromJson(json, mClazz),
34                     HttpHeaderParser.parseCacheHeaders(response));
35         } catch (UnsupportedEncodingException e) {
36             return Response.error(new ParseError(e));
37         } catch (JsonSyntaxException e) {
38             return Response.error(new ParseError(e));
39         }
40     }
41 }

 1 public class FastJsonRequest<T> extends Request<T> { 
 2     private final Class<T> mClazz;
 3     private final Listener<T> mListener;
 4     private final Map<String, String> mHeaders;
 5 
 6     public FastJsonRequest(String url, Class<T> clazz, Listener<T> listener, ErrorListener errorListener) {
 7         this(Method.GET, url, clazz, null, listener, errorListener);
 8     }
 9 
10     public FastJsonRequest(int method, String url, Class<T> clazz, Map<String, String> headers,
11             Listener<T> listener, ErrorListener errorListener) {
12         super(method, url, errorListener);
13         this.mClazz = clazz;
14         this.mHeaders = headers;
15         this.mListener = listener;
16     }
17 
18     @Override
19     public Map<String, String> getHeaders() throws AuthFailureError {
20         return mHeaders != null ? mHeaders : super.getHeaders();
21     }
22 
23     @Override
24     protected void deliverResponse(T response) {
25         mListener.onResponse(response);
26     }
27 
28     @Override
29     protected Response<T> parseNetworkResponse(NetworkResponse response) {
30         try {
31             String json = new String(response.data, HttpHeaderParser.parseCharset(response.headers));
32             return Response.success(JSON.parseObject(json, mClazz),
33                     HttpHeaderParser.parseCacheHeaders(response));
34         } catch (UnsupportedEncodingException e) {
35             return Response.error(new ParseError(e));
36         }  
37     }
38 }

 1 public class MainActivity extends Activity {
 2     private Context context;
 3     private String url="http://www.weather.com.cn/data/sk/101010100.html";
 4     private TextView text;
 5     
 6     @Override
 7     protected void onCreate(Bundle savedInstanceState) {
 8         super.onCreate(savedInstanceState);
 9         setContentView(R.layout.activity_main);
10         context=this;
11          text=(TextView)this.findViewById(R.id.txttitle);
12         RequestQueue mQueue = Volley.newRequestQueue(context);
13         FastJsonRequest<Weather> fastJson=new FastJsonRequest<Weather>(url, Weather.class,
14                 new Response.Listener<Weather>() {
15 
16                     @Override
17                     public void onResponse(Weather weather) {
18                         // TODO Auto-generated method stub
19                           WeatherInfo weatherInfo = weather.getWeatherinfo();
20                           text.setText(weatherInfo.getCity());
21                     }
22                 }, new Response.ErrorListener() {
23 
24                     @Override
25                     public void onErrorResponse(VolleyError arg0) {
26                         // TODO Auto-generated method stub
27                         
28                     }
29                 });
30         mQueue.add(fastJson);
31         
32         GsonRequest<Weather> gsonRequest=new GsonRequest<Weather>(url, Weather.class,
33                 new Response.Listener<Weather>() {
34 
35                     @Override
36                     public void onResponse(Weather weather) {
37                         // TODO Auto-generated method stub
38                          WeatherInfo weatherInfo = weather.getWeatherinfo();
39                           text.setText(text.getText()+weatherInfo.getTime());
40                     }
41                 }, new Response.ErrorListener() {
42 
43                     @Override
44                     public void onErrorResponse(VolleyError arg0) {
45                         // TODO Auto-generated method stub
46                         
47                     }
48                 });
49         mQueue.add(gsonRequest);
50         
51         
52     } 
53 }

 1 public class Weather {
 2     private WeatherInfo weatherinfo;  
 3       
 4     public WeatherInfo getWeatherinfo() {  
 5         return weatherinfo;  
 6     }  
 7   
 8     public void setWeatherinfo(WeatherInfo weatherinfo) {  
 9         this.weatherinfo = weatherinfo;  
10     }  
11 }

 1 public class WeatherInfo {
 2     private String city;  
 3       
 4     private String temp;  
 5   
 6     private String time;  
 7   
 8     public String getCity() {  
 9         return city;  
10     }  
11   
12     public void setCity(String city) {  
13         this.city = city;  
14     }  
15   
16     public String getTemp() {  
17         return temp;  
18     }  
19   
20     public void setTemp(String temp) {  
21         this.temp = temp;  
22     }  
23   
24     public String getTime() {  
25         return time;  
26     }  
27   
28     public void setTime(String time) {  
29         this.time = time;  
30     }  
31 }