Volley 结合GSON或FastJson用法

自定义GSON类

public class GsonRequest<T> extends Request<T> {
    private final Gson mGson = new Gson();
    private final Class<T> mClazz;
    private final Listener<T> mListener;
    private final Map<String, String> mHeaders;

    public GsonRequest(String url, Class<T> clazz, Listener<T> listener, ErrorListener errorListener) {
        this(Method.GET, url, clazz, null, listener, errorListener);
    }

    public GsonRequest(int method, String url, Class<T> clazz, Map<String, String> headers,
            Listener<T> listener, ErrorListener errorListener) {
        super(method, url, errorListener);
        this.mClazz = clazz;
        this.mHeaders = headers;
        this.mListener = listener;
    }

    @Override
    public Map<String, String> getHeaders() throws AuthFailureError {
        return mHeaders != null ? mHeaders : super.getHeaders();
    }

    @Override
    protected void deliverResponse(T response) {
        mListener.onResponse(response);
    }

    @Override
    protected Response<T> parseNetworkResponse(NetworkResponse response) {
        try {
            String json = new String(response.data, HttpHeaderParser.parseCharset(response.headers));
            return Response.success(mGson.fromJson(json, mClazz),
                    HttpHeaderParser.parseCacheHeaders(response));
        } catch (UnsupportedEncodingException e) {
            return Response.error(new ParseError(e));
        } catch (JsonSyntaxException e) {
            return Response.error(new ParseError(e));
        }
    }
}

自定义FastJson类

public class FastJsonRequest<T> extends Request<T> { 
    private final Class<T> mClazz;
    private final Listener<T> mListener;
    private final Map<String, String> mHeaders;

    public FastJsonRequest(String url, Class<T> clazz, Listener<T> listener, ErrorListener errorListener) {
        this(Method.GET, url, clazz, null, listener, errorListener);
    }

    public FastJsonRequest(int method, String url, Class<T> clazz, Map<String, String> headers,
            Listener<T> listener, ErrorListener errorListener) {
        super(method, url, errorListener);
        this.mClazz = clazz;
        this.mHeaders = headers;
        this.mListener = listener;
    }

    @Override
    public Map<String, String> getHeaders() throws AuthFailureError {
        return mHeaders != null ? mHeaders : super.getHeaders();
    }

    @Override
    protected void deliverResponse(T response) {
        mListener.onResponse(response);
    }

    @Override
    protected Response<T> parseNetworkResponse(NetworkResponse response) {
        try {
            String json = new String(response.data, HttpHeaderParser.parseCharset(response.headers));
            return Response.success(JSON.parseObject(json, mClazz),
                    HttpHeaderParser.parseCacheHeaders(response));
        } catch (UnsupportedEncodingException e) {
            return Response.error(new ParseError(e));
        }  
    }
}

JAR下载

所有JAR

public class MainActivity extends Activity {
    private Context context;
    private String url="http://www.weather.com.cn/data/sk/101010100.html";
    private TextView text;
    
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        context=this;
         text=(TextView)this.findViewById(R.id.txttitle);
        RequestQueue mQueue = Volley.newRequestQueue(context);
        FastJsonRequest<Weather> fastJson=new FastJsonRequest<Weather>(url, Weather.class,
                new Response.Listener<Weather>() {

                    @Override
                    public void onResponse(Weather weather) {
                        // TODO Auto-generated method stub
                          WeatherInfo weatherInfo = weather.getWeatherinfo();
                          text.setText(weatherInfo.getCity());
                    }
                }, new Response.ErrorListener() {

                    @Override
                    public void onErrorResponse(VolleyError arg0) {
                        // TODO Auto-generated method stub
                        
                    }
                });
        mQueue.add(fastJson);
        
        GsonRequest<Weather> gsonRequest=new GsonRequest<Weather>(url, Weather.class,
                new Response.Listener<Weather>() {

                    @Override
                    public void onResponse(Weather weather) {
                        // TODO Auto-generated method stub
                         WeatherInfo weatherInfo = weather.getWeatherinfo();
                          text.setText(text.getText()+weatherInfo.getTime());
                    }
                }, new Response.ErrorListener() {

                    @Override
                    public void onErrorResponse(VolleyError arg0) {
                        // TODO Auto-generated method stub
                        
                    }
                });
        mQueue.add(gsonRequest);
        
        
    } 
}

Model类

public class Weather {
    private WeatherInfo weatherinfo;  
      
    public WeatherInfo getWeatherinfo() {  
        return weatherinfo;  
    }  
  
    public void setWeatherinfo(WeatherInfo weatherinfo) {  
        this.weatherinfo = weatherinfo;  
    }  
}

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;  
    }  
}

早期记录 http://www.cnblogs.com/freexiaoyu/p/3446028.html