org.guohai.android.cta.utility.HttpRest.java Source code

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Here is the source code for org.guohai.android.cta.utility.HttpRest.java

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/**
 * ????GPLv3???
 * (GPLv3 http://www.gnu.org/licenses/gpl.html)
 * Copyright 2011 by CTA Group
 */
package org.guohai.android.cta.utility;

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.UnsupportedEncodingException;
import java.util.List;

import org.apache.http.HttpEntity;
import org.apache.http.HttpResponse;
import org.apache.http.NameValuePair;
import org.apache.http.client.ClientProtocolException;
import org.apache.http.client.HttpClient;
import org.apache.http.client.entity.UrlEncodedFormEntity;
import org.apache.http.client.methods.HttpPost;
import org.apache.http.impl.client.DefaultHttpClient;
import org.apache.http.protocol.HTTP;
import org.guohai.android.cta.model.ResultInfo;
import org.json.JSONException;
import org.json.JSONObject;

import android.util.Log;

public class HttpRest {

    private static final String TAG = "CoordinateTalk";

    /**
     * HTTPPost?
     * @param url POST?
     * @param pairs ?
     * @return ?JOSN?null
     */
    public static ResultInfo HttpPostClient(String url, List<NameValuePair> pairs) {
        //create http client
        HttpClient client = new DefaultHttpClient();
        //create post request
        HttpPost httpPost = new HttpPost(url);
        //return value
        ResultInfo result = new ResultInfo();
        //init eroor value
        result.State = -1000;
        result.Message = "posterror";

        HttpEntity entity;
        try {
            entity = new UrlEncodedFormEntity(pairs, HTTP.UTF_8);

        } catch (UnsupportedEncodingException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
            Log.e(TAG, e.getMessage());
            return result;
        }
        httpPost.setEntity(entity);

        //??POST? 
        try {
            HttpResponse response = client.execute(httpPost);
            if (response.getStatusLine().getStatusCode() == 200) {
                HttpEntity entityHtml = response.getEntity();
                BufferedReader reader = new BufferedReader(new InputStreamReader(entityHtml.getContent(), "UTF-8"));
                String line = null;
                String reString = "";
                while ((line = reader.readLine()) != null) {
                    reString += line;
                }
                if (entityHtml != null) {
                    entityHtml.consumeContent();
                }
                Log.i(TAG, reString);
                JSONObject jsonObj;

                try {
                    jsonObj = new JSONObject(reString);
                    result.State = jsonObj.getInt("state");
                    result.Message = jsonObj.getString("message");
                    return result;
                } catch (JSONException e) {
                    // TODO Auto-generated catch block
                    e.printStackTrace();
                    Log.e(TAG, e.getMessage());
                } catch (NumberFormatException e) {
                    // TODO Auto-generated catch block
                    e.printStackTrace();
                    Log.e(TAG, e.getMessage());
                }
                return result;
            }
        } catch (ClientProtocolException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
            Log.e(TAG, e.getMessage());

        } catch (IOException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
            Log.e(TAG, e.getMessage());
        }
        return result;
    }
}