Android Open Source - Abstack-books-management Http Connection

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Back to project page Abstack-books-management.
License

The source code is released under:
MIT License
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Java Source Code

package com.abstack.book.plugin.camera.util;
/*  w w w  .  ja  v a 2  s  .c o  m*/
import java.util.ArrayList;
import java.util.HashMap;
import java.util.Iterator;
import java.util.List;

import org.apache.http.HttpResponse;
import org.apache.http.NameValuePair;
import org.apache.http.client.entity.UrlEncodedFormEntity;
import org.apache.http.client.methods.HttpDelete;
import org.apache.http.client.methods.HttpGet;
import org.apache.http.client.methods.HttpPost;
import org.apache.http.client.methods.HttpPut;
import org.apache.http.conn.ClientConnectionManager;
import org.apache.http.impl.client.DefaultHttpClient;
import org.apache.http.impl.conn.tsccm.ThreadSafeClientConnManager;
import org.apache.http.message.BasicNameValuePair;
import org.apache.http.params.HttpConnectionParams;
import org.apache.http.params.HttpParams;
import org.apache.http.protocol.HTTP;
import org.apache.http.util.EntityUtils;

import android.util.Log;

public class HttpConnection {
  private static DefaultHttpClient client = null;

  static {
    client = new DefaultHttpClient();
//    ClientConnectionManager mgr = client.getConnectionManager();
//    HttpParams params = client.getParams();
//
//    client = new DefaultHttpClient(new ThreadSafeClientConnManager(params,
//        mgr.getSchemeRegistry()), params);
  }

  /**
   * GET ????
   * 
   * @param url
   * @return
   */

  public static String getRequest(String url) {
    String jsonStr = null;
    HttpGet httpRequest = new HttpGet(url);
    try {
      HttpParams params = client.getParams();
      HttpConnectionParams.setConnectionTimeout(params, 5000);
      HttpConnectionParams.setSoTimeout(params, 5000);
      HttpResponse httpResponse = client.execute(httpRequest);
      int status = httpResponse.getStatusLine().getStatusCode();
      if (status == 200) {
        jsonStr = EntityUtils.toString(httpResponse.getEntity(),
            "gb2312");
      } else {
        jsonStr = EntityUtils.toString(httpResponse.getEntity(),
            "gb2312");
      }
    } catch (Exception e) {
      Log.e("exception", e.getMessage());
    }
    return jsonStr;
  }

  /**
   * POST ????
   * 
   * @param url
   * @param map
   * @return result ???????????
   */

  public static String postRequest(String url, HashMap<String, String> map) {
    String result = null;
    Object obj = null;
    HttpPost httpRequest = new HttpPost(url);
    List<NameValuePair> listParams = new ArrayList<NameValuePair>();
    Iterator<String> it = map.keySet().iterator();

    try {
      HttpParams params = client.getParams();
      HttpConnectionParams.setConnectionTimeout(params, 5000);
      HttpConnectionParams.setSoTimeout(params, 5000);

      while (it.hasNext()) {
        obj = it.next();
        if (obj != null && !obj.equals("")) {
          listParams.add(new BasicNameValuePair(obj.toString(), map
              .get(obj)));
        }
      }
      httpRequest.setEntity(new UrlEncodedFormEntity(listParams,
          HTTP.UTF_8));
      HttpResponse httpResponse = client.execute(httpRequest);

      int code = httpResponse.getStatusLine().getStatusCode();
      if (code == 200) {
        result = EntityUtils.toString(httpResponse.getEntity(),
            "gb2312");
      } else {
        result = EntityUtils.toString(httpResponse.getEntity(),
            "gb2312");
      }
    } catch (Exception e) {
      Log.e("exception", e.getMessage());
    }

    return result;
  }

  /**
   * delete ??????
   * 
   * @param url
   * @return
   */
  public static String deleteRequest(String url) {
    String result = null;
    HttpDelete httpDelete = new HttpDelete(url);
    try {
      HttpParams params = client.getParams();
      HttpConnectionParams.setConnectionTimeout(params, 5000);
      HttpConnectionParams.setSoTimeout(params, 5000);
      HttpResponse response = client.execute(httpDelete);
      if (response.getStatusLine().getStatusCode() == 200) {
        result = EntityUtils.toString(response.getEntity(), "gb2312");
      } else {
        result = EntityUtils.toString(response.getEntity(), "gb2312");
      }
    } catch (Exception e) {
      Log.e("exception", e.getMessage());
    }
    return result;
  }

  /**
   * put??????
   * 
   * @param url
   *            ??map
   * @return
   */
  public static String putRequest(String url, HashMap<String, String> map) {
    String result = null;
    Object obj = null;
    HttpPut httpPut = new HttpPut(url);
    List<NameValuePair> listParams = new ArrayList<NameValuePair>();
    Iterator<String> it = map.keySet().iterator();
    try {
      HttpParams params = client.getParams();
      HttpConnectionParams.setConnectionTimeout(params, 5000);
      HttpConnectionParams.setSoTimeout(params, 5000);

      while (it.hasNext()) {
        obj = it.next();
        if (obj != null && !obj.equals("")) {
          listParams.add(new BasicNameValuePair(obj.toString(), map
              .get(obj)));
        }
      }
      httpPut.setEntity(new UrlEncodedFormEntity(listParams, HTTP.UTF_8));
      HttpResponse response = client.execute(httpPut);
      if (response.getStatusLine().getStatusCode() == 200) {
        result = EntityUtils.toString(response.getEntity(), "gb2312");
      } else {
        result = EntityUtils.toString(response.getEntity(), "gb2312");
      }
    } catch (Exception e) {
      Log.e("exception", e.getMessage());
    }
    return result;
  }
}
Java Source Code List
