网络Http请求的完整封装

package com.iexin.skd4s.net; import java.io.BufferedReader; import java.io.IOException; import java.io.InputStreamReader; import java.util.List; import org.apache.http.Header; import org.apache.http.HttpEntity; import org.apache.http.HttpResponse; import org.apache.http.NameValuePair; import org.apache.http.client.HttpClient; 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.entity.BufferedHttpEntity; import org.apache.http.impl.client.DefaultHttpClient; import org.apache.http.params.HttpConnectionParams; import org.apache.http.protocol.HTTP; import android.content.Context; import android.graphics.Bitmap; import android.graphics.BitmapFactory; import android.os.Handler; import android.os.Message; import android.util.Log; public class HttpConnectionUtils implements Runnable { public static String SESSION_ID; private static final String TAG = HttpConnectionUtils.class.getSimpleName(); public static final int DID_START = 0; public static final int DID_ERROR = 1; public static final int DID_SUCCEED = 2; private static final int GET = 0; private static final int POST = 1; private static final int PUT = 2; private static final int DELETE = 3; private static final int BITMAP = 4; private static final int CONN_TIME_OUT = 5; private static final int READ_TIME_OUT = 6; private static final int NO_NETWORKE = 7; private static final int NO_LOGIN = 8; private String url; private int method; private Handler handler; private List<NameValuePair> data; private HttpClient httpClient; public HttpConnectionUtils() { this(new Handler()); } public HttpConnectionUtils(Handler _handler) { handler = _handler; } public void create(int method, String url, List<NameValuePair> data) { Log.d(TAG, "method:"+method+" ,url:"+url+" ,data:"+data); this.method = method; this.url = url; this.data = data; ConnectionManager.getInstance().push(this); } public void get(String url) { create(GET, url, null); } public void post(String url, List<NameValuePair> data) { create(POST, url, data); } public void put(String url, List<NameValuePair> data) { create(PUT, url, data); } public void delete(String url) { create(DELETE, url, null); } public void bitmap(String url) { create(BITMAP, url, null); } @Override public void run() { handler.sendMessage(Message.obtain(handler, HttpConnectionUtils.DID_START)); httpClient = new DefaultHttpClient(); HttpConnectionParams.setConnectionTimeout(httpClient.getParams(), 6000); try { HttpResponse response = null; switch (method) { case GET: HttpGet httpGet = new HttpGet(url); if(SESSION_ID != null){ httpGet.setHeader("Cookie", "JSESSIONID=" + SESSION_ID); } response = httpClient.execute(httpGet); break; case POST: HttpPost httpPost = new HttpPost(url); if(SESSION_ID != null){ httpPost.setHeader("Cookie", "JSESSIONID=" + SESSION_ID); } httpPost.setEntity(new UrlEncodedFormEntity(data,HTTP.UTF_8)); response = httpClient.execute(httpPost); break; case PUT: HttpPut httpPut = new HttpPut(url); if(SESSION_ID != null){ httpPut.setHeader("Cookie", "JSESSIONID=" + SESSION_ID); } httpPut.setEntity(new UrlEncodedFormEntity(data,HTTP.UTF_8)); response = httpClient.execute(httpPut); break; case DELETE: HttpDelete httpDelete = new HttpDelete(url); if(SESSION_ID != null){ httpDelete.setHeader("Cookie", "JSESSIONID=" + SESSION_ID); } response = httpClient.execute(httpDelete); break; case BITMAP: //下载图片 HttpGet httpGetBit = new HttpGet(url); if(SESSION_ID != null){ httpGetBit.setHeader("Cookie", "JSESSIONID=" + SESSION_ID); } response = httpClient.execute(httpGetBit); processBitmapEntity(response.getEntity()); break; } if (method < BITMAP) { processEntity(response.getEntity()); } setSessionId(response); } catch (Exception e) { handler.sendMessage(Message.obtain(handler,HttpConnectionUtils.DID_ERROR,e)); } ConnectionManager.getInstance().didComplete(this); } /** * 设置网络请求的sessionId * @param response * 服务器放回的数据 */ private static void setSessionId(HttpResponse response) { Header[] h = response.getHeaders("Set-Cookie"); for (Header header : h) { String session = header.toString(); String sessionPair = session.substring(session.indexOf(":") + 1, session.indexOf(";")); SESSION_ID = sessionPair.substring(sessionPair.indexOf("=") + 1); break; } } private void processEntity(HttpEntity entity) throws IllegalStateException, IOException { BufferedReader br = new BufferedReader(new InputStreamReader(entity .getContent())); String line, result = ""; while ((line = br.readLine()) != null) result += line; Message message = Message.obtain(handler, DID_SUCCEED, result); //发送响应数据到UI线程 handler.sendMessage(message); } private void processBitmapEntity(HttpEntity entity) throws IOException { BufferedHttpEntity bufHttpEntity = new BufferedHttpEntity(entity); Bitmap bm = BitmapFactory.decodeStream(bufHttpEntity.getContent()); handler.sendMessage(Message.obtain(handler, DID_SUCCEED, bm));//发送下载到的图片到UI线程 } public static String getUrlFromResources(Context context,int sURL) { return context.getString(sURL); } public static String getUrlFromResources(Context context,String sURL) { return sURL; } }