关于http通信的其实自己也不是很懂，就是略微知道一些基本的通信方法
方法1：
? ?DefaultHttpClient httpclient = new DefaultHttpClient();// 创建http客户端
?? HttpGet httpget = new HttpGet(httpUrl);?
?? HttpResponse response = httpclient.execute(httpget);
?? HttpEntity entity = response.getEntity();//得到http的内容
?? response.getStatusLine().getStatusCode();//得到http的状态返回值
?? result = EntityUtils.toString(response.getEntity());//得到具体的返回值，一般是xml文件
?? entity.consumeContent();//如果entity不为空，则释放内存空间
?? ? ? httpclient.getCookieStore();//得到cookis
?? httpclient.getConnectionManager().shutdown();//关闭http客户端
方法2：
DefaultHttpClient httpclient = new DefaultHttpClient();
? HttpPost httpPost = new HttpPost(httpUrl);
? httpclient.setCookieStore(DataDefine.mCookieStore);
? HttpParams params = httpclient.getParams(); // 计算网络超时用
? HttpConnectionParams.setConnectionTimeout(params, 5 * 1000);
? HttpConnectionParams.setSoTimeout(params, 2 * 1000);
? httpPost.setHeader("Content-Type", "text/xml");?
? StringEntity httpPostEntity = new StringEntity(base64, "UTF-8");//base64是经过编码的字符串，可以理解为字符串
? //StringEntity httpPostEntity = new StringEntity("UTF-8");
? httpPost.setEntity(httpPostEntity);
? HttpResponse response = httpclient.execute(httpPost);?