使用HttpURLConnecation 进行通信
1、GET 请求：
new Thread()
{
public void run()
{
try
{
//1. 连接网络 创建URL对象
URL url = new URL("http://www.baidu.com");
//2.打开连接 并获得HttpURLConnection对象
HttpURLConnection huc = (HttpURLConnection) url.openConnection();
//3. 读取该对象资源的数据
huc.setDoInput(true);// 设置读取数据
huc.setRequestMethod("GET");//设置请求模式 GET
huc.connect();//建立链接成功
//获得读取流
InputStream is = huc.getInputStream();
BufferedReader br = new BufferedReader(new InputStreamReader(is));
//4.获取读取到的字符数据 创建StringBuilder 对象
StringBuilder sb = new StringBuilder();
//5.读取数据
String line = "";
while((line=br.readLine())!=null)
{
sb.append(line+"
"); //收集读取到的数据
}
//获得Message对象
Message msg = Message.obtain();
msg.obj = sb;
msg.what = 1;
hd.sendMessage(msg);
} catch (Exception e)
{
// TODO Auto-generated catch block
e.printStackTrace();
}
}
}.start();
2、POST请求：
new Thread()
{
public void run()
{
try
{
// 1.获取URL对象
URL url = new URL("http://wwwtest.rupeng.cn:8888/QueryAvatarInfo.ashx");
// 2.获取HttpURLConnection 对象
HttpURLConnection huc = (HttpURLConnection) url.openConnection();
//3.设置 读入与写出
huc.setDoInput(true);
huc.setDoOutput(true);
//4.设置 请求模式
huc.setRequestMethod("POST");
//5.获取写入流
OutputStream os = huc.getOutputStream();
os.write(("action=GetAllNames").getBytes());
os.flush();
// 6.链接
huc.connect();
//7.读取返回数据
InputStream is = huc.getInputStream();
BufferedReader br = new BufferedReader(new InputStreamReader(is));
StringBuilder sb = new StringBuilder();
String line="";
while((line=br.readLine())!=null)
{
sb.append(line+"
");
}
Message msg = Message.obtain();
msg.obj = sb;
msg.what = 1;
// 发送数据
hd.sendMessage(msg);
// 关闭资源
is.close();
br.close();
os.close();
} catch (Exception e)
{
// TODO Auto-generated catch block
e.printStackTrace();
}
};
}.start();
使用HttpClient 进行通信
GET
new Thread()
{
// 耗时操作
public void run()
{
//1、创建HttpClient对象
HttpClient hc = new DefaultHttpClient();
//2.设置请求模式
HttpGet hg = new HttpGet("http://www.baidu.com/");
try
{
//3.客户端执行 GET请求 获得应答对象
HttpResponse hr = hc.execute(hg);
//4.通过应答对象获得 实体数据对象
HttpEntity he = hr.getEntity();
//5.通过EntityUtils工具类解析数据
String data = EntityUtils.toString(he,"UTF-8");
// 通过Handler发送数据
Message msg = Message.obtain();
msg.obj = data;
msg.what = 1;
hd.sendMessage(msg);
} catch (ClientProtocolException e)
{
// TODO Auto-generated catch block
e.printStackTrace();
} catch (Exception e)
{
// TODO Auto-generated catch block
e.printStackTrace();
}
}
}.start();