Android通过http协议数据交互的两种方式

方式一：HttpPost（import org.apache.http.client.methods.HttpPost）

 

	private Button button1, button2, button3;
	private TextView textView1;

	button1.setOnClickListener(new Button.OnClickListener() {
		@Override
		public void onClick(View arg0) {
			// TODO Auto-generated method stub
		// URLַ
		// String uriAPI =
		// "http://www.dubblogs.cc:8751/Android/Test/API/Post/index.php";
		String uriAPI = "http://172.20.0.206:8082//TestServelt/login.do";
		/* 建立HTTP Post连线 */
		HttpPost httpRequest = new HttpPost(uriAPI);
		// Post运作传送变数必须用NameValuePair[]阵列储存
		// 传参数 服务端获取的方法为request.getParameter("name")
		List<NameValuePair> params = new ArrayList<NameValuePair>();
		params.add(new BasicNameValuePair("name", "this is post"));
		try {

			// 发出HTTP request
			httpRequest.setEntity(new UrlEncodedFormEntity(params, HTTP.UTF_8));
			// 取得HTTP response
			HttpResponse httpResponse = new DefaultHttpClient().execute(httpRequest);

			// 若状态码为200 ok
			if (httpResponse.getStatusLine().getStatusCode() == 200) {
				// 取出回应字串
				String strResult = EntityUtils.toString(httpResponse.getEntity());
				textView1.setText(strResult);
			} else {
				textView1.setText("Error Response" + httpResponse.getStatusLine().toString());
			}
		} catch (ClientProtocolException e) {
			textView1.setText(e.getMessage().toString());
			e.printStackTrace();
		} catch (UnsupportedEncodingException e) {
			textView1.setText(e.getMessage().toString());
			e.printStackTrace();
		} catch (IOException e) {
			textView1.setText(e.getMessage().toString());
			e.printStackTrace();
		}
	}

});

 

方式二：HttpURLConnection、URL(import java.net.HttpURLConnection;import java.net.URL;import java.net.URLEncoder;)

 

private void httpUrlConnection() {
	try {
		String pathUrl = "http://172.20.0.206:8082/TestServelt/login.do";
		// 建立连接
		URL url = new URL(pathUrl);
		HttpURLConnection httpConn = (HttpURLConnection) url.openConnection();

		// //设置连接属性
		httpConn.setDoOutput(true);// 使用 URL 连接进行输出
		httpConn.setDoInput(true);// 使用 URL 连接进行输入
		httpConn.setUseCaches(false);// 忽略缓存
		httpConn.setRequestMethod("POST");// 设置URL请求方法
		String requestString = "客服端要以以流方式发送到服务端的数据...";

		// 设置请求属性
		// 获得数据字节数据，请求数据流的编码，必须和下面服务器端处理请求流的编码一致
		byte[] requestStringBytes = requestString.getBytes(ENCODING_UTF_8);
		httpConn.setRequestProperty("Content-length", "" + requestStringBytes.length);
		httpConn.setRequestProperty("Content-Type", "application/octet-stream");
		httpConn.setRequestProperty("Connection", "Keep-Alive");// 维持长连接
		httpConn.setRequestProperty("Charset", "UTF-8");
		//
		String name = URLEncoder.encode("黄武艺", "utf-8");
		httpConn.setRequestProperty("NAME", name);

		// 建立输出流，并写入数据
		OutputStream outputStream = httpConn.getOutputStream();
		outputStream.write(requestStringBytes);
		outputStream.close();
		// 获得响应状态
		int responseCode = httpConn.getResponseCode();
		if (HttpURLConnection.HTTP_OK == responseCode) {// 连接成功

			// 当正确响应时处理数据
			StringBuffer sb = new StringBuffer();
			String readLine;
			BufferedReader responseReader;
			// 处理响应流，必须与服务器响应流输出的编码一致
			responseReader = new BufferedReader(new InputStreamReader(httpConn.getInputStream(), ENCODING_UTF_8));
			while ((readLine = responseReader.readLine()) != null) {
				sb.append(readLine).append("\n");
			}
			responseReader.close();
			tv.setText(sb.toString());
		}
	} catch (Exception ex) {
		ex.printStackTrace();
	}
}

 补充：

标准的http post传输方式，以上面为例子，如下：

requestStringBytes =“customerId=3461&nickName=黄&email=[e-mail]&areaCode=0592&cityCode=350200&registerPhone=18906051120”服务端通过getParamer("customerId")获取。

如果把参数值放在URL，例如http://172.20.0.206:8082/TestServelt/login.do?customerId=3461&nickName=黄&email=[e-mail]&areaCode=0592&cityCode=350200&registerPhone=18906051120

虽然是以post方式传输，但是实际上还是以get方式提交

 

 

评论

1 楼 webczw 2012-07-09  

不错，学习