Android 通过http协议数据交互

摘要：方式一：HttpPost（importorg.apache.http.client.methods.HttpPost）

方式一：HttpPost（import org.apache.http.client.methods.HttpPost）
java代码：
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 = ;

/* 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();

}
}

});
复制代码
方式二：HttpURLConnection、URL(import java.net.HttpURLConnection;import java.net.URL;import java.net.URLEncoder;)
java代码：
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();

}

}