Android 通过http协议数据交互

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();
}
}
});

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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();
}
}

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