Question

从Android应用程序我想发送一些数据。该数据应显示在网站上。目前我正在使用XAMPP在localhost中尝试。

主要活动

protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);
    Button sendButton  = (Button) findViewById(R.id.sendButton);
    sendButton.setOnClickListener(new OnClickListener() {

        @Override
        public void onClick(View v) {
            // TODO Auto-generated method stub
            new NetworkOperation().execute();
            //Toast.makeText(getBaseContext(), "response", Toast.LENGTH_LONG).show();
        }
    });

}

另一个班级

public class NetworkOperation extends AsyncTask<String,Void,String>{

@Override
protected String doInBackground(String... arg0) {
    // TODO Auto-generated method stub
    HttpClient httpClient = new DefaultHttpClient();
    HttpPost httpPost = new HttpPost("http://192.168.0.104/Project/script.php");
    try{
        List<NameValuePair> nameValuePair = new ArrayList<NameValuePair>(1);
        nameValuePair.add(new BasicNameValuePair("id","somevalue"));
        httpPost.setEntity(new UrlEncodedFormEntity(nameValuePair));
        HttpResponse response = httpClient.execute(httpPost);
        Log.d("Http Response:", (response.getEntity()).toString());
    }catch (ClientProtocolException e) {
        // TODO Auto-generated catch block
        System.out.println("clientprotocolexception");
    } catch (IOException e) {
        // TODO Auto-generated catch block
        System.out.println("IOexception");
        e.printStackTrace();
    }finally {
        httpClient.getConnectionManager().shutdown();
    }
    return null;
}

包含在清单中

<uses-permission android:name="android.permission.INTERNET" />
<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />

我有php脚本文件如下

<?php
$error = 'Not received';
$result =  (isset($_POST['id']) ? $_POST['id'] : $error);
echo $result;

＆GT;

Answer 1

您正在发送HTTP POST请求，但不会处理它返回的数据。这将是一个关于如何等待服务器端响应的示例，我试图评论相关部分，以便它易于理解。

HttpResponse response = null;

try {
  // Fill in the POST pair you want to sent to the server
  final List<NameValuePair> nameValuePairs = new ArrayList<NameValuePair>();
  nameValuePairs.add(new BasicNameValuePair("mykey", "myvalue"));
  httppost.setEntity(new UrlEncodedFormEntity(nameValuePairs));

  // Send the request
  response = httpclient.execute(httppost);
}
catch (final ClientProtocolException e) { ... }
catch (final IOException e) { ... }

// Now you have to process the response    
InputStream ips;
try {
  ips = response.getEntity().getContent();
  final BufferedReader buf = new BufferedReader(new InputStreamReader(ips, "UTF-8"));

  StringBuilder sb = new StringBuilder();
  String s;
  while (true) {
    s = buf.readLine();
    if ((s == null) || (s.length() == 0))
      break;
    sb.append(s);
  }

  buf.close();
  ips.close();

  Log.d("JSONResponse", "My response from the server is: " + sb.toString());
} 
catch (IllegalStateException e1) { } 
catch (IOException e1) { }

if (response.getStatusLine().getStatusCode() != HttpStatus.SC_OK) {
  try { throw new Exception(response.getStatusLine().getReasonPhrase()); } 
  catch (final Exception e) { e.printStackTrace(); }
}

来自android的HttpPost无法正常工作

1 个答案: