Example usage for org.apache.http.client HttpClient execute

Introduction

In this page you can find the example usage for org.apache.http.client HttpClient execute.

Prototype

HttpResponse execute(HttpUriRequest request) throws IOException, ClientProtocolException;

Source Link

Document

Executes HTTP request using the default context.

Usage

From source file:Main.java

public static JSONObject callService(String url) {
    InputStream inputStream = null;
    JSONObject result = null;/*from  w ww.j  a va 2  s  .c  o m*/
    try {
        // create HttpClient
        HttpClient httpclient = new DefaultHttpClient();
        // make GET request to the given URL
        HttpResponse httpResponse = httpclient.execute(new HttpGet(url));
        // receive response as inputStream
        inputStream = httpResponse.getEntity().getContent();
        // convert inputstream to string
        if (inputStream != null) {
            String response = convertInputStreamToString(inputStream);
            //result = new JSONObject(response);
        }
    } catch (Exception e) {
        Log.d("InputStream", e.getLocalizedMessage());
    }
    return result;
}

From source file:Main.java

public static byte[] loadByteFromURL(String url) {
    HttpClient httpClient = new DefaultHttpClient();
    HttpGet httpGet = new HttpGet(url);
    HttpResponse response;//from www . ja v a 2 s  . c  om
    try {
        response = httpClient.execute(httpGet);
        if (response.getStatusLine().getStatusCode() == 200) {
            HttpEntity httpEntity = response.getEntity();
            return EntityUtils.toByteArray(httpEntity);
        }
    } catch (Exception e) {
        e.printStackTrace();
    }
    return null;
}

From source file:Main.java

public static InputStream loadFileFromURL(String url) {
    HttpClient httpClient = new DefaultHttpClient();
    HttpGet httpGet = new HttpGet(url);
    HttpResponse response;// ww  w  . jav a 2 s  .co  m
    try {
        response = httpClient.execute(httpGet);
        if (response.getStatusLine().getStatusCode() == 200) {
            HttpEntity httpEntity = response.getEntity();
            return httpEntity.getContent();
        }
    } catch (Exception e) {
        e.printStackTrace();
    }
    return null;
}

From source file:Main.java

public static String loadTextFromURL(String url, String charset) {
    HttpClient httpClient = new DefaultHttpClient();
    HttpGet httpGet = new HttpGet(url);
    HttpResponse response;/*from   w  w w  . j a v  a  2  s. co  m*/
    try {
        response = httpClient.execute(httpGet);
        if (response.getStatusLine().getStatusCode() == 200) {
            HttpEntity httpEntity = response.getEntity();
            return EntityUtils.toString(httpEntity, charset);
        }
    } catch (Exception e) {
        e.printStackTrace();
    }
    return null;
}

From source file:org.trpr.platform.batch.impl.job.ha.service.FileUpload.java

/**
 * A generic method to execute any type of Http Request and constructs a response object
 * @param requestBase the request that needs to be exeuted
 * @return server response as <code>String</code>
 *//*from  www .  j  a v  a  2  s  . c o m*/
public static String executeRequest(HttpRequestBase requestBase) {
    //The string holding the server response
    String responseString = "";
    InputStream responseStream = null;
    HttpClient client = new DefaultHttpClient();
    try {
        HttpResponse response = client.execute(requestBase);
        if (response != null) {
            HttpEntity responseEntity = response.getEntity();
            if (responseEntity != null) {
                responseStream = responseEntity.getContent();
                if (responseStream != null) {
                    BufferedReader br = new BufferedReader(new InputStreamReader(responseStream));
                    String responseLine = br.readLine();
                    String tempResponseString = "";
                    while (responseLine != null) {
                        tempResponseString = tempResponseString + responseLine
                                + System.getProperty("line.separator");
                        responseLine = br.readLine();
                    }
                    br.close();
                    if (tempResponseString.length() > 0) {
                        responseString = tempResponseString;
                    }
                }
            }
        }
    } catch (Exception e) {
        LOGGER.error("Exception while uploading file to server", e);
    }
    client.getConnectionManager().shutdown();
    return responseString;
}

From source file:wvw.utils.pc.HttpHelper.java

public static String post(String url, JSONArray headers, String data) {
    HttpPost httpPost = new HttpPost(url);

    for (int i = 0; i < headers.length(); i++) {
        JSONArray header = headers.getJSONArray(i);

        httpPost.addHeader(header.getString(0), header.getString(1));
    }/* ww w  .jav a  2  s  .  c o  m*/

    String ret = null;
    try {
        httpPost.setEntity(new StringEntity(data));

        HttpClient httpClient = new DefaultHttpClient();
        HttpResponse response = httpClient.execute(httpPost);

        StatusLine status = response.getStatusLine();

        switch (status.getStatusCode()) {

        case 200:
            ret = IOUtils.readFromStream(response.getEntity().getContent());

            break;

        default:
            ret = genError(status.getReasonPhrase());

            break;
        }

    } catch (IOException e) {
        // e.printStackTrace();

        ret = genError(e.getClass() + ": " + e.getMessage());
    }

    return ret;
}

From source file:core.RESTCalls.RESTGet.java

public static String httpGet(String urlStr) throws Exception {

    HttpClient client = new DefaultHttpClient();

    HttpGet get = new HttpGet(urlStr);

    HttpResponse response = client.execute(get);

    BufferedReader rd = new BufferedReader(new InputStreamReader(response.getEntity().getContent()));

    String content = "", line = null;

    while ((line = rd.readLine()) != null)
        content += line + "\n";

    return content;
}

From source file:com.example.qrpoll.MyHttpURLConnection.java

/**
 * pobieranie zawartosci strony z serwera
 * @param url adres url strony z ktora chcemy sie polaczyc
 * @return zawartosc strony//from   w w  w  .j  a v a 2 s. c  o m
 * @throws ClientProtocolException
 * @throws IOException
 * @throws Exception404 
 */
static public String get(String url) throws ClientProtocolException, IOException, Exception404 {
    HttpClient httpclient = new DefaultHttpClient();
    HttpGet httpget = new HttpGet(url);
    HttpResponse response = httpclient.execute(httpget);
    HttpEntity entity = response.getEntity();

    int code = response.getStatusLine().getStatusCode();
    if (code == 404)
        throw new Exception404();

    InputStream is = entity.getContent();
    BufferedReader reader = new BufferedReader(new InputStreamReader(is, "iso-8859-1"), 8);
    StringBuilder sb = new StringBuilder();
    String line = null;
    while ((line = reader.readLine()) != null)
        sb.append(line + "\n");

    is.close();
    String resString = sb.toString();

    return resString;
}

From source file:com.klinker.android.dream.util.NetworkUtils.java

/**
 * Get a JSON string from the given url//  w  w  w  .  j a  va 2  s  .  c  o m
 * @param url the url where the JSON is located
 * @return the String in the format of a JSON
 */
public static String getJsonString(String url) {
    InputStream inputStream;
    String result = "";

    try {
        HttpClient httpclient = new DefaultHttpClient();
        HttpResponse httpResponse = httpclient.execute(new HttpGet(url));
        inputStream = httpResponse.getEntity().getContent();
        if (inputStream != null) {
            result = convertInputStreamToString(inputStream);
        } else {
            result = "Did not work!";
        }
    } catch (Exception e) {
        Log.d("InputStream", e.getLocalizedMessage());
    }

    return result;
}

From source file:org.npr.api.HttpHelper.java

/**
 * A helper function to grab content from a URL.
 *
 * @param url URL of the item to download
 *
 * @return an input stream to the content. The caller is responsible for
 * closing the stream. Content will be null in the case of errors.
 * @throws java.io.IOException if an error occurs loading the url
 *///from  ww  w. j av a2 s . c  o  m
public static InputStream download(String url) throws IOException {
    InputStream data = null;
    Log.d(LOG_TAG, "Starting download: " + url);
    HttpClient http = new DefaultHttpClient();
    HttpGet method = new HttpGet(url);

    try {
        HttpResponse response = http.execute(method);
        data = response.getEntity().getContent();
    } catch (IllegalStateException e) {
        Log.e(LOG_TAG, "error downloading", e);
    }
    Log.d(LOG_TAG, "Download complete");
    return data;
}