Example usage for org.apache.http.impl.client HttpClients createDefault

Introduction

In this page you can find the example usage for org.apache.http.impl.client HttpClients createDefault.

Prototype

public static CloseableHttpClient createDefault() 

Source Link

Document

Creates CloseableHttpClient instance with default configuration.

Usage

From source file:org.apache.bigtop.bigpetstore.qstream.Utils.java

public static HttpResponse get(URI uri) throws Exception {
    HttpGet httppost = new HttpGet(uri);
    HttpClient httpclient = HttpClients.createDefault();
    //Execute and get the response.
    try {//from   w  ww .j  a  v  a 2  s . co  m
        HttpResponse response = httpclient.execute(httppost);
        if (response.getStatusLine().getStatusCode() != 200)
            System.err.println("FAILURE! " + response.getStatusLine().getStatusCode());
        return response;
    } catch (Throwable t) {
        System.out.println("failed, sleeping");
        Thread.sleep(10000);
    }
    System.err.println("FAILURE getting URI " + uri.toASCIIString());
    return null;
}

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From source file:cn.austin.crawle.Crawler.java

public String crawleTheContent(int currpage) throws IOException {
    String content = null;// w  w  w . j  a v  a2  s .  c  o m
    CloseableHttpResponse response = null;
    InputStream is = null;
    try {
        CloseableHttpClient httpclient = HttpClients.createDefault();
        int start = (currpage - 1) * 14 + 1;
        String url = "https://book.douban.com/subject_search?start=%s&search_text=%E7%BC%96%E7%A8%8B&cat=1001"
                .replace("%s", String.valueOf(start));
        HttpGet httpGet = new HttpGet(url);

        httpGet.addHeader("Accept",
                "text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,*/*;q=0.8");
        httpGet.addHeader("Accept-Encoding", "gzip, deflate, sdch, br");
        httpGet.addHeader("Accept-Language", "zh-CN,zh;q=0.8");
        httpGet.addHeader("Connection", "keep-alive");
        httpGet.addHeader("Cookie",
                "gr_user_id=f2ae551f-d8be-472d-a17c-fb427123b958; viewed=\"1470240_11386364\"; ll=\"108296\"; bid=DT2w_1e4hnY; _vwo_uuid_v2=A0ADC053693BC0BAB806B37B77D3EE2E|58055d5c7afc6b50c4901fc93157dfdd; _pk_id.100001.3ac3=69b82fcb3d85b9cb.1481024949.4.1481087406.1481074949.; __utma=30149280.413198661.1441366971.1481074927.1481087106.26; __utmc=30149280; __utmz=30149280.1480767548.22.22.utmcsr=baidu|utmccn=(organic)|utmcmd=organic; __utma=81379588.563439035.1481024949.1481074927.1481087107.4; __utmc=81379588; __utmz=81379588.1481024949.1.1.utmcsr=(direct)|utmccn=(direct)|utmcmd=(none)");
        httpGet.addHeader("Host", "book.douban.com");
        httpGet.addHeader("Referer", "https://book.douban.com/");
        httpGet.addHeader("Upgrade-Insecure-Requests", "1");
        httpGet.addHeader("User-Agent",
                "Mozilla/5.0 (Windows NT 10.0; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/54.0.2840.99 Safari/537.36");

        response = httpclient.execute(httpGet);
        HttpEntity entity = response.getEntity();

        is = entity.getContent();
        BufferedReader bufferedReader = new BufferedReader(new InputStreamReader(is, "UTF-8"));
        StringBuilder result = new StringBuilder();
        String read = null;
        while ((read = bufferedReader.readLine()) != null) {
            result.append(read);
        }
        content = result.toString();
    } finally {
        response.close();
        is.close();
    }
    return content;
}

---

From source file:it.av.fac.driver.APIClient.java

public String queryRequest(String userToken, String resource) {
    try (CloseableHttpClient httpclient = HttpClients.createDefault()) {
        HttpPost httpPost = new HttpPost(endpoint + QUERY_PATH);

        List<NameValuePair> nvps = new ArrayList<>();
        nvps.add(new BasicNameValuePair("request", URLEncoder.encode(resource, "UTF-8")));
        nvps.add(new BasicNameValuePair("token", URLEncoder.encode(userToken, "UTF-8")));
        httpPost.setEntity(new UrlEncodedFormEntity(nvps));

        // Create a custom response handler
        ResponseHandler<String> responseHandler = (final HttpResponse response) -> {
            int status = response.getStatusLine().getStatusCode();
            if (status >= 200 && status < 300) {
                HttpEntity entity = response.getEntity();
                return entity != null ? EntityUtils.toString(entity) : null;
            } else {
                throw new ClientProtocolException("Unexpected response status: " + status);
            }//w w w  .  j a va2 s.c om
        };

        return httpclient.execute(httpPost, responseHandler);
    } catch (IOException ex) {
        Logger.getLogger(APIClient.class.getName()).log(Level.SEVERE, null, ex);
        return null;
    }
}

---

From source file:org.sead.repositories.reference.util.SEADAuthenticator.java

static public HttpClientContext authenticate(String server) {

    boolean authenticated = false;
    log.info("Authenticating");

    String accessToken = SEADGoogleLogin.getAccessToken();

    // Now login to server and create a session
    CloseableHttpClient httpclient = HttpClients.createDefault();
    try {//  w w  w . j  a  v  a  2 s. c  o m
        // //DoLogin is the auth endpoint when using the AUthFilter, versus
        // the api/authenticate endpoint when connecting to the ACR directly
        HttpPost seadAuthenticate = new HttpPost(server + "/DoLogin");
        List<NameValuePair> nvpList = new ArrayList<NameValuePair>(1);
        nvpList.add(0, new BasicNameValuePair("googleAccessToken", accessToken));

        seadAuthenticate.setEntity(new UrlEncodedFormEntity(nvpList));

        CloseableHttpResponse response = httpclient.execute(seadAuthenticate, localContext);
        try {
            if (response.getStatusLine().getStatusCode() == 200) {
                HttpEntity resEntity = response.getEntity();
                if (resEntity != null) {
                    // String seadSessionId =
                    // EntityUtils.toString(resEntity);
                    authenticated = true;
                }
            } else {
                // Seems to occur when google device id is not set on server
                // - with a Not Found response...
                log.error("Error response from " + server + " : " + response.getStatusLine().getReasonPhrase());
            }
        } finally {
            response.close();
            httpclient.close();
        }
    } catch (IOException e) {
        log.error("Cannot read sead-google.json");
        log.error(e.getMessage());
    }

    // localContext should have the cookie with the SEAD session key, which
    // nominally is all that's needed.
    // FixMe: If there is no activity for more than 15 minutes, the session
    // may expire, in which case,
    // re-authentication using the refresh token to get a new google token
    // to allow SEAD login again may be required

    // also need to watch the 60 minutes google token timeout - project
    // spaces will invalidate the session at 60 minutes even if there is
    // activity
    authTime = System.currentTimeMillis();

    if (authenticated) {
        return localContext;
    }
    return null;
}

---

From source file:org.nuxeo.elasticsearch.http.readonly.HttpClient.java

public static String get(String url) throws IOException {
    CloseableHttpClient client = HttpClients.createDefault();
    HttpGet httpget = new HttpGet(url);
    try (CloseableHttpResponse response = client.execute(httpget)) {
        HttpEntity entity = response.getEntity();
        return entity != null ? EntityUtils.toString(entity) : null;
    }// w w  w  .  j a  v a 2s. co m
}

---

From source file:fr.lissi.belilif.om2m.rest.WebServiceActions.java

/**
 * Do get./*from www  . jav a2s .c  o m*/
 *
 * @param uri
 *            the uri
 * @param headers
 *            the headers
 * @return the string
 * @throws Exception
 *             the exception
 */
public static String doGet(URI uri, HashMap<String, String> headers) throws Exception {
    CloseableHttpClient httpclient = HttpClients.createDefault();
    String respString = null;
    try {
        /*
         * HttpClient provides URIBuilder utility class to simplify creation and modification of request URIs.
         * 
         * URI uri = new URIBuilder() .setScheme("http") .setHost("hc.apache.org/") // .setPath("/search") // .setParameter("q",
         * "httpclient") // .setParameter("btnG", "Google Search") // .setParameter("aq", "f") // .setParameter("oq", "") .build();
         */

        HttpGet httpGet = new HttpGet(uri);

        for (String key : headers.keySet()) {
            httpGet.addHeader(key, headers.get(key));
        }

        CloseableHttpResponse response1 = httpclient.execute(httpGet);
        // The underlying HTTP connection is still held by the response object
        // to allow the response content to be streamed directly from the network socket.
        // In order to ensure correct deallocation of system resources
        // the user MUST call CloseableHttpResponse#close() from a finally clause.
        // Please note that if response content is not fully consumed the underlying
        // connection cannot be safely re-used and will be shut down and discarded
        // by the connection manager.

        try {
            System.out.println(response1.getStatusLine());
            HttpEntity entity = response1.getEntity();
            // do something useful with the response body
            if (entity != null) {
                respString = EntityUtils.toString(entity);
            }
            // and ensure it is fully consumed
            EntityUtils.consume(entity);
        } finally {
            response1.close();
        }
    } finally {
        httpclient.close();
    }
    return respString;
}

---

From source file:com.nibss.util.Request.java

public void post(String url, List<NameValuePair> list) throws Exception {
    CloseableHttpClient httpclient = HttpClients.createDefault();
    try {/*ww  w  .j ava 2s . c  o  m*/
        HttpPost httpPost = new HttpPost(url);

        httpPost.setEntity(new UrlEncodedFormEntity(list));
        CloseableHttpResponse response2 = httpclient.execute(httpPost);
        try {
            System.out.println(response2.getStatusLine().getStatusCode());
            HttpEntity entity2 = response2.getEntity();

            EntityUtils.consume(entity2);
        } finally {
            response2.close();
        }
    } finally {
        httpclient.close();
    }
}

---

From source file:kmi.taa.core.SPARQLHTTPClient.java

public String httpGet(String url, String proxy) throws ClientProtocolException, IOException {
    CloseableHttpClient httpclient = HttpClients.createDefault();
    HttpGet httpget = new HttpGet(url);
    String responseBody;/*w w  w  .  ja v a2 s .c o  m*/
    try {
        if (!proxy.isEmpty()) {
            String[] str = proxy.split(":");
            int port = Integer.parseInt(str[1]);
            HttpHost host = new HttpHost(str[0], port, str[2]);
            RequestConfig config = RequestConfig.custom().setProxy(host).build();
            httpget.setConfig(config);
        }

        ResponseHandler<String> responseHandler = new ResponseHandler<String>() {
            public String handleResponse(final HttpResponse response)
                    throws ClientProtocolException, IOException {
                int status = response.getStatusLine().getStatusCode();
                if (status >= 200 && status < 300) {
                    try {
                        HttpEntity entity = response.getEntity();
                        return entity != null ? EntityUtils.toString(entity, StandardCharsets.UTF_8) : null;
                    } catch (ClientProtocolException e) {
                        return "";
                    }
                }
                return "";
            }

        };

        responseBody = httpclient.execute(httpget, responseHandler);
    } finally {
        httpclient.close();
    }

    return responseBody;
}

---

From source file:com.google.appengine.tck.misc.http.support.Client.java

protected synchronized HttpClient getClient() {
    if (client == null) {
        client = HttpClients.createDefault();
    }
    return client;
}

---

From source file:de.qaware.chronix.solr.retention.RetentionJob.java

/**
 * Constructs a retention job
 */
public RetentionJob() {
    httpClient = HttpClients.createDefault();
}

---

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