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:com.hilatest.httpclient.apacheexample.ClientAbortMethod.java

public final static void main(String[] args) throws Exception {
    HttpClient httpclient = new DefaultHttpClient();

    HttpGet httpget = new HttpGet("http://www.apache.org/");

    System.out.println("executing request " + httpget.getURI());
    HttpResponse response = httpclient.execute(httpget);
    HttpEntity entity = response.getEntity();

    System.out.println("----------------------------------------");
    System.out.println(response.getStatusLine());
    if (entity != null) {
        System.out.println("Response content length: " + entity.getContentLength());
    }/* w ww .j  av  a  2s  .c  om*/
    System.out.println("----------------------------------------");

    // Do not feel like reading the response body
    // Call abort on the request object
    httpget.abort();

    // When HttpClient instance is no longer needed, 
    // shut down the connection manager to ensure
    // immediate deallocation of all system resources
    httpclient.getConnectionManager().shutdown();
}

---

From source file:com.rest.samples.GetJSON.java

public static void main(String[] args) {
    // TODO code application logic here
    //        String url = "https://api.adorable.io/avatars/list";
    String url = "http://freemusicarchive.org/api/get/albums.json?api_key=60BLHNQCAOUFPIBZ&limit=5";
    try {/*  ww  w. jav  a 2  s .  c o m*/
        HttpClient hc = HttpClientBuilder.create().build();
        HttpGet getMethod = new HttpGet(url);
        getMethod.addHeader("accept", "application/json");
        HttpResponse res = hc.execute(getMethod);
        if (res.getStatusLine().getStatusCode() != 200) {
            throw new RuntimeException("Failed : HTTP eror code: " + res.getStatusLine().getStatusCode());
        }

        InputStream is = res.getEntity().getContent();
        BufferedReader br = new BufferedReader(new InputStreamReader(is));
        JsonParser parser = new JsonParser();
        JsonElement element = parser.parse(br);
        if (element.isJsonObject()) {
            JsonObject jsonObject = element.getAsJsonObject();
            Set<Map.Entry<String, JsonElement>> jsonEntrySet = jsonObject.entrySet();
            for (Map.Entry<String, JsonElement> entry : jsonEntrySet) {
                if (entry.getValue().isJsonArray() && entry.getValue().getAsJsonArray().size() > 0) {
                    JsonArray jsonArray = entry.getValue().getAsJsonArray();
                    Set<Map.Entry<String, JsonElement>> internalJsonEntrySet = jsonArray.get(0)
                            .getAsJsonObject().entrySet();
                    for (Map.Entry<String, JsonElement> entrie : internalJsonEntrySet) {
                        System.out.println("--->   " + entrie.getKey() + " --> " + entrie.getValue());

                    }

                } else {
                    System.out.println(entry.getKey() + " --> " + entry.getValue());
                }
            }
        }

        String output;
        while ((output = br.readLine()) != null) {
            System.out.println(output);
        }

    } catch (IOException ex) {
        Logger.getLogger(SamplesUseHttpclient.class.getName()).log(Level.SEVERE, null, ex);
    }
}

---

From source file:com.oeg.oops.Main.java

public static void main(String[] args) {
    System.out.println("Hello, World");

    for (int i = 0; i < args.length; i++) {
        System.out.println("arg: " + args[i]);
    }/* w w w .jav  a 2s  . co  m*/
    //        if(args.length<2){
    //            System.out.println("expect 2 arguments: vocabulary-uri and output-directory");
    //        }
    //        else{
    //            String uri = args[0];
    //            String output_dir = args[1];
    if (true) {
        String uri = "https://raw.githubusercontent.com/ahmad88me/demo/master/alo.owl";
        String output_dir = "./output";

        System.out.println("uri: " + uri);
        System.out.println("output dir: " + output_dir);

        try {

            HttpClient client = HttpClientBuilder.create().build();
            HttpGet request = new HttpGet(uri);
            request.setHeader("Accept", "application/rdf+xml");
            HttpResponse response = client.execute(request);
            if (response.getStatusLine().getStatusCode() == 200) {
                String contentType = response.getFirstHeader("Content-Type").getValue();
                System.out.println("content type: " + contentType);
            }
        } catch (Exception e) {
            System.err.println("Error while doing http get: " + " in " + uri + " " + e.getMessage());
        }

        //Vocabulary v = new Vocabulary(uri);
        //            CreateOOPSEvalPage coep = new CreateOOPSEvalPage(v);
        //            coep.createPage(output_dir);
    }

}

---

From source file:com.dlmu.heipacker.crawler.client.ClientAbortMethod.java

public final static void main(String[] args) throws Exception {
    HttpClient httpclient = new DefaultHttpClient();
    try {// w  ww  .ja  va 2  s  .c o m
        HttpGet httpget = new HttpGet("http://www.apache.org/");

        System.out.println("executing request " + httpget.getURI());
        HttpResponse response = httpclient.execute(httpget);
        HttpEntity entity = response.getEntity();

        System.out.println("----------------------------------------");
        System.out.println(response.getStatusLine());
        if (entity != null) {
            System.out.println("Response content length: " + entity.getContentLength());
        }
        System.out.println("----------------------------------------");

        // Do not feel like reading the response body
        // Call abort on the request object
        httpget.abort();
    } finally {
        // When HttpClient instance is no longer needed,
        // shut down the connection manager to ensure
        // immediate deallocation of all system resources
        httpclient.getConnectionManager().shutdown();
    }
}

---

From source file:com.mtea.macrotea_httpclient_study.ClientAbortMethod.java

public final static void main(String[] args) throws Exception {
    //? DefaultHttpClient
    HttpClient httpclient = new DefaultHttpClient();
    try {//from   w  ww .j  a  v a2 s  .com
        HttpGet httpget = new HttpGet("http://www.baidu.com/");

        System.out.println("executing request " + httpget.getURI());
        HttpResponse response = httpclient.execute(httpget);
        HttpEntity entity = response.getEntity();

        System.out.println("----------------------------------------");
        System.out.println("RequestLine:" + httpget.getRequestLine());
        System.out.println("RequestLine:" + response.getStatusLine());
        if (entity != null) {
            System.out.println("Response content length: " + entity.getContentLength());
        }
        System.out.println("----------------------------------------");
        //
        EntityUtils.consume(entity);
        //??response?httpget
        httpget.abort();
    } catch (Exception e) {
        e.printStackTrace();
    } finally {
        //??httpclient???
        httpclient.getConnectionManager().shutdown();
    }
}

---

From source file:edu.uci.ics.crawler4j.examples.login.LoginCrawlController.java

public static void main(String[] args) throws Exception {
    //        if (args.length != 2) {
    //            System.out.println("Needed parameters: ");
    //            System.out.println("\t rootFolder (it will contain intermediate crawl data)");
    //            System.out.println("\t numberOfCralwers (number of concurrent threads)");
    //            return;
    //        }/*from ww w . ja  v  a  2 s.co m*/

    /*
       * crawlStorageFolder is a folder where intermediate crawl data is
     * stored.
     */
    String crawlStorageFolder = "/tmp/test_crawler/";

    /*
     * numberOfCrawlers shows the number of concurrent threads that should
     * be initiated for crawling.
     */
    int numberOfCrawlers = 1;

    CrawlConfig config = new CrawlConfig();

    config.setCrawlStorageFolder(crawlStorageFolder);

    /*
     * Be polite: Make sure that we don't send more than 1 request per
     * second (1000 milliseconds between requests).
     */
    config.setPolitenessDelay(1000);

    /*
     * You can set the maximum crawl depth here. The default value is -1 for
     * unlimited depth
     */
    config.setMaxDepthOfCrawling(0);

    /*
     * You can set the maximum number of pages to crawl. The default value
     * is -1 for unlimited number of pages
     */
    config.setMaxPagesToFetch(1000);

    /*
     * Do you need to set a proxy? If so, you can use:
     * config.setProxyHost("proxyserver.example.com");
     * config.setProxyPort(8080);
     *
     * If your proxy also needs authentication:
     * config.setProxyUsername(username); config.getProxyPassword(password);
     */

    /*
     * This config parameter can be used to set your crawl to be resumable
     * (meaning that you can resume the crawl from a previously
     * interrupted/crashed crawl). Note: if you enable resuming feature and
     * want to start a fresh crawl, you need to delete the contents of
     * rootFolder manually.
     */
    config.setResumableCrawling(false);

    config.setIncludeHttpsPages(true);
    HttpClient client = new DefaultHttpClient();
    HttpResponse response = client.execute(new HttpGet("http://58921.com/user/login"));

    HttpEntity entity = response.getEntity();
    String content = EntityUtils.toString(entity, HTTP.UTF_8);
    Document doc = Jsoup.parse(content);
    Elements elements = doc.getElementById("user_login_form").children();
    Element tokenEle = elements.last();
    String token = tokenEle.val();
    System.out.println(token);
    LoginConfiguration somesite;
    try {
        somesite = new LoginConfiguration("58921.com", new URL("http://58921.com/user/login"),
                new URL("http://58921.com/user/login/ajax?ajax=submit&__q=user/login"));
        somesite.addParam("form_id", "user_login_form");
        somesite.addParam("mail", "paxbeijing@gmail.com");
        somesite.addParam("pass", "cetas123");
        somesite.addParam("submit", "");
        somesite.addParam("form_token", token);
        config.addLoginConfiguration(somesite);
    } catch (MalformedURLException e) {
        e.printStackTrace();
    }

    /*
     * Instantiate the controller for this crawl.
     */
    PageFetcher pageFetcher = new PageFetcher(config);
    RobotstxtConfig robotstxtConfig = new RobotstxtConfig();
    robotstxtConfig.setEnabled(false);
    RobotstxtServer robotstxtServer = new RobotstxtServer(robotstxtConfig, pageFetcher);
    CrawlController controller = new CrawlController(config, pageFetcher, robotstxtServer);

    /*
     * For each crawl, you need to add some seed urls. These are the first
     * URLs that are fetched and then the crawler starts following links
     * which are found in these pages
     */

    controller.addSeed("http://58921.com/alltime?page=60");

    /*
     * Start the crawl. This is a blocking operation, meaning that your code
     * will reach the line after this only when crawling is finished.
     */
    controller.start(LoginCrawler.class, numberOfCrawlers);

    controller.env.close();
}

---

From source file:niclients.main.regni.java

public static void main(String[] args) throws UnsupportedEncodingException {
    HttpClient client = new DefaultHttpClient();

    if (commandparser(args)) {
        if (createpub()) {
            try {
                HttpResponse response = client.execute(post);
                int resp_code = response.getStatusLine().getStatusCode();
                System.err.println("RESP_CODE: " + Integer.toString(resp_code));
                BufferedReader rd = new BufferedReader(
                        new InputStreamReader(response.getEntity().getContent()));
                String line = "";
                while ((line = rd.readLine()) != null) {
                    System.out.println(line);
                }/*ww  w .j a  va  2s . c om*/

            } catch (IOException e) {
                e.printStackTrace();
            }
        } else {
            System.err.println("Publish creation failed!");
        }

    } else {
        System.err.println("Command line parsing failed!");
    }
}

---

From source file:org.ado.biblio.desktop.BulkBookLoad.java

public static void main(String[] args) throws IOException {
    HttpClient client = HttpClientBuilder.create().build();
    HttpGet request = new HttpGet(
            "https://www.kimonolabs.com/api/43h8bb74?apikey=a506e75ca96092b0f73b0ff59c15abe6");
    HttpResponse response = client.execute(request);

    LOGGER.info("Response code [{}]", response.getStatusLine().getStatusCode());

    String responseContent = IOUtils.toString(response.getEntity().getContent());
    final KimonoIsbn kimonoIsbn = new Gson().fromJson(responseContent, KimonoIsbn.class);
    LOGGER.info(kimonoIsbn.toString());/* www  .  j a  v  a  2 s.  c o  m*/

    final List<StringMap> books = kimonoIsbn.getResults().get("books");
    for (StringMap book : books) {
        final String isbnUrl = (String) book.get("isbn");
        LOGGER.info(isbnUrl);
        send(isbnUrl);
    }
}

---

From source file:yangqi.hc.HttpClientTest.java

/**
 * @param args// www.ja v  a 2  s. co m
 * @throws IOException
 * @throws ClientProtocolException
 */
public static void main(String[] args) throws ClientProtocolException, IOException {
    // TODO Auto-generated method stub
    HttpClient httpclient = new DefaultHttpClient();

    // Prepare a request object
    HttpGet httpget = new HttpGet("http://www.apache.org/");

    // Execute the request
    HttpResponse response = httpclient.execute(httpget);

    // Examine the response status
    System.out.println(response.getStatusLine());

    System.out.println(response.getLocale());

    for (Header header : response.getAllHeaders()) {
        System.out.println(header.toString());
    }

    // Get hold of the response entity
    HttpEntity entity = response.getEntity();

    System.out.println("==========entity=========");
    System.out.println(entity.getContentLength());
    System.out.println(entity.getContentType());
    System.out.println(entity.getContentEncoding());

    // If the response does not enclose an entity, there is no need
    // to worry about connection release
    if (entity != null) {
        InputStream instream = entity.getContent();
        try {

            BufferedReader reader = new BufferedReader(new InputStreamReader(instream));
            // do something useful with the response
            System.out.println(reader.readLine());

        } catch (IOException ex) {

            // In case of an IOException the connection will be released
            // back to the connection manager automatically
            throw ex;

        } catch (RuntimeException ex) {

            // In case of an unexpected exception you may want to abort
            // the HTTP request in order to shut down the underlying
            // connection and release it back to the connection manager.
            httpget.abort();
            throw ex;

        } finally {

            // Closing the input stream will trigger connection release
            instream.close();

        }

        // When HttpClient instance is no longer needed,
        // shut down the connection manager to ensure
        // immediate deallocation of all system resources
        httpclient.getConnectionManager().shutdown();
    }

}

---

From source file:io.alicorn.device.client.DeviceClient.java

public static void main(String[] args) {
    logger.info("Starting Alicorn Client System");

    // Prepare Display Color.
    transform3xWrite(DisplayTools.commandForColor(0, 204, 255));

    // Setup text information.
    //        transform3xWrite(DisplayTools.commandForText("Sup Fam"));

    class StringWrapper {
        public String string = "";
    }//from  w  w  w  .  j ava 2 s .  co  m
    final StringWrapper string = new StringWrapper();

    // Text Handler.
    Thread thread = new Thread(new Runnable() {
        @Override
        public void run() {
            String latestString = "";
            String outputStringLine1Complete = "";
            long outputStringLine1Cursor = 1;
            int outputStringLine1Mask = 0;
            String outputStringLine2 = "";

            while (true) {
                if (!latestString.equals(string.string)) {
                    latestString = string.string;
                    String[] latestStrings = latestString.split("::");
                    outputStringLine1Complete = latestStrings[0];
                    outputStringLine1Mask = outputStringLine1Complete.length();
                    outputStringLine1Cursor = 0;

                    // Trim second line to a length of sixteen.
                    outputStringLine2 = latestStrings.length > 1 ? latestStrings[1] : "";
                    if (outputStringLine2.length() > 16) {
                        outputStringLine2 = outputStringLine2.substring(0, 16);
                    }
                }

                StringBuilder outputStringLine1 = new StringBuilder();
                if (outputStringLine1Complete.length() > 0) {
                    long cursor = outputStringLine1Cursor;
                    for (int i = 0; i < 16; i++) {
                        outputStringLine1.append(
                                outputStringLine1Complete.charAt((int) (cursor % outputStringLine1Mask)));
                        cursor += 1;
                    }
                    outputStringLine1Cursor += 1;
                } else {
                    outputStringLine1.append("                ");
                }

                try {
                    transform3xWrite(
                            DisplayTools.commandForText(outputStringLine1.toString() + outputStringLine2));
                    Thread.sleep(400);
                } catch (Exception e) {
                    e.printStackTrace();
                }
            }
        }
    });
    thread.start();

    // Event Handler
    while (true) {
        try {
            String url = "http://169.254.90.174:9789/api/iot/narwhalText";
            HttpClient client = HttpClientBuilder.create().build();
            HttpGet request = new HttpGet(url);
            HttpResponse response = client.execute(request);
            string.string = apacheHttpEntityToString(response.getEntity());

            Thread.sleep(1000);
        } catch (Exception e) {
            e.printStackTrace();
        }
    }
}

---

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