Example usage for org.apache.http.impl.client CloseableHttpClient close

Introduction

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

Prototype

public void close() throws IOException;

Source Link

Document

Closes this stream and releases any system resources associated with it.

Usage

From source file:demo.example.ClientPreemptiveBasicAuthentication.java

public static void main(String[] args) throws Exception {
    HttpHost target = new HttpHost("httpbin.org", 80, "http");
    CredentialsProvider credsProvider = new BasicCredentialsProvider();
    credsProvider.setCredentials(new AuthScope(target.getHostName(), target.getPort()),
            new UsernamePasswordCredentials("user", "passwd"));
    CloseableHttpClient httpclient = HttpClients.custom().setDefaultCredentialsProvider(credsProvider).build();
    try {//from  w ww. jav a  2  s  . c  o m

        // Create AuthCache instance
        AuthCache authCache = new BasicAuthCache();
        // Generate BASIC scheme object and add it to the local
        // auth cache
        BasicScheme basicAuth = new BasicScheme();
        authCache.put(target, basicAuth);

        // Add AuthCache to the execution context
        HttpClientContext localContext = HttpClientContext.create();
        localContext.setAuthCache(authCache);

        HttpGet httpget = new HttpGet("http://httpbin.org/hidden-basic-auth/user/passwd");

        System.out.println("Executing request " + httpget.getRequestLine() + " to target " + target);
        for (int i = 0; i < 3; i++) {
            CloseableHttpResponse response = httpclient.execute(target, httpget, localContext);
            try {
                System.out.println("----------------------------------------");
                System.out.println(response.getStatusLine());
                System.out.println(EntityUtils.toString(response.getEntity()));
            } finally {
                response.close();
            }
        }
    } finally {
        httpclient.close();
    }
}

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From source file:com.lxf.spider.client.ClientEvictExpiredConnections.java

public static void main(String[] args) throws Exception {
    PoolingHttpClientConnectionManager cm = new PoolingHttpClientConnectionManager();
    cm.setMaxTotal(100);/*from  w ww  . j  ava2  s.  com*/
    CloseableHttpClient httpclient = HttpClients.custom().setConnectionManager(cm).build();
    try {
        // create an array of URIs to perform GETs on
        String[] urisToGet = { "http://hc.apache.org/", "http://hc.apache.org/httpcomponents-core-ga/",
                "http://hc.apache.org/httpcomponents-client-ga/", };

        IdleConnectionEvictor connEvictor = new IdleConnectionEvictor(cm);
        connEvictor.start();

        for (int i = 0; i < urisToGet.length; i++) {
            String requestURI = urisToGet[i];
            HttpGet request = new HttpGet(requestURI);

            System.out.println("Executing request " + requestURI);

            CloseableHttpResponse response = httpclient.execute(request);
            try {
                System.out.println("----------------------------------------");
                System.out.println(response.getStatusLine());
                EntityUtils.consume(response.getEntity());
            } finally {
                response.close();
            }
        }

        // Sleep 10 sec and let the connection evictor do its job
        Thread.sleep(20000);

        // Shut down the evictor thread
        connEvictor.shutdown();
        connEvictor.join();

    } finally {
        httpclient.close();
    }
}

---

From source file:com.lxf.spider.client.ClientConnectionRelease.java

public final static void main(String[] args) throws Exception {
    CloseableHttpClient httpclient = HttpClients.createDefault();
    try {/*ww w  .ja va2 s  . c o  m*/
        HttpGet httpget = new HttpGet("http://localhost/");

        System.out.println("Executing request " + httpget.getRequestLine());
        CloseableHttpResponse response = httpclient.execute(httpget);
        try {
            System.out.println("----------------------------------------");
            System.out.println(response.getStatusLine());

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

            // If the response does not enclose an entity, there is no need
            // to bother about connection release
            if (entity != null) {
                InputStream instream = entity.getContent();
                try {
                    instream.read();
                    // do something useful with the response
                } catch (IOException ex) {
                    // In case of an IOException the connection will be released
                    // back to the connection manager automatically
                    throw ex;
                } finally {
                    // Closing the input stream will trigger connection release
                    instream.close();
                }
            }
        } finally {
            response.close();
        }
    } finally {
        httpclient.close();
    }
}

---

From source file:com.zhch.example.commons.http.v4_5.ClientConnectionRelease.java

public final static void main(String[] args) throws Exception {
    CloseableHttpClient httpclient = HttpClients.createDefault();
    try {/*from   w w w  .  j  a  v  a 2s  .c  o  m*/
        HttpGet httpget = new HttpGet("http://httpbin.org/get");

        System.out.println("Executing request " + httpget.getRequestLine());
        CloseableHttpResponse response = httpclient.execute(httpget);
        try {
            System.out.println("----------------------------------------");
            System.out.println(response.getStatusLine());

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

            // If the response does not enclose an entity, there is no need
            // to bother about connection release
            if (entity != null) {
                InputStream instream = entity.getContent();
                try {
                    instream.read();
                    // do something useful with the response
                } catch (IOException ex) {
                    // In case of an IOException the connection will be released
                    // back to the connection manager automatically
                    throw ex;
                } finally {
                    // Closing the input stream will trigger connection release
                    instream.close();
                }
            }
        } finally {
            response.close();
        }
    } finally {
        httpclient.close();
    }
}

---

From source file:interoperabilite.webservice.client.ClientEvictExpiredConnections.java

public static void main(String[] args) throws Exception {
    PoolingHttpClientConnectionManager cm = new PoolingHttpClientConnectionManager();
    cm.setMaxTotal(100);//from www  .j a va  2 s. co m
    CloseableHttpClient httpclient = HttpClients.custom().setConnectionManager(cm).evictExpiredConnections()
            .evictIdleConnections(5L, TimeUnit.SECONDS).build();
    try {
        // create an array of URIs to perform GETs on
        String[] urisToGet = { "http://hc.apache.org/", "http://hc.apache.org/httpcomponents-core-ga/",
                "http://hc.apache.org/httpcomponents-client-ga/", };

        for (int i = 0; i < urisToGet.length; i++) {
            String requestURI = urisToGet[i];
            HttpGet request = new HttpGet(requestURI);

            System.out.println("Executing request " + requestURI);

            CloseableHttpResponse response = httpclient.execute(request);
            try {
                System.out.println("----------------------------------------");
                System.out.println(response.getStatusLine());
                System.out.println(EntityUtils.toString(response.getEntity()));
            } finally {
                response.close();
            }
        }

        PoolStats stats1 = cm.getTotalStats();
        System.out.println("Connections kept alive: " + stats1.getAvailable());

        // Sleep 10 sec and let the connection evictor do its job
        Thread.sleep(10000);

        PoolStats stats2 = cm.getTotalStats();
        System.out.println("Connections kept alive: " + stats2.getAvailable());

    } finally {
        httpclient.close();
    }
}

---

From source file:com.lxf.spider.client.ClientPreemptiveDigestAuthentication.java

public static void main(String[] args) throws Exception {
    HttpHost target = new HttpHost("localhost", 80, "http");
    CredentialsProvider credsProvider = new BasicCredentialsProvider();
    credsProvider.setCredentials(new AuthScope(target.getHostName(), target.getPort()),
            new UsernamePasswordCredentials("username", "password"));
    CloseableHttpClient httpclient = HttpClients.custom().setDefaultCredentialsProvider(credsProvider).build();
    try {/*from www .j av a 2 s  .  c om*/

        // Create AuthCache instance
        AuthCache authCache = new BasicAuthCache();
        // Generate DIGEST scheme object, initialize it and add it to the local
        // auth cache
        DigestScheme digestAuth = new DigestScheme();
        // Suppose we already know the realm name
        digestAuth.overrideParamter("realm", "some realm");
        // Suppose we already know the expected nonce value
        digestAuth.overrideParamter("nonce", "whatever");
        authCache.put(target, digestAuth);

        // Add AuthCache to the execution context
        HttpClientContext localContext = HttpClientContext.create();
        localContext.setAuthCache(authCache);

        HttpGet httpget = new HttpGet("/");

        System.out.println("Executing request " + httpget.getRequestLine() + " to target " + target);
        for (int i = 0; i < 3; i++) {
            CloseableHttpResponse response = httpclient.execute(target, httpget, localContext);
            try {
                System.out.println("----------------------------------------");
                System.out.println(response.getStatusLine());
                EntityUtils.consume(response.getEntity());
            } finally {
                response.close();
            }
        }
    } finally {
        httpclient.close();
    }
}

---

From source file:com.ccreservoirs.RSSReader.ClientConnectionRelease.java

public final static void main(String[] args) throws Exception {
    CloseableHttpClient httpclient = HttpClients.createDefault();
    try {/* w  ww  .j  a va2s .c  o m*/
        HttpGet httpget = new HttpGet("http://blog.csdn.net/rss.html?type=Home&channel=");

        System.out.println("Executing request " + httpget.getRequestLine());
        CloseableHttpResponse response = httpclient.execute(httpget);
        try {
            System.out.println("----------------------------------------");
            System.out.println(response.getStatusLine());

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

            // If the response does not enclose an entity, there is no need
            // to bother about connection release
            if (entity != null) {
                InputStream instream = entity.getContent();
                try {
                    instream.read();
                    // do something useful with the response
                } catch (IOException ex) {
                    // In case of an IOException the connection will be
                    // released
                    // back to the connection manager automatically
                    throw ex;
                } finally {
                    // Closing the input stream will trigger connection
                    // release
                    instream.close();
                }
            }
        } finally {
            response.close();
        }
    } finally {
        httpclient.close();
    }
}

---

From source file:com.http.ClientWithResponseHandler.java

public final static void main(String[] args) throws Exception {
    CloseableHttpClient httpclient = HttpClients.createDefault();
    try {/*w ww  .  j  a v  a  2 s  .com*/
        HttpGet httpget = new HttpGet("http://www.google.com/");

        System.out.println("executing request " + httpget.getURI());

        // Create a custom response handler
        ResponseHandler<String> responseHandler = new ResponseHandler<String>() {

            public String handleResponse(final HttpResponse response)
                    throws ClientProtocolException, IOException {
                int status = response.getStatusLine().getStatusCode();
                System.out.println(response.getStatusLine());
                if (status >= 200 && status < 300) {
                    HttpEntity entity = response.getEntity();
                    entity = new BufferedHttpEntity(entity);
                    System.out.println("---1-----:" + EntityUtils.toString(entity));
                    System.out.println("---2-----:" + EntityUtils.toString(entity));
                    return entity != null ? EntityUtils.toString(entity) : null;
                } else {
                    throw new ClientProtocolException("Unexpected response status: " + status);
                }
            }

        };
        String responseBody = httpclient.execute(httpget, responseHandler);
        System.out.println("----------------------------------------");
        System.out.println(responseBody);
        System.out.println("----------------------------------------");

    } finally {
        httpclient.close();
    }
}

---

From source file:com.http.ClientConnectionRelease.java

public final static void main(String[] args) throws Exception {
    CloseableHttpClient httpclient = HttpClients.createDefault();
    try {/* ww w .  j a v  a 2 s  . c o m*/
        HttpGet httpget = new HttpGet("http://www.apache.org/");

        // Execute HTTP request
        System.out.println("executing request " + httpget.getURI());
        CloseableHttpResponse response = httpclient.execute(httpget);
        try {
            System.out.println("----------------------------------------");
            System.out.println(response.getStatusLine());
            System.out.println("----------------------------------------");

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

            // If the response does not enclose an entity, there is no need
            // to bother about connection release
            if (entity != null) {
                InputStream instream = entity.getContent();
                try {
                    instream.read();
                    // do something useful with the response
                } catch (IOException ex) {
                    // In case of an IOException the connection will be released
                    // back to the connection manager automatically
                    throw ex;
                } finally {
                    // Closing the input stream will trigger connection release
                    instream.close();
                }
            }
        } finally {
            response.close();
        }
    } finally {
        httpclient.close();
    }
}

---

From source file:an.dpr.cyclingresultsapi.ClientExecuteProxy.java

public static void main(String[] args) throws Exception {
    CloseableHttpClient httpclient = HttpClients.createDefault();
    StringBuilder ret = new StringBuilder();
    try {/*w  w  w.  j  a  v a2  s  . c  o  m*/
        //http://cyclingresults-dprsoft.rhcloud.com/rest/competitions/query/20140101,20140601,1,1,UWT
        //            HttpHost target = new HttpHost("cyclingresults-dprsoft.rhcloud.com", 80, "http");
        HttpHost proxy = null;// = new HttpHost("proxy.sdc.hp.com", 8080, "http");
        HttpHost target = new HttpHost("localhost", 8282, "http");

        RequestConfig config = RequestConfig.custom()
                //                    .setProxy(proxy)
                .build();
        HttpGet request = new HttpGet("/rest/competitions/query/20130801,20130901,1,1,UWT");
        request.setConfig(config);

        System.out.println("Executing request " + request.getRequestLine() + " to " + target + " via " + proxy);

        CloseableHttpResponse response = httpclient.execute(target, request);
        InputStreamReader isr = new InputStreamReader(response.getEntity().getContent(), "cp1252");
        BufferedReader br = new BufferedReader(isr);
        String line;
        while ((line = br.readLine()) != null) {
            ret.append(line);
        }
        try {
            System.out.println("----------------------------------------");
            System.out.println(response.getStatusLine());
            EntityUtils.consume(response.getEntity());
        } finally {
            response.close();
        }
    } finally {
        httpclient.close();
    }
    System.out.println(ret.toString());
}

---

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