Example usage for org.apache.commons.httpclient DefaultHttpMethodRetryHandler DefaultHttpMethodRetryHandler

Introduction

In this page you can find the example usage for org.apache.commons.httpclient DefaultHttpMethodRetryHandler DefaultHttpMethodRetryHandler.

Prototype

public DefaultHttpMethodRetryHandler(int paramInt, boolean paramBoolean) 

Source Link

Usage

From source file:fr.cls.atoll.motu.library.misc.cas.HttpClientTutorial.java

public static void main(String[] args) {

    // test();/*from  ww  w.ja va  2 s  .  c o  m*/
    // System.setProperty("proxyHost", "proxy.cls.fr"); // adresse IP
    // System.setProperty("proxyPort", "8080");
    // System.setProperty("socksProxyPort", "1080");
    //
    // Authenticator.setDefault(new MyAuthenticator());

    // Create an instance of HttpClient.
    // HttpClient client = new HttpClient();
    HttpClient client = new HttpClient(new MultiThreadedHttpConnectionManager());
    // Create a method instance.
    GetMethod method = new GetMethod(url);

    HostConfiguration hostConfiguration = new HostConfiguration();
    hostConfiguration.setProxy("proxy.cls.fr", 8080);
    client.setHostConfiguration(hostConfiguration);

    // Provide custom retry handler is necessary
    method.getParams().setParameter(HttpMethodParams.RETRY_HANDLER,
            new DefaultHttpMethodRetryHandler(3, false));
    // String username = "xxx";
    // String password = "xxx";
    // Credentials credentials = new UsernamePasswordCredentials(username, password);
    // AuthScope authScope = new AuthScope("proxy.cls.fr", 8080);
    //     
    // client.getState().setProxyCredentials(authScope, credentials);

    try {
        // Execute the method.
        int statusCode = client.executeMethod(method);

        if (statusCode != HttpStatus.SC_OK) {
            System.err.println("Method failed: " + method.getStatusLine());
        }

        // Read the response body.
        byte[] responseBody = method.getResponseBody();

        // Deal with the response.
        // Use caution: ensure correct character encoding and is not binary data
        System.out.println(new String(responseBody));

    } catch (HttpException e) {
        System.err.println("Fatal protocol violation: " + e.getMessage());
        e.printStackTrace();
    } catch (IOException e) {
        System.err.println("Fatal transport error: " + e.getMessage());
        e.printStackTrace();
    } finally {
        // Release the connection.
        method.releaseConnection();
    }
}

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From source file:com.kwoksys.framework.util.HttpUtils.java

/**
 * Gets contents from url/*from www . j  a v  a 2 s  .c o  m*/
 * @param url
 * @return
 * @throws Exception
 */
public static String getContent(String url) throws Exception {
    // Create an instance of HttpClient.
    HttpClient client = new HttpClient();

    // Create a method instance.
    GetMethod method = new GetMethod(url);

    // Provide custom retry handler is necessary
    method.getParams().setParameter(HttpMethodParams.RETRY_HANDLER,
            new DefaultHttpMethodRetryHandler(3, false));

    try {
        // Execute the method.
        int statusCode = client.executeMethod(method);

        if (statusCode != HttpStatus.SC_OK) {
            throw new Exception("HTTP method error: " + method.getStatusLine());
        }

        // Read the response body.
        return new String(method.getResponseBody());

    } finally {
        // Release the connection.
        method.releaseConnection();
    }
}

---

From source file:edu.unc.lib.dl.ui.service.XMLRetrievalService.java

public static Document getXMLDocument(String url) throws HttpException, IOException, JDOMException {
    SAXBuilder builder = new SAXBuilder();

    HttpClient client = new HttpClient();
    HttpMethod method = new GetMethod(url);
    method.getParams().setParameter("http.socket.timeout", new Integer(2000));
    method.getParams().setCookiePolicy(CookiePolicy.IGNORE_COOKIES);
    method.getParams().setParameter(HttpMethodParams.RETRY_HANDLER,
            new DefaultHttpMethodRetryHandler(3, false));
    method.getParams().setParameter("http.useragent", "");

    InputStream responseStream = null;
    Document document = null;//w  ww.j  a v a  2 s .c  o  m

    try {
        client.executeMethod(method);
        responseStream = method.getResponseBodyAsStream();
        document = builder.build(responseStream);
    } finally {
        if (responseStream != null)
            responseStream.close();
        method.releaseConnection();
    }

    return document;
}

---

From source file:fr.matriciel.AnnotationClient.java

public static String request(HttpMethod method) throws AnnotationException {

    String response = null;// w  w w  .j  a va 2  s .c o  m

    // Provide custom retry handler is necessary
    method.getParams().setParameter(HttpMethodParams.RETRY_HANDLER,
            new DefaultHttpMethodRetryHandler(3, false));

    try {
        // Execute the method.
        int statusCode = client.executeMethod(method);

        if (statusCode != HttpStatus.SC_OK) {
            System.out.println("Method failed: " + method.getStatusLine());
        }

        // Read the response body.
        byte[] responseBody = method.getResponseBody();
        //TODO Going to buffer response body of large or unknown size. Using getResponseBodyAsStream instead is recommended.

        // Deal with the response.
        // Use caution: ensure correct character encoding and is not binary data
        response = new String(responseBody);

    } catch (HttpException e) {
        throw new AnnotationException("Protocol error executing HTTP request.", e);
    } catch (IOException e) {
        throw new AnnotationException("Transport error executing HTTP request.", e);
    } finally {
        // Release the connection.
        method.releaseConnection();
    }
    return response;

}

---

From source file:idea.clientRequests.httpClientRequester.java

public boolean doHttpget(String csUrl) {
    boolean bStatus = false;
    m_responseBody = null;// w w  w . j  a  va  2  s.c  o  m
    HttpClient client = new HttpClient();
    GetMethod method = new GetMethod(csUrl);

    // Provide custom retry handler is necessary
    DefaultHttpMethodRetryHandler handler = new DefaultHttpMethodRetryHandler(3, false);
    method.getParams().setParameter(HttpMethodParams.RETRY_HANDLER, handler);
    try {
        // Execute the method.
        int statusCode = client.executeMethod(method);
        if (statusCode != HttpStatus.SC_OK) {
            System.err.println("Method failed: " + method.getStatusLine());
        }
        // Read the response body.
        m_responseBody = method.getResponseBody();

        bStatus = true;
    } catch (HttpException e) {
        System.err.println("Fatal protocol violation: " + e.getMessage());
        e.printStackTrace();
    } catch (IOException e) {
        System.err.println("Fatal transport error: " + e.getMessage());
        e.printStackTrace();
    } finally {
        // Release the connection.
        method.releaseConnection();
    }
    return bStatus;
}

---

From source file:io.aos.protocol.http.commons.CommonsHttpClient.java

public static void get(String url) {

    HttpClient client = new HttpClient();
    GetMethod method = new GetMethod(url);
    method.getParams().setParameter(HttpMethodParams.RETRY_HANDLER,
            new DefaultHttpMethodRetryHandler(3, false));

    try {/*www  . j a va  2s .  c o m*/
        int statusCode = client.executeMethod(method);
        if (statusCode != HttpStatus.SC_OK) {
            LOG.error("Method failed: " + method.getStatusLine());
        }
        byte[] responseBody = method.getResponseBody();
        LOG.debug(new String(responseBody, "UTF-8"));
    } catch (HttpException e) {
        LOG.error("Fatal protocol violation: " + e.getMessage(), e);
    } catch (IOException e) {
        LOG.error("Fatal transport error: " + e.getMessage(), e);
    } finally {
        method.releaseConnection();
    }

}

---

From source file:net.sourceforge.jcctray.model.DashboardXmlParser.java

public static DashBoardProjects getProjects(String url, HttpClient client)
        throws HttpException, IOException, SAXException {
    GetMethod method = new GetMethod(url);
    method.getParams().setParameter(HttpMethodParams.RETRY_HANDLER,
            new DefaultHttpMethodRetryHandler(3, false));
    try {/*w w w.ja  va  2 s  .  co  m*/
        int statusCode = client.executeMethod(method);
        if (statusCode != HttpStatus.SC_OK) {
            throw new RuntimeException(
                    ("Could not connect to " + url + ". The server returned a " + statusCode + " status code"));
        }
        return getProjects(method.getResponseBodyAsStream());
    } finally {
        method.releaseConnection();
    }
}

---

From source file:br.com.edu.dbpediaspotlight.AnnotationClient.java

public String request(HttpMethod method) throws AnnotationException {
    String response = null;/* w  w  w .j a  va  2  s . c  o m*/
    // Provide custom retry handler is necessary
    method.getParams().setParameter(HttpMethodParams.RETRY_HANDLER,
            new DefaultHttpMethodRetryHandler(3, false));
    try {
        // Execute the method.
        int statusCode = client.executeMethod(method);
        if (statusCode != HttpStatus.SC_OK) {
            LOG.error("Method failed: " + method.getStatusLine());
        }

        // Read the response body.
        byte[] responseBody = method.getResponseBody(); //TODO Going to buffer response body of large or unknown size. Using getResponseBodyAsStream instead is recommended.

        // Deal with the response.
        // Use caution: ensure correct character encoding and is not binary data
        response = new String(responseBody);

    } catch (HttpException e) {
        LOG.error("Fatal protocol violation: " + e.getMessage());
        throw new AnnotationException("Protocol error executing HTTP request.", e);
    } catch (IOException e) {
        LOG.error("Fatal transport error: " + e.getMessage());
        LOG.error(method.getQueryString());
        throw new AnnotationException("Transport error executing HTTP request.", e);
    } finally {
        // Release the connection.
        method.releaseConnection();
    }
    return response;

}

---

From source file:name.chengchao.myhttpclient.version3_1.HttpClient3Util.java

/**
 * ?url?ResponseBody,method=get/* ww  w .jav a 2  s  . c  om*/
 * 
 * @param url exp:http://192.168.1.1:8080/dir/target.html
 * @return byte[]?
 */
public static byte[] getDataFromUrl(String url, int timeout) {
    if (StringUtils.isBlank(url)) {
        logger.error("url is blank!");
        return null;
    }
    HttpClient httpClient = new HttpClient();
    // 
    httpClient.getHttpConnectionManager().getParams().setConnectionTimeout(8000);
    // ?
    httpClient.getParams().setSoTimeout(timeout);
    GetMethod method = new GetMethod(url);

    // fix???
    method.setRequestHeader("Connection", "close");
    // ??1
    method.getParams().setParameter(HttpMethodParams.RETRY_HANDLER,
            new DefaultHttpMethodRetryHandler(1, false));
    try {
        int statusCode = httpClient.executeMethod(method);
        if (statusCode == HttpStatus.SC_OK) {
            return method.getResponseBody();
        } else {
            throw new RuntimeException("http request error,return code:" + statusCode + ",msg:"
                    + new String(method.getResponseBody()));
        }
    } catch (HttpException e) {
        method.abort();
        logger.error(e.getMessage());
    } catch (IOException e) {
        method.abort();
        logger.error(e.getMessage());
    } finally {
        // Release the connection.
        method.releaseConnection();
    }
    return null;
}

---

From source file:name.chengchao.myhttpclient.version3_1.HttpClient3UtilError.java

/**
 * ?url?ResponseBody,method=get/*  w  ww .j a v  a 2  s . co m*/
 * 
 * @param url exp:http://192.168.1.1:8080/dir/target.html
 * @return byte[]?
 */
public static byte[] getDataFromUrl(String url, int timeout) {
    if (StringUtils.isBlank(url)) {
        logger.error("url is blank!");
        return null;
    }
    HttpClient httpClient = new HttpClient();
    // 
    httpClient.getHttpConnectionManager().getParams().setConnectionTimeout(8000);
    // ?
    httpClient.getParams().setSoTimeout(timeout);
    GetMethod method = new GetMethod(url);

    // fix???
    // method.setRequestHeader("Connection", "close");
    // ??1
    method.getParams().setParameter(HttpMethodParams.RETRY_HANDLER,
            new DefaultHttpMethodRetryHandler(1, false));
    try {
        int statusCode = httpClient.executeMethod(method);
        if (statusCode == HttpStatus.SC_OK) {
            return method.getResponseBody();
        } else {
            throw new RuntimeException("http request error,return code:" + statusCode + ",msg:"
                    + new String(method.getResponseBody()));
        }
    } catch (HttpException e) {
        method.abort();
        logger.error(e.getMessage());
    } catch (IOException e) {
        method.abort();
        logger.error(e.getMessage());
    } finally {
        // Release the connection.
        method.releaseConnection();
    }
    return null;
}

---

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