Example usage for java.net URL openStream

Introduction

In this page you can find the example usage for java.net URL openStream.

Prototype

public final InputStream openStream() throws java.io.IOException

Source Link

Document

Opens a connection to this URL and returns an InputStream for reading from that connection.

Usage

From source file:Main.java

public static String readFile(String link) {
    try {//from   w  w w. ja  va 2s.c om
        // Create a URL for the desired page
        URL url = new URL(link);

        // Read all the text returned by the server
        BufferedReader in = new BufferedReader(new InputStreamReader(url.openStream()));
        String text = "";
        String str;
        while ((str = in.readLine()) != null)
            text += str + "\n";
        in.close();
        return text;
    } catch (MalformedURLException e) {
        e.printStackTrace();
        return e.getMessage();
    } catch (IOException e) {
        e.printStackTrace();
        return e.getMessage();
    }
}

From source file:Main.java

public static Element loadDocument(String value, String type) {
    Document doc = null;/*  w  ww . j  ava2s.  c  om*/
    InputSource xmlInp = null;
    try {
        if (type.equals("location")) {
            URL url = new URL(value);
            xmlInp = new InputSource(url.openStream());
        } else {
            xmlInp = new InputSource(new StringReader(value));
        }
        DocumentBuilderFactory docBuilderFactory = DocumentBuilderFactory.newInstance();
        DocumentBuilder parser = docBuilderFactory.newDocumentBuilder();
        doc = parser.parse(xmlInp);
        Element root = doc.getDocumentElement();
        root.normalize();
        return root;
    } catch (SAXParseException err) {
        System.err.println("URLMappingsXmlDAO ** Parsing error, line " + err.getLineNumber() + ", uri "
                + err.getSystemId());
        System.err.println("URLMappingsXmlDAO error: " + err.getMessage());
    } catch (SAXException e) {
        System.err.println("URLMappingsXmlDAO error: " + e);
    } catch (MalformedURLException mfx) {
        System.err.println("URLMappingsXmlDAO error: " + mfx);
    } catch (IOException e) {
        System.err.println("URLMappingsXmlDAO error: " + e);
    } catch (Exception pce) {
        System.err.println("URLMappingsXmlDAO error: " + pce);
    }
    return null;
}

From source file:com.dicksoft.ocr.util.HttpUtil.java

/**
 * Downloads the text from the specified URL.
 * //from  w w  w .j  av a2  s.c om
 * @param url
 *            the URL of the text to read
 * @return the text
 * @throws IOException
 *             if the URL is malformed, or problem reading the stream
 */
public static String fetchText(String url) throws IOException {
    if (LOG.isDebugEnabled())
        LOG.debug("Http fetch: " + url);
    StringBuffer result = new StringBuffer();
    URL urlReal = null;
    urlReal = new URL(url);
    BufferedInputStream in = null;
    in = new BufferedInputStream(urlReal.openStream());

    int data = 0;
    while (true) {
        data = in.read();
        if (data == -1)
            break;
        else
            result.append((char) data);
    }
    return result.toString();
}

From source file:net.erdfelt.android.sdkfido.logging.Logging.java

public static void config() {
    ClassLoader cl = Thread.currentThread().getContextClassLoader();
    URL url = cl.getResource("logging.properties");
    if (url != null) {
        InputStream in = null;/*from  w w w  .  j a v  a2s.c om*/
        try {
            in = url.openStream();
            LogManager.getLogManager().readConfiguration(in);
        } catch (IOException e) {
            e.printStackTrace(System.err);
        } finally {
            IOUtils.closeQuietly(in);
        }
    }

    System.setProperty("org.apache.commons.logging.Log", "org.apache.commons.logging.impl.Jdk14Logger");
}

From source file:fr.mael.microrss.util.Tools.java

/**
 * Reads an image from an url and converts it to byte array
 * @param url//from  w ww .  j  a v a2s  .  c  o  m
 * @return a byte array representing the image
 */
public static byte[] getImage(String url) {
    try {
        URL imgUrl = new URL(url);
        InputStream inputStream = imgUrl.openStream();
        ByteArrayOutputStream output = new ByteArrayOutputStream();
        byte[] buffer = new byte[1024];

        int n = 0;
        while (-1 != (n = inputStream.read(buffer))) {
            output.write(buffer, 0, n);
        }
        inputStream.close();

        byte[] data = output.toByteArray();
        return data;
    } catch (Exception e) {
        LOG.info("Error get image " + url, e);
    }
    return null;

}

From source file:Main.java

public static Element loadDocument(String location) {
    Document doc = null;// w  ww  . jav a 2 s .  c om
    try {
        URL url = new URL(location);
        InputSource xmlInp = new InputSource(url.openStream());

        DocumentBuilderFactory docBuilderFactory = DocumentBuilderFactory.newInstance();
        DocumentBuilder parser = docBuilderFactory.newDocumentBuilder();
        doc = parser.parse(xmlInp);
        Element root = doc.getDocumentElement();
        root.normalize();
        return root;
    } catch (SAXParseException err) {
        System.err.println("URLMappingsXmlDAO ** Parsing error" + ", line " + err.getLineNumber() + ", uri "
                + err.getSystemId());
        System.err.println("URLMappingsXmlDAO error: " + err.getMessage());
    } catch (SAXException e) {
        System.err.println("URLMappingsXmlDAO error: " + e);
    } catch (java.net.MalformedURLException mfx) {
        System.err.println("URLMappingsXmlDAO error: " + mfx);
    } catch (java.io.IOException e) {
        System.err.println("URLMappingsXmlDAO error: " + e);
    } catch (Exception pce) {
        System.err.println("URLMappingsXmlDAO error: " + pce);
    }
    return null;
}

From source file:com.newrelic.agent.deps.org.apache.http.conn.util.PublicSuffixMatcherLoader.java

public static PublicSuffixMatcher load(final URL url) throws IOException {
    Args.notNull(url, "URL");
    final InputStream in = url.openStream();
    try {/*from w  w w.j a  va 2 s  .  com*/
        return load(in);
    } finally {
        in.close();
    }
}

From source file:Main.java

public static boolean WriteFileFromUrl(String url, String filename) {
    try {//from  w w w .j a v  a 2s . co  m
        URL fileUrl = new URL(url);
        URLConnection connection = fileUrl.openConnection();
        InputStream inputStream = new BufferedInputStream(fileUrl.openStream(), 10240);
        File cacheFile = new File(filename);
        FileOutputStream outputStream = new FileOutputStream(cacheFile);

        byte buffer[] = new byte[1024];
        int dataSize;
        int loadedSize = 0;
        while ((dataSize = inputStream.read(buffer)) != -1) {
            loadedSize += dataSize;
            outputStream.write(buffer, 0, dataSize);
        }

        outputStream.close();
        return true;
    } catch (Exception e) {
        Log.d("#StorageHelper Error:", e.toString());
        return false;
    }
}

From source file:javarestart.Utils.java

static File fetchResourceToTempFile(String resName, String resExt, URL from) {
    try {/*w  w  w. j  ava2s .  c  om*/
        return fetchResourceToTempFile(resName, resExt, from.openStream());
    } catch (IOException e) {
        e.printStackTrace();
        return null;
    }
}

From source file:StringIO.java

/**
 * Read the entire contents of the specified URL and return a
 * single String object containing the contents of the URL.
 * This method does not return until an end of stream is reached
 * for the URL./*  w ww.  ja v  a2s . com*/
 *
 * @param url a URL from which to read
 *
 * @return a String containing the contents of the input URL
 *
 * @throws IOException if the specified URL cannot be opened, or
 * if an I/O error occurs while reading the URL
 */
public static String readFully(URL url) throws IOException {
    return readFully(url.openStream());
}