Example usage for java.net URLConnection getInputStream

List of usage examples for java.net URLConnection getInputStream

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Introduction

In this page you can find the example usage for java.net URLConnection getInputStream.

Prototype

public InputStream getInputStream() throws IOException

Source Link

Document

Returns an input stream that reads from this open connection.

Usage

From source file:DocumentIteratorExample.java

public static void main(String args[]) throws Exception {
    URL url = new URL("http://www.java2s.com");
    URLConnection connection = url.openConnection();
    InputStream is = connection.getInputStream();
    InputStreamReader isr = new InputStreamReader(is);
    BufferedReader br = new BufferedReader(isr);

    HTMLEditorKit htmlKit = new HTMLEditorKit();
    HTMLDocument htmlDoc = (HTMLDocument) htmlKit.createDefaultDocument();
    HTMLEditorKit.Parser parser = new ParserDelegator();
    HTMLEditorKit.ParserCallback callback = htmlDoc.getReader(0);
    parser.parse(br, callback, true);//www .  j av a  2  s.  c o m

    for (HTMLDocument.Iterator iterator = htmlDoc.getIterator(HTML.Tag.A); iterator.isValid(); iterator
            .next()) {

        AttributeSet attributes = iterator.getAttributes();
        String srcString = (String) attributes.getAttribute(HTML.Attribute.HREF);
        System.out.print(srcString);
        int startOffset = iterator.getStartOffset();
        int endOffset = iterator.getEndOffset();
        int length = endOffset - startOffset;
        String text = htmlDoc.getText(startOffset, length);
        System.out.println(" - " + text);
    }
    System.exit(0);
}

From source file:Main.java

public static void main(String[] argv) throws Exception {

    URL url = new URL("http://www.java.com/");
    URLConnection urlConnection = url.openConnection();
    DataInputStream dis = new DataInputStream(urlConnection.getInputStream());
    String html = "", tmp = "";
    while ((tmp = dis.readUTF()) != null) {
        html += " " + tmp;
    }/*from  ww w.j  a  v a 2 s.  c o m*/
    dis.close();

    html = html.replaceAll("\\s+", " ");
    Pattern p = Pattern.compile("<title>(.*?)</title>");
    Matcher m = p.matcher(html);
    while (m.find() == true) {
        System.out.println(m.group(1));
    }
}

From source file:Main.java

public static void main(String args[]) throws Exception {
    URL url = new URL("http://www.google.com");
    URLConnection httpCon = (URLConnection) url.openConnection();

    System.out.println(URLConnection.guessContentTypeFromStream(httpCon.getInputStream()));

}

From source file:MainClass.java

public static void main(String args[]) throws Exception {
    URL url = new URL("http://www.java2s.com");
    URLConnection connection = url.openConnection();
    InputStream is = connection.getInputStream();
    InputStreamReader isr = new InputStreamReader(is);
    BufferedReader br = new BufferedReader(isr);

    HTMLEditorKit htmlKit = new HTMLEditorKit();
    HTMLDocument htmlDoc = (HTMLDocument) htmlKit.createDefaultDocument();
    HTMLEditorKit.Parser parser = new ParserDelegator();
    HTMLEditorKit.ParserCallback callback = htmlDoc.getReader(0);
    parser.parse(br, callback, true);/*  w  w  w  .  j a va2  s  . co  m*/

    ElementIterator iterator = new ElementIterator(htmlDoc);
    Element element;
    while ((element = iterator.next()) != null) {
        AttributeSet attributes = element.getAttributes();
        Object name = attributes.getAttribute(StyleConstants.NameAttribute);
        if ((name instanceof HTML.Tag) && (name == HTML.Tag.H1)) {
            StringBuffer text = new StringBuffer();
            int count = element.getElementCount();
            for (int i = 0; i < count; i++) {
                Element child = element.getElement(i);
                AttributeSet childAttributes = child.getAttributes();
                if (childAttributes.getAttribute(StyleConstants.NameAttribute) == HTML.Tag.CONTENT) {
                    int startOffset = child.getStartOffset();
                    int endOffset = child.getEndOffset();
                    int length = endOffset - startOffset;
                    text.append(htmlDoc.getText(startOffset, length));
                }
            }
            System.out.println(name + ": " + text.toString());
        }
    }
}

From source file:Main.java

public static void main(String[] args) throws Exception {
    URLConnection urlc = new URL("http://www.google.com").openConnection();

    BufferedInputStream buffer = new BufferedInputStream(urlc.getInputStream());

    int byteRead;
    while ((byteRead = buffer.read()) != -1) {
        System.out.println((char) byteRead);
    }//from  ww w  . j  av  a  2s. com
    buffer.close();
}

From source file:com.vaadin.buildhelpers.FetchReleaseNotesTickets.java

public static void main(String[] args) throws IOException {
    String version = System.getProperty("vaadin.version");
    if (version == null || version.equals("")) {
        usage();/*  w  w  w. j av  a2s .  co  m*/
    }

    URL url = new URL(queryURL.replace("@version@", version));
    URLConnection connection = url.openConnection();
    InputStream urlStream = connection.getInputStream();

    @SuppressWarnings("unchecked")
    List<String> tickets = IOUtils.readLines(urlStream);

    for (String ticket : tickets) {
        String[] fields = ticket.split("\t");
        if ("id".equals(fields[0])) {
            // This is the header
            continue;
        }
        System.out.println(ticketTemplate.replace("@ticket@", fields[0]).replace("@description@", fields[1]));
    }
    urlStream.close();
}

From source file:MainClass.java

public static void main(String args[]) throws Exception {
    URL url = new URL("http://www.google.com");
    URLConnection connection = url.openConnection();
    InputStream is = connection.getInputStream();
    InputStreamReader isr = new InputStreamReader(is);
    BufferedReader br = new BufferedReader(isr);

    HTMLEditorKit htmlKit = new HTMLEditorKit();
    HTMLDocument htmlDoc = (HTMLDocument) htmlKit.createDefaultDocument();
    HTMLEditorKit.Parser parser = new ParserDelegator();
    HTMLEditorKit.ParserCallback callback = htmlDoc.getReader(0);
    parser.parse(br, callback, true);/*from   ww w  . j a v a  2s  .  c  om*/

    Element element;
    ElementIterator iterator = new ElementIterator(htmlDoc);
    while ((element = iterator.next()) != null) {
        AttributeSet attributes = element.getAttributes();
        Object name = attributes.getAttribute(StyleConstants.NameAttribute);

        if ((name instanceof HTML.Tag) && (name == HTML.Tag.H1 || name == HTML.Tag.H2 || name == HTML.Tag.P)) {
            // Build up content text as it may be within multiple elements
            int count = element.getElementCount();
            for (int i = 0; i < count; i++) {
                Element child = element.getElement(i);
                AttributeSet childAttributes = child.getAttributes();
                if (childAttributes.getAttribute(StyleConstants.NameAttribute) == HTML.Tag.CONTENT) {
                    int startOffset = child.getStartOffset();
                    int endOffset = child.getEndOffset();
                    int length = endOffset - startOffset;
                    System.out.println(htmlDoc.getText(startOffset, length));
                }
            }
        }
    }
}

From source file:Main.java

public static void main(String[] args) throws Exception {
    URLConnection connection = new URL("http://api.androidhive.info/pizza/?format=xml").openConnection();
    InputStream inputStream = connection.getInputStream();
    XMLStreamReader streamReader = XMLInputFactory.newInstance().createXMLStreamReader(inputStream, "UTF-8");
    while (streamReader.hasNext())
        if (streamReader.next() == XMLStreamConstants.START_ELEMENT)
            System.out.println("START_ELEMENT " + streamReader.getName());
}

From source file:Main.java

public static void main(String args[]) throws Exception {
    byte[] b = new byte[1];
    URL url = new URL("http://www.server.com/a.gif");
    URLConnection urlConnection = url.openConnection();
    urlConnection.connect();/* ww  w  .j  av  a2 s  . c o m*/
    DataInputStream di = new DataInputStream(urlConnection.getInputStream());

    FileOutputStream fo = new FileOutputStream("a.gif");
    while (-1 != di.read(b, 0, 1))
        fo.write(b, 0, 1);
    di.close();
    fo.close();
}

From source file:MainClass.java

public static void main(String args[]) throws Exception {
    int c;/*from   w ww.  ja v a 2  s  .c o  m*/
    URL hp = new URL("http", "www.java2s.com", 80, "/");
    URLConnection hpCon = hp.openConnection();
    if (hpCon.getContentLength() > 0) {
        InputStream input = hpCon.getInputStream();
        int i = hpCon.getContentLength();
        while (((c = input.read()) != -1) && (--i > 0)) {
            System.out.print((char) c);
        }
        input.close();
    } else {
        System.out.println("No Content Available");
    }
}