Example usage for java.net URLConnection getInputStream

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:ElementIteratorExample.java

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

    if (args.length != 1) {
        System.err.println("Usage: java ElementIteratorExample input-URL");
    }/*from ww w .ja  v  a 2  s  . c  o  m*/

    // Load HTML file synchronously
    URL url = new URL(args[0]);
    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);

    // Parse
    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) || (name == HTML.Tag.H2) || (name == HTML.Tag.H3))) {
            // Build up content text as it may be within multiple elements
            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());
        }
    }
    System.exit(0);
}

---

From source file:WebClient.java

public static void main(String[] args) throws Exception {
        CookieStore store = new MyCookieStore();
        CookiePolicy policy = new MyCookiePolicy();
        CookieManager handler = new CookieManager(store, policy);
        CookieHandler.setDefault(handler);
        URL url = new URL("http://localhost:8080/cookieTest.jsp");
        URLConnection conn = url.openConnection();

        InputStream in = conn.getInputStream();
        BufferedReader reader = new BufferedReader(new InputStreamReader(in));
        String input;//from   w ww  .j a v a 2s.  co m
        while ((input = reader.readLine()) != null) {
            System.out.println(input);
        }
        reader.close();

    }

---

From source file:MainClass.java

public static void main(String[] args) throws Exception {
    URL url = new URL("http://www.x.com");
    URLConnection urlc = url.openConnection();
    urlc.setRequestProperty("User-Agent", "Mozilla 5.0 (Windows; U; " + "Windows NT 5.1; en-US; rv:1.8.0.11) ");

    InputStream is = urlc.getInputStream();
    int c;//from  w  ww .  j av a2s .c om
    while ((c = is.read()) != -1)
        System.out.print((char) c);
}

---

From source file:MainClass.java

public static void main(String[] args) throws Exception {
    Date today = new Date();
    long millisecondsPerDay = 24 * 60 * 60 * 1000;

    URL u = new URL("http://www.java2s.com");
    URLConnection uc = u.openConnection();
    uc.setIfModifiedSince((new Date(today.getTime() - millisecondsPerDay)).getTime());
    InputStream in = new BufferedInputStream(uc.getInputStream());
    Reader r = new InputStreamReader(in);
    int c;//  w w  w. j  a  v  a2  s  .c  o  m
    while ((c = r.read()) != -1) {
        System.out.print((char) c);
    }
}

---

From source file:Main.java

License:asdf

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

    URLConnection conn = new URL("http://www.yourserver.com").openConnection();
    conn.setDoInput(true);//from   www.  jav a  2s .co m
    conn.setRequestProperty("Authorization", "asdfasdf");
    conn.connect();

    InputStream in = conn.getInputStream();
}

---

From source file:Main.java

public static void main(String[] argv) throws Exception {
    int size;//  w  w w  .j a  v  a2s . c  o  m
    URL url = new URL("http://www.server.com");
    URLConnection conn = url.openConnection();
    size = conn.getContentLength();
    if (size < 0)
        System.out.println("Could not determine file size.");
    else
        System.out.println(size);
    conn.getInputStream().close();

}

---

From source file:geocodingsql.Main.java

/**
 * @param args the command line arguments
 */// w  w  w  . j  a v a 2 s  .co m
public static void main(String[] args) throws JSONException {
    Main x = new Main();
    ResultSet rs = null;
    String string = "";

    x.establishConnection();
    rs = x.giveName();

    try {
        while (rs.next()) {
            string += rs.getString(1) + " ";
        }

        JOptionPane.showMessageDialog(null, string, "authors", 1);
    } catch (Exception e) {
        System.out.println("Problem when printing the database.");
    }
    x.closeConnection();

    // Now do Geocoding
    String req = "https://maps.googleapis.com/maps/api/geocode/json?latlng=41.3166662867211,-72.9062497615814&result_type=point_of_interest&key="
            + key;
    try {
        URL url = new URL(req + "&sensor=false");
        URLConnection conn = url.openConnection();
        ByteArrayOutputStream output = new ByteArrayOutputStream(1024);
        IOUtils.copy(conn.getInputStream(), output);
        output.close();
        req = output.toString();
    } catch (Exception e) {
        System.out.println("Geocoding Error");
    }
    JSONObject jObject = new JSONObject(req);
    JSONArray resultArray = jObject.getJSONArray("results");
    //this prints out the neighborhood of the provided coordinates
    System.out.println(resultArray.getJSONObject(0).getJSONArray("address_components")
            .getJSONObject("neighborhood").getString("long_name"));
}

---

From source file:Main.java

public static void main(String[] argv) throws Exception {
    String data = URLEncoder.encode("key1", "UTF-8") + "=" + URLEncoder.encode("value1", "UTF-8");
    data += "&" + URLEncoder.encode("key2", "UTF-8") + "=" + URLEncoder.encode("value2", "UTF-8");

    URL url = new URL("http://server.com:80/cgi");
    URLConnection conn = url.openConnection();
    conn.setDoOutput(true);/*from  w ww  . j  a v a2  s.  c om*/
    OutputStreamWriter wr = new OutputStreamWriter(conn.getOutputStream());
    wr.write(data);
    wr.flush();

    BufferedReader rd = new BufferedReader(new InputStreamReader(conn.getInputStream()));
    String line;
    while ((line = rd.readLine()) != null) {
        System.out.println(line);
    }
    wr.close();
    rd.close();
}

---

From source file:com.manning.blogapps.chapter10.examples.AuthGetJava.java

public static void main(String[] args) throws Exception {
    if (args.length < 3) {
        System.out.println("USAGE: authget <username> <password> <url>");
        System.exit(-1);/*from   ww w .  j a  v a2  s.c om*/
    }
    String credentials = args[0] + ":" + args[1];

    URL url = new URL(args[2]);
    URLConnection conn = url.openConnection();

    conn.setRequestProperty("Authorization",
            "Basic " + new String(Base64.encodeBase64(credentials.getBytes())));

    BufferedReader in = new BufferedReader(new InputStreamReader(conn.getInputStream()));

    String s = null;
    while ((s = in.readLine()) != null) {
        System.out.println(s);
    }
}

---

From source file:MainClass.java

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

    String encoding = "ISO-8859-1";
    URL u = new URL("http://www.java2s.com");
    URLConnection uc = u.openConnection();
    String contentType = uc.getContentType();
    int encodingStart = contentType.indexOf("charset=");
    if (encodingStart != -1) {
        encoding = contentType.substring(encodingStart + 8);
    }// w ww .j  a  v a2  s  . c om
    InputStream in = new BufferedInputStream(uc.getInputStream());
    Reader r = new InputStreamReader(in, encoding);
    int c;
    while ((c = r.read()) != -1) {
        System.out.print((char) c);
    }
}

---

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