Streaming large text/html data to browser using JSP.

Current Implementation of my code using JRUN:
JSP program on request from browser does the following:
     i)calls legacy system function that writes output to socket
     ii) calls a java bean function which
          1) collect data from socket and
          2) writes data to "OutputStream" object
Problem: Data that is being painted in the browser is incomplete.
Note : I even tried to write to a file, after receiving data from
socket, instead of writing to browser which resulted the same i.e incomplete
data
Questions:
Why incomplete data is being sent to browser ?
Any other way to stream data to browser ?
Thanks
Madhavi

some ideas:
- maybe you simple forgot a call to flush() on the output stream or a flushBuffer() on the response
- maybe you accidentally set the result size to a value smaller than the transmitted data
- maybe there is a timeout
some hints:
- get you a copy of wget for testing. this is a command line tool that can retrieve urls. there is an option for printing of the HTTP headers
robert

Similar Messages

How to open a pdf file in a web browser using jsp

Hi,
I have a problem opening pdf file in browser using jsp.the following is my code.Can anyone help me.Thanks
response.setContentType("application/pdf");
String filename="C:\\FictPos\\mypdf.pdf";
File file = new File(filename);
FileInputStream in = new FileInputStream(file);
OutputStream out1=response.getOutputStream();
byte[] buf = new byte[4096];
int count = 0;
while ((count = in.read(buf)) >= 0)
out1.write(buf, 0, count);
in.close();
out1.close();
}

Don't know the problem specifically, but here are some suggestions to investigate:
Does it show anything in the page when you view source on it?
I would recommend using a servlet rather than a JSP page for this, if only for the fact the JSPs can insert carriage returns into places where you might not want them to. This might screw up the PDF file format?
Try setting the a link to the jsp, right-click and "save target as..." just to see if it gets any response at all - ie bypass the browser display.
Good luck,
evnafets

How to upload the image and diplay the image in the browser using jsp

How to upload the image and diplay the image in the browser using jsp
thanks
shan

i'll suggest looking for sample code or tutorial with a relevant query in google, which as far more time than us to answer this type of reccurent question

Can I get information regarding the client browser using JSP

can I get information regarding the client browser using JSP. like.. name, screen resolutions, font type, screen width and height of the browser etc.,
if possible then please give me the samples..
thanks,

can I get information regarding the client browser using JSP. like.. name, screen resolutions, font type, screen width and height of the browser etc.,
if possible then please give me the samples..
thanks,

How to get the HTML data formatted display using the Rrt template

hi,
I have a table which has data with html tags in it.
eg as shown below.
sample text is as follows:
<BR>
<b>MY TEST HERE HAS SOME BOLD TEXT IN IT. THIS WHOLE LINE SHOULD BE BOLD</b><br>and the rest of the text will not be bold.
<BR><br>
now I want to be able to display this text with the proper format using BI publisher / rt template.
my report shows the tags as is instead of being formatted.
please let me know how i can fix this
Thanks
knut

http://blogs.oracle.com/xmlpublisher/2007/01/02.

Help! Problem with text/html data flavor

I am having trouble copying text/html mime data to the clipboard. I can copy fine but there seems to be a bug in the JDK that puts extra information onto the clipboard along with the HTML. I am getting the following data copied to the clipboard:
Version:0.9 StartHTML:-1 EndHTML:-1 StartFragment:0000000111 EndFragment:0000000126
...and then the expected HTML.
I cannot see anyway around this. There seems to be no mention of anyone getting this problem ever before (searched google and the java forums).
Anyone ever witnessed this behaviour? If so, do you know a workaround?
Thanks,
Andy

Hi,
thats the way how the data is placed in the clipboard. Actually you usually export data in your clipboard in different multiple DataFlavors, for exemple plain text or even html. If you want to paste your data in an other aplpication, this one looks at the dataflavor and selects his prefered one. So if you want to paste something into an simple editor, you might only get the plain text. Using word, he will prefer HTML FLavor. So it is really only a matter of fact, who you export your data.
Hope I could help you.

Streaming large amounts of data of socket causes corruption?

I'm wrinting an app to transfer large amounts of data via a simple client/server architecture between two machines.
Problem: If I send the data too 'fast', the data arrives corrupted:
- Calls to read() returns wrong data (wrong 'crc')
- Subsequent calls to read() do not return -1 but allow me to read e.g. another 60 or 80 KBytes.
- available() returns always '0'; but I'll get rid of that method anyway (as recommended in other forum entries).
The behaviour is somewhat difficult to repeat, but it fails for me reliably when transferring the data between two separate machines and when setting the number of packets (Sender.TM) to 1000 or larger.
Workaround: Reduce number of packages send to e.g. 1; or intruduce the 'sleep' on the Sender side. Another workaround: Changing alone to java.nio.* did not help, but when I got rid of the Streams and used solely ByteBuffers, the problem disappeared. Unfortunately the Streams are required by other parts of my application.
I'm running the code on two dual-CPU machines connected via
Below are the code of the Sender and the Listener. Please excuse the style as this is only to demonstrate the problem.
import java.io.IOException;
import java.io.OutputStream;
import java.net.InetSocketAddress;
import java.nio.channels.Channels;
import java.nio.channels.SocketChannel;
import java.util.Arrays;
public class SenderBugStreams {
    public static void main(String[] args) throws IOException {
        InetSocketAddress targetAdr = new InetSocketAddress(args[0], Listener.DEFAULT_PORT);
        System.out.println("connecting to: "+targetAdr);
        SocketChannel socket = SocketChannel.open(targetAdr);
        sendData(socket);
        socket.close();
        System.out.println("Finished.");
    static final int TM = 10000;
    static final int TM_SIZE = 1000;
    static final int CRC = 2;
    static int k = 5;
    private static void sendData(SocketChannel socket) throws IOException {
        OutputStream out = Channels.newOutputStream(socket);
        byte[] ba = new byte[TM_SIZE];
        Arrays.fill(ba, (byte)(k++ % 127));
        System.out.println("Sending..."+k);
        for (int i = 0; i < TM; i++) {
            out.write(ba);
//            try {
//                Thread.sleep(10);
//            } catch (InterruptedException e) {
//                // TODO Auto-generated catch block
//                e.printStackTrace();
//                throw new RuntimeException(e);
        out.write(CRC);
        out.flush();
        out.close();
import java.io.IOException;
import java.io.InputStream;
import java.net.InetSocketAddress;
import java.nio.channels.Channels;
import java.nio.channels.ServerSocketChannel;
import java.nio.channels.SocketChannel;
public class ListenerBugStreams {
    static int DEFAULT_PORT = 44521;
     * @param args
     * @throws IOException
    public static void main(String[] args) throws IOException {
        ServerSocketChannel serverChannel = ServerSocketChannel.open();
        serverChannel.socket().bind(new InetSocketAddress(DEFAULT_PORT));
        System.out.print("Waiting...");
        SocketChannel clientSocket = serverChannel.accept();
        System.out.println(" starting, IP=" + clientSocket.socket().getInetAddress() +
            ", Port="+clientSocket.socket().getLocalPort());
        //read data from socket
        readData(clientSocket);
        clientSocket.close();
        serverChannel.close();
        System.out.println("Closed.");
    private static void readData(SocketChannel clientSocket) throws IOException {
        InputStream in = Channels.newInputStream(clientSocket);
        //read and ingest objects
        byte[] ba = null;
        for (int i = 0; i < SenderBugStreams.TM; i++) {
            ba = new byte[SenderBugStreams.TM_SIZE];
            in.read(ba);
            System.out.print("*");
        //verify checksum
        int crcIn = in.read();
        if (SenderBugStreams.CRC != crcIn) {
            System.out.println("ERROR: Invalid checksum: "+SenderBugStreams.CRC+"/"+crcIn);
        System.out.println(ba[0]);
        int x = in.read();
        int remaining = 0;
        while (x != -1) {
            remaining++;
            x = in.read();
        System.out.println("Remaining:"+in.available()+"/"+remaining);
        System.out.println(" "+SenderBug.TM+" objects ingested.");
        in.close();
}

Here is your trouble:
in.read(ba);read(byte[]) does not read N bytes, it reads up to N bytes. If one byte has arrived then it reads and returns that one byte. You always need to check the return value of read(byte[]) to see how much you got (also check for EOF). TCP chops up the written data to whatever packets it feels like and that makes read(byte[]) pretty random.
You can use DataInputStream which has a readFully() method; it loops calling read() until it gets the full buffer's worth. Or you can write a little static utility readFully() like so:
    // Returns false if hits EOF immediately. Otherwise reads the full buffer's
    // worth. If encounters EOF in mid-packet throws an IOException.
    public static boolean readFully(InputStream in, byte buf[])
        throws IOException
        return readFully(in, buf, 0, buf.length);
    public static boolean readFully(InputStream in, byte buf[], int pos, int len)
        throws IOException
        int got_total = 0;
        while (got_total < len) {
            int got = in.read(buf, pos + got_total, len - got_total);
            if (got == -1) {
                if (got_total == 0)
                    return false;
                throw new EOFException("readFully: end of file; expected " +
                                       len + " bytes, got only " + got_total);
            got_total += got;
        return true;
    }

Display binary data from DB in browser using JSP

Hello everyone:
I uploaded some files from browser and stored the files in bytes in the database, but later on I could not display the files in browser without saving them to a local storage first. Is there any way I can send the bytes to the browser in the right format using JSP?
I tried the following:
response.setContentType(..)
response.getOutputStream().write(bytes);
I can see that the browser can get the right contentType, but with a bunch of weird symbols in the browser. Please help.
Thank you very much for your time.
Heather

I actually had to do this a few months ago. There are ways to perform this kind display using various distributed object (i.e., using MS Word OLE objects to "interpret" the byte for you, etc.). But this soon got extremely difficult to manage (and I actually had to use Perl/CGI for the majority of it).
The solution I went with was to implement a "cache" directory on the web server. Basically, the JSP/Servlet can simply check the cache and if file not there, create it from the database. Then send a redirect back to the browser to this newly-created file. The browser will then appropriately open the document. I tested this with both Netscape and IE browsers and common MIME types such as text files, MS Office docs, zip files, PDFs, RTFs.
Not ideal, but unfortunately the best I came up with.

Display JTree in browser using JSP

i have a program that converts xml file in to tree structure(using Swing). When i run this using eclipse then it is working. Swing is an extension of applet , right. I want to embed this in an HTML page(JSP). so that i can display the tree structure. Its gives class not foung error.
It is not posiible to embed it. I think if it extends an Applet then it will display. But i don't know how to convert that. It gives error if i convert.
pls help
CODE:
package TreeGen;
import javax.xml.parsers.DocumentBuilder;
import javax.xml.parsers.DocumentBuilderFactory;
import javax.xml.parsers.ParserConfigurationException;
import org.xml.sax.SAXException;
import java.io.IOException;
import org.w3c.dom.Document;
// Basic GUI components
import javax.swing.JFrame;
import javax.swing.JPanel;
import javax.swing.JScrollPane;
import javax.swing.JTree;
// GUI components for right-hand side
import javax.swing.JSplitPane;
import javax.swing.JEditorPane;
// GUI support classes
import java.awt.BorderLayout;
import java.awt.Dimension;
import java.awt.Toolkit;
import java.awt.event.WindowEvent;
import java.awt.event.WindowAdapter;
// For creating borders
import javax.swing.border.EmptyBorder;
import javax.swing.border.BevelBorder;
import javax.swing.border.CompoundBorder;
// For creating a TreeModel
import javax.swing.tree.*;
import javax.swing.event.*;
import java.util.*;
public class TreeGen extends JPanel
     static Document document;
     boolean compress = false;
     static final int windowHeight = 660;
     static final int leftWidth = 300;
     static final int rightWidth = 640;
     static final int windowWidth = leftWidth + rightWidth;
     public TreeGen()
     EmptyBorder eb = new EmptyBorder(5,5,5,5);
     BevelBorder bb = new BevelBorder(BevelBorder.LOWERED);
     CompoundBorder cb = new CompoundBorder(eb,bb);
     this.setBorder(new CompoundBorder(cb,eb));
     JTree tree = new JTree(new DomToTreeModelAdapter());
     JScrollPane treeView = new JScrollPane(tree);
     treeView.setPreferredSize(
          new Dimension( leftWidth, windowHeight ));
     final
     JEditorPane htmlPane = new JEditorPane("text/html","");
     htmlPane.setEditable(true);
     JScrollPane htmlView = new JScrollPane(htmlPane);
     htmlView.setPreferredSize(
          new Dimension( rightWidth, windowHeight ));
     tree.addTreeSelectionListener(
          new TreeSelectionListener()
          public void valueChanged(TreeSelectionEvent e)
               TreePath p = e.getNewLeadSelectionPath();
               if (p != null)
               AdapterNode adpNode =
                    (AdapterNode) p.getLastPathComponent();
               htmlPane.setText(adpNode.content());
     JSplitPane splitPane =
          new JSplitPane( JSplitPane.HORIZONTAL_SPLIT,
                              treeView,
                              htmlView );
     splitPane.setContinuousLayout( false );
     splitPane.setDividerLocation( leftWidth );
     splitPane.setDividerSize(1);
     splitPane.setPreferredSize(
               new Dimension( windowWidth + 10, windowHeight+10 ));
     this.setLayout(new BorderLayout());
     this.add("Center", splitPane );
     //return menuBar;
     } // constructor
     public static void main(String argv[])
          DocumentBuilderFactory factory =
               DocumentBuilderFactory.newInstance();
          try {
          DocumentBuilder builder = factory.newDocumentBuilder();
          document = builder.parse("C:/Program Files/Apache Software Foundation/Tomcat 5.0/webapps/parser1/sample.xml");
               makeFrame();
          } catch (SAXException sxe){
               System.out.println("ERROR");
          Exception x = sxe;
          if (sxe.getException() != null)
               x = sxe.getException();
          x.printStackTrace();
          } catch (ParserConfigurationException pce) {
               pce.printStackTrace();
          } catch (IOException ioe) {
          ioe.printStackTrace();
     } // main
     public static void makeFrame()
          JFrame frame = new JFrame("DOM Echo");
          frame.addWindowListener(
          new WindowAdapter() {
               public void windowClosing(WindowEvent e) {System.exit(0);}
          final TreeGen echoPanel =
          new TreeGen();
          frame.getContentPane().add("Center", echoPanel );
          frame.pack();
          Dimension screenSize =
          Toolkit.getDefaultToolkit().getScreenSize();
          int w = windowWidth + 10;
          int h = windowHeight + 10;
          frame.setSize(w, h);
          frame.setVisible(true);
     } // makeFrame
     static final String[] typeName = {
          "none",
          "Element",
          "Attr",
          "Text",
          "CDATA",
          "EntityRef",
          "Entity",
          "ProcInstr",
          "Comment",
          "Document",
          "DocType",
          "DocFragment",
          "Notation",
     static final int ELEMENT_TYPE = 1;
     static final int ATTR_TYPE = 2;
     static final int TEXT_TYPE = 3;
     static final int CDATA_TYPE = 4;
     static final int ENTITYREF_TYPE = 5;
     static final int ENTITY_TYPE = 6;
     static final int PROCINSTR_TYPE = 7;
     static final int COMMENT_TYPE = 8;
     static final int DOCUMENT_TYPE = 9;
     static final int DOCTYPE_TYPE = 10;
     static final int DOCFRAG_TYPE = 11;
     static final int NOTATION_TYPE = 12;
static String[] treeElementNames = {
          "slideshow",
          "slide",
          "title", // For slideshow #1
          "slide-title", // For slideshow #10
          "item",
     boolean treeElement(String elementName) {
     for (int i=0; i<treeElementNames.length; i++) {
          //System.out.println(treeElementNames);
          if ( elementName.equals(treeElementNames[i]) )
          return true;
     return false;
     public class AdapterNode
     org.w3c.dom.Node domNode;
     public AdapterNode(org.w3c.dom.Node node)
          domNode = node;
     public String toString()
          String s = typeName[domNode.getNodeType()];
          String nodeName = domNode.getNodeName();
          if (! nodeName.startsWith("#"))
          s += ": " + nodeName;
          if (compress)
          String t = content().trim();
          int x = t.indexOf("\n");
          if (x >= 0) t = t.substring(0, x);
          s += " " + t;
          return s;
          if (domNode.getNodeValue() != null)
          if (s.startsWith("ProcInstr"))
               s += ", ";
          else
               s += ": ";
          // Trim the value to get rid of NL's at the front
          String t = domNode.getNodeValue().trim();
          int x = t.indexOf("\n");
          if (x >= 0) t = t.substring(0, x);
          s += t;
          return s;
     public String content()
          String s = "";
          org.w3c.dom.NodeList nodeList = domNode.getChildNodes();
          for (int i=0; i<nodeList.getLength(); i++)
          org.w3c.dom.Node node = nodeList.item(i);
          int type = node.getNodeType();
          //System.out.println(type);
          AdapterNode adpNode = new AdapterNode(node); //inefficient, but works
          if (type == ELEMENT_TYPE)
               if ( treeElement(node.getNodeName()) ) continue;
               s += "<" + node.getNodeName() + ">";
               s += adpNode.content();
               s += "</" + node.getNodeName() + ">";
          else if (type == TEXT_TYPE)
               s += node.getNodeValue();
          else if (type == ENTITYREF_TYPE)
               s += adpNode.content();
          else if (type == CDATA_TYPE)
               StringBuffer sb = new StringBuffer( node.getNodeValue() );
               for (int j=0; j<sb.length(); j++)
               if (sb.charAt(j) == '<')
                    sb.setCharAt(j, '&');
                    sb.insert(j+1, "lt;");
                    j += 3;
               else if (sb.charAt(j) == '&')
                    sb.setCharAt(j, '&');
                    sb.insert(j+1, "amp;");
                    j += 4;
               s += "<pre>" + sb + "\n</pre>";
          return s;
     public int index(AdapterNode child)
          int count = childCount();
          for (int i=0; i<count; i++)
          AdapterNode n = this.child(i);
          if (child.domNode == n.domNode) return i;
          return -1; // Should never get here.
     public AdapterNode child(int searchIndex)
          org.w3c.dom.Node node =
               domNode.getChildNodes().item(searchIndex);
          if (compress)
          int elementNodeIndex = 0;
          for (int i=0; i<domNode.getChildNodes().getLength(); i++)
               node = domNode.getChildNodes().item(i);
               if (node.getNodeType() == ELEMENT_TYPE
               && treeElement( node.getNodeName() )
               && elementNodeIndex++ == searchIndex)
               break;
          return new AdapterNode(node);
     public int childCount()
          if (!compress)
          return domNode.getChildNodes().getLength();
          int count = 0;
          for (int i=0; i<domNode.getChildNodes().getLength(); i++)
          org.w3c.dom.Node node = domNode.getChildNodes().item(i);
          if (node.getNodeType() == ELEMENT_TYPE
          && treeElement( node.getNodeName() ))
               ++count;
          return count;
     public class DomToTreeModelAdapter
     implements javax.swing.tree.TreeModel
     public Object getRoot()
          return new AdapterNode(document);
     public boolean isLeaf(Object aNode)
          AdapterNode node = (AdapterNode) aNode;
          if (node.childCount() > 0) return false;
          return true;
     public int getChildCount(Object parent)
          AdapterNode node = (AdapterNode) parent;
          return node.childCount();
     public Object getChild(Object parent, int index)
          AdapterNode node = (AdapterNode) parent;
          return node.child(index);
     public int getIndexOfChild(Object parent, Object child)
          AdapterNode node = (AdapterNode) parent;
          return node.index((AdapterNode) child);
     public void valueForPathChanged(TreePath path, Object newValue)
     private Vector listenerList = new Vector();
     public void addTreeModelListener(TreeModelListener listener)
          if ( listener != null
          && ! listenerList.contains( listener ) )
          listenerList.addElement( listener );
     public void removeTreeModelListener(TreeModelListener listener)
          if ( listener != null )
          listenerList.removeElement( listener );
     public void fireTreeNodesChanged( TreeModelEvent e )
          Enumeration listeners = listenerList.elements();
          while ( listeners.hasMoreElements() )
          TreeModelListener listener =
               (TreeModelListener) listeners.nextElement();
          listener.treeNodesChanged( e );
     public void fireTreeNodesInserted( TreeModelEvent e )
          Enumeration listeners = listenerList.elements();
          while ( listeners.hasMoreElements() )
          TreeModelListener listener =
               (TreeModelListener) listeners.nextElement();
          listener.treeNodesInserted( e );
     public void fireTreeNodesRemoved( TreeModelEvent e )
          Enumeration listeners = listenerList.elements();
          while ( listeners.hasMoreElements() )
          TreeModelListener listener =
               (TreeModelListener) listeners.nextElement();
          listener.treeNodesRemoved( e );
     public void fireTreeStructureChanged( TreeModelEvent e )
          Enumeration listeners = listenerList.elements();
          while ( listeners.hasMoreElements() )
          TreeModelListener listener =
               (TreeModelListener) listeners.nextElement();
          listener.treeStructureChanged( e );

I actually had to do this a few months ago. There are ways to perform this kind display using various distributed object (i.e., using MS Word OLE objects to "interpret" the byte for you, etc.). But this soon got extremely difficult to manage (and I actually had to use Perl/CGI for the majority of it).
The solution I went with was to implement a "cache" directory on the web server. Basically, the JSP/Servlet can simply check the cache and if file not there, create it from the database. Then send a redirect back to the browser to this newly-created file. The browser will then appropriately open the document. I tested this with both Netscape and IE browsers and common MIME types such as text files, MS Office docs, zip files, PDFs, RTFs.
Not ideal, but unfortunately the best I came up with.

How to put data into textbox using JSP

How can I put data into a textbox using JSP?
This code prints to a html page but I want it inside an text area:
// Print out the type and file name of each row.
        while(ftplrs.next())
            int type = ftplrs.getType();
            if(type == FtpListResult.DIRECTORY)
                out.print("DIR\t");
            else if(type == FtpListResult.FILE)
                out.print("FILE\t");
            else if(type == FtpListResult.LINK)
                out.print("LINK\t");
            else if(type == FtpListResult.OTHERS)
                out.print("OTHER\t");
            out.print(ftplrs.getName() +"<br>");
        }I have tried with the code below:
<textarea name="showDirectoryContent" rows="10" cols="70">
<%
       // Print out the type and file name of each row.
        while(ftplrs.next())
            int type = ftplrs.getType();
            if(type == FtpListResult.DIRECTORY)
%>
                <%= "DIR\t" %>
<%            else if(type == FtpListResult.FILE) %>
                <%= "FILE\t" %>
<%            else if(type == FtpListResult.LINK) %>
                <%= "LINK\t" %>
<%            else if(type == FtpListResult.OTHERS) %>
                <%= "OTHER\t" %>
<%            String temp = ftplrs.getName() +"<br>");
              <%= temp > <br>
%>
</textarea>I get the following error:
Location: /myJSPs/jsp/grid-portal-project/processviewfiles_dir.jsp
Internal Servlet Error:
org.apache.jasper.JasperException: Unable to compile Note: sun.tools.javac.Main has been deprecated.
C:\tomcat\jakarta-tomcat-3.3.1\work\DEFAULT\myJSPs\jsp\grid_0002dportal_0002dproject\processviewfiles_dir_3.java:151: 'else' without 'if'.
else if(type == FtpListResult.FILE)
^
C:\tomcat\jakarta-tomcat-3.3.1\work\DEFAULT\myJSPs\jsp\grid_0002dportal_0002dproject\processviewfiles_dir_3.java:165: 'else' without 'if'.
else if(type == FtpListResult.LINK)
^
C:\tomcat\jakarta-tomcat-3.3.1\work\DEFAULT\myJSPs\jsp\grid_0002dportal_0002dproject\processviewfiles_dir_3.java:179: 'else' without 'if'.
else if(type == FtpListResult.OTHERS)
^
C:\tomcat\jakarta-tomcat-3.3.1\work\DEFAULT\myJSPs\jsp\grid_0002dportal_0002dproject\processviewfiles_dir_3.java:193: ';' expected.
String temp = ftplrs.getName() +"");
^
4 errors, 1 warning
     at org.apache.tomcat.facade.JasperLiaison.javac(JspInterceptor.java:898)
     at org.apache.tomcat.facade.JasperLiaison.processJspFile(JspInterceptor.java:733)
     at org.apache.tomcat.facade.JspInterceptor.requestMap(JspInterceptor.java:506)
     at org.apache.tomcat.core.ContextManager.processRequest(ContextManager.java:968)
     at org.apache.tomcat.core.ContextManager.internalService(ContextManager.java:875)
     at org.apache.tomcat.core.ContextManager.service(ContextManager.java:833)
     at org.apache.tomcat.modules.server.Http10Interceptor.processConnection(Http10Interceptor.java:176)
     at org.apache.tomcat.util.net.TcpWorkerThread.runIt(PoolTcpEndpoint.java:494)
     at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:516)
     at java.lang.Thread.run(Thread.java:536)
Please help???

Yes indeed this works:
<textarea name="showDirectoryContent" rows="10" cols="70">
<%
       // Print out the type and file name of each row.
        while(ftplrs.next())
            int type = ftplrs.getType();
            if(type == FtpListResult.DIRECTORY)
{%>
                <%= "DIR\t" %>
<%}            else if(type == FtpListResult.FILE) {%>
                <%= "FILE\t" %>
<%}            else if(type == FtpListResult.LINK) {%>
                <%= "LINK\t" %>
<%}            else if(type == FtpListResult.OTHERS) %>
                <%= "OTHER\t" %>
              <%= ftplrs.getName() %>
<%
%>

Diaplay Word file stored in blob into a browser using JSP

Dear All
I have files stored in oracle table in a blob field.I store the files using forms 10g and webutil. I can upload the files and display them successfully in forms, however when i use JSP to retrieve the files and display them in Internet Explorer, I'm able to display the pdf files, bmp , jpg and video but I'm getting junk characters when I try displaying (word , excel , access or powerpoint files which might contain arabic Characters )
the code I use to display the files is as follows :
<%
try
Connection conn = null;
String username=session.getAttribute("username").toString().toUpperCase();
String password=session.getAttribute("password").toString().toUpperCase();
String ip = "*****************";
String sid = "***************";
Class.forName("oracle.jdbc.driver.OracleDriver");
conn = DriverManager.getConnection("jdbc:oracle:thin:@"+ip+":1521:"+sid,username,password);
String par = request.getParameter("LETTER");
String par1 = request.getParameter("SERIAL");
Statement stmt = conn.createStatement();
ResultSet rs = stmt.executeQuery("select * from TableName where PK1 like '"+par+"'"+" and PK2 like '"+par1+"'" );
if (rs.next())
Blob pic = null;
byte[] blobBytesArray = null;
OutputStream stream = response.getOutputStream();
pic = rs.getBlob("BLOBFIELD");
int len = new Integer( new Long( pic.length()).toString() ).intValue();
blobBytesArray = pic.getBytes(1,len);
if (blobBytesArray != null)
if (blobBytesArray.length > 0 )
stream.write(blobBytesArray) ;
catch(Exception e)
System.out.println("Exception: " + e.getMessage() + "<BR>");
%>
can you please guide me of how to display other file types.
Best Regards.

Hello,
Ideally when you store the document put the content-type in a column and set the content type in your JSP. This will indicate to the browser what is the type of file and you should not have any issue with any type.
Regards
Tugdual Grall

Displaying data in xml using jsp

how do we display data in database from jsp using xlst format in xml browser view

how do we display data in database from jsp using xlst
format in xml browser viewRefer this Post
http://forum.java.sun.com/thread.jsp?forum=45&thread=482077&tstart=0&trange=15
-Regards
Manikantan

Updating Data in Database using JSP

Hi all,
Can anyone please give me an idea that i have a JSP page that connects to the MS Access database. Now i have a query that shows all the data sorted by date for each individual user. Now if anyone wants to update from there meaning that there should be an update button.And if anyone press that then all the on the particular row will be shown in text boxes and then the user can modify the data. and press update to send the data to the database and show the correct one on that page again.
I know it is a bit hazy. Noe point is i created the query and the update button. Now how can i create text boxes for a particular row if button pressed and also i want to show the dataon this page again dont want to go to another page and do the same thing again. This will enable user to update each row separately on the same page and after all these he can log out. Please help me.
Another question how can i pass some data from an HTML form to the same JSP but in a different place meaning that if i direct the form to the same JSP like "form action=same.jsp" then it will start doing everything from the beginning of the page. But i want to go to a particular form of the same JSP page. Can anyone please help me.
I will be very grateful
Thanks.

Can anyone please look at it. Very Urgent. Thanks

How to manipulate data in AS400 using JSP?

hi i am developing a system and i am using JSP with AS400 as its database.
My question in how am i be able to access the data from the database to the pages?
How can i also manipulate the data in the database using JSPs?ex..add,edit,delete
Can anyone help me about it..it would be better if i got to see some sample codes.

Now then first of all lets come back to origination of specification
to me AS 400 is a product technology from IBM.
IBM offers solutions for operating on respective platform using a specific Application Programming Environment and if you are looking for a solution using Java Environments the below PDF / articles might have to serve your need.
http://www.redbooks.ibm.com/pubs/html/as400/v4r5/ic2924/info/java/rzaid/java400.pdf
http://search400.techtarget.com/tip/1,289483,sid3_gci537120,00.html?FromTaxonomy=%2Fpr%2F2fa
http://publib.boulder.ibm.com/iseries/v5r1/ic2924/index.htm?info/rzahh/javadoc/RLReadFileExample.html
http://publib.boulder.ibm.com/infocenter/iadthelp/v6r0/index.jsp?topic=/com.ibm.etools.iseries.javatools.doc/tasks/t4over.htmand if you are looking for a open source solution the below project library might intrest you
http://jt400.sourceforge.net/Hope that might help :)
REGARDS,
RaHuL

Uploading the file to server from the browser using JSP

I have facing difficulty while uploading the file from the browser using user interface to the server or to the database. As previousy i was working in coldfusion, i find it very easy there with cffile command, but i am confused how to do that in JSP
please reply soon, as i am stuck in my project because of that
Sarosh

Check out http://www.jspsmart.com , They have a nice free upload api that can be used w/ JSPs or Servlets. I hear O'Reilly has a nice one too. May as well use someone elses if they've done it already.

Streaming large text/html data to browser using JSP.

Similar Messages

Maybe you are looking for