Sending Hashtable[] to Bean from a JSP

Is it possible to send a Hashtable[] from a JSP to bean if possible
how
Thanks
Srikanth

In the HTML side use <input type="file"> tag as follows -
<FORM action='fupload.jsp' method='POST'
enctype='multipart/form-data'>
<P><INPUT type=file id="fldFile" name="fldFile"></P>
<P><INPUT type=submit id='btnSubmit' name='btnSubmit' value='Upload
File'></P>
</FORM>
At the server side
- read the request.getinputstream()
- read the all the buffer until end of the stream
- In the buffer move to the file data disposition, start writing to a file.
To understand completely, read
http://www.ietf.org/rfc/rfc1867.txt
HTH.
Elangs.

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We are trying to use a bean in a JSP using the common tag <jsp:useBean id="... /> in a Netscape Enterprise Server 4.0.
Always we obtain the same error: "JSP compilation error: java.lang.Exception: JSP parse error (line 43) - Incomplete tag ending of /jsp:useBean". Someone can help us?
Thanks.

Check NAS4.0 supports jsp 0.92 specs?
use this tag...
<USEBEAN name="..." type="..." lifespan="..." >
</USEBEAN>

Can't access a Bean from a JSP page !

Hello everybody,
I work with Oracle 8i 8.1.7, it means Oracle HTTP Server + Oracle JSP 1.1.0.0.0. But i don't use the Oracle Servlet Engine.
In this context, i try to load ` JSP page, which instantiate a Bean. But it is impossible to access to this bean !...
1) In jserv.properties file, i have mentionned the CLASSPATH to beans directory, as said in the OracleJSP documentation :
wrapper.classpath=D:\...\myBeansDirectory\
2) i have copied the .class file of my bean in the bean directory ...
So did i forget something ?
Seeking desperatly help !
Thanks.

Hi,
Did you restart the HTTP listener after adding the CLASSPATH to the jserv.properties file? The change in jserv.properties (and in any other configuration files) will take effect only after the listener is restarted.
Good luck,
Srinivas.

Can EJB's be called from within JSP pages?

Hi,
(This is a general question, not necessarily related to OAS in any way...)
I have read/heard conflicting reports pertaining to calling EJBs from within JSP pages.
Can anyone tell me if it's possible to reference an EJB session bean from a JSP page? Can anyone point me to some documentation on the topic?
Any help would be appreciated. Thanks!
David Christopher
[email protected]

Hi,
Check the following code: http://www.jguru.com/jguru/faq/view.jsp?EID=5314 for ejb example.
-Ruchi
<BLOCKQUOTE><font size="1" face="Verdana, Arial">quote:</font><HR>Originally posted by Davidc:
Hi,
(This is a general question, not necessarily related to OAS in any way...)
I have read/heard conflicting reports pertaining to calling EJBs from within JSP pages.
Can anyone tell me if it's possible to reference an EJB session bean from a JSP page? Can anyone point me to some documentation on the topic?
Any help would be appreciated. Thanks!
David Christopher
[email protected]<HR></BLOCKQUOTE>
null

How to send message to MessageDrivenBean from Session bean in JDeveloper

HI I am trying to write a sample program using JDeveloper.
I am trying to do these steps
1) client class which gets Session bean and calls its method.
2) write Stateless Session bean with a method which gets MDB and sends message.
3) write Message Driven Bean ( which prints message recieved from Session bean )
Set up
=======
jms.xml
{JDevHome}\jdev\system9.0.5.2.1618\oc4j-config\jms.xml : changed jms.xml file and included
     <topic name="Demo Topic" location="jms/theTopic">
          <description>A dummy topic</description>
     </topic>
     <topic-connection-factory name="Demo Topic Connection Factory" location="jms/theTopicConnectionFactory">
          <description>A dummy topic connection factory</description>
     </topic-connection-factory>
orion-ejb-jar.xml:
edited MDB entry to
<message-driven-deployment name="MessageLogger"
destination-location="jms/theTopic" connection-factory-location="jms/theTopicConnectionFactory">
</message-driven-deployment>
Implementation
===============
In client class:
I am getting session bean like
Properties props = System.getProperties();
props.put( javax.naming.Context.INITIAL_CONTEXT_FACTORY , "com.evermind.server.rmi.RMIInitialContextFactory");
props.put( javax.naming.Context.SECURITY_PRINCIPAL , "admin" );
props.put( javax.naming.Context.SECURITY_CREDENTIALS,"welcome");
props.put( javax.naming.Context.PROVIDER_URL ,"ormi://localhost:23891/current-workspace-app");
Context ctx = new InitialContext(props);
MySessionHome home = (MySessionHome)
          javax.rmi.PortableRemoteObject.narrow(obj, MySessionHome.class);
This part works fine, and I am calling method on session bean created out of home.
In Session bean:
I want to get TopicConnectionFactory and tried these two ways:
a)
getting the context by setting new environemnt values like
Properties props = System.getProperties();
props.put( javax.naming.Context.INITIAL_CONTEXT_FACTORY , "com.evermind.server.jms.EvermindConnectionFactory");
props.put( javax.naming.Context.SECURITY_PRINCIPAL , "admin" );
props.put( javax.naming.Context.SECURITY_CREDENTIALS,"welcome");
props.put( javax.naming.Context.PROVIDER_URL ,"ormi://localhost:9227/current-workspace-app");
Context ctx = new InitialContext( props);
When I try this,it is complaining that it cannot instantiate EvermindConnectionFactory.
I am not sure which factory class we have to use here.i tried all the Factory class in that package.but didn't worked.
next I used,
b)
tried to use default context in session bean to get MDB factory
String TOPIC_NAME="jms/theTopic";
String TOPIC_CONNECTION_FACTORY="jms/theTopicConnectionFactory";
TopicConnectionFactory connectionFactory = (TopicConnectionFactory)new InitialContext().lookup("java:comp/env/" + TOPIC_CONNECTION_FACTORY);
this gives
04/06/13 23:46:09 javax.naming.NameNotFoundException: jms/theTopicConnectionFactory not found in MySession
04/06/13 23:46:09      at com.oracle.naming.J2EEContext.getSubContext(J2EEContext.java:93)
this may be because JMS server runs on different port than other EJBs and have different namespaces.
Can any body give info,how we can make use of Message Driven bean from a Session Bean or from a JSP page or from a simple class inside JDeveloper.
Thanks in advance.
gopal

Hi,
There are some hints in this forum for how to do this.
I put together and make it working.
This example creates an MD Bean and have a simple message and a client class send messages to that bean.
Steps
=====
1)
a)in {JDev Home}\jdev\system9.0.5.2.1618\oc4j-config\jms.xml
     <topic name="Demo Topic" location="jms/demoTopic">
          <description>A dummy topic</description>
     </topic>
     <topic-connection-factory name="Demo Topic Connection Factory" location="jms/theTopicConnectionFactory">
          <description>A dummy topic connection factory</description>
     </topic-connection-factory>
b) in current project in orion-ejb-jar.xml
go to orion-ejb-jar properties and add these values there to MDB node
destination-location=jms/demoTopic
connection-factory-location=jms/theTopicConnectionFactory
2) create a dummy session bean and a dummy client for that session bean
This sets default configuration for the client application we write
doing so we do not need to set properties to get Initial context.It makes use of
{JDev Home}\jdev\system9.0.5.2.1618\oc4j-config\.client\jndi.properties
We can directly get Contexxt ctx = new InitialContext();
3) Create MDB and put this sample code in method
onMessage()
TextMessage tm = (TextMessage) msg;
try {
String text = tm.getText();
System.err.println("Received new message : " + text);
catch(JMSException e) {
e.printStackTrace();
4) go to properties for the MDB and set Destination to Topic
5) write Client code
Context ctx =new InitialContext();
// 1: Lookup ConnectionFactory via JNDI
TopicConnectionFactory factory =
(TopicConnectionFactory) ctx.lookup("jms/theTopicConnectionFactory");
// 2: Use ConnectionFactory to create JMS connection
TopicConnection connection = factory.createTopicConnection();
// 3: Use Connection to create session
TopicSession session = connection.createTopicSession( false, Session.AUTO_ACKNOWLEDGE);
// 4: Lookup Desintation (topic) via JNDI
Topic topic = (Topic) ctx.lookup("jms/demoTopic");
// 5: Create a Message Producer
TopicPublisher publisher = session.createPublisher(topic);
// 6: Create a text message, and publish it
TextMessage msg = session.createTextMessage();
msg.setText("This is a test message from My Test Client!!! .");
publisher.publish(msg);
6) Run the server and run the client

How to use the same bean from Jsp and Servlet

I want to use the same bean instance from both the servlet and jsp.
for eg. if a create a bean using the jsp:useBean in servlet and if a modify some values, that values should be reflected while i access the same bean from the servlet. But instead of that the servlet is creating a new instance of the bean.
is it possible?
Thanks in advance

Hi,
When you call jsp:useBean you inform a scope (session, request, page...)
This means the bean instance will be stored in that scope.
So, if the informed scope is session, then, in the servlet you could get the bean instance back from the session, this way:
HttpSession session = request.getSession();
Bean b = (Bean) session.getAttribute("bean_id");
Regards,
Filipe Fedalto

Stepping into Java Beans from JSP

I am trying to figure out how to step into the Java Source code for my beans that are used in my JSP pages. I need to be able to debug them by stepping into them, using break points, etc.
I have Nitro installed and a sample JSP page with the import to my test Java Bean class. What I did was create two projects in my work space. One as a Web project application and one as a Java project. I referenced and opened both projects. Everything compiles fine and the syntax is correct.
The problem is I can not make the link for importing the class.
I get this error: Class com.BrianTest.MyBean not found in import com.BrianTest.MyBean
Anyone got a clue or a good example? I did try and add the class path and I tried to put it in a Jar file and attach the source to the Jar, but same problem.
Thanks :?

Stepping into jsp:useBean is not possible, but you can step-into jsp getter & setter tag.
Since you are using java bean from a dependent project you need to configure your server with DevLoader.
And currently only Tomcat server can be configured with Sysdeo Devloader to handle this situation
Download Sysdeo DevLoader for Tomcat from http://www.sysdeo.com/eclipse/tomcatPlugin.html
NOTE: If the project is self sufficient and not dependent on other projects/locations for classess/libraries then NitroX picks up all the libraries & classes present within default WEB-INF/lib & WEB-INF/classes respectively. And in this case you need not modify server configuration.
Sysdeo DevLoader is to allow your web project to use libraries/classes from dependent projects. All you need to do is extract DevLoader.zip present within tomcatPluginV3.zip inside your Tomcat/server/classes folder.
For more information about DevLoader please refer to http://www.sysdeo.com/eclipse/readmeDevLoader.html
This will solve your problem and you should be able to run/debug your application. And most important make sure you have the correct NitroX build that supports Sysdeo DevLoader, refer http://www.m7.com/whatsnew.htm document against your build id (Help > About NitroX > NitroX Icon)

Calling Java Bean From JSP

<%@ page contentType="text/html;charset=windows-1252" errorPage = "error.jsp"%>
<%@ page import="java.sql.*,java.io.*,javax.sql.*, mypackage1.*"%>
<html>
<head>
    <meta http-equiv="Content-Type" content="text/html; charset=windows-1252">
    <title>Process</title>
</head>
<body>
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      <P align="center"> </P>
      <P align="center"> </P>
      <P align="center"> </P>
      <P align="center"> </P>
      <P align="center">
   <%
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        Connection con;
        try
          String sql;
          sql = request.getParameter("query");
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          session=request.getSession(true);
          String name = (String)session.getAttribute("theID");
          String password = (String)session.getAttribute("paswd");
          String driver="oracle.jdbc.OracleDriver";
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     %>
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</body>
</html>Above is my JSP file, which is calling a Java bean class called Table. The thing is that Its not returning any Table from the Table Class. I dont know how to use Java bean as I m new to it. Following is my Table Class. So If anyone can plz help me then it would be great. I m suffering from 2 days just because of this class and JSP.
package mypackage1;
import java.io.Serializable;
import java.sql.ResultSet;
import java.sql.ResultSetMetaData;
public class Table implements Serializable
private ResultSet rs;
public Table()
public void setTable(ResultSet result)
    rs = result;
public String getTable()
         String output=null;
         try
                ResultSetMetaData metadata;
                metadata=rs.getMetaData();
     // find the number of fields in customer table
                int col=metadata.getColumnCount();
                output = "<table/><tr/>";
                for(int i=1;i<=col;i++)
                    output+="<td/><b/>"+metadata.getColumnName(i)+"</b/></td/>";
                output += "</tr/>";
                while (rs.next())
                       output="<tr/>";
                       for(int i=1;i<=col;i++)
                         output+="<td/>"+rs.getString(i)+"</td/>";
                       output += "</tr/></table/>";
                }//End of While
           catch(Exception e)
    return output;
}//End of Table method
}//End of Class

First reaction: yuck.
This is not something you should be using a bean for.
Beans are meant for storing data, not for generating HTML from.
I don't really like queries on a JSP page either, but thats a different story again.
I would recommend you use JSTL for this.
1 - it provides a c:forEach tag for looping
2 - it provides sql tags for doing queries in a database
IF you are going to do database queries from a JSP page, I absolutely recommend you use the JSTL tags.
(end rant)
Your problem is probably caused by the fact that in your bean you have the following
try{
// code here
catch (Exception e){
// completely ignore exception and carry on as if nothing bad happened.
// what you should be doing is something like:
System.out.println("Error occurred " + e.getMessage());
e.printStackTrace();
return e.getMessage();
}Cheers,
evnafets

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I am working on trying to send different colours into a MySQL database field from a JSP page.
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What is the best way to write JSP code for this?
thanks,
Alasdair

Double-posted:
http://forum.java.sun.com/thread.jspa?threadID=598637

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Can anyone help me in this?
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Please read the JavaMail FAQ.
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hi,
I tried to my best to call java beans from JSP page but it generate error that "unable to load class....", please help me that in which directory jsp file and bean *.class file reside, currently my setting are as follows.
Note: I am using tomcat server and my jsp and servlet files are running seccessfuly, there is any special change in classpath for java beans? if any please tell
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Pleae help me for the above problem.
Mubashar ([email protected])

According to J2EE standards:
The web appl directory structure should be:
WebAppRootDirectory
|
|---html, jsp, images etc
|
|---WEB-INF---
|---classes--
|---lib
|
|
1) Make sure WEB-INF is in capital letters
2) Place all ur beans in classes dir or sub-directory in
classes
3) In Tomcat place WebAppRootDirectory in webapps
directory
[email protected]

How to call java bean from jsp

hi
How to call a java bean from jsp page..
Is any other way to call javabean from jsp page apart from this sample code...
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thnx in advance

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2nd in your jsp page:
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Micheal

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Contact your network administrator about this, he should be able to help you.
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Sending Hashtable[] to Bean from a JSP

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