Java inside jsp???

i've written ODBC connection with java standalone code. Can i use that java code inside jsp? Instead of re-writting the whole program in jsp, is there anyother way???

certainly you can.
However doing database access from a JSP is considered bad style.
Better would be to bundle the database connection code into a bean, and use it from both your application and your JSP.
Also, be aware of the differences in classpath to locate your JDBC driver. For a JSP the classpath is basically the web-inf/lib directory. So as long as you put your JDBC driver there, you should be fine.

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How to use VPD in Java/Struts JSP portlet with SSO

DB = 10.1.0 (Standard Edition)
Portal = 9.0.4.1
10gAS = 9.4.0.1 (EE)
I am in the beginning stages of developing some portlets that will be Java/Struts JSP based. We use SSO and have implemented some VPD security in our DB by creating some views that use SYS_CONTEXT('USERENV','CURRENT_USERID').
These Java portlets connect to the DB using a defined JDBC connection for the OC4J container they are deployed in. The problem I'm having is that the call to SYS_CONTEXT is returning the user of the JDBC connection and not the SSO user. So far I have been unable to find any documentation that will point me in the right direction to get this configured properly.
Deployment and configuration are as follows. Deploy war file to custom container on app server. In the configuration of the OC4J contain the app used the containers default JDBC connection using the oracle.jdbc.pool.OracleDataSource class. Max and Min open connections are blank.
In the portal configuration under Navigator - Providers tab we defined a new Registered Provider. In the Connections tab for the provider we Specify the URL Http://hpsrv02.simsol.com:7777/discovery-portlets/providers. Under "Specify how the user's identity will be set by the Portal..." the "The user has the same identity in the Web providers application as in the Single Sign-On identity" is selected. Under "User/Session Information" User is selected and Login Frequency is set to "Once per user session". Then we created a new portal page and created a new portlet with the new provider.
Just an FYI I do have Discoverer working with VPD and any report portlet, dynamic page portlet and any other type of portlet I created all work correctly with VPD it is just the java/struts one that is not working.
So does any one have any insight into what configuration steps I have missed?
Any help is much appreciated,
Ed Klinger

Ed,
Your java code must get the SSO username (it's just a HTTP header variable) :
ie: code sample...
Enumeration e = request.getHeaderNames();
while (e.hasMoreElements()) {
String name = (String)e.nextElement();
String value = request.getHeader(name);
out.println("<br> "+name + " = " + value);
if (name.toUpperCase().trim().equals("OSSO-USER-DN")){
dn_user=value;
out.println("<br>******** USER DN = "+dn_user);
Then, the SSO username can be used in the VPD policy.
Note that there is a difference between the sso username and the database username . SSO username is not known by database (CURRENT_USERID will return a database username)
Discoverer worked OK in your case with the SYS_CONTEXT (.. CURRENT_USERID) because authentication is made by database user, probably.

How to execute unix command in java or jsp

have a peace day,
please send some sample code for
"execute the unix command in java or jsp"
thank you
regards
rex

i execute this coding
its compiling. while running i get the error " java.io.IOException: CreateProcess: \ls-l error=2 "
import java.io.*;
import java.util.*;
public class Test
   public static void main(String[] args) throws Exception
     try
          String[] cmd = {"/ls-l"};
Runtime.getRuntime().exec(cmd);
     catch (Exception e)
           System.out.println(e);
}what can i do for that
thank u

Websites for downloading code-templates (java and jsp) existing ?

Hi,
I'm searching for a website, offering code examples or templates (in java and jsp) for downloading.
For example: A code for creating a new xml-file, login-procedure or sending an e-mail with a java-program, I can customize.
I know, for asp.net such websites for downloading code-templates are existing (e.g. a German website: http://www.aspheute.com).
So I think for java and jsp those sites will also be existing�
Does anyone know some links ?
bye
Chris

Yes, with google - I'll surely find some matches, but I'm looking for links and websites which will be provided by personal experiences.
With google - you won't find any personal experiences...
bye
Chris

Servlet with no dynamic code inside jsp pages

Hello,
          I saw that a servlet is created even if there is no dynamic code inside jsp pages (scriplets & tags). Is it possible to avoid it on bea side ? (I am using portal 8).
          By the way, do you know if is it possible to define apache in order to avoid to send to bea the jsp which have no dynamic code inside ?
          thank you !

JSP's always generate a servlet on all web containers. Apache/Tomcat is no
          different. If you have static content, make it an HTML page.
          Bill
          "hournon jc" <[email protected]> wrote in message
          news:22255787.1103297053148.JavaMail.root@jserv5...
          > Hello,
          >
          > I saw that a servlet is created even if there is no dynamic code inside
          jsp pages (scriplets & tags). Is it possible to avoid it on bea side ? (I am
          using portal 8).
          >
          > By the way, do you know if is it possible to define apache in order to
          avoid to send to bea the jsp which have no dynamic code inside ?
          >
          > thank you !

Java inside javascript

Hi
i am getting alert messages to be displayed in the GUI from the properties file.
can anyone tell me how can i use java inside javascript..?
so that i can use ResourceBundle file in javascript.
Regards
Sonia

Do you know how to retrieve the text you want from the properties file? If so then all you have to do is add:
<script type="text/javascript">
alert('<%=variablename%>');
</script>
to your page, where you replace variablename with the name of the String you want alerted.
If you don't know how to retrieve what you need from the properties file, maybe you should ask that question.

Java or JSP editor ?

please suggest me a good Java and JSP editor, which can be used to create plain java classes (java beans or servlet) and JSP pages.
is NetBeans or Eclipse will fulfill my requirement ?or what else ?

please suggest me a good Java and JSP editor, which
can be used to create plain java classes (java beans
or servlet) and JSP pages.
Try a new one every week for the next several years and decide for yourself which you like best.
There's enough of them to keep you occupied as our resident editor tester for the rest of your life even if no new ones were released every day or so.
is NetBeans or Eclipse will fulfill my requirement
?or what else ?doubt have abt ur rekwaierements fur editer. plz respond asap.

Learning java before jsp?

Do I need to know Java before learning JSP?
Also, I have a laptop that I am using at home and would like to start learning Java and JSP. Will Tomcat work on my laptop? Can I launch it from my desktop?

It is not absolutely necessary to learn java before you learn jsp, but you must at least have programming experience. But if you want to do better, then you need to learn java.
tomcat should run on your laptop.

What can Java inside cell phone do?

hello,
i would like to know what can Java inside my cell phone do? can it:
1) run in a background
2) initiate a phone call
3) send an sms or receive an sms
4) can it control bluetooth and to what extend
what are things that java cannot do?
thank you very much!

Hi,
J2ME apps run in sandbox mode. Things can be done using various APIs. To
answer your specific questions:
1) depends on the host device implementation, this is not defined by JCP
2) AFAIK not (due to security). There might be an API however that allows you to
do this on certain devices.
3) Yeah, no problem. See http://java.sun.com/products/wma/
4) Depends on APIs provided by device manufacturer. JCP defined http://www.jcp.org/en/jsr/detail?id=82.
The things J2ME can not do are mostly features like accessing your phone
book, use built-in camera (unless APIs are provided), floating point math
operations, ...
Reading J2ME related JSRs from http://www.jcp.org/ will give you the overview
of what's defined and can be expected from all compliant phones. Other
features may or may not be implemented.
Hope this helps,
Peter

HELP NEED FOR INVOKING THE JAVA CODE INSIDE JSP

Hello,
any one knows how to Write a java code inside the .jsp files... please if any one knows it please ....help me .....

hi .
Use scriptlets , for example :
<html>
<%
int x;
for(x=1;x<=5;x++)
out.println(x);
%>
</html>

Calling Java code inside JSP page and sending toString on object to Servlet

Hi.
I am trying to setup a way to make testing my application easier. Using a web-based method will work best. Here is what I am trying to accomplish:
- Have a web page that will prompt the user to enter data, fill in text fields, make choices, etc. When done, they press the Submit button. I don't need to keep info between sessions. Just open browser, execute, view results, close browser, repeat.
- I then want to take this data and use some Java Classes I have to create a Java object.
- I then want to send the toString() results of this Java object to a known Java servlet. The result of the servlet's actions should be displayed as a response on the screen.
This is what I currently have (Ignore the
's - I don't know why they are showing up - its not important):
Web page:
<html>
<head><title>TestGroup</title></head>
<body>
<form name=f method=post action=http://localhost:100/Servlet>
Name: <br>
Group: <input name=group type=text><br>
<br>
<input type=submit value=Submit>
<input type=reset value=Reset>
</form>
</body>
</html>The Java code in the JSP (where to put it?):
<%
Group g = new Group();
g.setGroupName(request.getParameter("group"));
String output = g.toString(); // I want this to go to the Servlet.
%>But, now I am stuck as to how to piece these together. I have some JSP experience, but not quite like this.
As I said, when the user presses the Submit button, I want to perform the Java code above, and have the results of the toString method sent to the Servlet, plus clear all other parameters (so they are not sent to the servlet).
Does anyone have any advice/comments? I am open to alternative designs too, this is just the simplest one I could think of. If another JSP page is needed, that's fine too.
Thanks.

Hi.
I am trying to setup a way to make testing my application easier. Using a web-based method will work best. Here is what I am trying to accomplish:
- Have a web page that will prompt the user to enter data, fill in text fields, make choices, etc. When done, they press the Submit button. I don't need to keep info between sessions. Just open browser, execute, view results, close browser, repeat.
- I then want to take this data and use some Java Classes I have to create a Java object.
- I then want to send the toString() results of this Java object to a known Java servlet. The result of the servlet's actions should be displayed as a response on the screen.
This is what I currently have (Ignore the
's - I don't know why they are showing up - its not important):
Web page:
<html>
<head><title>TestGroup</title></head>
<body>
<form name=f method=post action=http://localhost:100/Servlet>
Name: <br>
Group: <input name=group type=text><br>
<br>
<input type=submit value=Submit>
<input type=reset value=Reset>
</form>
</body>
</html>The Java code in the JSP (where to put it?):
<%
Group g = new Group();
g.setGroupName(request.getParameter("group"));
String output = g.toString(); // I want this to go to the Servlet.
%>But, now I am stuck as to how to piece these together. I have some JSP experience, but not quite like this.
As I said, when the user presses the Submit button, I want to perform the Java code above, and have the results of the toString method sent to the Servlet, plus clear all other parameters (so they are not sent to the servlet).
Does anyone have any advice/comments? I am open to alternative designs too, this is just the simplest one I could think of. If another JSP page is needed, that's fine too.
Thanks.

Opening a new Broswer Window using Java code inside JSP

Dear Fellow Java Developers:
I have written a JSP that presents information about a particular item. I want to give an option to the customer to click on the picture of the item to get a larger view. However, I don't want the browser window that opens to have the usual buttons and menubar at the top like a typical browser window, I just want it to be a window with a large image of the item. A good example of this is on the following website:
http://www.eddiebauer.com/eb/product.asp?product_id=24701&nv=2|21472|9|32&lview=&cm_cg=&tid=&c=&sc=&lp=w1i005
Click on the picture of the shirt on this page and you'll see what I am talking about. How is this accomplished using a Java scriplet? I have checked the source code for the above site, as well as others, and they all achieve this using JavaScript. Is there a way of accomplishing this using pure Java and/or HTML?
Just wondering.
Thanks in advance to everyone that replies.
Sincerely;
Fayyaz

you seem to miss the client/server side setup. Your java is executing on the SERVER and it processes a request which in turn sends pure HTML and javascript to the client. What you want to do has to be done on the CLIENT, so JavaScript is the only option.

Ideas pls for a small application on java and jsp?

hi ,
I would like to create an application which for resume. I would like to codify the java code . The java code should be able to autogenerate jsp file's since the output of the resume would be on an jsp page. To add it simply a wizard for dynamic resume creation using java swings and jsp. Code for jsp should be autogenerated please note it.
Ideas please!
Thanks in advance

I'd like to add more information to Patreck's suggestion.
JSP pages are wonderful if you need the web server to perform some actions before sending you the final web page.
Here, you don't need the web server to do anything because your Swing application can do it for you. As Patreck implies, Swing can make a connection to the database, retrieve any information you want, perform whatever logic you need, and write the output to an HTML file.
To give you an example, you can use Internet Explorer to view a basic web page on your hard disk. You can also use Microsoft Word to view the same basic web page. They both do the same task and there is no need to force IE to use its Word plug-in in order to view the web page.
JSPs are not necessary because Swing will do all of the work for you. You only need JSPs if you want people to use your program through a web browser because they can't do Swing inside a web browser. You should only use one or the other, not both. Understand now?
If you really really must generate JSP code from a Swing application, then just write out the JSP stuff in the file. For example...
public void createWebPage( Printwriter pw, String myName ) {
   pw.println( "<% String myJSPName = \"" + myName + "\" %>" );
   pw.println( "<HTML>");
   pw.println( "<HEAD>");
   pw.println( "<TITLE>My Resume</TITLE>" );
   pw.println( "</HEAD>");
   pw.println( "<BODY>" );
   pw.println( "<H1>My name is " + myName + " and my JSP name is <%= myJSPName %></H1>" );
   pw.println( "</BODY>" );
   pw.println( "</HTML>" );
}As you can see, it's pointless to embed JSP when you can do all the programming within Swing first and just write out the correct response.

Deferred expressions inside JSP tags

Hello!
I want to include custom JSP 2.0 tag into page.
Something like

<jsp:root version="2.0"
    xmlns:f="http://java.sun.com/jsf/core"
    xmlns:jsp="http://java.sun.com/JSP/Page"
    xmlns:pk="urn:jsptagdir:/WEB-INF/tags">
    <jsp:directive.page language="java"
        contentType="text/html; charset=ISO-8859-1" pageEncoding="ISO-8859-1" />
<f:view>
<pk:custTag bean="${beanInstance}"/>
</f:view>
</jsp:root>inside that tag I want to access my bean in JSF 1.2 way:

<jsp:root version="2.0" xmlns:h="http://java.sun.com/jsf/html">
<jsp:directive.tag body-content="empty" language="java"
        pageEncoding="ISO-8859-1" />
<jsp:directive.attribute name="bean" required="true" type="com.my.Bean"/>
Runtime way:
${bean}
${bean.prop}
Deferred way:
<h:outputText value="#{bean}"/>
<h:inputText value="#{bean.prop}"/>
</jsp:root>So ${} renders as expected, but <h:outputText> renders nothing as #{} evaluates to null. What should I do to make outputText and inputText work, if that's possible at all?
I use Tomcat 6.0.2 and JSF-RI 1.2_03.
Thanks,
Alexey

Oh, I see now.
But is there a way to trick JSF by explicitly putting bean into request scope? Something, like Tomahawk's aliasBean?
Actually, I did try to implement it. The following code was supposed to create a variable in EL-context:
ValueExpression     expr = _value instanceof ValueExpression
                   ? (ValueExpression)_value
                   : facesContext.getApplication().getExpressionFactory().createValueExpression(_value, Object.class);
ELContext   ctxt = facesContext.getELContext();
VariableMapper varMap = ctxt.getVariableMapper();
if ( varMap == null ) {
    ((ELContextImpl)ctxt).setVariableMapper( new VariableMapperImpl() );
    varMap = ctxt.getVariableMapper();
if ( varMap != null ) {
    varMap.setVariable(_alias, expr);
    _active = true;
    log.fine("makeAlias: " + _alias + " = " + expr.getExpressionString());
} else {
    log.warning("makeAlias: " + _alias + " = " + expr.getExpressionString() + " failed");
}But resolving #{...} still returned null.

HtML inside JSP Tag

How much HTML can be inside a JSP Tag? I created a tag which set few variables. Now on the JSP page, if the variable A is not null, then only display value and show a link next to it.
So is it OK, if I take the link html (href code) and concatenate with the vale of A
Thanks in advance

<ed:TableIterator resultId="calist">
<tr class="altrow">
    <td class="center" style="vertical-align:top;">
      <input type="checkbox" onchange="ca.value='1';" class="cb" name="cadel" value="<ed:getColumn column="idx"/>"/>
      <input type="hidden" name="cadate" value="<ed:getColumn column="date"/>"/>
    </td>
    <td style="vertical-align:top;">
      <input type="text" onchange="ca.value='1';" class="text" name="caoms" value="<ed:getColumn column="title"/>"/>
    </td>
    <td>
      <textarea class="text" onchange="ca.value='1';" name="camemo" cols="40" rows="4"><ed:getColumn column="memo"/></textarea>
    </td>
</tr>
</ed:TableIterator>Loads :)
This is a small sample, building the rows of a table with 3 columns (a checkbox, an inputfield and a textarea) for each row.
I've built larger structures where I nest the same tags to create select controls in each row.
I wouldn't actually create HTML inside the java class for the tag, as that violates the separation of code and presentation (that's not to say I haven't done it, but I've learned better since <GRIN> and now try to avoid it where possible and minimise it where not).

Java inside jsp???

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