Weblogic 6.0 doesn't update my JSP-pages without a restart!!?!

I had the same problem with Weblogic 6.0sp1 Windows
Here's what I did:
1) Shutdown Weblogic
2) Delete the temporary folder and files under:
C:\bea\wlserver6.0sp1\config\mydomain\applications\.wl_temp_do_not_delete
3) Keep only 2 web applications under the applications directory:
C:\bea\wlserver6.0sp1\config\mydomain\applications\
DefaultWebApp_myserver
and myApplication
4) Restart Weblogic
Now the updates to the Jsps of myApplication are refreshed without restarting Weblogic !

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Forward to JSP page without using Navigation Model

How can I forward to a JSP page without using the Navigation Model?

It's done in the cardemo example in
ImageMapEventHandler.processAction() Is there a reason
for it there?Ah ... that makes sense.
That code in CarDemo was written before there was such a thing as a NavigationHandler, and we didn't have time to update it to the new approach before the EA4 release. That'll be changed before the next one. In the mean time, I'd recommend that you use the navigation rules mechanism where it works for you, because it encourages good separation of business logic and presentation logic that will lead to more maintainable applications.
Craig

Images are not updated in jsp page

Hi experts,
I have developed a website for show events and display images of the event, when the user saves the title of the event and event content these things are go to database and at the same time i am creating a directory on the server in which user can upload manually(as user's demand).
but after pasting the images in the directory when i test for the image page, the content and title are shown(content and title are coming from database) but images are not, images are shown after minutes. I have checked that image's path are right. And when i type same path on the address box of my browser, it shows...
The requested resource (/xxxxn/image/NewsImg/xxxxxx) is not available.But after minutes, like 30 to 40 or after i restart my system, it is showning me.
I have disabled the page cache of my jsp pages.. but problem remain. i am using tomcat 6.0.26 for testing.
Please guide me how can i resolve this issue.
Thanks
Shams

Ha ha ha,
I have done it myself...
what i am doing is to, generate a random number by using random class and attach it with image's path like "url rewriting" technique. Like this:
Random ran = new Random();
String imgPath = "./img/img_file_name?" +ran.nextInt(99999);and pass this to the "img" element of html.
I think that this trick forces browser to recollect the data from server and not to use cached data.
But my question with experts is that... I have used on jsp page these code:
response.setHeader( "Pragma", "no-cache" );
response.setHeader( "Cache-Control", "no-cache" );
response.setDateHeader( "Expires", 0 );to tell browser not to catch my page, then why browser is caching my page??
Thanks
Shams

Can we call a javascript fun through jsp page without any event

Hi ,
I am new to jsp,javascript and i have a little question.
If i make a function in a js file and want to call it from a jsp file without any event ,ie can i write some thing like <%abc()%> in ths jsp page ,which call the function from another .js file.
I suppose that it can be done as gmail page reloads it self after some time and for http mostly we use pull ie request from the client side ,so i think that they must be doing something like timer expiry and reload themselves.
please help me with the solution.
Thanks & Regards
Saurabh

sorta....
The JS runs in the client, not on the server, so you would just be writing JS code as HTML... If your page is like this and the myscript.js file defines 2 functions (function1, function2), you can call them on page load in either of these ways. I'm not sure offhand which would get called first, but the scripts called inline in the page would be called in the order they are defined in the page. But that is all HTML, it has nothing to do with JSP.
<head>
<script language="JavaScript" type="text/javascript" src="myscript.js" />
</head>
<body onload="function1();">
<script language="JavaScript" type="text/javascript">
function2();
</script>
</body>

Weblogic 12c console doesn't update with datasources defined

Hi Guys,
I've observed this behaviour.. which seems to me as a bug somewhere.. Here is what happens..
1. I define a datasource
2. Then I try to create JDBCStore for JMS messages.. I don't see my defined datasource in step-1 in the dropdown list..
3. Worst part is, even if I define a new datasource from the create JDBCStore screen, I don't get to see it back in the dropdown list..
Could someone please try it?
Thanks,
Prasad

From the WLS documentation:
You cannot configure a JDBC store to use a JDBC data source that is configured to support global (XA) transactions. The JDBC store must use a JDBC data source that uses a non-XA JDBC driver. In addition, you cannot enable Logging Last Resource or Emulate Two-Phase Commit in the data source. This limitation does not remove the XA capabilities of layered subsystems that use JDBC stores. For example, WebLogic JMS is fully XA-capable regardless of whether it uses a file store or any JDBC store.
Because the JDBC store implements the XAResource interface, it acts as it’s own resource manager and handles the transactions above the JDBC driver level. That is, the store itself implements the XAResource and handles the transactions without depending on the database (even when the messages are stored in the database).
This means that whenever you are using a JDBC store and a database (even if it is the same database where the JMS messages are stored), then it is two-phase commit transaction.
So only non-XA datasources will show up in the console list for JMS JDBC stores and you cannot use that same datasource for an EJB global transaction.
This has always been the case.

Does out.flush() work in a JSP page without buffering?

          All:
          I am using WLS 4.51 and have found that it is not possible to flush the contents
          of the ServletOutputStream. I have seen this behavior in JSPs and Servlets.
          What I am trying to achieve is a simple status message that is displayed on the
          client for a long running transaction.
          TIA
          Brian


Hi.
You can use JSTL perfectly in ADF. I don't share the opinion of Oracle not recommends... there are a lot of official pages saying how to use JSTL in ADF.
<af:outputText value="#{fn:length(yourList)}"/>Yannick is saying that you can't mix lifecycles. Take care using $ or # operators :).
For example if you are using a JSTL c:forEach. Next code is going to crash:
<c:forEach var="..." value="${list}">
   <af:outputText value="#{list.item}"/>
</c:forEach>Because # is evaluated in prepareModel phase and $ while rendering.
I hope this help you.

Refreshing the Content on a JSP page

Hi,
I am developing an application where a JSP page (index.jsp) is displaying some data from the database. There is an HTML form on the JSP page too. When the user fills in the data and clicks submit, he is redirected to a servlet (via form's action)... the servlet inserts the data into the database and the user is redirected back [Response.sendRedirect("index.jsp")] to the original JSP page.
The problem I am facing here is that when the user is back on the original index.jsp page, the newly inserted data is not being displayed on the page. The user MUST refresh the page manually in order to view the new data.
How can I display the new data automatically, without the user refreshing the page?
PS: I have already tried <META HTTP-EQUIV="CACHE-CONTROL" CONTENT="NO-CACHE">... but it is not working...
Any help will be greatly appreciated.
Thanks.

Thanks for info... Have you got any idea of dynamic updation of JSP page? I have been debugging the problem since 2 days and I have tried various methods but nothing seem to help. I have tried to use meta http-equiv and javascript as well for the refresh but its of no use...
My business logic is pretty simple...
index.jsp
=======
[Connect to database]
[Fetch & Display data]
[HTML Form] ---> submit to Servlet 'test'
test.java (Servlet)
======
[Fetch the request parameters sent by JSP page]
[Insert the record into database]
[response.sendRedirect("index.jsp");]

Including JavaScript into a JSP Page

Hi,
How do i include a piece of JavaScript <SCRIPT> stuff into a JSP Page?
Right now i have an HTML Page that includes some <SCRIPT> code. Now many other HTML files use this piece of <SCRIPT> stuff. How do i remove it , put it in one place(I mean where to put it and what would that file be called) and in a JSP page call this <SCRIPT> code?
Please help . i'm pretty new to JSP and JavaScript.
Thanks in Advance.
Phani
/**** CODE
<SCRIPT language=javascript>

</SCRIPT>

Ok, first let us make clear the demarcation between java and javascript.
Java runs on the server, and produces an HTML page which is sent to the client.
That HTML page may contain javascript code on it to run on the client side.
As the page is loaded, javascript may be compiled/run on the client.
So you have some javascript code which you want to include on every page as template text?
I would do this in JSP by using the include directive to add that bit of template text to every single JSP page.
ie
header.jspf
<SCRIPT language=javascript>

</SCRIPT>
<noscript>
// stuff here for when the browser does not support javascript
</noscript>And then in every jsp page
<%@ page include="header.jspf" %>
// rest of the JSP pageThe file "header.jspf" will be included with every jsp page served, and you only need to update that page in one place.
If you have a JSP2.0 container you can define a jsp prelude which will be the same as having the <%@ page include="header.jspf" %> on every page.
You do this in the web.xml file:
Something like this:
<jsp-property-group>
     <url-pattern>*.jsp</url-pattern>
     <include-prelude>/WEB-INF/jspf/prelude1.jspf</include-prelude>
</jsp-property-group>The specified file will be loaded into every JSP page without the JSP page having to define the import itself.
Hope this helps,
evnafets

How the hell does a person share session data between JSP page and a Servle

1. How the hell does one share session data between a servlet and a JSP page without using a bean but rather using a normal string variable.
2. When using session scope to access a bean the application complains about not finding the bean on the specified scope, however when I use an application scope the save the same bean, the application does find it.
Please help!!!!!!!
SERVLET:
HttpSession session = request.getSession(true);
ServletContext servletContext = session.getServletContext();
customerID = result.getString("CustomerID");
userName = result.getString("UserName");
session.setAttribute("UserName",userName);
session.setAttribute("CustomerID",customerID);
System.out.println("Customer UserName = " + session.getAttribute("UserName"));
response.sendRedirect("/economics/subscriptions/default.jsp");
JSP PAGE:
<?xml version="1.0" encoding="UTF-8"?>
<jsp:root xmlns:jsp=http://java.sun.com/JSP/Page mlns:c="http://java.sun.com/jsp/jstl/core" xmlns:sql="http://java.sun.com/jsp/jstl/sql" version="2.0">
<jsp:directive.page isThreadSafe="true" session="true" contentType="text/xml"/><jsp:output omit-xml-declaration="false"/><jsp:scriptlet>response.addHeader("x-xslt-nocache", "true");</jsp:scriptlet><pml>
<page type="web" search="y">
     <pageName>Commercial Banking</pageName>
     <jsp:directive.include file="/economics/header.inc"/>
     <jsp:directive.include file="/login.inc"/>
     <jsp:directive.include file="/economics/leftMenu.inc"/>
     
     <content>
     <searchSum>Commercial - Main Content</searchSum>
     Value = <c:out value="${request.session.getAttribute("UserName")}"/>
     </content>
     <jsp:directive.include file="/economics/rightNav.inc"/>
     <jsp:directive.include file="/footer.inc"/>
</page></pml></jsp:root>

For a start, just "session" instead of "request.session" would work better. But why did you post this here and not in the JSP forum? Doesn't seem to have anything to do with Java programming.

Deploy jsp page on default web app

Hi,
I have migrated from oracle application server 10g to oracle weblogic server 11g. howerver, I have a jsp page to be displayed as a welcome page to our application. In version 10g we used to deploy this jsp on $ORACLE_HOME/j2ee/home/default-web-app folder. but now after migration I'm unable to display this JSP page although this directory exists in version 11g. does anyone know what's the web context root for this folder?also in version 10g there was a folder called $ORACLE_HOME/j2ee/home/applib. I cannot find this folder anymore.
thanks

You can follow the below link to make your Application as a Default-Web-App in WebLogic 11g ...
http://jaysensharma.wordpress.com/2010/04/06/configuring-a-default-application-in-weblogic/
Please specify <welcome-file> Tag in *"web.xml"* as well...
<welcome-file-list>
<welcome-file>YourWelcomePage.jsp</welcome-file>
</welcome-file-list>

JSP page and the pageContext.forward() method

I am running JSP pages on a coldfusion site so that a CF page (i.e. login.cfm) hosts my login.jsp page. I want to reload the JSP page without having to reload the cfm page each time. pageContext.forward() does do this, however, it only forwards on to a new page. I want to be able to reload a page with the new URL parameters (e.g. when there is an error, login.jsp will reload and give the user an error). What is a method to reload the page with the proper URL variables?
The following code does not work:
pageContext.forward("login.jsp?operation=user_edit&jsessionid=" + f_URLEncode(session.getId()));
Because it runs from the login.jsp page (the forward command only goes to a new page)

Just to clarify...
I log into your site. The first page shown is the CF page. The CF page automatically redirects me to the JSP page. Then what, exactly?
Does the login page automatically determine my URL, attempt to validate it, and if it doesn't work, it reloads the page?
The reason I ask is because there is a difference between the resulting HTML page and the JSP class file that generates that HTML page. Generally speaking, most web servers, particularly Tomcat, do not recompile the JSP class file, they just simply pass the parameters to the existing class file, and a new HTML page is generated.
So technically speaking, every time you visit the login.jsp page, you will get a brand new HTML page. The contents of that page are the same because you presumably pass the same parameters to the class which hasn't changed. But in other words, no, you can't forward to an "old" page that was previously generated by the class - each time the web server calls that class, it creates a "new" page.
Or are you saying that every time you attempt to forward to the login.jsp page, the system erronously calls the CF page instead?

How to include a .class file in a jsp page

hi everyone,
i know the syntax as:
<%@ include file = "filename.class" %>
then at run time the server could not find the class file
if i use,
<%@ page import = "FileName.class" %>
then also the same problem persists
& if i use
<jsp:include page = "Relative address"/>
the problem still remains as it is...
please help me out...i am working on developing an EJB application in which client interacts with server's Stateful session bean through a jsp page...it is necessary for me to include the home interface class file in my jsp page.
P.S. do not suggest me to include the class file in a package & then use
<%@ page import = "packageName.ClassFileName" %>
i
Edited by: Ankit_JIITU on 6 Jul, 2008 1:55 AM

Ankit_JIITU wrote:
i have already included the remote interface class file by <%@ page import = "University.RemoteInterfaceName" %>in my jsp page ...
if i try to make a new package called test & then include my home interface in that package...i need to import University.*to generate the class file of my home interface ; but the class file generation is not taking place as i am getting the error..
"package University does not exist".How can i overcome this problem. The package University, which you are trying to import, must be in the classpath. If you removed it then you will have to add it back.
i have tried my best..but tell me if there's any possible way of including a class file in the jsp page without involving a package.No, there isn't.
If not,then pls help me to generate the class file of my home interface within a package called test.Read the New To Java Tutorial and understand how packages work.
>
i am assuming that u have a deep knowledge of developing EJB applications.

How to retrieve the parameter names from a JSP page ? Urgent Please

Hello,
Can anybody tell me how to retrieve the parameter names from the JSP
page. (without using getParameterNames() method.)
The problem with the getParameterNames() method is I get the Jumbled output.
I need it very badly
With regards
Ananth R
email:[email protected]
[email protected]

Dear duffymo,
My primary intention is to convert the JSP form information into a XML file.
If I do not get the Parameter names in the correct order how can I maintain
tag order in XML file.
For ex: (JSP PAGE VIEW)
Name--
FirstName
MiddleName
LastName
Address--
Street1
Street2
City
Country
&so on
(XML File to be generated)
<Name>
<FirstName>Value</FirstName>
</Name>
<Address>
<street1>value</street1>
</Address>
& so on
If I use getParameterNames() to get all the parameter names(Which form the tag names in the XML file ) the Enumeration object it returns will not be in the same order as the text fields in JSP.From this I can not construct a meaningful XML file.
order means: Order of entry on the page, from top to bottom
That's it
Waiting for your responses

Edit a word document from a JSP page

hi all,
i would like to know if it is possible to edit a Word document from a JSP page (without uploading it).
thanks.

Technically no. But what you can do is output a word document to the browser with the contenttype "application/msword" and if word is installed it will be opened inside the browser.

Are not interpreted JSTL tags in a JSP page including in a servlet.

Hi people,
I have a project where una page (index.jsp) includes a servlet (MyServlet), that consult a persistence class and get a List of objects (Users),
then the servlet passes the List to a Request object and includes another JSP page (showUsers.jsp). And this is conceptually correct, but don´t works, the JSTL tags are not interpreted in showUsers.jsp.
This is my code...
<%@ taglib uri="http://java.sun.com/jstl/core" prefix="c" %>
<%@ page language="java" contentType="text/html; charset=ISO-8859-1"
    pageEncoding="ISO-8859-1"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
<title>Insert title here</title>
</head>
<body>
<c:out value="Show me some things index.jsp"/>
<div style="border-color:red; border:solid; padding-left:60px">
      <jsp:include flush="true" page="pepe/MyServlet"/>
</div>
</body>
</html>...and the Servlet...
public class MyServlet extends HttpServlet
     public void doGet(HttpServletRequest request, HttpServletResponse response) throws IOException, ServletException
          UserManager um = new UserManager();
          List users = um.getUsers(); //This use Hibernate to return a Users List
          request.setAttribute("users", (ArrayList) um.getUsers());
          request.getRequestDispatcher("/showUsers.jsp").forward(request, response);
}...Finally, we have the showUsers.jsp file....
<c:out value="Show me some thing showUsers.jsp"/>
<table>
     <tr>
          <th>ID</th>
          <th>Name</th>
          <th>e-Mail</th>
          <th>Type</th>
     </tr>
     <tr>
          <c:foreach items="${requestScope.users}" var="user">
               <td><c:out value="${user.id}" /></td>
               <td><c:out value="${user.name}" /></td>
               <td><c:out value="${user.email}" /></td>
               <td><c:out value="${user.type}" /></td>
          </c:foreach>
     </tr>
</table>This i get as result page...
ID      Name      e-Mail      TypeFinally, this is the code of showUsers.jsp...
<c:out value="Show me some thing showUsers.jsp"/>
<table>
     <tr>
          <th>ID</th>
          <th>Name</th>
          <th>e-Mail</th>
          <th>Type</th>
     </tr>
     <tr>
          <c:foreach items="[src.User@18f729c, src.User@ad97f5, src.User@d38976, src.User@1e5c339, src.User@17414c8, src.User@7a17]" var="user">
               <td><c:out value="" /></td>
               <td><c:out value="" /></td>
               <td><c:out value="" /></td>
               <td><c:out value="" /></td>
          </c:foreach>
     </tr>
</table>Somebody can help me?
Many thanks,
Gonzalo

Thanks you all guys,
I appreciate very much your help. In response to everyone ...
BalusC wrote:
Is JSTL taglib declared in top of that JSP page? I don't see it back in the posted code snippet. In this example I stuck...
request.getRequestDispatcher("/showUsers.jsp").forward(request, response);By mistake, but this is just a test, the original line of my servlet is...
request.getRequestDispatcher("/showUsers.jsp").include(request, response);As you can see, both (the servlet and the showUser.jsp file) are included in the index.jsp file. So the header...
<%@ taglib uri="http://java.sun.com/jstl/core" prefix="c" %>...in the index.jsp file should works (I hope so).
njb7ty wrote:
I assume in your web.xml, you have ''pepe/MyServlet' defined as a servlet tag and servlet map tag? Without that, I don't think your JSP will find the servlet. I'm >not sure you need it in web.xml since I never call a servlet from a JSP page.
I suggest putting System.out.println() throughout your servlet code and out.println() in your JSP pages to see exactly what is called and when.
As a general rule, JSP files are to display data only, and submit back to a servlet. The servlet does all the business logic and dispatches to the appropriate >JSP page. The JSP shouldn't have any business logic. Including the servlet looks kinda like including business logic. Actually, in a MVC design, your >presentation, control, busines, and database layers have their own isolated responsibilities.
I suggest the servlet put data as one java bean in request scope via request.setAttribute() and dispatch to the JSP page. The JSP page gets the data via ><useBean> tag. The JSTL gets the variables from the useBean tag and uses the data from there to display it. Really, this is my web.xml file...
<web-app xmlns="http://java.sun.com/xml/ns/j2ee"
     xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
     xsi:schemaLocation="http://java.sun.com/xml/ns/j2ee http://java.sun.com/xml/ns/j2ee/web-app_2_4.xsd"
     version="2.4">
     <servlet>
          <servlet-name>MyServlet</servlet-name>
          <servlet-class>src.MyServlet</servlet-class>
     </servlet>
     <servlet-mapping>
          <servlet-name>MyServlet</servlet-name>
          <url-pattern>/pepe/MyServlet/*</url-pattern>
     </servlet-mapping>
</web-app>Regarding putting System.out.println() and out.println(), i did it and thats works.
Respect of your last comment, I am not a expert in MVC, but I understand that the view layer can make calls to the Controller layer, I am wrong?
evnafets wrote:
It's not. However thats not code, but the generated HTML.
As Balusc pointed out it's the result of running this JSP page without importing the tag library at the top.
Because the tag library is not declared, it treats the <c:forEach> and other tags as template text, and basically ignores them.
It then evaluates the ${items} attribute as an expression in template text, calling toString() on it.
Cheers,
evnafets      The file showUsers.jsp are included into the index.jsp page, that's have the header taglib. Could this works?
BalusC wrote:
njb7ty wrote:
By the way, I dont think this is the correct format for the foreach tag:
<c:foreach items="[src.User@18f729c, src.User@ad97f5, src.User@d38976, src.User@1e5c339, src.User@17414c8, src.User@7a17]" var="user">You're right friend.
And that's my problem. Any ideas?
Thanks everyone,
Gonzalo

Weblogic 6.0 doesn't update my JSP-pages without a restart!!?!

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