Dynamic include inside custom tag body

I am trying to perform the dynamic include of another JSP from within the body of a custom tag using JSP1.1. It cannot be done using <jsp:include> since flush=true is required and thus an exception is thrown when called from inside the body of a custom tag - it can be done in JSP1.2 since flush does not have to be set to true but upgrading is not possible at this time.
Does anyone know of any custom tag or the code needed to perform this function with JSP1.1?
I am using Tomcat 3.2.3.
Using a RequestDispatcher and calling include() does not have the desired effect since the output is witten directly to the response and does not go into the correct position in the calling JSP.
I think the solution involves making a call to the included JSP (is it possible to use a RequestDispatcher that doesn't write directly to the page output stream?) and then append the response to the BodyContent object which is buffering the body content of the custom tag until the doAfterBody() method is called. Is it possible to create a dummy ServletResponse object to pass to the RequestDispatcher and then obtain the HTML response from the internal buffer?

I don't know if there is a solution to the problem you are having with JSP 1.1. If you look in the spec, it actually warns you that dynamic includes can not be done inside a body tag. The spec actually states that the included code shout write directly to the response and not to the BodyContent.
I was excited to find out they had fixed this in JSP 1.2, but they seem to have foiled me again. If my tag calls PageContext.include(), the spec says that include must call the flush method, which causes BodyContent to throw an exception since flush is not a valid call.

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JSF dynamic include and custom tag

Anybody has experience to enclude custom tags between <f:verbatim> </f:verbatim> ? The custom code embeded this tags won't work, my code as below:
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<%-- jsf:pagecode language="java" location="/JavaSource/pagecode/jsp/Server_request.java" --%><%-- /jsf:pagecode --%>
<%@taglib uri="http://www.ibm.com/jsf/html_extended" prefix="hx"%>
<%@taglib uri="http://java.sun.com/jsf/html" prefix="h"%>
<%@taglib uri="http://java.sun.com/jstl/core" prefix="c" %>
<%@taglib uri="/WEB-INF/mytaglib.tld" prefix="first" %>
<HTML>
<HEAD>
<%@ taglib uri="http://java.sun.com/jsf/core" prefix="f"%>
<%@ page language="java" contentType="text/html; charset=ISO-8859-1"
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<META http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
<META name="GENERATOR" content="IBM Software Development Platform">
<META http-equiv="Content-Style-Type" content="text/css">
<LINK href="../theme/Master.css" rel="stylesheet"
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<TITLE>server_request.jsp</TITLE>
<LINK rel="stylesheet" type="text/css" href="../theme/stylesheet.css"
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<f:view>
     <BODY><hx:scriptCollector id="scriptCollector1">
     <P><hx:outputLinkEx styleClass="outputLinkEx" value="header"
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<jsp:include page="server_req.jsp"/>
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     </hx:scriptCollector></BODY>
</f:view>
</HTML>
<%@taglib uri="http://java.sun.com/jsf/core" prefix="f"%>
<%@taglib uri="/WEB-INF/mytaglib.tld" prefix="first"%>
<f:subview id="server_req">
<f:verbatim>
<first:hello/>
</f:verbatim>
</f:subview>

I don't know if there is a solution to the problem you are having with JSP 1.1. If you look in the spec, it actually warns you that dynamic includes can not be done inside a body tag. The spec actually states that the included code shout write directly to the response and not to the BodyContent.
I was excited to find out they had fixed this in JSP 1.2, but they seem to have foiled me again. If my tag calls PageContext.include(), the spec says that include must call the flush method, which causes BodyContent to throw an exception since flush is not a valid call.

How to access variables passed in custom tag body

I am developing custom tags in my application. I need to pass some variables from the .jsp file into tag file. I want these to be passed as body of the tag rather than as tag parameter. It seems the correct syntax for this is:
<myTags:display> someVariable </myTags:display>
Question 1: Can I not use this as: <myTags:display someVariable /> Since this tag will be used at many places in the jsp, I dont want to write myTags:display twice for every usage.
Question 2:
I want to call the tags from main.jsp like:
<% String var1 = "Display Me Please"; %>
<myTags:display var1 />I want the tag file to do some processing on the value stored in var1. I've written the following code in tag file, display.tag:
<jsp:doBody var="theBody" />
<% Object obj = (Object) request.getAttribute ("theBody"); %>This code snippet gives me access to obj which has the value "var1". Now how do I access the value that is contained in "var1".
Edited by: coolkomal on Jun 3, 2009 7:45 AM

coolkomal wrote:
I am developing custom tags in my application. I need to pass some variables from the .jsp file into tag file. I want these to be passed as body of the tag rather than as tag parameter. It seems the correct syntax for this is:
<myTags:display> someVariable </myTags:display>
Question 1: Can I not use this as: <myTags:display someVariable /> Since this tag will be used at many places in the jsp, I dont want to write myTags:display twice for every usage.
<myTags:display var="<%=someVariable>"/> is a valid syntax for performing respective action of that variable. You can also use EL to pass the variable ${someVariable} provided the custom tag provide support for EL.
>
Question 2:
I want to call the tags from main.jsp like:
<% String var1 = "Display Me Please"; %>
<myTags:display var1 />
Just ensure that you declare all the related variables in Main.jsp and statically include Main.jsp in your jsp such that you do the checking
[http://java.sun.com/products/jsp/tags/11/syntaxref117.html]
>
I want the tag file to do some processing on the value stored in var1. I've written the following code in tag file, display.tag:
<jsp:doBody var="theBody" />
<% Object obj = (Object) request.getAttribute ("theBody"); %>This code snippet gives me access to obj which has the value "var1". Now how do I access the value that is contained in "var1".Can be done provided you code it the right way. Start learning basics of how to create custom taglibraries to gain more knowledge on how things can be managed.
[http://java.sun.com/javaee/5/docs/tutorial/doc/bnalj.html]

JSF custom tag body content problem

Hi, I'm having some problem with a custom tag I built, but the body of the tag content is not rendered correctly.
I have:<foo:bar>
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        <li>blah</li>
    </ul>
</foo:bar>
</pre>But the rendered html source look like this:    <ul>
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The <ul> tags are supposed to be inside of the  & . I've declared in TLD it has JSP content. I've compared to the J2EE tutorial and corejsp book again and again, couldn't figure where I went wrong. So, am I missing something?
Thanks a lot.

Use <f:verbatim> around the non-jsf content.
I.e.<foo:bar>
<f:verbatim>
    <ul>
        <li>blah</li>
        <li>blah</li>
    </ul>
</f:verbatim>
</foo:bar>--
Sergey : jsfTutorials.net

How can i use JSTL inside custom tag attribute

Hi,
I have one button tag which displays the button with round corner. I will show the button like this:
<ep:button key="buttons.submit" name="submitBtn" styleClass="But"
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I am getting the problem with the above code. how can i use JSTL inside the custom tags.
Thanks in Advance,
LALITH

No. The details are given below:
I have included the follwing line in web.xml file:
<taglib>
    <taglib-uri>/tags/button</taglib-uri>
    <taglib-location>/WEB-INF/button.tld</taglib-location>
</taglib>button.tld file
<taglib>
     <tlibversion>1.0</tlibversion>
     <jspversion>2.0</jspversion>
     <shortname>button</shortname>
     <tag>
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          <attribute>
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               <required>true</required>
               <rtexprvalue>false</rtexprvalue>
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          <attribute>
               <name>key</name>
               <required>true</required>
               <rtexprvalue>true</rtexprvalue>
          </attribute>
          <attribute>
               <name>onClick</name>
               <required>true</required>
               <rtexprvalue>true</rtexprvalue>
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</taglib>ButtonTag.java :
public class ButtonTag extends TagSupport {
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     * Initialise the logger for the class
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     * holds message resources key
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     * The message resources for this package.
    protected static MessageResources messages =
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                label.append("\" ");
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             pageContext.getOut().print(label.toString());
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     * Release all allocated resources.
    public void release() {
        this.name=null;
        this.key=null;
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}In my JSP I have mentioned the taglib directive as
<%@ taglib uri="/tags/button" prefix="ep"%>and
<ep:button key="buttons.submit" name="submitBtn" styleClass="But"
     onClick='overwritePreApprovals('<c:out value='${transactionalDetails['inPrepList']}' />')' />Servlet.service() for servlet action threw exception
org.apache.jasper.JasperException: /pages/pms/coordinator/Dashboard.jsp(325,48) Unterminated <ep:button tag
Thanks,
LALITH

Is it possible to pass dynamic values to custom tag?

Hi there, I'm trying to build a calendar custom tag so I can drop the calendar into an existing webpage easily.
I have got the calendar displaying on the page but the problem I have is when I try to create 'previous' and 'next' links. Is it possible to pass parameters to a custom tag that have dynamic values?
In PHP it would looks something like:
<a href="bla.php?page=$pagenumber">next page</a>When I create the calendar object I set it to the current date so when I try to increase or decrease the month (next/prev month) it doesn't work because the code is run again and hence setting the current date again.
Any ideas?
Cheers in advance
Message was edited by:
MajorMahem

for eg
<a href=" Display.jsp?id='+<%=customerId%>">Result Page</a>
Please try this,
i didn't work out, any how apply this sample to your code

Dynamic attributes in custom tag

Hi,
I am new to JSP, and i want to build a custom tag. in this custom tag i have declared for example 5 attributes. i want to have a custom tag that when i set the attribute1 content to "true", only attribute2 and attribute3 would be accessible and if i set the attribute1 content to "false", only attribute4 and attribute5 would be accessible
<%@taglib uri="/WEB-INF/MyTLD2.tld" prefix="myTag" %>
<myTag:DB attribute1 ="true" attribute2="Table1" attribute3="ID,Name,Tel" />
<myTag:DB attribute1 ="false" attribute4="Table1" attribute5=" UpdateTable" />

Or you could go for a more general definition of what the attributes mean. Instead of having 5 attributes that the user only needs 3 of, you could do something like:
<myTag:DB sourceType="string" table="Table1" data="ID,Name,Tel"/>
<myTag:DB sourceType="table" table="Table1" data="UpdateTable"/>
(use just three attributes, all required, but with different expected values for the second or third attribute based on what the first one is).
Then have your tag do:
if ("string".equals(sourceType)) runStringSourceQuery(table, data);
if ("table".equals(sourceType)) runTableSourceQuery(table, data);Either way, good documentation is needed to make sure what is needed under what circumstances.

Dynamic values inside th tag

Hi All
This is the source of an pl/sql dynamic content.I want to make it a little dynamic.Instead of 2012 in line number 9 i want to use a variable.How can i achieve this,i have defined a variable in the declare section,i want that variable value to be used instead of 2012.
declare
a char(10);
begin
a:='20000';
htp.p('<table border="1" cellpadding="1" cellspacing="1" style="width: 1000px; height: 31px">');
htp.p('<thead>');
htp.p('<tr><th colspan="11" scope="col" style="background-color: #999999">Box 2 - Total Project Spend ($000)</th></tr>');
htp.p('<tr><th scope="col"></th>');
htp.p('<th colspan="3" scope="col">2012 a</th>'); -------------> instead of 2012 i want to use the value of a
htp.p('<th colspan="3" scope="col">2013</th>');
Thanks Robert

Hey guys i found out the answer..
htp.p('<th colspan="3" scope="col">'||a||'</th>');

Jsp:include problem in custom tag

I call <jsp:include page="emailbody.jsp" /> within a custom tag(in a file
          caller.jsp), which does emailing.
          When I invoke caller.jsp from browser, I do get the output(body of the
          email) on the browser screen, but not the output is not send as the body of
          the email.
          When I use static include namely, <@include file="emailbody.jsp" />, the
          output is directed to the body of the email.
          The above means, for a static jsp include file, it is parsed and included in
          the body-evaluation of the custom tag.
          For a dynamic include file, it is NOT parsed and NOT included in the
          body-evaluation of the custome tag.
          The reason could be, How Weblogic loads classes for custom-tag for dynamic
          include files.
          Can anybody at BEA throw loght on this and the solution.
          Thanks in advance.
          Chandra


Well I found out jsp:include is not supported inside custom tags for JSP
          spec 1.1.
          This was stated in section 5.4.5 of spec 1.1.
          May be in future spec 1.2.
          Thanks
          Chandra
          "Cameron Purdy" <[email protected]> wrote in message
          news:[email protected]...
          > Have you sent this to [email protected]?
          >
          > It sounds serious.
          >
          > Peace,
          >
          > --
          > Cameron Purdy
          > Tangosol, Inc.
          > http://www.tangosol.com
          > +1.617.623.5782
          > WebLogic Consulting Available
          >
          >
          > "matthew mcclain" <[email protected]> wrote in message
          > news:[email protected]...
          > > I have run into the same problem.
          > > I'm certain it's because CustomTags have their own buffer and
          > > jsp:include or pageContext.include() or requestDispatcher.include()
          > > all bypass the buffer and write to the underlying stream.
          > >
          > > I attempted to define jspx:include by wrapping the response object
          > > which is sent to requestDispatcher.include and then wrapping the
          > > OutputStream returned from the response with a stream which
          > > writes to the "out" of the pageContext for my tag.
          > >
          > > Unfortunately, I get a class cast exception because weblogic expects
          > > it's own class to be there as a ServletOutputStream:
          > >
          > > java.lang.ClassCastException:
          com.allmystuff.wif.IncludeServletResponse$1
          > > at
          > >
          >
          weblogic.servlet.internal.RequestDispatcherImpl.include(RequestDispatcherImp
          > > l.java:202)
          > > at
          > >
          >
          weblogic.servlet.internal.RequestDispatcherImpl.include(RequestDispatcherImp
          > > l.java:172)
          > > at com.allmystuff.wif.Include.doStartTag(Include.java:37)
          > >
          > > So any chance, jsp:include will get fixed?
          > >
          > > Thanks,
          > > Matthew McClain
          > > [email protected]
          > >
          > >
          > > "chandra" <[email protected]> wrote in message
          > > news:[email protected]...
          > > > I call <jsp:include page="emailbody.jsp" /> within a custom tag(in a
          > file
          > > > caller.jsp), which does emailing.
          > > > When I invoke caller.jsp from browser, I do get the output(body of the
          > > > email) on the browser screen, but not the output is not send as the
          body
          > > of
          > > > the email.
          > > > When I use static include namely, <@include file="emailbody.jsp" />,
          the
          > > > output is directed to the body of the email.
          > > >
          > > > The above means, for a static jsp include file, it is parsed and
          > included
          > > in
          > > > the body-evaluation of the custom tag.
          > > > For a dynamic include file, it is NOT parsed and NOT included in the
          > > > body-evaluation of the custome tag.
          > > > The reason could be, How Weblogic loads classes for custom-tag for
          > dynamic
          > > > include files.
          > > > Can anybody at BEA throw loght on this and the solution.
          > > > Thanks in advance.
          > > > Chandra
          > > >
          > > >
          > >
          > >
          >
          >

Custom tag attribute calculated by scriptlet expression

Hi,
          If I set the rtexprvalue subelement of the attribute element in my tld to
          "true", should I be able to dynamically determine the value of my custom tag
          attribute using a scriptlet expression?
          When I include the custom tag reference:
          <prod:getCategory id="category"
          categoryID="<%=request.getParameter("catID")%>" scope="page"/>
          it actually gets written to the html as:
          <prod:getCategory id="category" categoryID="2133" scope="page"/>
          and is not recognized as a jsp tag.
          I am using weblogic 6.0 sp1.
          Thanks in advance!
          daniel


I had the same problem in a design a couple of months ago and could not get around it so I switched the functionality into code and out of the tag lib.
I take it you are trying to do something like this?
<%
String value="hiworld";
%>
<mytaglib:saysomething value="<%=value%>"/>

Questions in Custom Tag

Hi,
I have couple of questions in Custom Libraray Tags:
1) How I can from Tag Java file to open a new JSP window without the toolbars and determine the window size.
2) How I can read a JSP parameter from Tag Java file. For example I have a field called "x" in JSP is not connected to the TAG by setAttribute.
3) How I can pass a dynamic value to custom tag. <route:routeList agentID = "1" >
how I can change the "1" to a field. When I change it to: <route:routeList agentID = "<%=request.getParameter("agentID")%>" > or to <route:routeList agentID = <%=request.getParameter("agentID")%> > I get empty value, even though the field has a value.
Thank you ...

[email protected] ... Well, if you put something as an attribute in the pageContext object, you can get it... same as request or session scope attributes, but I thought the OP meant to do this (I guess not, though.. see below):
<%
String str = "...";
%>
<mytag:stuff .... />
And within the stuff tag, use str as a variable. I don't believe that's possible, because the compiled page in effect becomes like this:
String str = "...";
doStuffTag(whatever the parameters are);
Obviously that's not the right naming for the tag, but you get the idea...
JavaUserProg....
2) First, it's best to put quotes around the tag attributes...
<INPUT readOnly style="WIDTH: 84px; HEIGHT: 22px" name="operation[<%= lineNum%>"] value="<%=operation%>">
Second, do you mean you want to read from the tag what the HTML input field has in it? First, you have to submit the form, then the call request.getParameter("fieldname") to get the value. Otherwise, I'm not clear on what you are really trying to do.
3) If the field in the tag is an int field: setAgentID(int)
Then you can define the tag value as:
<mytag:stuff agentID="1" />
or
<% int aid = 1; %>
<mytag:stuff agentID="<%= aid %>" />
If you just put a static string value like the first way, it converts it. If you put an expression, the expression has to match the type of value it really is. So int for int, String for String, Collection for Collection.

Dynamic include in a custom tag, called from a jsp

Hello, I would like to be able to dynamically include other jsp's from within a custom tag that I create. is this possible?
in a jsp page i would just write <%@ include file="file.jsp" %> and all would be ok... but if i do an out.println( "<%@ include file=\"file.jsp\" %>" ); inside a custom tag bean then it doesn't work. it just prints out the command to the page as plain text.
I do understand why this is happening, but can anyone offer me a way around this problem?
Thanks in advance,
Randy

That's actually the same result as you get with a normal include - The method I suggested is a dynamic include similar to the <jsp:include> tag, not the <%@ include %> tag.
When you use a dynamic include, the included page is compiled and 'invoked' as serarately, and the result is what gets included, not the actual source. To get the behaviour you want would require an include directive (the <%@ include %> tag) which I don't think has an equivalence you can use inside a custom tag.
What you can do is pass attributes from the tag class like this:
pageContext.setAttribute(<name>, <object>, pageContext.REQUEST_SCOPE);
and then remove them after the include using pageContext.removeAttribute.
I'm not certain, but this implies that if you declare your variables with a <jsp:usebean> tag with request scope, instead of normal Java variable declarations, you should be able to use them in the page included by the custom tag.
*** in the jsp ***
<jsp:useBean id="myVar" scope="request" class="java.lang.String" />
<% myVar = "Something"; %>
// Now call the tag which uses the pageContext.include() mehtod.
*** end ***
*** in the include ***
<jsp:useBean id="myVar" scope="request" class="java.lang.String" />
<%= myVar + " something else" %>
*** end ***
Let me know if it works.

Problem using jsp:include from inside a custom tag

Hi, All !
          I have a problem using <jsp:include> from inside a custom tag. Exception is:
          "java.lang.ClassCastException: weblogic.servlet.jsp.BodyContentImpl"
          Apparently, weblogic tries to cast BodyContentImpl to JspWriterImpl and
          could not do this. Is it a bug, since in the 1.1 spec is said: "The
          BodyContent is a subclass of JspWriter that can be used to process body
          evaluations so they can retrieved later on."
          My code is:
          <wfmklist:items>
          <jsp:include page="item.jsp" flush="true"/>
          </wfmklist:items>


This is an area of contention with WL. It is not so tolerant with regards to
          the spec. I spent several days recently trying to convince it to accept the
          specification in regards to bodies and includes and it appears to have
          successfully rebuffed my efforts.
          Frankly, this is very disappointing. It appears that some shortcuts were
          taken on the way to JSP 1.1 support, and the result is a very hard-coded,
          inflexible implementation. As I have not seen the implementation myself, I
          hate to assume this, however one could posit that the term "interface" was a
          foreign concept during the implementation, other than as some annoying
          intermediary reference requiring an immediate cast to a specific Weblogic
          class, which in turn is apparently required to be final or have many final
          methods, as if being optimized for a JDK 1.02 JIT.
          I am sorry that I don't have any positive suggestions other than to use a
          URL object to come back in an execute the necessary "include" directly. You
          lose all context (other than session) and that can cause its own problems.
          However, you can generally get the URL approach to work, and you will
          hopefully avoid further frustration.
          Peace,
          Cameron Purdy
          Tangosol, Inc.
          http://www.tangosol.com
          Tangosol: How Weblogic applications are customized
          "Denis" <[email protected]> wrote in message
          news:[email protected]...
          > Hi, All !
          > I have a problem using <jsp:include> from inside a custom tag. Exception
          is:
          > "java.lang.ClassCastException: weblogic.servlet.jsp.BodyContentImpl"
          >
          > Apparently, weblogic tries to cast BodyContentImpl to JspWriterImpl and
          > could not do this. Is it a bug, since in the 1.1 spec is said: "The
          > BodyContent is a subclass of JspWriter that can be used to process body
          > evaluations so they can retrieved later on."
          >
          > My code is:
          > ...
          > <wfmklist:items>
          > <jsp:include page="item.jsp" flush="true"/>
          > </wfmklist:items>
          > ...

Include external html trough code in a custom tag

Hi,
I have a custom tag. The component class (say MyComponentUI) for my custom component extends UIComponentBase.
I want to include an external html page, which url is formed using the content of an attribute of my tag (for example, the "value" attribute), through the MyComponentUI code.
Can anyone give me some help ?
Pietro

That's actually the same result as you get with a normal include - The method I suggested is a dynamic include similar to the <jsp:include> tag, not the <%@ include %> tag.
When you use a dynamic include, the included page is compiled and 'invoked' as serarately, and the result is what gets included, not the actual source. To get the behaviour you want would require an include directive (the <%@ include %> tag) which I don't think has an equivalence you can use inside a custom tag.
What you can do is pass attributes from the tag class like this:
pageContext.setAttribute(<name>, <object>, pageContext.REQUEST_SCOPE);
and then remove them after the include using pageContext.removeAttribute.
I'm not certain, but this implies that if you declare your variables with a <jsp:usebean> tag with request scope, instead of normal Java variable declarations, you should be able to use them in the page included by the custom tag.
*** in the jsp ***
<jsp:useBean id="myVar" scope="request" class="java.lang.String" />
<% myVar = "Something"; %>
// Now call the tag which uses the pageContext.include() mehtod.
*** end ***
*** in the include ***
<jsp:useBean id="myVar" scope="request" class="java.lang.String" />
<%= myVar + " something else" %>
*** end ***
Let me know if it works.

Connection Pooling and JSP Custom Tag Library - is code (inside) the best way/correc?

Hi, can anyone advise as to whether my tag library code (based
on Apache Jakarta Project) will actually achieve connection
pooling functionality across my entire JSP based application? I
am slightly concerned that my OracleConnectionCacheImpl object
may exist multiple times, hence rendering my conection pooling
attempt useless.
package com.solved.tag.dbtags.connection;
import java.io.IOException;
import java.sql.Connection;
import java.sql.SQLException;
import javax.servlet.jsp.tagext.TagSupport;
import javax.servlet.jsp.JspTagException;
import javax.sql.DataSource;
import javax.naming.InitialContext;
import javax.naming.NamingException;
import oracle.jdbc.pool.OracleConnectionCacheImpl;
* <p>JSP tag connection, used to get a
* java.sql.Connection object.</p>
* <p>JSP Tag Lib Descriptor
* <pre>
* <name>connection</name>
<tagclass>com.solved.tag.dbtags.connection.ConnectionTag</t
agclass>
* <bodycontent>JSP</bodycontent>
<teiclass>com.solved.tag.dbtags.connection.ConnectionTEI</t
eiclass>
* <info>Opens a connection based on a jndiName.</info>
* <attribute>
* <name>id</name>
* <required>true</required>
* <rtexprvalue>false</rtexprvalue>
* </attribute>
* </pre>
* @author Matt Shannon
public class ConnectionTag extends TagSupport {
static private OracleConnectionCacheImpl cache = null;
public int doStartTag() throws JspTagException {
try {
Connection conn = null;
if (cache == null) {
try {
InitialContext ic = new InitialContext();
DataSource ds = (DataSource) ic.lookup
("jdbc/pool/OracleCache");
cache = (OracleConnectionCacheImpl)ds;
catch (NamingException ne) {
throw new JspTagException(ne.toString());
conn = cache.getConnection();
pageContext.setAttribute(getId(),conn);
catch (SQLException e) {
throw new JspTagException(e.toString());
return EVAL_BODY_INCLUDE;
package com.solved.tag.dbtags.connection;
import java.sql.Connection;
import java.sql.SQLException;
import javax.servlet.jsp.tagext.TagSupport;
* <p>JSP tag closeconnection, used to close the
* specified java.sql.Connection.<p>
* <p>JSP Tag Lib Descriptor
* <pre>
* <name>closeConnection</name>
<tagclass>com.solved.tag.dbtags.connection.CloseConnectionTag&
lt;/tagclass>
* <bodycontent>empty</bodycontent>
* <info>Close the specified connection. The "conn"
attribute is the name of a
* connection object in the page context.</info>
* <attribute>
* <name>conn</name>
* <required>true</required>
* <rtexprvalue>false</rtexprvalue>
* </attribute>
* </pre>
* @author Matt Shannon
* @see ConnectionTag
public class CloseConnectionTag extends TagSupport {
private String _connId = null;
* The "conn" attribute is the name of a
* page context object containing a
* java.sql.Connection.
* @param connectionId
* attribute name of the java.sql.Connection to
close.
* @see ConnectionTag
public void setConn(String connectionId) {
_connId = connectionId;
public int doStartTag() {
try {
Connection conn = (Connection)pageContext.getAttribute
(_connId);
conn.close();
} catch (SQLException e) {
// failing to close a connection is not fatal
e.printStackTrace();
return EVAL_BODY_INCLUDE;
public void release() {
_connId = null;
package com.solved.tag.dbtags.connection;
import javax.servlet.jsp.tagext.TagData;
import javax.servlet.jsp.tagext.TagExtraInfo;
import javax.servlet.jsp.tagext.VariableInfo;
* TagExtraInfo for the connection tag. This
* TagExtraInfo specifies that the ConnectionTag
* assigns a java.sql.Connection object to the
* "id" attribute at the end tag.
* @author Matt Shannon
* @see ConnectionTag
public class ConnectionTEI extends TagExtraInfo {
public final VariableInfo[] getVariableInfo(TagData data)
return new VariableInfo[]
new VariableInfo(
data.getAttributeString("id"),
"java.sql.Connection",
true,
VariableInfo.AT_END
data-sources.xml:
<?xml version="1.0"?>
<!DOCTYPE data-sources PUBLIC "Orion data-
sources" "http://xmlns.oracle.com/ias/dtds/data-sources.dtd">
<data-sources>
<data-source
class="oracle.jdbc.pool.OracleConnectionCacheImpl"
name="jdbc/pool/OracleCache"
location="jdbc/pool/OracleCache"
url="jdbc:oracle:thin:@oracle1:1521:pdev"
>
<property name="maxLimit" value="15" />
<property name="cacheScheme" value="2" />
<property name="user" value="console" />
<property name="password" value="console" />
<description>
This DataSource is using an Oracle-native DataSource Class so as
to allow Oracle Specific extensions.
A getConnection() call on this DataSource will return
oracle.jdbc.driver.OracleConnection.
The connection returned is a logical connection.
The caching scheme in place is Fixed Wait. Refer below to
possible values.
Dynamic 1
Fixed Wait 2
Fixed Return Null 3
</description>
</data-source>
</data-sources>
many thanks,
Matt.

Hi. Show me your pool definition.
Joe
Ramamurthy wrote:
I am using the jsp custom tag library from BEA called sqltags.tld which came with Weblogic 5.1. Currently I am using Weblogic6.1 sp2 on Solaris.
I have created a Connection Pool for Sybase database using the driver com.sybase.jdbc.SybDriver.
When I created jsp page to connect to the connection pool using sqltags custom tag library, I am getting the error
"javax.servlet.jsp.JspException: Failed to write body content
at weblogic.taglib.sql.ConnectionTag.doAfterBody(ConnectionTag.java:43)
at jsp_servlet.__hubwcdata._jspService(__sampletest.java:1014)"
After this message, whenever I try to access the same jsp page I am getting the message
"javax.servlet.jsp.JspException: Failed to load JDBC driver: weblogic.jdbc.pool.D
river
at weblogic.taglib.sql.ConnectionTag.doStartTag(ConnectionTag.java:34)
at jsp_servlet.__hubwcdata._jspService(__sampletest.java:205)".
Can you please help me the reason why this problem is happening and how to fix this ?
This problem doexn't happen consistently. This occurs once in a while.
I tried to increase Login delay Seconds parameter in the Connection Pool to 15 sec. It didn't help me much.
Thanks for your help !!!
Ram

Dynamic include inside custom tag body

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