Navigation Tag Library JSP Example?

Hi All,
I am trying to follow "Top-Level Navigation iView" example from "SAP NetWeaver Developer's Guide".
In help they have given JSPCode but have not mentioned in which directory I have to make JSP file and in "portalapp.xml" what type of entry I have to write in it. i.e. "<component>, <property>".
I need to know which entry I have to make in "Portalapp.xml" for JSP component and under which directory(PORTAL-INF) I have to made JSP file.
Please let me know where I can find step by step instruction for Navigation iView example.
I will award full points to useful answer.
Thanks in Advance
Ashish.

Hi Mr.Chowdary,
Thanks for your reply and step by step instruction. I followed steps as you describe. I have one question about "portalapp.xml"
Your answer is really helped me.
I go through "portalapp.xml" my question is regarding <components> element. As describe in <component-config> <property name="ClassName" value="com.sap.portal.navigation.LightTopLevelNavigation"/>
There is no "LightTopLevelNavigation.java" file. As per my under standing there should be a java file with name "LightTopLevelNavigation.java" extended from "AbstractPortalComponent" class and keep it under "src.core" or "src.api" folder.
To define a component you should have related java file. please correct me if I am wrong or explain me what is the significant of <component> element when you do not have any "JAVA" file with LightTopLevelNavigation.java
Please guide me as I am new to EP.
<components>
    <component name="LightTopLevelNavigation">
      <component-config>
        <property name="ClassName" value="com.sap.portal.navigation.LightTopLevelNavigation"/>
        <property name="SafetyLevel" value="no_safety"/>
      </component-config>
      <component-profile>
        <property name="NavigationTagLibrary" value="/SERVICE/com.sap.portal.navigation.navigationtaglibrary/taglib/TagLibrary.tld"/>
        <property name="EPCFLevel" value="0"/>
        <property name="com.sap.portal.iview.ShowTray" value="false"/>
        <property name="com.sap.portal.reserved.iview.IsolationMode" value="EMBEDDED"/>
        <property name="NumOfDisplayLevels" value="2">
          <property name="category" value="Navigation"/>
          <property name="plainDescription" value="Number of Display Levels"/>
          <property name="longDescription" value="Specifies the number of levels displayed in the light top-level navigation"/>
        </property>
      </component-profile>
    </component>
</components>
Thanks for your help and guidence. Full points will be awarded once my doubts are cleared.
Thanks.
Ashish

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Hi,
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Hai Preeti,
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Info: We have 9iAS 9.0.2.0.0 running on Sun Solaris (Sparc). I have been to Sun class for JSP/Servlets (SL-314) and have an Iterator custom tag that works fine in Tomcat 4.0. I am compiling on a Windows NT machine using Ant and JDK 1.3. I then deploy using Oracle Enterprise Manager (web interface to 9iAS) and use the Deploy WAR option. The only examples I can find that came with 9iAS use JSP 1.1 Taglib code and they work. Am I missing something, or does 9iAS (9.0.2.0.0) not fully support JSP 1.2 / Servlet 2.3, specifically the 1.2 tag library API?
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Code Snippets from failing JSP:
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Sorry techie_sudhanshu .. i was away for the month with no internet access and just got back... here's an example :
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     <display:setProperty name="paging.banner.onepage" value=""/>
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</display:table>The line where `<display:setProperty name="paging.banner.placement" value="both"/>` was specify solves your problem. By setting it to BOTH it will appear above and bottom of the paging table.

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
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am slightly concerned that my OracleConnectionCacheImpl object
may exist multiple times, hence rendering my conection pooling
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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;
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* <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
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* <attribute>
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* <required>true</required>
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* </attribute>
* </pre>
* @author Matt Shannon
public class ConnectionTag extends TagSupport {
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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) {
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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
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* <p>JSP Tag Lib Descriptor
* <pre>
* <name>closeConnection</name>
<tagclass>com.solved.tag.dbtags.connection.CloseConnectionTag&
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* <bodycontent>empty</bodycontent>
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attribute is the name of a
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* <attribute>
* <name>conn</name>
* <required>true</required>
* <rtexprvalue>false</rtexprvalue>
* </attribute>
* </pre>
* @author Matt Shannon
* @see ConnectionTag
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* @param connectionId
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* @see ConnectionTag
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_connId = connectionId;
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try {
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(_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
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* @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
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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

"No tag library could be found with this URI" error while compiling jsp

I am using WebLogic Server 9.2 MP1, JDK 1.5.0_09, Struts 1.3.5
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          Edited by jqian at 02/02/2007 10:24 AM

Yes sorry, you're correct. The uri I mentioned is just 1.0.
Do you have the "Oracle WebLogic Web App Extension" Facet for your web project? If not, try adding that and making sure that there is a weblogic.xml file created in the WEB-INF dir. The weblogic.xml file allows you to deploy usig a shared lib for JSTL. It should contain a library-ref element something like the following, with a version of 1.1.
<wls:library-ref>
<wls:library-name>jstl</wls:library-name>
<wls:specification-version>1.1</wls:specification-version>
<wls:exact-match>true</wls:exact-match>
</wls:library-ref>

SQL in JSP - do I use JAVA code in % ... % or SQL Tag Library ??

I have a small web app that makes needs to make about 12 SQL queries in a JSP and am trying to figure out what is the best way to do this
I had initially coded this using plain JAVA code in the JSP as follows :-
<%
Connection conn = null;
Statement st = null;
ResultSet rs = null;
try {
st = conn.createStatement();
rs = st.executeQuery("select .........");
%>
But then I came across the SQL Tag Library in an article and wonder if this is more efficient code?
If so does anyone have a pointer to a good intro to these tags as they look complicated (I only am doing queries on the SQL database, no inserts or updates)

Sometimes you've gotta do what you've gotta do.
My rule is "no scriptlets".
If you MUST access a database from a JSP, the only right way to do it is to use JSTL <sql> tags.
%

Problem in using jsp 1.1 custom tag library in websphere

I am using was 3.5.2. Everything has been installed properly. I am using jdeveloper 3.2 for building the jsp application using custom tag library. But when I run the jsp file in browser, its gives dr. watson on java.exe. I am using websphere 3.5.2 application server.
Have any body got this type of prob. ...
pls respond asap.
Thanks in Advance
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Let me explain the problem again
I am using was(websphere) 3.5.2. Everything has been installed properly. I am using jdeveloper 3.2 for building the jsp application using custom tag library.
Application works fine in JDeveloper 3.2.
Application works fine even when deployed on JRun 3.0. ( we are evaluating various web servers).
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WAS has typical settings as against JRun and Tomcat and may be I have not set the necessary paths.
Have any body got this type of prob. ...
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null

How to get the JSP Name calling the Tag Library inside the Tag Library

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}I have also defined the pentags.tld:
<taglib 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 web-jsptaglibrary_2_0.xsd"
          version="2.0">
     <description>My Tag Library</description>
     <tlib-version>1.0</tlib-version>
     <short-name>pentags</short-name>
     <tag>
          <name>penstart</name>
          <tag-class>com.srh.tag.PenStart</tag-class>
          <body-content>empty</body-content>
     </tag>
</taglib>I am calling the tag library in my JSPs:
<%@ taglib uri="WEB-INF/pentags.tld" prefix="pen"%>
<pen:penstart/>Now in the doStartTag() I want to know the JSP which is using the tag. How can I do that?
Thanks

pageContext.getRequest().getRequestURI()

Weblogic.servlet.jsp.JspException: (line 1): Error in using tag library uri

Previously my web app was running fine using eclipse 3.1
When I upgraded my eclipse to 3.2 then built the same web app and deployed, upon running the url i got error
weblogic.servlet.jsp.JspException: (line 1): Error in using tag library uri='/tags/css' prefix='css' : cannot find tag class
Your help is appreciated.

          Hi Guys
          Problem is almost certainly because I've gone and defined the get as returning
          an int, (hence no property!)
          Apols
          J

Problems with JSP - using tag library with Weblogic 8.1

I am getting the following error when I try to run a web application called "regain":
/searchinput.jsp(2): Error in using tag library uri='regain-search.tld' prefix='search': cannot find tag class: 'net.sf.regain.ui.server.taglib.MsgTag'
probably occurred due to an error in /searchinput.jsp line 2:
<%@taglib uri="regain-search.tld" prefix="search" %>
The classes that the .tld file points to are in the web applications WEB-INF/classes directory and I have put this path into my classpath environment variable (running Windows 2000 Server).
This application runs fine on Tomcat.
I can't not figure out whether is error is masking another error or what. I've tried using JDK and Jrockit for my web app - no luck.
Please help! Thanks!

anyone? :/

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