sun ram

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Recent posts by sun ram

EL in not working

Do use script let in JSP 2.0

19 years ago

JSP

ladp authentication

For easy user Administation. Basically you store all user information like userid, password, Name in LDAP. we can configuraion other applcation to authentication agianst LDAP.

check out openldap website for more information.

20 years ago

Security

Help (Solaris)

I don't thing you can get this information using lsof command. lsof command will give currently openned files list. It will not give file access history information.

Also I don't know any commands for this.

-SR

20 years ago

GNU/Linux

Which linux distro for java programming??

Hi,

We have used Redhat 7/8/9 and Enterprise Linux with IBM & JDK for different application, we didn't have much problem with it.

Also for some application I Am using SuSE 9.0/9.1.

-SR

20 years ago

GNU/Linux

JSP 2.0 setting collection value

Hi,
I have following JSP file, basically I want to create an array collection and assing some values. But is not working, giving me error message.
What I am doing worng here?
-SR
<%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %>
<html>
<head>
<title>Array Collection</title>
</head>
<body>
<br>
<jsp:useBean id="item" class="java.util.ArrayList"/>
<c:set target="${item[0]}" value="hello"/>
<c

ut value="${item[0]}"/>

</body>
</html>
Error message
2004-04-19 15:03:11 StandardWrapperValve[jsp]: Servlet.service() for servlet jsp threw exception
javax.servlet.jsp.JspTagException
at org.apache.taglibs.standard.tag.common.core.SetSupport.doEndTag(SetSupport.java:202)
at org.apache.jsp.arr_jsp._jspx_meth_c_set_0(arr_jsp.java:108)
at org.apache.jsp.arr_jsp._jspService(arr_jsp.java:74)
at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:133)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:856)
at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:311)
at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:301)
at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:248)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:856)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:284)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:204)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:257)
at org.apache.catalina.core.StandardValveContext.invokeNext(StandardValveContext.java:151)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:567)
at org.apache.catalina.core.StandardContextValve.invokeInternal(StandardContextValve.java:245)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:199)
at org.apache.catalina.core.StandardValveContext.invokeNext(StandardValveContext.java:151)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:567)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:184)
at org.apache.catalina.core.StandardValveContext.invokeNext(StandardValveContext.java:151)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:164)
at org.apache.catalina.core.StandardValveContext.invokeNext(StandardValveContext.java:149)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:567)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:156)
at org.apache.catalina.core.StandardValveContext.invokeNext(StandardValveContext.java:151)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:567)
at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:972)
at org.apache.coyote.tomcat5.CoyoteAdapter.service(CoyoteAdapter.java:206)
at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:833)
at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.processConnection(Http11Protocol.java:732)
at org.apache.tomcat.util.net.TcpWorkerThread.runIt(PoolTcpEndpoint.java:619)
at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:688)
at java.lang.Thread.run(Thread.java:534)

20 years ago

Web Component Certification (OCEJWCD)

Please Help Me

Hi,
Even I would suggest to take the newer version. JSP 2.0 has lot of new features. reduce lot of development work.
-SR

20 years ago

Web Component Certification (OCEJWCD)

Which is better (and for what): JSP or velocity?

HI
First start to learn about JSP. Use Tomcat 5 for jsp 2.0.
This will give you some idea about JSP.
I don't know much about velocity.
SR

20 years ago

JSP

JSP with tabs

Use JSP 2.0 you can reduce lot of coding. also look at this
http://www.common-controls.com/en/products/
product, this will give you some idea.
SR

20 years ago

JSP

JSLT printing c:out value

Thanks, It worked.
-SR

20 years ago

Web Component Certification (OCEJWCD)

JSLT printing c:out value

Hi,
I want to print the hastable name value, but its not working.
Here is the code, I want to print name key value.
===========
<%@ page contentType="text/html; charset=iso-8859-1" language="java" import="java.util.*" %>
<%@ taglib prefix="c" uri="http://java.sun.com/jstl/core" %>
<html>
<head>
<title>c:set test</title>
</head>
<body>
C:Set Test
<br>
<jsp:useBean id="n" class="java.util.Hashtable" />
<c:set value="name" target="${n}" property="Hello World"/>
name values is:
<c

ut value="${n.name}"/>

</body>
</html>
============
I except the out Hello World, But its not printing.
Any help?
SR

20 years ago

Web Component Certification (OCEJWCD)

latest webapps dtd

Looks like now they changed to schema file.
http://java.sun.com/xml/ns/j2ee web-app_2_4.xsd
SR

20 years ago

Web Component Certification (OCEJWCD)

Is deployment descriptor is requestion componet to access servlet

some more info:
after adding servlet mapping like this in web.xml file able to access the servlet.
web.xml file:
<servlet>
<servlet-name>TestingServlet</servlet-name>
<servlet-class>TestingServlet</servlet-class>
</servlet>

<servlet-mapping>
<servlet-name>TestingServlet</servlet-name>
<url-pattern>/servlet/TestingServlet</url-pattern>
</servlet-mapping>
URL to access:
http://localhost:8080/scwd/servlet/TestingServlet
SR

20 years ago

Web Component Certification (OCEJWCD)

Is deployment descriptor is requestion componet to access servlet

Hi,
Do I need to create servlet definition in web.xml file. My understating is optional,
With tomcat 5 I was not able to access the sample servlet.
I have sample servlet in webapps/scwd/WEB-INF/class directory (No package name used)
I am using the following URL, its giving me the error message.
http://localhost:8080/scwd/servlet/TestingServlet

reference URL:
http://www.informit.com/isapi/product_id~%7BEFDC83A5-06F4-4823-9A80-3248B6CF0DDD%7D/element_id~%7BBB84D3D2-26A7-4F94-B468-CCB0F2389A42%7D/st~%7B94C03A97-1188-4875-8A06-17743BA224B7%7D/content/articlex.asp
Is any thing changed in new specification?
SR

20 years ago

Web Component Certification (OCEJWCD)

latest webapps dtd

Hi,
What is the latest DTD file for java web application. I am using this URL is this correct one?
http://java.sun.com/dtd/web-app_2_3.dtd
SR

20 years ago

Web Component Certification (OCEJWCD)

string to float conversion round off problem

Using BigDecimal I was able to print the value, how will I store this in float varible.
Code:
String val = "149368.87";

java.math.BigDecimal b = new java.math.BigDecimal(val);

System.out.println(NumberFormat.getInstance().format(b));
output:
149,368.87
SR

20 years ago

Programmer Certification (OCPJP)