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What is the difference between relative and absolute url?
Karan
- Sep 27th, 2011
As there seems to still be confusion about the difference between relative and absolute urls, I thought I'd post a little information and a reference link for everyone. An url that is ABSOLUTE shows ...
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How to disable the expression language in a jsp?
Navdeep
- Aug 19th, 2011
We can use isEliIgnored property or we can disable by using below code..
Code- <jsp-config>
- <jsp-property-group>
- <url-pattern>*.jsp</url-pattern>
- <el-ignored>true</el-ignored>
- </jsp-property-group
- </jsp-config>
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Exception Handling in JSP
How will you handle the exception without sending to error page? How will you set a message detail to the exception object?
delindia
- Jan 3rd, 2012
Example:
The exception will be thrown inside the catch:
The exception is : ${catchException}
There is an exception: ${catchException.message}
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How do you call stored procedures from JSP
delindia
- Jan 3rd, 2012
We can call stored producedure using sql tags in jstl "java5 For example, calling a stored procedure that returns a result set: exec ExampleProcLoadExample ? ...
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Transfer data in JSP
How to transfer data over multiple pages?
sampra
- Mar 28th, 2012
We can set attribute in application session or request attribute.here page wont be use ful bcz scope of page is same page only
sampra
- Mar 13th, 2012
1.page
2.session
3.request.
4.application
using these scoped variables we can translate data from one resource to another
ex: request.setAttribute("key","value");
Object o=getAttribute("key"); -
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Jasper Exception in JSP
When and why jasperException occurs?
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Install Tomact
How to install tomact?
ravitejareddy
- Aug 18th, 2011
Download latest Apache tomcat and install. and set the path for that in environment variables. and deploy the project and stat up the server.
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Can we use main method inside JSP? Why?
ashish
- Aug 5th, 2011
Can someone tell me...how a servlet container execute init(),service() and destroy() method in a sequential manner ?
is it true that a servlet container itself contains a main() method which call these methods ?
thanks in advance...mullangi13
- Jul 29th, 2008
We can use main method in Jsp/servlet, but there is no use. This main() method will not execute throughout the life cycle. Then why should we need to use.Generally these JSP/Servlets are server side t...
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When many Users are browsing the same application at the same time and they click the "Submit" button will many objects be created for each and every User?
umar farooq
- Jul 24th, 2011
NO, There will be one single instance of the servlet in the web-container ,when request arrives to the server a thread will be created rather creating the object. so that multiple request will have ...
vinaymudgil007
- Mar 31st, 2011
Single servlet object will be loaded in memory and one thread per request would be created by the container to serve those requests.Thanks,Vinay
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To show money format on the JSP page we use __________ class
Skill/Topic: Programming ConstructsA) AirthmaticFormat B) CurrencyFormat C) NumberFormat D) StringBuffer
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A] Is the response.sendRedirect ends the existing session?B] If I logged in to a site ( say a.com) & then in same browser window I type the url for another site (say b.com), then does my session gets ended on first site ( a. com ) ?
charankk
- Apr 30th, 2008
Hi Prasanth, The case is differnt here.Assume you have opened gmail.com and logged in... session will be created.Then you have tried to replace the url as yahoo.com, here the browser will identify the...
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JSP Page Object Request
In order to access the request object from a JSP page? Which step you must complete among the following:a. call the getRequest method of the JSP page.b. Use the getServletConfig method of the JSP page, then call the getRequest method of the ServletConfig object.c. There is never a good reason to access the request object from a JSP page.d. It is an implicitly defined variable.
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What is instance pooling ?
Deepak agnihotri
- Nov 30th, 2010
To implement single thread model container use instance pooling in this approach several instances of same servlet are stored in a pool and the instances are allocated to the incoming client requests,...
Kumarakuru
- Feb 10th, 2006
It is one of the service provided by EJB Container. It is pool of instances, which is ready to use. Instance pooling reduces the number of component instances, and therefore resources, needed to servi...
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How do you use "synchronized" blocks?
Is there other way to prevent next thread to access the resource with out using "synchronized" blocks?
Deepak agnihotri
- Nov 30th, 2010
We can use thread local variable as an alternative to synchronization.
Nishant jain
- May 7th, 2006
there is a way to do so, but its a bit complex and has be done by a programmer.Well u can implement the semaphore architecture using the the semaphore variable.this can be done as following:take a boo...
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Plotting graphics in JSP
How to generate a graph using real time data in jsp.
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What is the difference between servletcontext and pagecontext?
ramu.maloth5
- Aug 26th, 2010
ServlrtContext: one web Application have only one ServletContext object.Pagecontext: every page have pagecontext object.
ishar.Gsingh
- Dec 20th, 2009
servletcontext ==> One per webapp. Accessible by all Jsp's servlets across the webapplication.pagecontext ==> Is to retrieve the attributes from all of scope. One use this object when you d...
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What is the difference between a uri and a url?
rishimasurkar
- Jul 6th, 2010
A URI identifies a resource either by location, or a name, or both. Whereas A URL is a specialization of URI that defines the network location of a specific resource.
jpjitendrapal
- Oct 19th, 2008
The idea is that a URL is a mechanical link to a resource's location, where it can be downloaded. For this reason, a URL contains a hostname and a local part, all of which can be resolved anywh...
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What is the different between _jspInit() and jspInit()?
Vikas.Barsainya
- May 15th, 2010
Here is the skeleton of HttpJspBase class which is developed by tomcat developers.You might have a clue from this for all related answers. public abstract class HttpJspBase extends HttpServlet { ...
shunmugababu
- Nov 26th, 2008
You cannot override _jspInit() whereas it is possible to override jspInit().
JSP Interview Questions
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