Servlets :: J2EE Without Particular Framework

Jul 24, 2014

Is it possible to develop huge enterprise applications without any particular framework?

Just with JSP, Servlets and Javascript/Ajax stuffs?

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Servlets :: URL Routing Without Using A Framework

Feb 18, 2015

I am seen that ASP.NET apps have a handy feature called URL Routing. How will one implement this in Java without the use of heavy frameworks like Spring MVC ? How do you even begin writing a URL Router if there isn't anything available?

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Servlets :: Which Framework To Choose

Aug 11, 2014

I have good knowledge of servlet,jsp. I've also worked on mvc pattern and now looking to learn a web framework but i'm not sure which to choose between spring mvc OR struts.Should i first do struts and then go for spring or can i choose spring directly?

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Servlets :: Designing A Secure / Standard Login System In J2EE

Jul 29, 2014

Things in mind while designing a secure, standard login system in J2EE . Code snippets ....

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J2EE Web Application - Handling Critical Object If It Is Down

Jan 28, 2014

In our J2EE web application we have so many critical functionality which is handled by various component. Say if one of the critical object or the respective critical system is down. How we can serve the request and still get the response from those systems? How this can be handled technically through code? I know we can go for service virtualization and create a system which will emulate the behavior of critical object or system. But for that we need to use the respective tools which is quite costly. How the same can be handled using java code , whether we can create a clone of that critical object and still serve the request even though the original critical object is down or can we create a proxy of that critical object? How we can handle it in java through code?

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How To Connect J2ee Application To Biometric Fingerprint Device

Mar 27, 2015

How can I connect my j2ee application to a fingerprint reader...

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Monitoring Performance Of J2ee Application Using Open Source Infrared Tool?

Jun 13, 2013

I am using infrared for monitoring performance of j2ee web application(using hibernate and spring),deploying on tomcat 7.0.23 and jdk 1.6.17.here infrared shows only http layer not sql and jsp layer.

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Enterprise JavaBeans :: J2EE Application Architecture With Respect To HTML5 And Adobe Flex

Mar 18, 2013

I would like to know the J2EE architectural explanation with respect to HTML5 and Adobe Flex technologies. It is just like knowing over all J2EE architectural aspects and how HTML5 and Adobe Flex technologies are used to satisfy those aspects in order act as client side components.

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Difference Between Multithreading With / Without Executor Framework

Mar 16, 2015

Difference between multithreading with and without executor framework.

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Connecting Library And Swing Framework

Nov 8, 2014

May I know what it means when you say "What is the OOP mechanism is used to link the library and the swing framework?"

What are the examples of OOP mechanisms? Is there a website explaining this in detail?

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On Play Framework Connecting To Eclipse

Nov 6, 2014

Question 1: Upon importing the Play Framework content in Eclipse there's a default codes as localhost:9000 is immediately routed to play framework website controllers, checked and running fine test, checked and running fine conf, checked and running fine the problem is the views under app on all youtube tutorials and other websites, the contents of views is editable but when my brother tried to, he cant edit it

Question 2: Is there an easy tutorial on POST, PUT, GET, and DELETE for eclipse-playframework

Question 3:my brother is using POSTMAN - RESTCLIENT to test his HTTP METHODS (post, put, get, and delete)and is there a tutorial where they also test the HTTP METHODS using POSTMAN?

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Java Exception Handler Framework

Dec 30, 2014

I have a Query, what is the exception handling framework used my project, but we actually did not use any framework ,we used just normal try catch and throws, so what is the exception handling framework, when I browsed through net I found something like JEHA, so is there any other framework available.

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Populate Data In JSP Page - Collection Framework

Feb 20, 2015

I have one table in DB i.e. emp. I want to perform all CRUD (insertion,selection,deletion,updation) in DB. Now i want to populate that data in jsp page. Which Collection framework?

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Which Collection Framework Class Will Delete Data

Jun 19, 2014

I got a question , which collection framework class will delete data if we call "get".

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Implement HashMap Put And Get Methods Without Using Java Collection Framework?

Feb 11, 2014

How to implement HashMap put and get methods without using Java Collection framework?

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JSP :: Would Template Based Framework Generates A Lot Of Request Traffic?

Nov 29, 2014

If I have a web page with a lot of data to show, say a lot of tables and graphics, would using non JSP based frameworks result in a lot more individual AJAX requests? For example if the page have 5 tables, with JSP the whole page will be returned to the browser with data for all 5 tables already. But if this is a pure HTML / Javascript based view, then we need to have each of the 5 tables to make individual AJAX requests in order to render the page. Is this indeed the down side for not using JSP?

The reason I'm asking is because I'm considering moving away from JSP to a template based framework such as Thymeleaf or Freemarker.

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EJB / EE :: J2EE Sending Message / Email From Registered User To Another User

Mar 3, 2015

I am a first-timer using J2EE and here on coderanch.com and wanted to make a Simple Email-like System which a Registered User can Send Message/Email to another Registered User. how to do it. I have already my register/login process done but I'm stuck on how to make the Email. And I have an sample Bootstrap for my UserInterface which I want to use.

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Servlets :: How To Get URL Of JSP Page

May 20, 2014

I am trying to use iText to create a PDF document. I found a nice tutorial online but one thing stumps me. How do I get the URL of the JSP page that contains the content? Since this will not be static, I don't want to hard code this. I am sure this is something simple but I am fairly new to servlets and JSP.

String File_To_Convert = "test.htm";

How do I get the url of the JSP page?

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Servlets :: Possible To Use Annotations?

Aug 10, 2014

Is it permitted or possible to use annotations on classic servlets?

E.g.:

import javax.servlet.*;
import javax.servlet.http.*;
import java.io.*;
import java.util.*;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;

[Code] ....

I tried to visit my webapp with /appinfo appended after the context url but I get a 404 and I see no errors in the GlassFish4 log.

My project is using JSF 2.x with the viewservlet mapped on *.xhtml and it is using Spring Beans as well (using the Spring Context Loader), mapped to /rest/*. Do I need to map something else?

I can only get this servlet working without annotations but only using the old web.xml way.

I don't know what I need to do to get my servlet working with annotations.

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Servlets :: Not Mapping To URL

Feb 4, 2015

I have a servlet that is not mapping to my URL:

<servlet-mapping>
<servlet-name>view</servlet-name>
<url-pattern>/View/*</url-pattern>
</servlet-mapping>

When I try to call the Servlet from a JSP:

<a href="/View/viewFlow?V1">V1</a>

The resulting link is [URL].... It's bypassing the project name. The link should be [URL]...

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Servlets :: How To Map Website URL

Nov 25, 2014

I have my mapping as below

<servlet>
<servlet-name>main</servlet-name>
<servlet-class>co.edureka.controllers.MainController</servlet-class>
</servlet>
<servlet-mapping>
<servlet-name>main</servlet-name>
<url-pattern>/</url-pattern>
</servlet-mapping>

So that I can map the first request coming say www.xyz.net to my first page , it does the work but some of my css and images is not getting displayed .

So I did as below

<servlet>
<servlet-name>main</servlet-name>
<servlet-class>co.edureka.controllers.MainController</servlet-class>
</servlet>
<servlet-mapping>
<servlet-name>main</servlet-name>
<url-pattern>/first</url-pattern>
</servlet-mapping>

By doing this my css and images get displayed and everything works fine.

But the problem is I want to display my first page as user puts the url.

I am putting my jsp pages in WEB-INF/jsps , I am not putting it directly under WEB-CONTENT directory.

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Servlets :: Need To Set Up A Server

Dec 20, 2014

I am new to Servlets and came across it in Head First Java 2nd Edition. I wrote the servlet code. I don't know how to run it. Do I need to set up a server?

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Servlets :: Sessions Within Same War

Aug 14, 2014

Suppose we have two servlets runing inside same war on same server. When user access servlet A and create a session, he then open another tab or browser to access servlet B (session created by servlet A still exist). Inside servlet B, does

request.getSession()

return the session created by servlet A ?

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Servlets :: How To Use Session

Apr 16, 2014

I'm trying to go back to basic and strengthen some of my foundation. I'm wondering what kind of data would be appropriate to be stored inside a session? My app is a web app where all the users are the employee of a company. So it's an web-based app that keeps track of stock movements, purchasing and sales order (standard distributor company). The web app interacts strictly with employees, so no public facing app (yes, that's right, no shopping cart). So, in this kind of web app, what kind of data that by storing it to session.

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Servlets :: Calling JSP Page

Mar 25, 2014

I am calling a jsp page from my servlet using the requestdispatcher.forward(myjsp.jsp) method. myjsp.jsp is creating a new thread which is parallely processing along with the servlet. The issue is that the jsp page is not displayed until the servlet finishes its execution, although the new thread is created by jsp and is executing in parallel. How do we have the jsp page displayed even when the servlet is executing.

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Servlets :: Redirect After Login

Jan 30, 2014

I have a secured Struts application in WebSphere that uses FORM j_security_check for authentication.There is also a Post Logon "filter" defined which runs some code after a login is processed.The extract from web.xml showing the login configuration and filter is as follows:

<login-config>
<auth-method>FORM</auth-method>
<realm-name>MyRealm</realm-name>
<form-login-config>
<form-login-page>/login.html</form-login-page>
<form-error-page>/error.html</form-error-page>

[code]....

If a user isn't logged into the application and they try to access one of the secured servlets, for example quotes.do, they are directed to the login page to enter their information.If they login successfully, they are then directed to quotes.do, rather than the default "welcome" page. Is there a setting in the web.xml or the post logon filter where I can force j_security_check to ALWAYS go to the default welcome page after a successful login?

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