Java EE Tutorial- Cookbook 1

8/2/2019 Java EE Tutorial- Cookbook 1

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CauchoHome|ContactUs|CauchoBlog|Wiki|Applica8onServer

JavaEEServletTutorial

First Cookbook- Getting started with Model 2: Servlet and JSP

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RESIN PRO Web Profile Health System Cloud Support

Open%Source,%Reliable%and%Lightweight%Java%EE%Applica;on%Server%

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Thiscookbook in the Java EE Servlet tutorial covers

building a simple listing in JSP and Servlets.This tutorial is part of Java EE Tutorial covering

JSP_2.2, and Servlets 3.0.

The WIKI and step by step detailed instructions livehere:

http://wiki4.caucho.com/Building_a_simple_listing_in_JSP

Cookbook:IntrotoSerlvetsandJSP

Thursday, May 3, 12
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VeryliEleknowledgeofHTML,JavaandJSPisassumed

HTMLandJavanotcoveredlength,butpointersintherightdirec8on

FocusisJavaServletsandJSP(JavaServerPages)

UsewhateverIDyouwouldlike,butdirec8onsfocusonclipse

Abouttutorial

Thursday, May 3, 12
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Appyouarebuilding

Sorting

Remove

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Best?Nonotreally,bestisIntelliJ

clipseisfreeandsupportsJavawell

NetBeansandJDeveloperarefromOracle,theyaregoodtoo

Sidebar:Whyclipse?

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Runningtutorialappinclipse

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Javaiswriteoncerunanywhere,soyoucandevelopJavaanywhere

MostcompaniesdeployJavaonsomeflavorofLinux

YoucanuseWindowsfordevelopment,but...

Probablyagoodideatogetfamiliarwithproduc8ondeploymentenvironmentanyway

IfyouareaWindowsorOSXusers,IsuggestinstallingUbuntu(hEp://

www.ubuntu.com/)orCentOSonVMWareorVirtualBoxandmakingthatyourmaindevelopmentenvironment

YoucanmakethistutorialworkforyouonOSXandWindows,butmightbebeEerjust

togowithafric8onlessapproach.Thiswayyoucanfocusontheconceptsinsteadof

theconfigura8onwoes

Clouddeploymentforthemostpart==Linux

Windows?TryLinux...

Thursday, May 3, 12
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1 Optional: Getting started Eclipse Java EE IDE 2 Resources

3 What is going to be in the project 4 Creating model and Repository objects for books 4.1 Book model class 4.2 Are you new to Java? 4.3 BookRepository interface

5 Servlets / JSP 5.1 Servlet Background 5.2 Creating your first Servlet

5.2.1 BookListServlet listing 5.2.2 Java EE / Servlets scopes (page, request, conversation, session, application) 6 Creating your first JSP

6.1 Templates/JSTL versus Java scriptlets 6.1.1 /WEB-INF/pages/book-list.jsp listing 6.1.2 HTML background 6.1.3 JSTL c:forEach

7 Setting up CDI

7.1 CDI META-INF/beans.xml 8 Deploying with Eclipse 9 Deploying from the command line 10 Cookbooks and Tutorials

Outline

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http://www.caucho.com/http://www.caucho.com/about/contact/http://wiki4.caucho.com/Building_a_simple_listing_in_JSP#Cookbooks_and_Tutorialshttp://wiki4.caucho.com/Building_a_simple_listing_in_JSP#Deploying_from_the_command_linehttp://wiki4.caucho.com/Building_a_simple_listing_in_JSP#Deploying_with_Eclipsehttp://wiki4.caucho.com/Building_a_simple_listing_in_JSP#CDI_META-INF.2Fbeans.xmlhttp://wiki4.caucho.com/Building_a_simple_listing_in_JSP#Setting_up_CDIhttp://wiki4.caucho.com/Building_a_simple_listing_in_JSP#Setting_up_CDIhttp://wiki4.caucho.com/Building_a_simple_listing_in_JSP#JSTL_c:forEachhttp://wiki4.caucho.com/Building_a_simple_listing_in_JSP#HTML_backgroundhttp://wiki4.caucho.com/Building_a_simple_listing_in_JSP#.2FWEB-INF.2Fpages.2Fbook-list.jsp_listinghttp://wiki4.caucho.com/Building_a_simple_listing_in_JSP#Templates.2FJSTL_versus_Java_scriptletshttp://wiki4.caucho.com/Building_a_simple_listing_in_JSP#Creating_your_first_JSPhttp://wiki4.caucho.com/Building_a_simple_listing_in_JSP#Creating_your_first_JSPhttp://wiki4.caucho.com/Building_a_simple_listing_in_JSP#Java_EE_.2F_Servlets_scopes_.28page.2C_request.2C_conversation.2C_session.2C_application.29http://wiki4.caucho.com/Building_a_simple_listing_in_JSP#BookListServlet_listinghttp://wiki4.caucho.com/Building_a_simple_listing_in_JSP#Creating_your_first_Servlethttp://wiki4.caucho.com/Building_a_simple_listing_in_JSP#Servlet_Backgroundhttp://wiki4.caucho.com/Building_a_simple_listing_in_JSP#Servlets_.2F_JSPhttp://wiki4.caucho.com/Building_a_simple_listing_in_JSP#Cookbooks_and_Tutorialshttp://wiki4.caucho.com/Building_a_simple_listing_in_JSP#Cookbooks_and_Tutorialshttp://wiki4.caucho.com/Building_a_simple_listing_in_JSP#Deploying_from_the_command_linehttp://wiki4.caucho.com/Building_a_simple_listing_in_JSP#Deploying_from_the_command_linehttp://wiki4.caucho.com/Building_a_simple_listing_in_JSP#Deploying_with_Eclipsehttp://wiki4.caucho.com/Building_a_simple_listing_in_JSP#Deploying_with_Eclipsehttp://wiki4.caucho.com/Building_a_simple_listing_in_JSP#CDI_META-INF.2Fbeans.xmlhttp://wiki4.caucho.com/Building_a_simple_listing_in_JSP#CDI_META-INF.2Fbeans.xmlhttp://wiki4.caucho.com/Building_a_simple_listing_in_JSP#Setting_up_CDIhttp://wiki4.caucho.com/Building_a_simple_listing_in_JSP#Setting_up_CDIhttp://wiki4.caucho.com/Building_a_simple_listing_in_JSP#JSTL_c:forEachhttp://wiki4.caucho.com/Building_a_simple_listing_in_JSP#JSTL_c:forEachhttp://wiki4.caucho.com/Building_a_simple_listing_in_JSP#HTML_backgroundhttp://wiki4.caucho.com/Building_a_simple_listing_in_JSP#HTML_backgroundhttp://wiki4.caucho.com/Building_a_simple_listing_in_JSP#.2FWEB-INF.2Fpages.2Fbook-list.jsp_listinghttp://wiki4.caucho.com/Building_a_simple_listing_in_JSP#.2FWEB-INF.2Fpages.2Fbook-list.jsp_listinghttp://wiki4.caucho.com/Building_a_simple_listing_in_JSP#Templates.2FJSTL_versus_Java_scriptletshttp://wiki4.caucho.com/Building_a_simple_listing_in_JSP#Templates.2FJSTL_versus_Java_scriptletshttp://wiki4.caucho.com/Building_a_simple_listing_in_JSP#Creating_your_first_JSPhttp://wiki4.caucho.com/Building_a_simple_listing_in_JSP#Creating_your_first_JSPhttp://wiki4.caucho.com/Building_a_simple_listing_in_JSP#Java_EE_.2F_Servlets_scopes_.28page.2C_request.2C_conversation.2C_session.2C_application.29http://wiki4.caucho.com/Building_a_simple_listing_in_JSP#Java_EE_.2F_Servlets_scopes_.28page.2C_request.2C_conversation.2C_session.2C_application.29http://wiki4.caucho.com/Building_a_simple_listing_in_JSP#BookListServlet_listinghttp://wiki4.caucho.com/Building_a_simple_listing_in_JSP#BookListServlet_listinghttp://wiki4.caucho.com/Building_a_simple_listing_in_JSP#Creating_your_first_Servlethttp://wiki4.caucho.com/Building_a_simple_listing_in_JSP#Creating_your_first_Servlethttp://wiki4.caucho.com/Building_a_simple_listing_in_JSP#Servlet_Backgroundhttp://wiki4.caucho.com/Building_a_simple_listing_in_JSP#Servlet_Backgroundhttp://wiki4.caucho.com/Building_a_simple_listing_in_JSP#Servlets_.2F_JSPhttp://wiki4.caucho.com/Building_a_simple_listing_in_JSP#Servlets_.2F_JSPhttp://wiki4.caucho.com/Building_a_simple_listing_in_JSP#BookRepository_interfacehttp://wiki4.caucho.com/Building_a_simple_listing_in_JSP#BookRepository_interfacehttp://wiki4.caucho.com/Building_a_simple_listing_in_JSP#Are_you_new_to_Java.3Fhttp://wiki4.caucho.com/Building_a_simple_listing_in_JSP#Are_you_new_to_Java.3Fhttp://wiki4.caucho.com/Building_a_simple_listing_in_JSP#Book_model_classhttp://wiki4.caucho.com/Building_a_simple_listing_in_JSP#Book_model_classhttp://wiki4.caucho.com/Building_a_simple_listing_in_JSP#Creating_model_and_Repository_objects_for_bookshttp://wiki4.caucho.com/Building_a_simple_listing_in_JSP#Creating_model_and_Repository_objects_for_bookshttp://wiki4.caucho.com/Building_a_simple_listing_in_JSP#What_is_going_to_be_in_the_projecthttp://wiki4.caucho.com/Building_a_simple_listing_in_JSP#What_is_going_to_be_in_the_projecthttp://wiki4.caucho.com/Building_a_simple_listing_in_JSP#Resourceshttp://wiki4.caucho.com/Building_a_simple_listing_in_JSP#Resourceshttp://wiki4.caucho.com/Building_a_simple_listing_in_JSP#Optional:_Getting_started_Eclipse_Java_EE_IDEhttp://wiki4.caucho.com/Building_a_simple_listing_in_JSP#Optional:_Getting_started_Eclipse_Java_EE_IDEhttp://www.caucho.com/resin-application-server/http://www.caucho.com/resin-application-server/http://wiki4.caucho.com/Main_Pagehttp://wiki4.caucho.com/Main_Pagehttp://blog.caucho.com/http://blog.caucho.com/http://www.caucho.com/about/contact/http://www.caucho.com/about/contact/http://www.caucho.com/http://www.caucho.com/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/


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First go here to get Eclipse for Java EE: Install Guide for Eclipse for Java EE Indigo or higher.

Screenshots to follows, but here is the basic steps to installing Eclipse and Java EE development

environment in one go

Using Eclipse Indigo or higherInstall Resin (lightweight, fast, easy to use Java EE 6 Web Profile server) plugin:

1. Go to File menu -> New Project -> Dynamic Web Project

2. In New Dynamic Web Project Dialog-> New Runtime...

3. In New Runtime Dialog -> Download Additional Server Adapters -> Select Resin (Java EE Web Profile)

4.0.x

4. (Click Next and Ok until it installs Resin runtime)

5. (Eclipse needs to restart)

Setup new Web Project in Eclipse

1. File -> New Project -> Dynamic Web Project

2. In New Dynamic Web Project Dialog-> New Runtime...->Select Resin->Check create local server checkbox

3. Step 2 of New Runtime...->Click Download and Install (you only have to do this once)

4. Fill out project name etc. (bookstore).5. (Click Next and Ok until you are done)

UsingclipsetosetupWebProject

Thursday, May 3, 12
http://www.eclipse.org/downloads/packages/eclipse-ide-java-ee-developers/indigosr2http://www.eclipse.org/downloads/packages/eclipse-ide-java-ee-developers/indigosr2http://www.caucho.com/resin-application-server/http://www.caucho.com/resin-application-server/http://wiki4.caucho.com/Main_Pagehttp://wiki4.caucho.com/Main_Pagehttp://blog.caucho.com/http://blog.caucho.com/http://www.caucho.com/about/contact/http://www.caucho.com/about/contact/http://www.caucho.com/http://www.caucho.com/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/


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GotoFilemenu->NewProject->DynamicWebProject

InNewDynamicWebProjectDialog->NewRun8me...

InstallJava6WebProfile

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Crea8nganewwebproject ClickOKandFinishandRestarttorestartEclipse

Crea8nganewWebProject

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Crea8ngasimpleBooklis8ngforourbookstore CreateanewJavaclassas

follows:

clipse:RightClick"Java

Resources"inProjectxplorer->New->Class->Package

com.bookstore->ClassName->

Book(Thatisthelast8meIwill

tellyouhowtocreateaclassin

clipse.)

Add8tle,descrip8on,price,

pubDateandidproper8es,andthetoStringandcloneMe

methodsasfollows:

Thursday, May 3, 12
http://www.caucho.com/http://www.caucho.com/resin-application-server/http://www.caucho.com/resin-application-server/http://wiki4.caucho.com/Main_Pagehttp://wiki4.caucho.com/Main_Pagehttp://blog.caucho.com/http://blog.caucho.com/http://www.caucho.com/about/contact/http://www.caucho.com/about/contact/http://www.caucho.com/http://www.caucho.com/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/


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AreyounewtoJava?

IfyouarenewtoJavaandtheBookclassseemsforeigntoyou,

ReaduponJavaabitOfficialJavatutorial.

Readthefirstthreetrails(Ge>ngStarted,LearningtheJavaLanguageandEssenBalJavaClasses),

SkipaheadtoJavaeans.Skimmingisok.

Ifyouhaveprogrammedbefore,mostthingsyouwillpickuponyourown.

Thencomebackhere:)

Reminder:ThemethodspublicStringgetId()andpublicvoidsetId(Stringid)woulddefineapropertycalledid

Thursday, May 3, 12
http://www.caucho.com/http://www.caucho.com/about/contact/http://blog.caucho.com/http://wiki4.caucho.com/Main_Pagehttp://www.caucho.com/resin-application-server/http://docs.oracle.com/javase/tutorial/javabeans/index.htmlhttp://docs.oracle.com/javase/tutorial/javabeans/index.htmlhttp://docs.oracle.com/javase/tutorial/javabeans/index.htmlhttp://docs.oracle.com/javase/tutorial/http://docs.oracle.com/javase/tutorial/http://www.caucho.com/resin-application-server/http://www.caucho.com/resin-application-server/http://wiki4.caucho.com/Main_Pagehttp://wiki4.caucho.com/Main_Pagehttp://blog.caucho.com/http://blog.caucho.com/http://www.caucho.com/about/contact/http://www.caucho.com/about/contact/http://www.caucho.com/http://www.caucho.com/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/


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RepositoryInterface

FirststepintutorialnotgoingtoactuallytalktoadatabaseoruseJDBC

Fornow,justusingcollec8onAPI

Repositoryobjectencapsulateshowanobjectgetspersisted,queriedandupdated(CRUDopera8ons)

LetsdefineaninterfaceforourCRUDopera8ons

LaterweuseJDBC/RDBMS(MySQL),JTA/RDBMS,JCache,MongoDB,etc.insteadofcollec8onAPI

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BookRepository(DAOlikeobject) clipse:RightClick"JavaResources"inProjectxplorer->New->Interface->Package

=com.bookstore->ClassName=Book->ClickFinish

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BookRepositoryImpl1of4 ActualBookRepositoryImpljustusesJavacollec8ontostoreinmemory(skimdont

read)Setsupsometestdata

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BookRepositoryImpl2of4 Helpermethodstodefinetestdata,addmethod

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BookRepositoryImpl3of4 Interfaceimplementa8onsusingcollec8onsAPI

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BookRepositoryImpl4of4 listBooksandremoveBooks

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BookRepositoryImplwrapup

ThisBookRepositoryImplreallybasicclass.

Largelybasedonthecollec8onsAPI

Youcanfindoutmoreinforma8onabouttheJavacollec8onsAPIatthistutorialtrail.

Afulldiscussionofcollec8onAPIoutofscopeforcookbook

JDBCcookbookcomingupinthistutorialseries

Thursday, May 3, 12
http://www.caucho.com/http://www.caucho.com/about/contact/http://blog.caucho.com/http://wiki4.caucho.com/Main_Pagehttp://www.caucho.com/resin-application-server/http://docs.oracle.com/javase/tutorial/collections/index.htmlhttp://docs.oracle.com/javase/tutorial/collections/index.htmlhttp://docs.oracle.com/javase/tutorial/collections/index.htmlhttp://docs.oracle.com/javase/tutorial/collections/index.htmlhttp://www.caucho.com/resin-application-server/http://www.caucho.com/resin-application-server/http://wiki4.caucho.com/Main_Pagehttp://wiki4.caucho.com/Main_Pagehttp://blog.caucho.com/http://blog.caucho.com/http://www.caucho.com/about/contact/http://www.caucho.com/about/contact/http://www.caucho.com/http://www.caucho.com/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/


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@Applica8onScoped

OneinteresBngthingisBookRepositoryImpluses@Applica2onScopedannotaBon

AnnotaBonsallowyoutoaddmeta-datatoJavaobjects.(TolearnmoreseethisannotaBonstutorial)

Applica2onScopedspecifiesabeanisapplicaBonscoped

Scopingdefinesalifecycle

howlonganobjectwillbearound

ApplicaBonScopedmeansitwillbearoundforthecompletelifecycleoftheWebApplicaBon

This annotations has slightly different meanings depending on whether it is used with EJBs or Servlets. This annotation is part of the CDI supportadded to Java EE 6 to handle Java Dependency Injection. To learn more about CDI go see this tutorial Java Dependency Injection and this one part 2

both written by the same author that is writing this tutorial now.:)

Thursday, May 3, 12
http://www.caucho.com/http://www.caucho.com/about/contact/http://blog.caucho.com/http://wiki4.caucho.com/Main_Pagehttp://www.caucho.com/resin-application-server/http://www.caucho.com/resin-application-server/http://docs.oracle.com/javase/tutorial/java/javaOO/annotations.htmlhttp://java.dzone.com/articles/cdi-di-p2http://java.dzone.com/articles/cdi-di-p2http://java.dzone.com/articles/cdi-di-p1http://java.dzone.com/articles/cdi-di-p1http://docs.oracle.com/javase/tutorial/java/javaOO/annotations.htmlhttp://docs.oracle.com/javase/tutorial/java/javaOO/annotations.htmlhttp://www.caucho.com/resin-application-server/http://www.caucho.com/resin-application-server/http://wiki4.caucho.com/Main_Pagehttp://wiki4.caucho.com/Main_Pagehttp://blog.caucho.com/http://blog.caucho.com/http://www.caucho.com/about/contact/http://www.caucho.com/about/contact/http://www.caucho.com/http://www.caucho.com/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/


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@Applica8onScoped

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Modeldone,nowcontroller

Nowthatwehaveamodel

ook,ookRepository

Letsdefineourwebcontroller

Servletcontroller

andview

JSPs

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ServletBackground

AservletisaJavaclassthathandlesHTTPrequests

AJavawebapplica8onconsistsofoneormoreservletbundledtogetherwithanyJSPsandJavaclassesitneedsinto

awarfile(WebApplica8onArchivefile).

Servletsruninsideofacontainer(likeCaucho'sResin)

nduserstypicallyuseaJavaWebApplica8onthroughawebbrowserlikeAppleSafari,GoogleChrome,MozillaFireFoxor

Internetxplorer

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Crea8ngyourfirstServlet clipse:RightClick"JavaResources"inProjectxplorer->New->Servlet->Package=

com.bookstore.web->ClassName=BookListServlet->ClickNext->RemoveURL

mapping,createnewmapping/book/

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Crea8ngyourfirstServlet(part2)

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BookListServlet

Note:Thisapplica8onusestheRSTstyleURLmappings

URLsthatendin/implyyouareworkingwithalist

(likeadirectoryoffiles).

URI/book/impliesacollecBonofbooks

Perfectsincewewanttoshowalistofbooks

ModifygeneratedServlettoonlyhandlethedoGetmethod

ChangedoGetmethodtoforwardtoaJSPthatwehavenotcreatedyetthatlivesinWB-INF

Thursday, May 3, 12

B kLi tS l t
http://www.caucho.com/http://www.caucho.com/about/contact/http://blog.caucho.com/http://wiki4.caucho.com/Main_Pagehttp://www.caucho.com/resin-application-server/http://en.wikipedia.org/wiki/Representational_state_transferhttp://en.wikipedia.org/wiki/Representational_state_transferhttp://www.caucho.com/resin-application-server/http://www.caucho.com/resin-application-server/http://wiki4.caucho.com/Main_Pagehttp://wiki4.caucho.com/Main_Pagehttp://blog.caucho.com/http://blog.caucho.com/http://www.caucho.com/about/contact/http://www.caucho.com/about/contact/http://www.caucho.com/http://www.caucho.com/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/


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BookListServlet LooksupbooksusingbookRepo(injectedwith@InjectCDI)

Thenforwardtobook-list.jsptorenderbooklis8ng

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WhyJSPisinWB-INF

WB-INFisametadirectoryfolderforwarfiles.

JSPsinWB-INFfoldercanneverbeloadeddirectlyfromabrowser

ThisallowsustoforceallJSPstofirstgothroughourServlet8er(controllers)whichisessen8alforamodel2architecture

(aformofMVCtailoredforHTTPapplica8ons) ,

Weusemodel2throughoutthetutorial

ConsiderpungJSPsinWB-INFabestprac8ce.

Thursday, May 3, 12
http://www.caucho.com/http://www.caucho.com/about/contact/http://blog.caucho.com/http://wiki4.caucho.com/Main_Pagehttp://www.caucho.com/resin-application-server/http://en.wikipedia.org/wiki/Model_2http://en.wikipedia.org/wiki/Model_2http://en.wikipedia.org/wiki/Model_2http://en.wikipedia.org/wiki/Model_2http://en.wikipedia.org/wiki/Model_2http://www.caucho.com/resin-application-server/http://www.caucho.com/resin-application-server/http://wiki4.caucho.com/Main_Pagehttp://wiki4.caucho.com/Main_Pagehttp://blog.caucho.com/http://blog.caucho.com/http://www.caucho.com/about/contact/http://www.caucho.com/about/contact/http://www.caucho.com/http://www.caucho.com/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/


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@WebServletannota8on(BookListServlet) @WebServlet("/book/")allowustomapthisServlettohandlerequestsfortheURI/

book/

@WebServletannota8onisanewfeatureofServlets3.0

AvoidsalotofXMLconfigura8on

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@I j t (B kLi tS l t)


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@Inject(BookListServlet) ServletusesrepositorymodelobjecttolookupalistofBookRepositorybooks.

Javadependencyinjec8onusedtoinjectBookRepositoryintotheServlet

@Injectetc.addedinJava6

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doGet(BookListServlet) Servletiscontrollerinmodel2

Controllertalkstothemodel(BookRepositorytogetalistofBook),

doGetmethodgetscalledwhensomebodyloadsthepagefromthebrowserand

correspondstoHTTPGT

doGetmethodusestherequestobject(HEpServletRequestrequest)toputthelistof

booksintorequestscopeusingsetAEributeasfollows:

request.setAttribute puts books into request scope.But what is a scope?

Thursday, May 3, 12
http://en.wikipedia.org/wiki/Hypertext_Transfer_Protocolhttp://en.wikipedia.org/wiki/Hypertext_Transfer_Protocolhttp://www.caucho.com/resin-application-server/http://www.caucho.com/resin-application-server/http://wiki4.caucho.com/Main_Pagehttp://wiki4.caucho.com/Main_Pagehttp://blog.caucho.com/http://blog.caucho.com/http://www.caucho.com/about/contact/http://www.caucho.com/about/contact/http://www.caucho.com/http://www.caucho.com/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/


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Understandingscopes

ServletsandJavahavevariousscopes

page,request,conversa8on,session,applica8on

Pagescope(10to200milliseconds)

RequestscopeisaroundforoneHTTPrequest(1/2secondto

severalseconds)

Sessionscopeisaroundfortheen8reusersession(5minutesto90minutes)

Conversa8onscopeisaroundforoneworkflow(userregistra8on,shoppingcart,etc.).

Applica8onscopeisaroundun8lwebappshutsdown

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BackgroundonJSP

JSPpagesarealsoServlets

JSPisatempla8nglanguagetodefineServletsthatallowsyoutofocusontheHTMLinsteadoftheJavacode

JSPislikeaServletturnedinsideout

ssen8allyaJSPpageistranslatedandcompiledintoaservlets

JSPissimilartoASPandPHPinconceptandscope

ASPpredatesJSPandearlyJSPandASPusealotofthesameconcepts

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l l
http://www.caucho.com/http://www.caucho.com/about/contact/http://blog.caucho.com/http://wiki4.caucho.com/Main_Pagehttp://www.caucho.com/resin-application-server/http://en.wikipedia.org/wiki/PHPhttp://en.wikipedia.org/wiki/PHPhttp://en.wikipedia.org/wiki/Active_Server_Pageshttp://en.wikipedia.org/wiki/Active_Server_Pageshttp://www.caucho.com/resin-application-server/http://www.caucho.com/resin-application-server/http://wiki4.caucho.com/Main_Pagehttp://wiki4.caucho.com/Main_Pagehttp://blog.caucho.com/http://blog.caucho.com/http://www.caucho.com/about/contact/http://www.caucho.com/about/contact/http://www.caucho.com/http://www.caucho.com/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/


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JSPscriptletsversusTemplates

JSPallowsmixingJavacodeandHTML(calledJavascriptlets) ,butdont

JSPadoptedmoreofaclassictempla8ngapproachlike

Freemarker,VelocityandSmarty(PHPbasedtemplaBng)

DontallowmixingtheprogramminglanguagewiththetemplaBng

language AllowsthetemplaBnglanguagetobeasimpleviewlogiclanguage,

Keepsthetemplatessmallerandmorereadable.

JSPusesJSTLandtheUnifiedLtoaccomplishthingsthatSmarty,FreemarkerandVelocityaccomplish

UsingJSTL/LinsteadofJavascriptletsapproachisabestprac8ce

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8 i li
http://www.caucho.com/http://www.caucho.com/about/contact/http://blog.caucho.com/http://wiki4.caucho.com/Main_Pagehttp://www.caucho.com/resin-application-server/http://www.caucho.com/download/http://en.wikipedia.org/wiki/JavaServer_Pages_Standard_Tag_Libraryhttp://en.wikipedia.org/wiki/Unified_Expression_Languagehttp://en.wikipedia.org/wiki/Unified_Expression_Languagehttp://en.wikipedia.org/wiki/Unified_Expression_Languagehttp://en.wikipedia.org/wiki/JavaServer_Pages_Standard_Tag_Libraryhttp://en.wikipedia.org/wiki/JavaServer_Pages_Standard_Tag_Libraryhttp://www.smarty.net/syntax_comparisonhttp://www.smarty.net/syntax_comparisonhttp://en.wikipedia.org/wiki/Apache_Velocityhttp://en.wikipedia.org/wiki/Apache_Velocityhttp://en.wikipedia.org/wiki/FreeMarkerhttp://en.wikipedia.org/wiki/FreeMarkerhttp://www.caucho.com/resin-application-server/http://www.caucho.com/resin-application-server/http://wiki4.caucho.com/Main_Pagehttp://wiki4.caucho.com/Main_Pagehttp://blog.caucho.com/http://blog.caucho.com/http://www.caucho.com/about/contact/http://www.caucho.com/about/contact/http://www.caucho.com/http://www.caucho.com/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/


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Crea8ngaJSPinclipse

Right click WebContent/WEB-INF/pages, then select New->JSP File

use the file name book-list.jsp

Create a folder under WebContent/WEB-INF called pages

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M dif b k li j h h f ll i


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Modifybook-list.jsptomatchthefollowing

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book list jsp page direc8ve


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book-list.jsppagedirec8ve Let'sbreakthisdownsome.

FirstsetuppageusingJSPpagedirec8ve:

pagedirec8vesayshowwewantthecharactersencodedandwhatthemimetypeof

thepageis.Consideritboilerplatefornow

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Using JSTL core library
http://en.wikipedia.org/wiki/Internet_media_typehttp://en.wikipedia.org/wiki/Internet_media_typehttp://www.caucho.com/resin-application-server/http://www.caucho.com/resin-application-server/http://wiki4.caucho.com/Main_Pagehttp://wiki4.caucho.com/Main_Pagehttp://blog.caucho.com/http://blog.caucho.com/http://www.caucho.com/about/contact/http://www.caucho.com/about/contact/http://www.caucho.com/http://www.caucho.com/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/download/http://www.caucho.com/downloa

Java EE Tutorial- Cookbook 1

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