ExampleExample

Student Record ApplicationStudent Record Application

EnvironmentEnvironment Run environment: JDK 1.4Run environment: JDK 1.4

Web server: TOMCAT as JSP containerWeb server: TOMCAT as JSP container

Application Server: pure Java ClassApplication Server: pure Java Class

Database: Oracle + JDBC driverDatabase: Oracle + JDBC driver

Development toolDevelopment tool NetBeans IDE 3.5.1NetBeans IDE 3.5.1

ANT+NotepadANT+Notepad

TomcatTomcat

Tomcat is a Servlet/JSP containerTomcat is a Servlet/JSP container

Tomcat implements the Servlet and Tomcat implements the Servlet and JavaServer Pages specifications from JavaServer Pages specifications from Java Software Java Software

J D K

T O M C A TJ av aC las s

O R A C L EB ro swe r

Architecture of Student Record Architecture of Student Record applicationapplication

Development work flowDevelopment work flowL o g ic A n a lys is

L o g ic D e s ig n

C o d e

P re p a re D a ta b a s e

C o nfig ueA pplic a tio n

D e plo yA pplic a tio n

R u n A p p lic a tio n

Logic analysisLogic analysis

Under the support of Rational XDE

Student

+ id+ firstname+ surname

+ add ( )+ modify ( )+ delete ( )+ get ( )

Logic designLogic design

Server Side: Servlet + pure java class Server Side: Servlet + pure java class

Client Side: JSP Client Side: JSP

Logical Architecture of Server Logical Architecture of Server Side Side

Under the support of Rational XDE

Design on J2EE framework

«JavaInterface»ServletContextListener

+ contextInitialized ( )+ contextDestroyed ( )

«JavaInterface»ContextListener

Student

+ id+ firstname+ surname

+ getID ( )+ getFirstname ( )+ getSurname ( )+ getFullname ( )+ getFullstudents ( )

StudentsDB

+ connection+ connectionFree+ Students

+ addStudent ( )+ deleteStudent ( )+ modifyStudent ( )+ getStudent ( )+ getStudents ( )+ getConnection ( )+ releaseConnection ( )+ close ( )

- theStudentsDB

0..1

- theStudent

0..1

ContextListenerContextListener

<?xml version="1.0" encoding="UTF-8"?><?xml version="1.0" encoding="UTF-8"?><!DOCTYPE web-app<!DOCTYPE web-app PUBLIC "-//Sun Microsystems, Inc.//DTD Web Application 2.3//EN“PUBLIC "-//Sun Microsystems, Inc.//DTD Web Application 2.3//EN“ "http://java.sun.com/dtd/web-app_2_3.dtd">"http://java.sun.com/dtd/web-app_2_3.dtd">

<web-app><web-app>

<description>Oracle Test App</description><description>Oracle Test App</description> <listener><listener> <listener-class>StudentPackage.contextlisenter</listener-class><listener-class>StudentPackage.contextlisenter</listener-class> </listener></listener>

</web-app></web-app>

Web.xmlWeb.xml

JSP Logical Architecture of Client JSP Logical Architecture of Client Side Side

Hom e.js p

R e q u e s tD e le te.js p

D o D e le te.js p

R e q u e s tA d d.js p

R e q u e s tM o d ify.js p

D o A d d.js p

D o M o d ify.js p

JSPJSP

H o m e .js p

R e qu e s tD e le te.js p

D oD e le te.js p

R e qu e s tA dd.js p

R e qu e s tM odi fy.js p

D oA dd.js p

D oM odi fy.js p

de l e teadd m o di fy

c o nt i nue c o nt i nue

c o nt i nuec o nt i nuec o nt i nue

c o nt i nue

abo r tabo r t abo r t

E n try P o in t

Student Record Application Run Student Record Application Run CycleCycle

Install or Start StudentRecord Application

Call up JSP

Stop StudentRecord application

S tud entR ec o rdis initialized

C o n te x tL is te n e r.c o ntextInitialized ( )

C r e ate an i ns tanc e o fStude nts D B

S tu d e n ts D B .c o ns truc to r( )

c o nne c t i o n us i ng the jdbc /o r ac l e D ataSo ur c eto Ac c e s s D atabas e vi a

J D B C D r i ve r , U R L , us e r nam e and pas s o w r d

o ra c le .jd b c .d riv e r.O ra c le D riv e r

O ra c le D a ta b a s e

Sto r eStude nts D B i ns tanc ei n Se r vl e t Attr i bute

"Stude nts D B "" S tu d e n ts D B "

S e rv le t A ttrib u te(S tud ent)

Install or Start StudentRecord Application

Contextlistener start an Contextlistener start an ApplicationApplication

public void contextInitialized(ServletContextEvent sce) {public void contextInitialized(ServletContextEvent sce) { ServletContext sc= sce.getServletContext();ServletContext sc= sce.getServletContext(); trytry {{ StudentPackage.StudentDB studentdb= new StudentPackage.StudentDB studentdb= new

StudentPackage.StudentDB();StudentPackage.StudentDB(); sc.setAttribute ("studentdb", studentdb);sc.setAttribute ("studentdb", studentdb); }} catch (Exception e)catch (Exception e) {{ sc.log ("Couldn't create database attribute: " + sc.log ("Couldn't create database attribute: " +

e.getMessage ());e.getMessage ()); } } }// end of public void contextInitialized(ServletContextEvent e)}// end of public void contextInitialized(ServletContextEvent e)

c al l upHom e.js p

J SP i s c o m pl i e dand e xe c ute d c o m pl ie d

H o m e .jspR e tr i ve

Stude nts D B fr o mSe r vl e t Attr i bute

"Stude nts D B "

" S tu d e n ts D B "S e rv le t A ttrib u te

(S tu d e n t)

Aqui r e a i ns tanc e o fStude nts D B

S tu d en ts D B

R e ad s tude nt r e c o r d

o ra c le .jd b c .d riv e r.O ra c le D riv e r

O racle

R e tur n s tude nt r e c o r d

R e tur n s tude nt r e c o r d

D i s pl ay s tude nt r e c o r d

Call up Home.jsp

Use StudentDB instanceUse StudentDB instance

<%<% StudentPackage.StudentDB studentdb= StudentPackage.StudentDB studentdb=

(StudentPackage.StudentDB) (StudentPackage.StudentDB) application.getAttribute("studentdb");application.getAttribute("studentdb");

Collection students = studentdb.getStudents();Collection students = studentdb.getStudents();

%>%>

Home.jspHome.jsp

S to pS tu d e n tR e c o rd

C o nte xtL is te ne r.c o nte xtD e s tro ye d( )

" S tu d en tsD B "S erv le t A ttrib u te

(S tu d en t)

R e m o v eS tu d e n ts D B

in S e rv le t A ttrib u te" S tu d e n ts D B "

R e triv eS tu d e n ts D B fro mS e rv le t A ttrib u te

" S tu d e n ts D B " C o m pl i e dJ AVA Se r ve r

P ag e s

A c q u ire a in s tan c e o fS tu d e n ts D B

S tude nts D B

C lo s e D atab as e

O ra c le

o ra c le .jdbc .drive r.O ra c le D rive r

D e s to ry in s tan c e o fS tu d e n ts D B

Stop Student Record Application

Contextlistener stop an Contextlistener stop an ApplicationApplication

public void contextDestroyed(ServletContextEvent public void contextDestroyed(ServletContextEvent sce) {sce) {

ServletContext sc = sce.getServletContext ();ServletContext sc = sce.getServletContext (); StudentPackage.StudentDB studentdb = StudentPackage.StudentDB studentdb =

(StudentPackage.StudentDB) (StudentPackage.StudentDB) sc.getAttribute("studentdb");sc.getAttribute("studentdb");

studentdb.close();studentdb.close(); sc.removeAttribute ("studentdb");sc.removeAttribute ("studentdb"); }}

Prepare DatabasePrepare Database

Create tableCreate tableCREATE TABLE STUDENTDBCREATE TABLE STUDENTDB

( ID NUMBER(10) NOT NULL PRIMARY KEY, ( ID NUMBER(10) NOT NULL PRIMARY KEY,

FIRSTNAME VARCHAR2(30) NOT NULL,FIRSTNAME VARCHAR2(30) NOT NULL,

SURNAME VARCHAR2(30) NOT NULLSURNAME VARCHAR2(30) NOT NULL

););

Insert student recordInsert student recordinsert into studentdb (id, firstname, surname) insert into studentdb (id, firstname, surname)

values (101,'Emma','Dean');values (101,'Emma','Dean');

Configure ApplicationConfigure Application

StudentRecord's Development Directory under NetBeans

Configure Application Configure Application (Cont.)(Cont.)

build.propertiesbuild.properties

Configure Application Configure Application (Cont.)(Cont.)

Build.xmlBuild.xml Server.xmlServer.xml Web.xmlWeb.xml

Configure Application Configure Application (Cont.)(Cont.)

/src/*.java/src/*.java

Configure Application Configure Application (Cont.)(Cont.)

/web/*.jsp/web/*.jsp

Building, Installing, Building, Installing, Deploying Deploying

Use ANT to build, install and deploy Use ANT to build, install and deploy Student Record ApplicationStudent Record Application

Use Neatbeans IDE to build Student Use Neatbeans IDE to build Student Record ApplicationRecord Application

Run ApplicationRun Application

EndEnd

Thank you.Thank you.