Servlet and Tomcat Tutorial

ECT 7130

Download Tomcat

• http://ftp.cuhk.edu.hk/pub/packages/apache.org/tomcat/tomcat-5/v5.5.28/bin/apache-tomcat-5.5.28.zip

• Put under C:\ and unzip to C:\apache-tomcat-5.5.28

Starting and Stopping Tomcat

• In command line window, set JAVA_HOME=c:\Program Files\Java\jdk1.5.0_03 (depends on your jdk directory name, for example, maybe yours is jdk1.6.x_xx)

• C:\apache-tomcat-5.5.28\bin>startup

• C:\apache-tomcat-5.5.28\bin>shutdown

• Open a browser and type inhttp://localhost:8080

Web Application Directory Structurewebapps

*.jsp

*.html

liangweb

WEB-INF

classes

Static files, such as HTML files and JSP files in the directory that is the document root of your Web Application

*.class

lib

*.jar

web.xml

Packages (e.g., chapter35)

*.class

Compiling Servlets

• Set classpath=%classpath%;c:\apache-tomcat-5.5.28\common\lib\servlet-api.jar

• Create directoryc:\apache-tomcat-5.5.28\webapps\liangweb\WEB-INF\classes

• Copy slide/book/FirstServlet.class into c:\apache-tomcat-5.5.28\webapps\liangweb\WEB-INF\classes

• Download www.cs.armstrong.edu/liang/intro6e/supplement/web.xml to

c:\apache-tomcat-5.5.28\webapps\liangweb\WEB-INF

• Run by typing

http://localhost:8080/liangweb/FirstServlet

For JDBC Programs• Create a directory liangweb/META-INF

• Create a file “context.xml” with the following content

<Context path="/liangweb" docBase="liangweb" debug="5“ reloadable="true" crossContext="true">

<Resource name="jdbc/TestDB" auth="Container“ type="javax.sql.DataSource” driverClassName="com.mysql.jdbc.Driver url="jdbc:mysql://localhost;DatabaseName=javabook" username="scott" password="tiger"

maxActive="300" maxIdle="30" maxWait="10000" />

</Context>

• Put mysqljdbc.jar under apache-tomcat-5.5.28/common/lib/

• You have to startup your MySQL database (or MySQL service) with “net start mysql”

Run JDBC Servlet Programs• Under slide/book, you can find SimpleRegistration.html and

SimpleRegistration.class. Do the following tasks:

1. Put the html file under apache-tomcat/webapps/liangweb. Put the class file under apache-tomcat/webapps/liangweb/WEB-INF/classes.

2. Startup tomcat, and type the URL http://localhost:8080/liangweb/SimpleRegistration.html in a browser.

3. Test whether you can successfully insert the record you input in the form into the database.

4. Before you do that, you have to create a table "Address" with the lastname, firstname,..., zip fields in your MySQL database.

You can also test Registration.html/class, RegistrationWithCookie.html/class and RegistrationWithHttpSession.html/class in a similar way.

Part II: JSP

• Startup tomcat

• Copy the following jsp files to apache-tomecat\webapps\liangweb and run

• CurrentTime.jsphttp://localhost:8080/liangweb/CurrentTime.jsp

• Factorial.jsphttp://localhost:8080/liangweb/Factorial.jsp

• ComputeLoan.html and ComputeLoan.jsp

http://localhost:8080/liangweb/ComputeLoan.html

• ComputerLoan1.html (modify this file according to Page 31 of Chapter 40 ppt)

• Copy Loan.java to liangweb\WEB-INF\classes\chapter35\• Compile it into Loan.class• http://localhost:8080/liangweb/ComputerLoan1.html

• Do the same for ComputerLoan2.html + Loan.class

• Do the same for TestBeanScope.jsp + Count.class

• Do the same for FactorialBean.jsp + FactorialBean.class

• Do the same for NewFactorialBean.jsp + NewFactorialBean.class

The JDBC Example

• Copy DBLogin.html, DBLoginInitialization.jsp, Table.jsp, BrowseTable.jsp to liangweb

• Copy DBBean.java to liangweb/WEB-INF/classes/chapter35 and compile it to DBBean.class

• Startup MySQL

• Run http://localhost:8080/liangweb/DBLogin.html