You should have completed the article "Using Struts and Hibernate (Part I)", where we have explained configuration of hibernate and setup of struts. Instead of starting from scratch, you need modify the codes you have completed from that application.

First, you should have your MySQL database running just like in article "Using Struts and Hibernate (Part I)".

Assume TOMCAT_HOME is the folder C:\jakarta-tomcat-5, where Tomcat 5 has been installed. You should have the directory structure looks like:

You need copy hibernateapp folder and its contents, and paste it on webapps folder. You should change the folder "Copy of hibernateapp" by rename it to "hibernateapp2". Now you should have directory as

To use dynamic action forms, you don't need the action form class, so remove the class MyappForm.java and MyappForm.class from folder TOMCAT_HOME\webapps\hibernateapp2\com\usanalyst\struts

1. Struts configuration modification

You need to modify struts-config.xml file for using DynaValidatorForm.

    <form-beans>
 <form-bean name="registerForm"  
        type="org.apache.struts.validator.DynaValidatorForm">
            <form-property name="email" type="java.lang.String"/>
            <form-property name="firstName" type="java.lang.String"/>
            <form-property name="lastName" type="java.lang.String"/>
            <form-property name="phone" type="java.lang.String"/>
         </form-bean>      
    </form-beans>

Above is the only change you need to replace previous definition of . Save struts-config.xml

2. Refactor model and struts action

In class HbappModel.java, HashMap has been used to receive data from controler. For a better design, you should use an interface, namely java.util.Map. So we can redesign this class as

List 2.1 HbappModel.java

package com.usanalyst.struts;
import java.sql.*;
import java.util.Map;
import com.usanalyst.hibernate.*;
import org.hibernate.*;
import org.hibernate.cfg.*;
import java.util.Date;

public class HbappModel {

Map map=null;

public void setMap(Map map) {
this.map=map;
}

public void saveByHibernate() {

Session session1 = HibernateUtil.currentSession();
Transaction tx = session1.beginTransaction();

user_info user = new user_info();
user.setEmail((String)map.get("email"));
user.setFirstName((String)map.get("firstName"));
user.setLastName((String)map.get("lastName"));
user.setPhone((String)map.get("phone"));
user.setRequestTime(new Date());

session1.save(user);

tx.commit();
HibernateUtil.closeSession();

}
}

In addition, you must also change MyappAcion.java to use Map interface.

List 2.2 MyappAcion.java

package com.usanalyst.struts;

import java.util.HashMap;
import java.util.Map;

import javax.servlet.*;
import javax.servlet.http.*;
import org.apache.struts.action.*;

import org.apache.struts.util.MessageResources;
import org.apache.commons.beanutils.PropertyUtils;

import org.apache.struts.validator.DynaValidatorForm;

public final class MyappAction extends Action {

public ActionForward execute(ActionMapping mapping, ActionForm form, HttpServletRequest request,
HttpServletResponse response) throws Exception {

MyappAttributes mAttr=new MyappAttributes();

DynaActionForm myForm = (DynaActionForm)form;

Map map=myForm.getMap();

HbappModel mModel=new HbappModel();
mModel.setMap(map);
mModel.saveByHibernate();

mAttr.setStrSuccess("Your record has been saved.");
request.setAttribute("usanalyst.success",mAttr);

request.removeAttribute(mapping.getAttribute());

return (mapping.findForward("NotifySave"));
}

}

You must recompile the changed files before restart tomcat.

3. Tomcat Configuration

Since you are using JNDI for database connection in Hibernate, you need add to server.xml in node <Host>

	<Context path="/hibernateapp2" docBase="hibernateapp2">
	
	<Resource name="jdbc/getjobs" auth="Container" type="javax.sql.DataSource"
	               maxActive="100" maxIdle="30" maxWait="10000"
	               username="myguest" password="myapp0" driverClassName="com.mysql.jdbc.Driver"
	               url="jdbc:mysql:///myapp" />
	 
	</Context>

Usually, you also need to verify in TOMCAT_HOME\webapps\hibernateapp2\WEB-INF\web.xml, there is an element

List 3. JNDI resource reference

  <resource-ref>
  	<res-ref-name>jdbc/getjobs</res-ref-name>
  	<res-type>javax.sql.DataSource</res-type>
  	<res-auth>Container</res-auth>
  </resource-ref>

where jdbc/getjobs relates Resource element JNDI name in server.xml

If you copied web.xml from last article (TOMCAT_HOME\webapps\hibernateapp\WEB-INF\web.xml), you don't need change anything because elements in List 3 should be there.

4. Running the application

Restart Tomcat server and start your favorite browser. Type in

http://localhost:8081/hibernateapp2/myapp.jsp

(We have use port 8081 for http. You may have a different port, such as 8080 or 80).

If you type the inputs and click the Submit button, you should be able to save your inputs into the MySQL database.