Nearby lessons

6 of 19

Hibernate - Retrieving Records Hibernate - MySQL Integration Hibernate - Struts Integration Hibernate - Configuration Hibernate - Composite Keys

Hibernate - Integration with Struts

📌 What You Will Learn

Understand Hibernate - Integration with Struts
See working code examples
Learn from common mistakes and Q&A

Learn Hibernate - Integration with Struts step by step — simple explanations, complete programs with their output, common beginner mistakes, and exam-style MCQs.

Integration with Struts

<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-

instance" xmlns="http://java.sun.com/xml/ns/javaee" xsi:schemaLocation="http://java.sun.c om/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web- app_2_5.xsd" id="WebApp_ID" version="2.5">

<display-name>loginapp</display-name>
<welcome-file-list>
<welcome-file>loginform.html</welcome-file>
</welcome-file-list>
<servlet>
<servlet-name>actionServlet</servlet-name>
<servlet-class>org.apache.struts.action.ActionServlet</servlet-class>
<load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>actionServlet</servlet-name>
<url-pattern>*.do</url-pattern>
</servlet-mapping>
</web-app>

Integration Of Hibernate with Struts

Manual Approach:
By Customizing ActionServlet
By Using PlugIn Approach

Hibernate

Student.java
Student.hbm.xml
hibernate.cfg.xml
HibernateUtil.java
StudentService.java

Struts — registrationform.html

StudentRegistrationAction.java
StudentRegistrationActionForm.java
student_registration_form.html
success.html
failure.html
existed.html
struts-config.xml
web.xml

Example:

Example04

JCode Cell

1
2	<!DOCTYPE html>
3	<html>
4	<head>
5	<meta charset="ISO-8859-1">
6	<title>Insert title here</title>
7	</head>
8	<body>
9	<h2>Durga Software Solutions</h2>
10	<h3>Student Registration Form</h3>
11	<form method="POST" action="reg.do">
12	<table>
13	<tr>
14	<td>Student Id</td>
15	<td><input type="text" name="sid"/></td>
16	</tr>
17	<tr>
18	<td>Student Name</td>
19	<td><input type="text" name="sname"/></td>
20	</tr>
21	<tr>
22	<td>Student Address</td>
23	<td><input type="text" name="saddr"/></td>
24	</tr>
25	<tr>
26	<td><input type="submit" value="Registration"/></td>
27	</tr>
28	</table>
29	</form>
30	</body>
31	</html>
32

Struts — success.html

Example05

JCode Cell

1
2	<!DOCTYPE html>
3	<html>
4	<head>
5	<meta charset="ISO-8859-1">
6	<title>Insert title here</title>
7	</head>
8	<body>
9	<h2>Durga Software Solutions</h2>
10	<h3>Student Registration Status</h3>
11	<font color="red" size="6">
12	<b>
13	Student Registration Success
14	</b>
15	</font>
16	<h5>
17	<a href="./registrationform.html">\|Student Registration Form\|</a>
18	</h5>
19	</body>
20	</html>
21

Struts — failure.html

Example06

JCode Cell

1
2	<!DOCTYPE html>
3	<html>
4	<head>
5	<meta charset="ISO-8859-1">
6	<title>Insert title here</title>
7	</head>
8	<body>
9	<h2>Durga Software Solutions</h2>
10	<h3>Student Registration Status</h3>
11	<font color="red" size="6">
12	<b>
13	Student Registration Failure
14	</b>
15	</font>
16	<h5>
17	<a href="./registrationform.html">\|Student Registration Form\|</a>
18	</h5>
19	</body>
20	</html>
21

Struts — existed.html

Example07

JCode Cell

1
2	<!DOCTYPE html>
3	<html>
4	<head>
5	<meta charset="ISO-8859-1">
6	<title>Insert title here</title>
7	</head>
8	<body>
9	<h2>Durga Software Solutions</h2>
10	<h3>Student Registration Status</h3>
11	<font color="red" size="6">
12	<b>
13	Student Existed Already
14	</b>
15	</font>
16	<h5>
17	<a href="./registrationform.html">\|Student Registration Form\|</a>
18	</h5>
19	</body>
20	</html>
21

Struts — StudentActionForm.java

Example08

JCode Cell

1
2	package com.durgasoft.beans;
3
4	import org.apache.struts.action.ActionForm;
5
6	public class StudentActionForm extends ActionForm {
7	private String sid;
8	private String sname;
9	private String saddr;
10	public String getSid() {
11	return sid;
12	}
13	public void setSid(String sid) {
14	this.sid = sid;
15	}
16	public String getSname() {
17	return sname;
18	}
19	public void setSname(String sname) {
20	this.sname = sname;
21	}
22	public String getSaddr() {
23	return saddr;
24	}
25	public void setSaddr(String saddr) {
26	this.saddr = saddr;
27	}
28
29
30	}
31

Struts — StudentAction.java

Example09

JCode Cell

1
2	package com.durgasoft.action;
3
4	import javax.servlet.http.HttpServletRequest;
5	import javax.servlet.http.HttpServletResponse;
6
7	import org.apache.struts.action.Action;
8	import org.apache.struts.action.ActionForm;
9	import org.apache.struts.action.ActionForward;
10	import org.apache.struts.action.ActionMapping;
11
12	import com.durgasoft.beans.StudentActionForm;
13	import com.durgasoft.service.StudentService;
14
15	public class StudentAction extends Action {
16	@Override
17	public ActionForward execute(ActionMapping mapping, ActionForm form, HttpServletRequest request,
18	HttpServletResponse response) throws Exception {
19	String status = "";
20	StudentActionForm saf = (StudentActionForm)form;
21	String sid = saf.getSid();
22	String sname = saf.getSname();
23	String saddr = saf.getSaddr();
24	StudentService stdService = new StudentService();
25	status = stdService.registration(sid, sname, saddr);
26	return mapping.findForward(status);
27	}
28	}
29

Struts — StudentService.java

Example10

JCode Cell

1
2	package com.durgasoft.service;
3
4	import org.hibernate.Session;
5	import org.hibernate.SessionFactory;
6	import org.hibernate.Transaction;
7
8	import com.durgasoft.hbn.pojo.Student;
9	import com.durgasoft.hbn.util.HibernateUtil;
10
11	public class StudentService {
12	String status = "";
13	public String registration(String sid, String sname, String saddr) {
14	try {
15	SessionFactory sessionFactory = HibernateUtil.getSessionFactory();
16	Session session = sessionFactory.openSession();
17	Student std = (Student) session.get(Student.class, sid);
18	if(std == null) {
19	std = new Student();
20	std.setSid(sid);
21	std.setSname(sname);
22	std.setSaddr(saddr);
23	Transaction tx = session.beginTransaction();
24	session.save(std);
25	tx.commit();
26	status = "success";
27	}else {
28	status = "existed";
29	}
30	} catch (Exception e) {
31	status = "failure";
32	e.printStackTrace();
33	}
34	return status;
35	}
36	}
37

Struts — Student.java

Example11

JCode Cell

1
2	package com.durgasoft.hbn.pojo;
3
4	public class Student {
5	private String sid;
6	private String sname;
7	private String saddr;
8
9	public String getSid() {
10	return sid;
11	}
12	public void setSid(String sid) {
13	this.sid = sid;
14	}
15	public String getSname() {
16	return sname;
17	}
18	public void setSname(String sname) {
19	this.sname = sname;
20	}
21	public String getSaddr() {
22	return saddr;
23	}
24	public void setSaddr(String saddr) {
25	this.saddr = saddr;
26	}
27
28
29	}
30

Struts — HibernateUtil.java

Example12

JCode Cell

1
2	package com.durgasoft.hbn.util;
3
4	import org.hibernate.SessionFactory;
5	import org.hibernate.cfg.Configuration;
6
7	public class HibernateUtil {
8	static SessionFactory sessionFactory;
9	static {
10	try {
11	Configuration cfg = new Configuration();
12	cfg.configure("/com/durgasoft/hbn/cfgs/hibernate.cfg.xml");
13	sessionFactory = cfg.buildSessionFactory();
14	} catch (Exception e) {
15	e.printStackTrace();
16	}
17	}
18	public static SessionFactory getSessionFactory() {
19	return sessionFactory;
20	}
21	}
22

Struts — Student.hbm.xml

Example13

JCode Cell

1
2	<?xml version="1.0" encoding="UTF-8"?>
3	<!DOCTYPE hibernate-mapping PUBLIC
4	"-//Hibernate/Hibernate Mapping DTD 3.0//EN"
5	"http://www.hibernate.org/dtd/hibernate-mapping-3.0.dtd">
6	<hibernate-mapping>
7	<class name="com.durgasoft.hbn.pojo.Student" table="student">
8	<id name="sid" column="SID"/>
9	<property name="sname" column="SNAME"/>
10	<property name="saddr" column="SADDR"/>
11	</class>
12	</hibernate-mapping>
13

Struts — hibernate.cfg.xml

Example14

JCode Cell

1
2	<?xml version="1.0" encoding="UTF-8"?>
3	<!DOCTYPE hibernate-configuration PUBLIC
4	"-//Hibernate/Hibernate Configuration DTD 3.0//EN"
5	"http://www.hibernate.org/dtd/hibernate-configuration-3.0.dtd">
6	<hibernate-configuration>
7	<session-factory>
8	<property name="connection.driver_Class">com.mysql.jdbc.Driver</property>
9	<property name="connection.url">jdbc:mysql://localhost:3306/durgadb</property>
10	<property name="connection.username">root</property>
11	<property name="connection.password">root</property>
12	<property name="hibernate.dialect">org.hibernate.dialect.MySQLDialect</property>
13	<mapping resource="com/durgasoft/hbn/mappings/Student.hbm.xml"/>
14	</session-factory>
15	</hibernate-configuration>
16

Struts — struts-config.xml

Example15

JCode Cell

1
2	<?xml version="1.0" encoding="UTF-8"?>
3	<!DOCTYPE struts-config PUBLIC
4	"-//Apache Software Foundation//DTD Struts Configuration 1.3//EN"
5	"http://struts.apache.org/dtds/struts-config_1_3.dtd">
6	<struts-config>
7	<form-beans>
8	<form-bean name="studentActionForm" type="com.durgasoft.beans.StudentActionForm"/>
9	</form-beans>
10	<action-mappings>
11	<action path="/reg" name="studentActionForm" type="com.durgasoft.action.StudentAction">
12	<forward name="success" path="/success.html"/>
13	<forward name="failure" path="/failure.html"/>
14	<forward name="existed" path="/existed.html"/>
15	</action>
16
17	</action-mappings>
18	</struts-config>
19

Struts — web.xml

Example16

JCode Cell

1
2	<?xml version="1.0" encoding="UTF-8"?>
3	<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://java.sun.com/xml/ns/javaee" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd" id="WebApp_ID" version="2.5">
4	<display-name>struts_hibernate_app1</display-name>
5	<welcome-file-list>
6	<welcome-file>registrationform.html</welcome-file>
7	</welcome-file-list>
8	<servlet>
9	<servlet-name>actionServlet</servlet-name>
10	<servlet-class>org.apache.struts.action.ActionServlet</servlet-class>
11	<load-on-startup>1</load-on-startup>
12	</servlet>
13	<servlet-mapping>
14	<servlet-name>actionServlet</servlet-name>
15	<url-pattern>*.do</url-pattern>
16	</servlet-mapping>
17	</web-app>
18

Struts

In the above application, Struts Framework will be loaded at the time of Server Startup, because, ActionServlet initialization is performed at the time of Server Startup due to <load-on-startup> configuration in ActionServlet configuration in web.xml file, but, Hibernate software is loaded after the Server startup and after getting first request from client, it may take lot of time to load Hibernate Software, it will increase response time and it will reduce application performance.

In the above context, to improve application performance we have to load Hibernate Software along with Struts framework loading, that is, at the time of Server startup and as part of ActionServlet initialization.

To achieve the above requirement we have to Customize ActionServlet initialization process.

Hibernate integration with Struts by Customizing ActionServlet

1) Prepare Our own Controller class by extending ActionServlet and override "init()"

method

Example19

JCode Cell

1
2	package com.durgasoft.controller;
3	import javax.servlet.ServletConfig;
4	import javax.servlet.ServletException;
5	import org.apache.struts.action.ActionServlet;
6	import com.durgasoft.hbn.util.HibernateUtil;
7	public class MyController extends ActionServlet {
8	public void init(ServletConfig config) throws ServletException {
9	super.init(config);
10	HibernateUtil.getSessionFactory();
11	System.out.println("**MyController-init()********");
12	System.out.println("Struts Framework is Loaded");
13	System.out.println("Hibernate is Loaded");
14	System.out.println("*******MyController-init()******");
15	}
16	}
17

Configure User Defined Controller class in web.xml file

<web-app>
<welcome-file-list>
<welcome-file>registrationform.html</welcome-file>
</welcome-file-list>
<servlet>
<servlet-name>myController</servlet-name>
<servlet-class>com.durgasoft.controller.MyController</servlet-class>
<load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>myController</servlet-name>
<url-pattern>*.do</url-pattern>
</servlet-mapping>
</web-app>

In Struts based web applications, it is not suggestible to customize predefined controller ActionServlet , because, ActionServlet is having no of responsibilities as part of its initialization, if we have not overridden init() method properly then the total ActionServlet may not be executed, it may not load Struts Framework.

Integration of Hibernate with Struts by using plugin Approach

a) Prepare Hibernate PlugIn class. b) Configure hibernate PlugIn class in struts configuration file.

a) Prepare Hibernate PlugIn class

To prepare Hibernate PlugIn class, declare an user defined class and implement org.apache.struts.action.PlugIn interface and provide implementat6ion for the following methods.

public void init(ActionServlet as, ModuleConfig config) throws ServletException
public void destroy()

Example22

JCode Cell

1
2	package com.durgasoft.plugin;
3	import javax.servlet.ServletException;
4	import org.apache.struts.action.ActionServlet;
5	import org.apache.struts.action.PlugIn;
6	import org.apache.struts.config.ModuleConfig;
7	import com.durgasoft.hbn.util.HibernateUtil;
8	public class HibernatePlugIn implements PlugIn {
9	public void init(ActionServlet arg0, ModuleConfig arg1) throws ServletException {
10	System.out.println("**HibernatePlugIn-init()*******");
11	HibernateUtil.getSessionFactory();
12	System.out.println("Hibernate is Loaded along with Struts Loading");
13	System.out.println("***HibernatePlugIn-init()*******");
14	}
15	public void destroy() {
16	}
17	}
18

b) Configure Hibernate Plugin class in Struts configuration File

<struts-config>
<plug-in className="com.durgasoft.plugin.HibernatePlugIn"/>
</struts-config>

Internal Flow

When we start Server, Container will perform the following actions.

Container will deploye all web applications which are available in webapps folder or in deployments folder.
Container will recognize web.xml file and perform web.xml file loading and parsing.
Container will recognize <load-on-startup> configuration in ActionServlet configuration in

web.xml file then performs ActionServlet loading, instantiation and initialization.

As part of ActionServlet initialization, ActionServlet will recognize struts configuration file

then performs struts configuration file loading and parsing.

ActionServlet will recognize <plug-in> tag in struts configuration file and identify

HibernatePlugIn class .

ActionServlet will perform HibernatePlugIn class loading , instantiation and initialization.
As part of HibernatePlugIn class initialization,ActionServlet will load Hibernate software and

prepare Configuration and SessionFactory objects with HibernateUtil class at the time of Server startup. Is it possible to interact with more than one Database from a single Hibernate Application?

Ans — Employee.java

Yes, in single hibernate application we are able to interact with more than one Database, but, we must use the following conventions.

1) We must provide separate configuration file for each and every Database. 2) Use either single mapping file if we have same table name and same columns in both the

databases tables and use different mapping file for each and every database if we have difference in table names and column names. 3) In Client application.

Prepare Seperate Configuration object for each and every DB.
Prepare seperate SessionFactory object for each and every DB.
Prepare seperate Session object for each and every DB.
Prepare Seperate Transaction object for each and every DB as per the requirement.
Perform persistance operations on DB respective Session objects.

Example:

Example25

JCode Cell

1
2	package com.durgasoft.hbn.pojo;
3
4	public class Employee {
5	private int eno;
6	private String ename;
7	private float esal;
8	private String eaddr;
9	public int getEno() {
10	return eno;
11	}
12	public void setEno(int eno) {
13	this.eno = eno;
14	}
15	public String getEname() {
16	return ename;
17	}
18	public void setEname(String ename) {
19	this.ename = ename;
20	}
21	public float getEsal() {
22	return esal;
23	}
24	public void setEsal(float esal) {
25	this.esal = esal;
26	}
27	public String getEaddr() {
28	return eaddr;
29	}
30	public void setEaddr(String eaddr) {
31	this.eaddr = eaddr;
32	}
33	}
34

Ans — Employee.hbm.xml

Example26

JCode Cell

1
2	<?xml version="1.0" encoding="UTF-8"?>
3	<!DOCTYPE hibernate-mapping PUBLIC
4	"-//Hibernate/Hibernate Mapping DTD 3.0//EN"
5	"http://www.hibernate.org/dtd/hibernate-mapping-3.0.dtd">
6	<hibernate-mapping>
7	<class name="com.durgasoft.hbn.pojo.Employee" table="emp1">
8	<id name="eno" column="ENO"/>
9	<property name="ename" column="ENAME"/>
10	<property name="esal" column="ESAL"/>
11	<property name="eaddr" column="EADDR"/>
12	</class>
13	</hibernate-mapping>
14

Ans — hibernate_oracle.cfg.xml

Example27

JCode Cell

1
2	<?xml version="1.0" encoding="UTF-8"?>
3	<!DOCTYPE hibernate-configuration PUBLIC
4	"-//Hibernate/Hibernate Configuration DTD 3.0//EN"
5	"http://www.hibernate.org/dtd/hibernate-configuration-3.0.dtd">
6	<hibernate-configuration>
7	<session-factory>
8	<property name="connection.driver_Class">oracle.jdbc.OracleDriver</property>
9	<property name="connection.url">jdbc:oracle:thin:@localhost:1521:xe</property>
10	<property name="connection.user">system</property>
11	<property name="connection.password">durga</property>
12	<property name="hibernate.dialect">org.hibernate.dialect.OracleDialect</property>
13	<property name="show_sql">true</property>
14	<mapping resource="com/durgasoft/hbn/mappings/Employee.hbm.xml"/>
15	</session-factory>
16	</hibernate-configuration>
17

Ans — hibernate_mysql.cfg.xml

Example28

JCode Cell

1
2	<?xml version="1.0" encoding="UTF-8"?>
3	<!DOCTYPE hibernate-configuration PUBLIC
4	"-//Hibernate/Hibernate Configuration DTD 3.0//EN"
5	"http://www.hibernate.org/dtd/hibernate-configuration-3.0.dtd">
6	<hibernate-configuration>
7	<session-factory>
8	<property name="connection.driver_Class">com.mysql.jdbc.Driver</property>
9	<property name="connection.url">jdbc:mysql://localhost:3306/durgadb</property>
10	<property name="connection.user">root</property>
11	<property name="connection.password">root</property>
12	<property name="hibernate.dialect">org.hibernate.dialect.MySQLDialect</property>
13	<property name="show_sql">true</property>
14	<mapping resource="com/durgasoft/hbn/mappings/Employee.hbm.xml"/>
15	</session-factory>
16	</hibernate-configuration>
17

Ans — ClientApp.java

Example29

JCode Cell

1
2	package com.durgasoft.hbn.client;
3
4	import org.hibernate.Session;
5	import org.hibernate.SessionFactory;
6	import org.hibernate.Transaction;
7	import org.hibernate.cfg.Configuration;
8
9	import com.durgasoft.hbn.pojo.Employee;
10
11	public class ClientApp {
12
13	public static void main(String[] args) {
14	SessionFactory oracle_SessionFactory = null;
15	SessionFactory mysql_SessionFactory = null;
16	Session oracle_Session = null;
17	Session mysql_Session = null;
18	try {
19	Configuration oracle_Cfg = new Configuration();
20	Configuration mysql_Cfg = new Configuration();
21
22	oracle_Cfg.configure("hibernate_oracle.cfg.xml");
23	mysql_Cfg.configure("hibernate_mysql.cfg.xml");
24
25	oracle_SessionFactory = oracle_Cfg.buildSessionFactory();
26	mysql_SessionFactory = mysql_Cfg.buildSessionFactory();
27
28	oracle_Session = oracle_SessionFactory.openSession();
29	mysql_Session = mysql_SessionFactory.openSession();
30
31	Employee emp = (Employee) oracle_Session.get(Employee.class, 111);
32	System.out.println("Employee retrived from Oracle DB");
33
34	Transaction mysql_Tx = mysql_Session.beginTransaction();
35	mysql_Session.save(emp);
36	mysql_Tx.commit();
37	System.out.println("Employee Inserted in MySQL DB");
38
39	} catch (Exception e) {
40	e.printStackTrace();
41	}finally {
42	oracle_Session.close();
43	mysql_Session.close();
44
45	oracle_SessionFactory.close();
46	mysql_SessionFactory.close();
47	}
48
49	}
50	}
51

Ans

Is it possible to run hibernate applicatins with out using mapping file?

ANS

Yes, it is possible to run hibernate applications with out using mapping file, but, we have to use Annotations. To provide mapping details in Hibernate applications we have to use the following annotations provided by JPA in the form of "javax.persistence" package.

@Entity

It is a class level annotation, it can be used to declare a class as an Entity class.

@Table(name="--")

This annotation is a class level annotation, it can be used to configure table name for the entity class. Where "name" member is able to provide the respective table name.

@Id — hibernate.cfg.xml

This annotation is Field/Method[getXXX()] level annotation, it can be used to declare a property as ID property.

@Column(name="--")

This annotation is Field/Method[getXXX()] level annotation, it can be used to provide a database table column name inorder to provide mapping .

1) In Hibernate Applications, to use annotations we have to use the following steps. 2) Remove mapping file and provide annotations ion POJO class. 3) In Configuration File , provide <mapping> tag with "class" attribute inplace of "resource"

attribute."class" attribute will take fully qualified name of the respective POJO class. 4) In Client Application, Create Either AnnotationConfiguration object or Configuration object to

process Annotations. Note: AnnotationConfiguration is deprecated class, so it is better to use Configuration class object to process annotations.

Ex: Employee.java

@Entity
@Table(name="emp1")
public class Employee{
@Id
@Column(name="ENO")
private int eno;
@Column(name="ENAME")
private String ename;
@Column(name="ESAL")
private float esal;
@Column(name="EADDR")
private String eaddr;
setXXX() and getXXX()

Example33

JCode Cell

1
2	<hibernate-configuration>
3	---
4	<mapping class="com.durgasoft.hbn.pojo.Employee"/>
5	----
6	</hibernate-Configuration>
7

ClientApp.java — Employee.java

Same as previous applications.

Example:

Example34

JCode Cell

1
2	package com.durgasoft.hbn.pojo;
3
4	import javax.persistence.Column;
5	import javax.persistence.Entity;
6	import javax.persistence.Id;
7	import javax.persistence.Table;
8
9	@Entity
10	@Table(name="emp1")
11	public class Employee {
12	@Id
13	@Column(name="ENO")
14	private int eno;
15	@Column(name="ENAME")
16	private String ename;
17	@Column(name="ESAL")
18	private float esal;
19	@Column(name="EADDR")
20	private String eaddr;
21
22	/*
23	@Id
24	@Column(name="ENO")
25	*/
26	public int getEno() {
27	return eno;
28	}
29	public void setEno(int eno) {
30	this.eno = eno;
31	}
32	// @Column(name="ENAME")
33	public String getEname() {
34	return ename;
35	}
36	public void setEname(String ename) {
37	this.ename = ename;
38	}
39	//@Column(name="ESAL")
40	public float getEsal() {
41	return esal;
42	}
43	public void setEsal(float esal) {
44	this.esal = esal;
45	}
46	//@Column(name="EADDR")
47	public String getEaddr() {
48	return eaddr;
49	}
50	public void setEaddr(String eaddr) {
51	this.eaddr = eaddr;
52	}
53
54
55	}
56

ClientApp.java — hibernate.cfg.xml

Example35

JCode Cell

1
2	<?xml version="1.0" encoding="UTF-8"?>
3	<!DOCTYPE hibernate-configuration PUBLIC
4	"-//Hibernate/Hibernate Configuration DTD 3.0//EN"
5	"http://www.hibernate.org/dtd/hibernate-configuration-3.0.dtd">
6	<hibernate-configuration>
7

📝 Key Takeaways

Key ideas of Hibernate - Integration with Struts explained simply
Ready-to-use code examples
Exam-style questions at the end

Hibernate

Nearby lessons

Hibernate - Integration with Struts

01Integration with Struts

02Integration Of Hibernate with Struts

03Hibernate

04Struts — registrationform.html

05Struts — success.html

06Struts — failure.html

07Struts — existed.html

08Struts — StudentActionForm.java

09Struts — StudentAction.java

10Struts — StudentService.java

11Struts — Student.java

12Struts — HibernateUtil.java

13Struts — Student.hbm.xml

14Struts — hibernate.cfg.xml

15Struts — struts-config.xml

16Struts — web.xml

17Struts

18Hibernate integration with Struts by Customizing ActionServlet

19method

20Configure User Defined Controller class in web.xml file

21Integration of Hibernate with Struts by using plugin Approach

22a) Prepare Hibernate PlugIn class

23b) Configure Hibernate Plugin class in Struts configuration File

24Internal Flow

25Ans — Employee.java

26Ans — Employee.hbm.xml

27Ans — hibernate_oracle.cfg.xml

28Ans — hibernate_mysql.cfg.xml

29Ans — ClientApp.java

30Ans

31ANS

32@Entity

33@Id — hibernate.cfg.xml

34ClientApp.java — Employee.java

35ClientApp.java — hibernate.cfg.xml

Integration with Struts

Integration Of Hibernate with Struts

Hibernate

Struts — registrationform.html

Struts — success.html

Struts — failure.html

Struts — existed.html

Struts — StudentActionForm.java

Struts — StudentAction.java

Struts — StudentService.java

Struts — Student.java

Struts — HibernateUtil.java

Struts — Student.hbm.xml

Struts — hibernate.cfg.xml

Struts — struts-config.xml

Struts — web.xml

Struts

Hibernate integration with Struts by Customizing ActionServlet

method

Configure User Defined Controller class in web.xml file

Integration of Hibernate with Struts by using plugin Approach

a) Prepare Hibernate PlugIn class

b) Configure Hibernate Plugin class in Struts configuration File

Internal Flow

Ans — Employee.java

Ans — Employee.hbm.xml

Ans — hibernate_oracle.cfg.xml

Ans — hibernate_mysql.cfg.xml

Ans — ClientApp.java

Ans

ANS

@Entity

@Id — hibernate.cfg.xml

ClientApp.java — Employee.java

ClientApp.java — hibernate.cfg.xml