R4R
Right Place For Right Person TM
 
R4R Right ArrowStrutsRight Arrow Struts BasicRight ArrowCore Struts Basic Tutorial

Business Logic Beans:- Model Components in Struts Frameworks

Previous Home Next

Introduction:

Business Logic Beans:- Model Components in Struts Frameworks

The model components in struts1.3 framework provide the facility to developed the business logic bean ,it means that struts1.3 framework provide the facility to insert data, fetch data, update data and delete data in database using JDBC API in java application development. It also provide the facility to plug in ORM framework to persist data, fetch data, update data and delete data in your data base.



Descriptions:
 The following source code which are connect to the database and Persist (insert data in the database) all data using web browser which are persist in the database table. The following source code using the MySql database connection using JDBC API in java platform. 

Directory Structure of Login Example in Struts 1.3 Using MyEclipse IDE



index.jsp

<%@taglib uri="http://struts.apache.org/tags-html" prefix="html" %>
<html>
<head>
<title>Login Form</title>
</head>
<body>
<html:form action="/login" >
<table  border="1" bordercolor="red">
<tr> <td width="500px" align="center" height="50px" style="background: gray;" valign="middle">
<h3 style="color:lime;">Login Example in Struts 1.3 Using MySql Database</h3></td> </tr>
<tr><td align="center" width="250px" height="150px" style="background: gray;">
<table>
<tr> <td>User Name</td> 
<td><html:text name="loginForm" property="name"/></td> </tr> 
<tr> <td>Password</td> 
<td> <html:password name="loginForm" property="password"/></td> </tr>
 <tr> <td colspan="2" align="right">
<html:submit value="login"/></td> </tr>
</table></td></tr>
</table>
</html:form>
</body>
</html>

web.xml

<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns="http://java.sun.com/xml/ns/javaee" 
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" version="2.5" 
xsi:schemaLocation="http://java.sun.com/xml/ns/javaee   
http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd">
<servlet>
<servlet-name>action</servlet-name>
<servlet-class>org.apache.struts.action.ActionServlet</servlet-class>
<init-param>
<param-name>config</param-name>
<param-value>/WEB-INF/struts-config.xml</param-value>
</init-param>
<init-param>
<param-name>debug</param-name>
<param-value>3</param-value>
</init-param>
<init-param>
<param-name>detail</param-name>
<param-value>3</param-value>
</init-param>
<load-on-startup>0</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>action</servlet-name>
<url-pattern>*.do</url-pattern>
</servlet-mapping>
<welcome-file-list>
<welcome-file>index.jsp</welcome-file>
</welcome-file-list>
</web-app>

struts-config.xml

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE struts-config 
PUBLIC "-//Apache Software Foundation//DTD Struts Configuration 1.3//EN" 
"http://struts.apache.org/dtds/struts-config_1_3.dtd">
<struts-config>
<form-beans>
<form-bean name="loginForm" type="org.r4r.struts.LoginForm"/>
</form-beans>
<global-exceptions />
<global-forwards>
<forward name="login" path="/login.do"/>
</global-forwards>
<action-mappings>
<action path="/login" type="org.r4r.struts.LoginAction" name="loginForm">
<forward name="success" path="/success.jsp"/>
<forward name="error" path="/error.jsp"/>
</action>
</action-mappings>
<message-resources parameter="org.r4r.struts.ApplicationResources" />
</struts-config> 

LoginForm.java

package org.r4r.struts;

import org.apache.struts.action.ActionForm;

@SuppressWarnings("serial")
public class LoginForm extends ActionForm {
	private String name;
	private String password;
	public String getName() {
		return name;
	}
	public void setName(String name) {
		this.name = name;
	}
	public String getPassword() {
		return password;
	}
	public void setPassword(String password) {
		this.password = password;
	}
}

LoginAction.java

package org.r4r.struts;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.apache.struts.action.Action;
import org.apache.struts.action.ActionForm;
import org.apache.struts.action.ActionForward;
import org.apache.struts.action.ActionMapping;

public class LoginAction extends Action {
public ActionForward execute(ActionMapping mapping,ActionForm form,
	HttpServletRequest request,HttpServletResponse response){
LoginForm loginForm=(LoginForm)form;
DAO dao=new DAO();
if(dao.find(loginForm.getName(), loginForm.getPassword())){
return mapping.findForward("success");
}else{
return mapping.findForward("error");
}
}
}

DAO.java

package org.r4r.struts;

import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.PreparedStatement;
import java.sql.ResultSet;

public class DAO {
public boolean find(String name,String password){
try{
Class.forName("com.mysql.jdbc.Driver");
Connection con=DriverManager.getConnection
	("jdbc:mysql://localhost/test","root","root");
PreparedStatement stmt=con.prepareStatement
	("select * from user where name=? and password=?");
stmt.setString(1, name);
stmt.setString(2, password);
ResultSet rset=stmt.executeQuery();
while(rset.next()){
return true;
}
}catch(Exception e){
System.out.println(e);
}
return false;
}
}

success.jsp

<%@taglib uri="http://struts.apache.org/tags-bean" prefix="bean" %>
<html>
<head>
<title>Login Form</title>
</head>
<body>
<table  border="1" bordercolor="red">
<tr> <td width="500px" align="center" height="50px" 
style="background: gray;" valign="middle">
<h3 style="color:lime;">
Login Example in Struts 1.3 Using MySql Database</h3></td> </tr>
<tr><td align="center" width="250px" 
height="150px" style="background: gray;">
<table>
<tr> <td>Welcome, <bean:write name="loginForm" property="name"/>
<br/><br/><a href="index.jsp">Logout</a>
</td> </tr>
</table></td></tr>
</table>
</body>
</html>

error.jsp

<%@taglib uri="http://struts.apache.org/tags-bean" prefix="bean" %>
<html>
<head>
<title>Login Form</title>
</head>
<body>
<table  border="1" bordercolor="red">
<tr> <td width="500px" align="center" height="50px" 
style="background: gray;color:red;" valign="middle">
<h3>Sorry, <bean:write name="loginForm" property="name"/></h3><h4>
You are not valid user please try again.</h4></td> </tr>
<tr><td align="center" width="250px" height="150px" style="background: gray;">
<table>
<tr> <td>
<br/><br/><jsp:include page="index.jsp"></jsp:include>
</td> </tr>
</table></td></tr>
</table>
</body>
</html>

Output


 

 


Previous Home Next

Business Logic Beans:- Model Components in Struts Frameworks

R4R Right ArrowStrutsRight Arrow Struts BasicRight ArrowCore Struts Basic Tutorial

New Updates

R4R
R4R
R4R
R4R
R4R
R4R
R4R
R4R