Struts

<?xml version="1.0" encoding="UTF-8"?>
<web-app version="2.5" 
xmlns="http://java.sun.com/xml/ns/javaee" 
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" 
xsi:schemaLocation="http://java.sun.com/xml/ns/javaee 
http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd">
<welcome-file-list>
<welcome-file>index.jsp</welcome-file>
</welcome-file-list>
<filter>
<filter-name>struts2</filter-name>
<filter-class>
org.apache.struts2.dispatcher.ng.filter
.StrutsPrepareAndExecuteFilter
</filter-class>
</filter>
<filter-mapping>
<filter-name>struts2</filter-name>
<url-pattern>/*</url-pattern>
</filter-mapping></web-app>

<%@taglib uri="/struts-tags" prefix="s"%>
<s:form action="fetch">
<s:textfield name="name" label="Name"/>
<s:submit value="Submit"/>
</s:form>

<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE struts PUBLIC "-
//Apache Software Foundation
//DTD Struts Configuration
 2.1//EN" "http://struts.apache.org/dtds
 /struts-2.1.dtd">
<struts>
<package name="demo" extends="struts-default">
<action name="fetch" class="org.r4r.UserListAction">
<result name="success">/fetch.jsp</result>
</action>
<action name="update" class="org.r4r.UserListAction"
method="update">
<result name="success">/index.jsp</result>
<result name="input">/fetch.jsp</result>
<result name="error">/fetch.jsp</result>
</action>
</package>
</struts> 

package org.r4r;
import java.util.List;
import com.opensymphony.xwork2.ActionSupport;
public class UserListAction extends ActionSupport{
	private static final long serialVersionUID = 1L;
	String name;
	String address;
	String city;
	String state;
	private UserList userlist;
	private List<UserList> userlistlist;
	DAO dao=new DAO();
	public String execute(){
	userlistlist=dao.fetch(getName());
	return "success";
	}
	public String update(){
	if(dao.update(getName(),getAddress(), getCity(), 
		getState())){
	//this.addActionError("You are successfully update");
	return "success";}
	else
	this.addActionError("Your data is not Update");
	return "error";
	}
	public UserList getUserlist() {
	return userlist;
	}
	public void setUserlist(UserList userlist) {
	this.userlist = userlist;
	}
	public List<UserList> getUserlistlist() {
	return userlistlist;
	}
	public void setUserlistlist(List<UserList>
		userlistlist) {
	this.userlistlist = userlistlist;
	}
	public String getName() {
	return name;
	}
	public void setName(String name) {
	this.name = name;
	}
	public String getAddress() {
	return address;
	}
	public void setAddress(String address) {
	this.address = address;
	}
	public String getCity() {
	return city;
	}
	public void setCity(String city) {
	this.city = city;
	}
	public String getState() {
	return state;
	}
	public void setState(String state) {
	this.state = state;
	}
}

package org.r4r;
public class UserList {
String name;
String address;
String city;
String state;
public UserList() {
super();
/ TODO Auto-generated constructor stub 
}
public UserList(String name, String address, 
String city, String state) { 
super();
this.name = name;
this.address = address;
this.city = city;
this.state = state;
}
public String getName() {
return name; 
}
public void setName(String name) { 
this.name = name;
}
public String getAddress() {
return address;
}
public void setAddress(String address) {
this.address = address;
}
public String getCity() { 
return city;
}
public void setCity(String city) { 
this.city = city; 
}
public String getState() {
return state;
}
public void setState(String state) { 
this.state = state;
}
}

package org.r4r;
import java.sql.Connection;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.util.*;
public class DAO {
public List<UserList> fetch(String name){
try{
Connection con=ConnectionProvider.getConnection();
PreparedStatement stmt=con.prepareStatement
	("select * from userlist where name=?");
stmt.setString(1, name);
ResultSet rset=stmt.executeQuery();
UserList userlist;
List<UserList> list=new ArrayList<UserList>();
while(rset.next()){
userlist=new UserList();
userlist.setName(rset.getString(1));
userlist.setAddress(rset.getString(2));
userlist.setCity(rset.getString(3));
userlist.setState(rset.getString(4));
list.add(userlist);
}
return list;		
}catch(Exception e){
System.out.println(e);
}
return null;
}
public boolean update(String name,String address,
	String city,String state){
try{
Connection con=ConnectionProvider.getConnection();
PreparedStatement stmt=con.prepareStatement
("update userlist set name=?,address=?,city=?,state=? where name=?");
stmt.setString(1,name);
stmt.setString(2,address);
stmt.setString(3,city);
stmt.setString(4,state);
stmt.setString(5,name);
stmt.executeQuery();
return true;
}catch(Exception e){
System.out.println(e);
}
return false;
}
}

package org.r4r;
import java.sql.Connection;
import java.sql.DriverManager;
public class ConnectionProvider {
public static Connection getConnection(){
Connection con=null;
try{
Class.forName("oracle.jdbc.driver.OracleDriver");
con=DriverManager.getConnection
("jdbc:oracle:thin:@localhost:1521:xe","system","system");
}catch(Exception e){
System.out.println(e);
}
return con;
}
}

<%@taglib uri="/struts-tags" prefix="s"%>
<s:actionerror/>
<s:form action="update">
<s:iterator value="userlistlist" var="userlist">
<s:textfield name="name" label="Name"/>
<s:textfield name="address" label="Address"/>
<s:textfield name="city" label="City"/>
<s:textfield name="state" label="State"/>
</s:iterator>
<s:submit value="Submit"/>
</s:form>