Showing posts with label Examples. Show all posts
Showing posts with label Examples. Show all posts

Wednesday 14 August 2013

Top Most Struts 2.X - XML Based Validation Code

This sample explains about how to do a XML based Validation in Struts 2.

1) Create a Dynamic Web Project in Eclipse
2) Create the below jsp pages

  •     index.jsp
  •     login.jsp
  •     success.jsp
3) Create the below pages in src folder
  • global.properties
  • LoginAction.properties
  • LoginAction-validation.xml
  • LoginAction.java
  • struts.xml
4) web xml

index.jsp


<html>
<body>
<a href="login.jsp">Click here to view validation demo</a><br>
</body>
</html>

login.jsp

<%@ taglib uri="/struts-tags" prefix="s"%>
<html>
<body>

<h1>Welcome to Struts2 validation demo</h1>
<s:form action="login">
<s:textfield name="userName" label="UserName" />
<br>
<s:password name="pass" label="Password" />
<br>
<s:submit value="Login" />
<br>
</s:form>
</body>
</html>

success.jsp

<html>
<body>
<h1> Page is validated successfully</h1>
</body>
</html>

global.properties

myapp.login.page.label.username=MyUserName

LoginAction.properties

myapp.login.page.message.username.required=UserName is required
myapp.login.page.message.pass.required=Password is required
myapp.login.page.message.username.invalid=UserName is Invalid

LoginAction-validation.xml

<!DOCTYPE validators PUBLIC "-//OpenSymphony Group//XWork Validator 1.0.2//EN"
       "http://www.opensymphony.com/xwork/xwork-validator-1.0.2.dtd">
<validators>
  <field name="userName">
      <field-validator type="requiredstring">
          <message>User Name is required.</message>
      </field-validator>
  </field>
  <field name="pass">
      <field-validator type="requiredstring">
        <message key="myapp.login.page.message.pass.required" />
      </field-validator>
  </field>
</validators>

import com.opensymphony.xwork2.ActionSupport;

LoginAction.java

public class LoginAction extends ActionSupport{

private String userName;
private String pass;
public String getUserName() {
return userName;
}

public void setUserName(String userName) {
this.userName = userName;
}

public String getPass() {
return pass;
}
public void setPass(String pass) {
this.pass = pass;
}

public String execute() throws Exception {
System.out.println("execute method");
return SUCCESS;
}
}

struts.xml

<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE struts PUBLIC
    "-//Apache Software Foundation//DTD Struts Configuration 2.0//EN"
    "http://struts.apache.org/dtds/struts-2.0.dtd">

<struts>


<package name="default" namespace="/" extends="struts-default">
<action name="login" class="LoginAction">
<result>/success.jsp</result>
<result name="input">/login.jsp</result>
</action>
</package>

</struts>


web.xml

<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://java.sun.com/xml/ns/javaee" xmlns:web="http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd" 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">
  <display-name>Struts2Example2</display-name>
    <filter>
<filter-name>struts2</filter-name>
<filter-class>
org.apache.struts2.dispatcher.ng.filter.StrutsPrepareAndExecuteFilter</filter-class>
<init-param>
<param-name>struts.devMode</param-name>
<param-value>true</param-value>
</init-param>
</filter>

<filter-mapping>
<filter-name>struts2</filter-name>
<url-pattern>/*</url-pattern>
</filter-mapping>

<welcome-file-list>
<welcome-file>index.jsp</welcome-file>
</welcome-file-list>
</web-app>

Labels: ,

Tuesday 13 August 2013

Top Most Struts 2.x Tags Demo code

This example shows how to use struts 2 tags:

Struts 2 : Check box list
Struts 2: Select
Struts 2: File
Struts 2: Combo Box
Struts 2: Option Transfer Select
Struts 2: Updown Select
Struts 2: Double Select

(All these tags are available in result.jsp)

Struts 2: iterator
Struts 2: If else

(These tags are available in iterator_tag.jsp )

Struts 2:  Dynamic Dispatch

( These tags examples are available in dynamic_dispatch_demo.jsp) 

Struts 2: Action Message

( These tags examples are available in success.jsp) 

1) Create a Dynamic Web Project
2) Create the following jsp pages under WebContent folder
  • index.jsp
  • result.jsp
  • dynamic_dispatch_demo.jsp
  • dispatch_success.jsp
  • dispatch_demo.jsp
  • iterator_tag.jsp
  • success.jsp

3) Create the Action Class in src folder

  • DynamicDispatchAction.java
  • IteratorTagAction.java
  • SaveUserAction.java
  • ShowTagsAction.java
  • UserDispatchAction.java

4) Map the actions and jsp in struts.xml under src folder

  • struts.xml
  • web.xml

index.jsp


<html>
<body>
<a href="showTags">Click here to view tags demo</a><br>
<a href="dispatch_demo.jsp">Click here to view Dispatch Action demo</a><br>
<a href="iteratorTag">Iterator TAG demo</a><br>
</body>
</html>

result.jsp

<%@ taglib uri="/struts-tags" prefix="s"%>

<html>
<body>

 <h1>Welcome to Struts2 tags demo</h1>
<s:actionerror />

 <s:form action="saveMyUser">
<s:textfield name="userName" label="UserName" />
<br>
<s:password name="password" label="Password" />
<br>
<s:textarea name="address" label="Address" />
<br>
<s:radio name="status" label="Status" list="{'Approved','UnApproved'}" />
<br>

 <s:radio name="country" label="Country" list="countries"
value="{'UK'}" />
<br>

 <s:checkboxlist list="countries" name="countryCheck"
label="CountrWithCheckbox" value="{'USA','Srilanka'}"></s:checkboxlist>
<s:label name="hello" value="Hello How are you"></s:label>

 <s:select list="countries" name="countrySelect"
label="CountryWithSelectBox"></s:select>
<br>



 <s:file name="myFIle" label="SelectFile"></s:file>

 <s:combobox list="countries" name="comboBox"
label="CountryWithComboBox"></s:combobox>

 <s:optiontransferselect label="Employee Records"
name="leftSideEmployeeRecords" leftTitle="LeftSide"
rightTitle="selected employees"
list="{'Deepak Kumar', 'Sushil Kumar','Vinod Kumar','Deepak Monthy',
 'Deepak Mihanti', 'Sushil Kumar', 'Ravi Kant Kumar'}"
headerKey="headerKey" headerValue="--- Please Select ---"
doubleName="rightSideEmployeeRecords"
doubleList="{'Amar Deep Patel', 'Amit Kumar','Chandan Kumar', 
  'Noor Kumar','Tammana Kumari'}"
doubleHeaderKey="doubleHeaderKey"
doubleHeaderValue="--- Please Select ---" />

 <s:updownselect
list="#{'01':'January','02':'February','03':'March','04':'April','05':'May','06':'June','07':'July','08':'August','09':'September','10':'October','11':'November','12':'December'}"
name="daysname" headerKey="1" headerValue="-- Please Select --"
moveUpLabel="Move Up" moveDownLabel="Move Down"
selectAllLabel="Select All" />

 <s:doubleselect label="Select Item"
headerValue="--- Please Select ---" headerKey="1"
list="{'Color','Fruits','items'}" doubleName="dishes"
doubleList="top == 'Color' ? {'Black','Green','White',
 'Yellow','Red','Pink'} : (top == 'Fruits' ? { 'Apple','Banana','Grapes','Mango'}: {'pen','laptop','mobile'})" />


 <s:submit value="SaveUser"></s:submit>
</s:form>

</body>
</html>

dispatch_demo.jsp

<%@ taglib uri="/struts-tags" prefix="s"%>
<html>
<body>

 <s:form action="saveUser">
<s:submit value="SaveUser"/>
</s:form> 

<s:form action="updateUser">
<s:submit value="UpdateUser"/>
</s:form> 

<s:form action="deleteUser">
<s:submit value="DeleteUser"/>
</s:form> 

<s:form action="listUser">
<s:submit value="ListUser"/>
</s:form> 
</body>
</html>

dynamic_dispatch_demo.jsp

<%@ taglib uri="/struts-tags" prefix="s"%>
<html>
<body>

 <s:form action="saveUser">
<s:submit value="SaveUser"/>
</s:form> 

<s:form action="updateUser">
<s:submit value="UpdateUser"/>
</s:form> 

<s:form action="deleteUser">
<s:submit value="DeleteUser"/>
</s:form> 

<s:form action="listUser">
<s:submit value="ListUser"/>
</s:form> 
</body>
</html>


dispatch_success.jsp

<html>
<body>

 <h1>Request is dispatched successfully</h1>
</body>
</html>

success.jsp

<%@ taglib uri="/struts-tags" prefix="s"%>
<html>
<body>
<h1> Data is saved successfully</h1>
<s:actionmessage/>
</body>
</html>

ShowTagsAction.java

import java.util.ArrayList;
import java.util.List;

public class ShowTagsAction {
List<String> countries;
List<User> userList;

public List<User> getUserList() {
return userList;
}

 public void setUserList(List<User> userList) {
this.userList = userList;
}

public String execute() throws Exception {
countries = new ArrayList<String>();

countries.add("India");
countries.add("USA");
countries.add("UK");
countries.add("Kanada");
countries.add("Srilanka");

return "success";
}

 public List<String> getCountries() {
return countries;
}

 public void setCountries(List<String> countries) {
this.countries = countries;
}
}

UserDispatchAction.java


public class UserDispatchAction {

public String save(){
System.out.println("save method of DispatchAction ");
return "success";
}
public String delete(){
System.out.println("delete method of DispatchAction ");
return "success";
}
public String update(){
System.out.println("update method of DispatchAction ");
return "success";
}
public String list(){
System.out.println("list method of DispatchAction ");
return "success";
}
}

DynamicDispatchAction.java


public class DynamicDispatchAction {

public String save(){
System.out.println("save method of DispatchAction ");
return "success";
}
public String delete(){
System.out.println("delete method of DispatchAction ");
return "success";
}
public String update(){
System.out.println("update method of DispatchAction ");
return "success";
}
public String list(){
System.out.println("list method of DispatchAction ");
return "success";
}
}

SaveUserAction.java

import java.util.ArrayList;
import java.util.List;
import com.opensymphony.xwork2.ActionSupport;
public class SaveUserAction extends ActionSupport{

private String userName;
private String password;
private String address;
List<String> countries;
public String getUserName() {
return userName;
}
public void setUserName(String userName) {
this.userName = userName;
}
public String getPassword() {
return password;
}
public void setPassword(String password) {
this.password = password;
}
public String getAddress() {
return address;
}
public void setAddress(String address) {
this.address = address;
}
public String execute() throws Exception {
System.out.println("UserName = "+userName);
System.out.println("Password = "+password);
System.out.println("Address = "+address);
if(userName.equals(password)){
List<String> messages = new ArrayList<String>();
messages.add("Data sent to DB");
setActionMessages(messages);
return "success";
}else{
List<String> errors = new ArrayList<String>();
errors.add("Data is invalid");
setActionErrors(errors);
countries = new ArrayList<String>();
countries.add("India");
countries.add("USA");
countries.add("UK");
countries.add("Kanada");
countries.add("Srilanka");
return "input";
}
}

public List<String> getCountries() {
return countries;
}
public void setCountries(List<String> countries) {
this.countries = countries;
}
}

IteratorTagAction.java

import java.util.ArrayList;
import java.util.List;
public class IteratorTagAction {
List<String> countries;
List<User> userList;
public String execute() throws Exception {
countries = new ArrayList<String>();
countries.add("India");
countries.add("USA");
countries.add("UK");
countries.add("Canada");
countries.add("Srilanka");
userList = new ArrayList<User>();
User user = new User();
user.setFirstName("Venkata");
user.setLastName("reddy");
user.setUserName("vreddy");
user.setSalary(400);
userList.add(user);
user = new User();
user.setFirstName("Ram");
user.setLastName("Mohan");
user.setUserName("rmohan");
user.setSalary(500);
userList.add(user);
user = new User();
user.setFirstName("Amod");
user.setLastName("Mudholkar");
user.setUserName("aamod");
user.setSalary(600);
userList.add(user);
return "success";
}

public List<String> getCountries() {
return countries;
}

public void setCountries(List<String> countries) {
this.countries = countries;
}

public List<User> getUserList() {
return userList;
}

public void setUserList(List<User> userList) {
this.userList = userList;
}
}

class User{
private Integer salary;
private String firstName;
private String lastName;
private String userName;
public String getFirstName() {
return firstName;
}
public void setFirstName(String firstName) {
this.firstName = firstName;
}
public String getLastName() {
return lastName;
}
public void setLastName(String lastName) {
this.lastName = lastName;
}
public String getUserName() {
return userName;
}
public void setUserName(String userName) {
this.userName = userName;
}
public Integer getSalary() {
return salary;
}
public void setSalary(Integer salary) {
this.salary = salary;
}
}

struts.xml

<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE struts PUBLIC
    "-//Apache Software Foundation//DTD Struts Configuration 2.0//EN"
    "http://struts.apache.org/dtds/struts-2.0.dtd">

<struts>
    <package name="default" namespace="/" extends="struts-default">

    <action name="showTags" class="ShowTagsAction">
    <result>/result.jsp</result>
    </action>
   
    <action name="saveMyUser" class="SaveUserAction">
    <result>/success.jsp</result>
    <result name="input">/result.jsp</result>
    </action>
        
        <action name="saveUser" class="UserDispatchAction" method="save">
        <result>/dispatch_success.jsp</result>
        </action>
        
        <action name="updateUser" class="UserDispatchAction" method="update">
        <result>/dispatch_success.jsp</result>
        </action>
        
        <action name="deleteUser" class="UserDispatchAction" method="delete">
        <result>/dispatch_success.jsp</result>
        </action>
        
        <action name="listUser" class="UserDispatchAction" method="list">
        <result>/dispatch_success.jsp</result>
        </action>
        <action name="iteratorTag" class="IteratorTagAction">
        <result>/iterator_tag.jsp</result>
        </action>
    </package>

   

</struts>


web.xml 

<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://java.sun.com/xml/ns/javaee" xmlns:web="http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd" 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">
  <display-name>Struts2Example2</display-name>
    <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>

<welcome-file-list>
<welcome-file>index.jsp</welcome-file>
</welcome-file-list>
</web-app>

Struts Validations Example                               Struts 2: XML Validation Demo
Labels: ,

Tuesday 6 August 2013

Top Most Struts 2.x Validation Example

Here we will see how to write and implement the Struts 2.x Validation.

Create a Web Application project in Eclipse

1) Write login.jsp, login_success.jsp and login_failed.jsp under WebContent folder
2) Design the web.xml to point the the login.jsp
3) Develop the LoginAction.java , UserModel.java under src folder
4) Write the required validation properties in LoginAction.properties under src folder
5) struts.xml will the action mapping under src folder

The code for each file :

login.jsp

<%@ taglib uri="/struts-tags" prefix="struts2"%>
<html>
<body>
<h2> Welcome to STruts2 validation demo</h2>
<struts2:form action="login">
<struts2:textfield name="userName" label="LoginName"/>
<struts2:password name="password" label="Password"/>
<struts2:submit value="Login"/>
</struts2:form>
</body>

</html>

login_success.jsp

<html>
<body>
<h2> user is successfully logged in</h2>
</body>
</html>

login_failed.jsp

<html>
<body>
<h2> UserName/password is invalid</h2>
</body>
</html>

web.xml

<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns="http://java.sun.com/xml/ns/javaee" xmlns:web="http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd"
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">
<display-name>Struts2Example2</display-name>

 <filter>
<filter-name>Struts2Controller</filter-name>
<filter-class>org.apache.struts2.dispatcher.FilterDispatcher</filter-class>
</filter>

 <filter-mapping>
<filter-name>Struts2Controller</filter-name>
<url-pattern>/*</url-pattern>
</filter-mapping>


 <welcome-file-list>
<welcome-file>login.jsp</welcome-file>
</welcome-file-list>
</web-app>

LoginAction.java


import com.opensymphony.xwork2.ActionSupport;
public class LoginAction extends ActionSupport{

private String userName;
private String password;

public String getUserName() {
return userName;
}
public void setUserName(String userName) {
this.userName = userName;
}
public String getPassword() {
return password;
}

 public void setPassword(String password) {
this.password = password;
}
public void validate() {
System.out.println("valdate method");
System.out.println("userName == "+userName);
System.out.println("password == "+password);

if(userName == null || userName.length() == 0){
System.out.println("user name is empty");
addFieldError("userName", getText("myapp.struts2.userName.required"));
}

if(password == null || password.length() == 0){
System.out.println("password is empty");
addFieldError("password", "Password is mandatory");
}
}

public String execute() throws Exception {
System.out.println("execute method");
boolean result = UserModel.isUserNameAndPasswordExist(userName, password);
if(result){
return "success";
}else{
return "failure";
}

}
}

UserModel.java

import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.util.ArrayList;

public class UserModel {

private static Connection con;
static {
try{
Class.forName("oracle.jdbc.driver.OracleDriver");
con = DriverManager.getConnection(
"jdbc:oracle:thin:@localhost:1521:XE", "user", "passwd");
}catch(Exception e){
e.printStackTrace();
}
}
public static boolean isUserNameAndPasswordExist (
String userName,String password){
boolean result = false;
try{
String sql = "select * from user where password = ? and login_name = ?";
PreparedStatement ps = con.prepareStatement(sql);
ps.setString(2, userName);
ps.setString(1, password);
ResultSet rs = ps.executeQuery();
if(rs.next() && rs.getInt(1)> 0){
result = true;
}
}catch(SQLException e){
e.printStackTrace();
}
return result;
}
}

LoginAction.properties

myapp.struts2.userName.required=UserName is required

struts.xml

<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE struts PUBLIC
    "-//Apache Software Foundation//DTD Struts Configuration 2.0//EN"
    "http://struts.apache.org/dtds/struts-2.0.dtd">

<struts>

  <package name="default" namespace="/" extends="struts-default">    
   
  <action name="login" class="LoginAction">
 
  <result name="success">/login_success.jsp</result>
  <result name="failure">/login_failed.jsp</result>
  <result name="input">/login.jsp</result>
  </action>
  </package>

</struts>

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