Jsp , struts 2 example in eclipse (Struts login application )

Jsp , struts 2 example in eclipse JSP (JavaServer Page) :

Jsp , struts 2 example in eclipse JavaServer Page allows programmer to embed java code directly in the HTML code.So we can easily …embed java code in web pages.
Jsp can call custom java classes (taglibs) with HTML-like tags.
Separates both dynamic content(java code) and presentation(HTML code) of a Web page.

Jsp , struts 2 example in eclipse Struts :

Jsp , struts 2 example in eclipse Apache struts is an open source Java EE framework to develop web applications.It supports model-view-controller (MVC) architecture.It is a widely used framework for application development.

Jsp , struts 2 example in eclipse It is not an installable software , so add the struts related jar files to the lib folder.

Basic requirements for Jsp , struts 2 example .

Softwares :

Java	(Download).
Oracle Database	(Download).
GlassFish server	(Download).
Eclipse IDE	(Download).

Jar files: (Download).

commons-fileupload-1.3.1.jar
commons-io-2.2.jar
commons-lang3-3.1.jar
commons-logging-1.1.3.jar
commons-logging-api-1.1.jar
freemarker-2.3.19.jar
javassist-3.11.0.GA.jar
ognl-3.0.6.jar
struts2-core-2.3.16.3.jar
xwork-core-2.3.16.3.jar

Source files :

login.jsp
LoginActionClass.java
struts.xml
web.xml
success.jsp
error.jsp

Jsp , struts 2 example code :

Jsp , struts 2 example in eclipse Directory Structure in eclipse :

Jsp , struts 2 example in eclipse Execution Flow :

1 . Server accepts the request from the client window and it verifies the web.xml <url-pattern> from the web application.

2. Next it will check the <filter-name> inside the <filter-mapping>.

3. Later checks for the matching <filter-name> in the web.xml.

4. If the identical name exists , it will call the StrutsPrepareAndExecuteFilter .

5. Next it will check the action name (login) in the struts.xml .

6. After that ,it loads the class and execute the execute() method.

7. Based on the execution , it loads the appropriate response page(Exampel :success.jsp).

8. Finally the response page goes to the client window.

Jsp , struts 2 example in eclipse login.jsp

 <%@ page language="java" contentType="text/html; charset=ISO-8859-1"
   pageEncoding="ISO-8859-1"%>
<%@ taglib prefix="h" uri="/struts-tags" %>
<html>
<body>
 
<h:form action="login" method="post"> 
<h:textfield name="userName" label="Enter User Name" /><br>
<h:password name="userPassword" label="Enter Password" /><br>
<h:submit value="Login" align="center" />
 </h:form>
</body>
</html>

<%@ page language="java" contentType="text/html; charset=ISO-8859-1"

pageEncoding="ISO-8859-1"%>

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

<html>

<body>

<h:form action="login" method="post">

<h:textfield name="userName" label="Enter User Name" /><br>

<h:password name="userPassword" label="Enter Password" /><br>

<h:submit value="Login" align="center" />

</h:form>

</body>

</html>

Jsp , struts 2 example in eclipse 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">
 <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>login.jsp</welcome-file>
</welcome-file-list>
</web-app>

<?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">

<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>login.jsp</welcome-file>

</welcome-file-list>

</web-app>

Jsp , struts 2 example in eclipse LoginActionClass.java

package strutsApp;

import com.opensymphony.xwork2.ActionSupport;

public class LoginActionClass  extends ActionSupport {
     private static final long serialVersionUID = 1L;
     
        private String userName,userPassword;
     
       
        public String execute()
        {
            
            if(userName.equals("java2db") && userPassword.equals("password"))
            {
                System.out.println("verification is success");
                return "success";
            }else
                return "error"; 
        }


        public String getUserName() {
            return userName;
        }

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

        public String getUserPassword() {
            return userPassword;
        }

        public void setUserPassword(String userPassword) {
            this.userPassword = userPassword;
        }
     
}

package strutsApp;

import com.opensymphony.xwork2.ActionSupport;

public class LoginActionClass extends ActionSupport {

private static final long serialVersionUID = 1L;

private String userName,userPassword;

public String execute()

{

if(userName.equals("java2db") && userPassword.equals("password"))

{

System.out.println("verification is success");

return "success";

}else

return "error";

}

public String getUserName() {

return userName;

}

public void setUserName(String userName) {

this.userName = userName;

}

public String getUserPassword() {

return userPassword;

}

public void setUserPassword(String userPassword) {

this.userPassword = userPassword;

}

Jsp , struts 2 example in eclipse 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>
<include file="struts-default.xml"/>
<package name="strutsApp" extends="struts-default">
<action name="login" class="strutsApp.LoginActionClass">

<interceptor-ref name="timer"/>
<interceptor-ref name="logger"/>
<interceptor-ref name="completeStack"/>

<result name="success">/success.jsp</result>
<result name="error">/error.jsp</result>
</action>
</package>
</struts>

<?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">

<interceptor-ref name="timer"/>

<interceptor-ref name="logger"/>

<interceptor-ref name="completeStack"/>

<result name="success">/success.jsp</result>

<result name="error">/error.jsp</result>

</action>

</package>

</struts>

Jsp , struts 2 example in eclipse success.jsp

<%@ taglib prefix="h" uri="/struts-tags" %>
Hello <h:property value="userName" />, you have been successfully logged in

1 2	<%@ taglib prefix="h" uri="/struts-tags" %> Hello <h:property value="userName" />, you have been successfully logged in

Jsp , struts 2 example in eclipse error.jsp

<%@ taglib prefix="s" uri="/struts-tags" %>
Invalid User Name/Password....

1 2	<%@ taglib prefix="s" uri="/struts-tags" %> Invalid User Name/Password....

Jsp , struts 2 example in eclipse Execution result :

Enter the User name and password in the login screen and click Login button.

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Comments

Bop says:

November 2, 2015 at 7:58 am

Please post Spring…..

Reply

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