struts2 Archives - Ebhor.com

How to get client IP address in java Struts2

May 21, 2023May 21, 2023 by manish

When users submit a form along with form data we can get the IP address of the client. Let’s see one simple program to demonstrate this request.getHeader(“X-FORWARDED-FOR”); is used to get the address of client in java/jsp/struts and in spring.

   public class Post extends ActionSupport{
           public String execute(){
              HttpServletRequest request = ServletActionContext.getRequest();
              String ipAdd = request.getHeader("X-FORWARDED-FOR");
              if (ipAdd == null) {
                  ipAdd = request.getRemoteAddr();
              }
                System.out.pritln("Ip address of requested client is "+ipAdd); 
               return SUCCESS;
           }
        }

public class Post extends ActionSupport{

public String execute(){

HttpServletRequest request = ServletActionContext.getRequest();

String ipAdd = request.getHeader("X-FORWARDED-FOR");

if (ipAdd == null) {

ipAdd = request.getRemoteAddr();

}

System.out.pritln("Ip address of requested client is "+ipAdd);

return SUCCESS;

}

Passing parameter from jsp page to struts2 action

May 15, 2023 by manish

Project Explorer Library files addstudent.jsp

&lt;%@page contentType="text/html" pageEncoding="UTF-8"%&gt;
&lt;%@taglib prefix="s" uri="/struts-tags" %&gt;


    
        <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
        <title>Student Registration</title>
    
    

<h1>Enter Student Details</h1>

        <s:form action="add-student" method="post">
            <s:textfield name="name" label="Name" placeholder="Name of the student">
            <s:textfield name="rollNo" label="Roll No" placeholder="Roll no of the student">
            <s:textfield name="branch" label="Branch" placeholder="Branch of the student">
            <s:textfield name="semester" label="Semester " placeholder="Semester of the student">
            <s:submit value="Submit Detail">
        </s:submit></s:textfield></s:textfield></s:textfield></s:textfield></s:form>

<%@page contentType="text/html" pageEncoding="UTF-8"%>

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

<title>Student Registration</title>

<h1>Enter Student Details</h1>

<s:form action="add-student" method="post">

<s:textfield name="name" label="Name" placeholder="Name of the student">

<s:textfield name="rollNo" label="Roll No" placeholder="Roll no of the student">

<s:textfield name="branch" label="Branch" placeholder="Branch of the student">

<s:textfield name="semester" label="Semester " placeholder="Semester of the student">

<s:submit value="Submit Detail">

</s:submit></s:textfield></s:textfield></s:textfield></s:textfield></s:form>

struts.xml

<struts>
    <package name="default" extends="struts-default">
       <action name="add-student" class="com.ebhor.StudentAction">
            <result name="success">/pages/showstudent.jsp</result>
        </action>
    </package>
</struts>

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

</action>

</package>

</struts>

StudentAction.java

package com.ebhor;

import com.opensymphony.xwork2.ActionSupport;

public class Student extends ActionSupport {

    private String name;
    private String rollNo;
    private String branch;
    private String semester;

    public String execute() {
        System.out.println("Name " + getName() + " rollNo " + getRollNo() 
                          + " branch  " + getBranch() + " smester " + getSemester());
        return SUCCESS;
    }

    public String getName() {
        return name;
    }

    public void setName(String name) {
        this.name = name;
    }

    public String getRollNo() {
        return rollNo;
    }

    public void setRollNo(String rollNo) {
        this.rollNo = rollNo;
    }

    public String getBranch() {
        return branch;
    }

    public void setBranch(String branch) {
        this.branch = branch;
    }

    public String getSemester() {
        return semester;
    }

    public void setSemester(String semester) {
        this.semester = semester;
    }

}

package com.ebhor;

import com.opensymphony.xwork2.ActionSupport;

public class Student extends ActionSupport {

private String name;

private String rollNo;

private String branch;

private String semester;

public String execute() {

System.out.println("Name " + getName() + " rollNo " + getRollNo()

+ " branch " + getBranch() + " smester " + getSemester());

return SUCCESS;

}

public String getName() {

return name;

}

public void setName(String name) {

this.name = name;

}

public String getRollNo() {

return rollNo;

}

public void setRollNo(String rollNo) {

this.rollNo = rollNo;

}

public String getBranch() {

return branch;

}

public void setBranch(String branch) {

this.branch = branch;

}

public String getSemester() {

return semester;

}

public void setSemester(String semester) {

this.semester = semester;

}

showstudent.jsp

&lt;%@page contentType="text/html" pageEncoding="UTF-8"%&gt;
&lt;%@taglib prefix="s" uri="/struts-tags" %&gt;


    
        <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
        <title>Student Details</title>
    
    

<h1>Student Detail</h1>

        Name: <s:property value="name">
        Roll No: <s:property value="rollNo">
        Branch: <s:property value="branch">
        Semester: <s:property value="semester">
    


</s:property></s:property></s:property></s:property>

<%@page contentType="text/html" pageEncoding="UTF-8"%>

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

<title>Student Details</title>

<h1>Student Detail</h1>

Name: <s:property value="name">

Roll No: <s:property value="rollNo">

Branch: <s:property value="branch">

Semester: <s:property value="semester">

</s:property></s:property></s:property></s:property>

web.xml

<!--?xml version="1.0" encoding="UTF-8"?-->
<web-app version="3.0" 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_3_0.xsd">
   <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>
    <session-config>
        <session-timeout>
            30
        </session-timeout>
    </session-config>
    <welcome-file-list>
        <welcome-file>pages/addstudent.jsp</welcome-file>
    </welcome-file-list>
</web-app>

<web-app version="3.0" 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_3_0.xsd">

<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>

<session-config>

<session-timeout>

</session-timeout>

</session-config>

<welcome-file-list>

<welcome-file>pages/addstudent.jsp</welcome-file>

</welcome-file-list>

</web-app>

Output

Passing object from JSP page to action using model driven

February 12, 2023February 12, 2023 by manish

Project Explorer addstudent.jsp

<%@page contentType="text/html" pageEncoding="UTF-8">
<%@taglib prefix="s" uri="/struts-tags" %>

1 2	<%@page contentType="text/html" pageEncoding="UTF-8"> <%@taglib prefix="s" uri="/struts-tags" %>

Enter Student Details

struts.xml

            /pages/showstudent.jsp

1	/pages/showstudent.jsp

StudentAction.java

package com.ebhor;

import com.opensymphony.xwork2.ActionSupport;
import com.opensymphony.xwork2.ModelDriven;

public class StudentAction extends ActionSupport implements ModelDriven {

    private Student student=new Student();

    public String execute() {
        System.out.println("Name " + getStudent().getName() + " RollNo " + getStudent().getRollNo()
                + " Branch  " + getStudent().getBranch() + " Smester " + getStudent().getSemester());
        return SUCCESS;
    }

    @Override
    public Student getModel() {
        return student;
    }

    public Student getStudent() {
        return student;
    }

    public void setStudent(Student student) {
        this.student = student;
    }

}

package com.ebhor;

import com.opensymphony.xwork2.ActionSupport;

import com.opensymphony.xwork2.ModelDriven;

public class StudentAction extends ActionSupport implements ModelDriven {

private Student student=new Student();

public String execute() {

System.out.println("Name " + getStudent().getName() + " RollNo " + getStudent().getRollNo()

+ " Branch " + getStudent().getBranch() + " Smester " + getStudent().getSemester());

return SUCCESS;

}

@Override

public Student getModel() {

return student;

}

public Student getStudent() {

return student;

}

public void setStudent(Student student) {

this.student = student;

}

Student.java

package com.ebhor;

public class Student implements java.io.Serializable {

    private String name;
    private String rollNo;
    private String branch;
    private String semester;

    public Student() {
    }

    public Student(String name, String rollNo, String branch, String semester) {
        this.name = name;
        this.rollNo = rollNo;
        this.branch = branch;
        this.semester = semester;
    }

    public String getName() {
        return name;
    }

    public void setName(String name) {
        this.name = name;
    }

    public String getRollNo() {
        return rollNo;
    }

    public void setRollNo(String rollNo) {
        this.rollNo = rollNo;
    }

    public String getBranch() {
        return branch;
    }

    public void setBranch(String branch) {
        this.branch = branch;
    }

    public String getSemester() {
        return semester;
    }

    public void setSemester(String semester) {
        this.semester = semester;
    }

}

package com.ebhor;

public class Student implements java.io.Serializable {

private String name;

private String rollNo;

private String branch;

private String semester;

public Student() {

}

public Student(String name, String rollNo, String branch, String semester) {

this.name = name;

this.rollNo = rollNo;

this.branch = branch;

this.semester = semester;

}

public String getName() {

return name;

}

public void setName(String name) {

this.name = name;

}

public String getRollNo() {

return rollNo;

}

public void setRollNo(String rollNo) {

this.rollNo = rollNo;

}

public String getBranch() {

return branch;

}

public void setBranch(String branch) {

this.branch = branch;

}

public String getSemester() {

return semester;

}

public void setSemester(String semester) {

this.semester = semester;

}

showstudent.jsp

&lt;%@page contentType="text/html" pageEncoding="UTF-8"%>;
<%@taglib prefix="s" uri="/struts-tags" %>

1 2	<%@page contentType="text/html" pageEncoding="UTF-8"%>; <%@taglib prefix="s" uri="/struts-tags" %>

Student Detail

        Name: <br>
        Roll No: <br>
        Branch: <br>
        Semester: <br>

Name: <br>

Roll No: <br>

Branch: <br>

Semester: <br>

OUTPUT

Struts2 Json and Jquery Example

February 2, 2023February 2, 2023 by manish

Here we will fetch a action variable’s value in jsp page using JSON and jquery Here I am using struts 2.3.4 for that we have to include struts-2-json-plugin-2.3.4.jar in class path or include it to your lib folder if you are using any IDE. Action class

package example;

import com.opensymphony.xwork2.ActionSupport;

public class HelloJSON extends ActionSupport {

    private String name;
    private String welcomeMessage;

    @Override
    public String execute() {

        System.out.println("Inside Action name is " + getName());
        setWelcomeMessage("Welcome " + getName() + "!!");
        System.out.println(getWelcomeMessage());
        return SUCCESS;
    }

    public String getName() {
        return name;
    }

    public void setName(String name) {
        this.name = name;
    }

    public String getWelcomeMessage() {
        return welcomeMessage;
    }

    public void setWelcomeMessage(String welcomeMessage) {
        this.welcomeMessage = welcomeMessage;
    }
}

package example;

import com.opensymphony.xwork2.ActionSupport;

public class HelloJSON extends ActionSupport {

private String name;

private String welcomeMessage;

@Override

public String execute() {

System.out.println("Inside Action name is " + getName());

setWelcomeMessage("Welcome " + getName() + "!!");

System.out.println(getWelcomeMessage());

return SUCCESS;

}

public String getName() {

return name;

}

public void setName(String name) {

this.name = name;

}

public String getWelcomeMessage() {

return welcomeMessage;

}

public void setWelcomeMessage(String welcomeMessage) {

this.welcomeMessage = welcomeMessage;

}

In struts.xml we have to extend json-default and … Read more

Setting page theme simple

February 2, 2023February 2, 2023 by manish

In particular jsp page we can set that page simple by including following tags In jsp page

<s:set name="theme" value="'simple'" scope="page">
</s:set>

1 2	<s:set name="theme" value="'simple'" scope="page"> </s:set>

This will set page theme simple. It will not generate struts2 tabular format user has to create his own format while using theme simple. Example:

<s:set name="theme" value="'simple'" scope="page">
&lt;%@taglib uri="/struts-tags" prefix="s"%&gt;


    
              <title>Test page</title>
    
    
       <s:textfield name="name" id="name">
       <s:textarea name="address" id="address">
  
 
</s:textarea></s:textfield></s:set>

<s:set name="theme" value="'simple'" scope="page">

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

<s:textfield name="name" id="name">

<s:textarea name="address" id="address">

</s:textarea></s:textfield></s:set>

Flying saucer with struts2

February 2, 2023February 2, 2023 by manish

Flying Saucer takes XML or XHTML and applies CSS 2.1-compliant stylesheets to it, in order to render to PDF (via iText), images, and on-screen using Swing or SWT. The library implements (basically) the entirety of CSS 2.1 and aims to be fully compliant with the W3C specification; it includes a small handful of CSS 3 … Read more

Excel file download in Struts2 using apache POI

February 1, 2023 by manish

Apache POI is a project by Apache Software Foundation. It provides the Java API for Microsoft Documents. You can find out more about Apache POI. You can also download apache POI from here. how to save xls file in java struts2 Here we are explaining how to export data from struts2 action to an XML … Read more

Struts2 Redirect to External URL

February 1, 2023February 1, 2023 by manish

We want to redirect the action to another website or URL.for that syntax is used

&lt;result name="success" type="redirect"&gt;${url}&lt;/result&gt;

1	<result name="success" type="redirect">${url}</result>

type=”redirect” is used to redirect this action to the specified URL.here URL is a variable in the action class with getter and setter methods.We are getting the URL value from the JSP page to get the URL value in … Read more

Showing JQuery Arraylist values using Struts2 and JSON

January 23, 2023January 12, 2023 by manish

I am having comment class, I want to show its property values to jsp page using json Comments.java

package example;

import java.sql.Timestamp;

public class Comments {

    private int id;
    private String name;
    private String pic;
    private String comment;
    private Timestamp commentDate;

    public String getComment() {
        return comment;
    }

    public void setComment(String comment) {
        this.comment = comment;
    }

    public Timestamp getCommentDate() {
        return commentDate;
    }

    public void setCommentDate(Timestamp commentDate) {
        this.commentDate = commentDate;
    }

    public int getId() {
        return id;
    }

    public void setId(int id) {
        this.id = id;
    }

    public String getName() {
        return name;
    }

    public void setName(String name) {
        this.name = name;
    }

    public String getPic() {
        return pic;
    }

    public void setPic(String pic) {
        this.pic = pic;
    }
}

package example;

import java.sql.Timestamp;

public class Comments {

private int id;

private String name;

private String pic;

private String comment;

private Timestamp commentDate;

public String getComment() {

return comment;

}

public void setComment(String comment) {

this.comment = comment;

}

public Timestamp getCommentDate() {

return commentDate;

}

public void setCommentDate(Timestamp commentDate) {

this.commentDate = commentDate;

}

public int getId() {

return id;

}

public void setId(int id) {

this.id = id;

}

public String getName() {

return name;

}

public void setName(String name) {

this.name = name;

}

public String getPic() {

return pic;

}

public void setPic(String pic) {

this.pic = pic;

}

ListJson assigning values for comments.java. Here we fetch value of commentList and totalcomments value in our jsp page.

package example;

import com.opensymphony.xwork2.ActionSupport;
import java.util.ArrayList;

public class ListJson extends ActionSupport {

    private ArrayList commentList = new ArrayList<comments>();
    private long totalComments;

    public String execute() {
        comments c = new comments();
        c.setId(1);
        c.setName("Manish");
        c.setComment("Hi how are you");
        c.setPic("a.jpg");
        c.setCommentDate(null);

        comments d = new comments();
        d.setId(2);
        d.setName("Nita");
        d.setComment("I am fine");
        d.setPic("b.jpg");
        d.setCommentDate(null);
        commentList.add(c);
        commentList.add(d);
        setTotalComments(commentList.size());
        System.out.println("In action");

        return SUCCESS;
    }

    public long getTotalComments() {
        return totalComments;
    }

    public void setTotalComments(long totalComments) {
        this.totalComments = totalComments;
    }

    public ArrayList getCommentList() {
        return commentList;
    }

    public void setCommentList(ArrayList commentList) {
        this.commentList = commentList;
    }
}
</comments>

package example;

import com.opensymphony.xwork2.ActionSupport;

import java.util.ArrayList;

public class ListJson extends ActionSupport {

private ArrayList commentList = new ArrayList<comments>();

private long totalComments;

public String execute() {

comments c = new comments();

c.setId(1);

c.setName("Manish");

c.setComment("Hi how are you");

c.setPic("a.jpg");

c.setCommentDate(null);

comments d = new comments();

d.setId(2);

d.setName("Nita");

d.setComment("I am fine");

d.setPic("b.jpg");

d.setCommentDate(null);

commentList.add(c);

commentList.add(d);

setTotalComments(commentList.size());

System.out.println("In action");

return SUCCESS;

}

public long getTotalComments() {

return totalComments;

}

public void setTotalComments(long totalComments) {

this.totalComments = totalComments;

}

public ArrayList getCommentList() {

return commentList;

}

public void setCommentList(ArrayList commentList) {

this.commentList = commentList;

}

</comments>

Struts.xml

 <package name="example1" extends="struts-default, json-default">
        <action name="fetchComments" class="example.ListJson">
            <result type="json"></result>
        </action>
    </package>

</action>

</package>

In Jsp page

&lt;%@page contentType="text/html" pageEncoding="UTF-8"%&gt;


    
        <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
        <title>JSP Page</title>
        <script src="http://code.jquery.com/jquery-1.10.1.min.js"></script>
    
    
        <input type="button" id="button1" value="Submit">


<div class="total-comments"></div>


<div class="allcomments">

</div>

        <script>
            $("#button1").click(function() {
                $.getJSON('fetchComments', function(data) {
                    $(".total-comments").html("<h2>Total comments are "+data.totalComments+"</div>");
                   
                    var msg;
                 
                    $.each(data.commentList, function(j) {
                        msg='<div class="comment">';
                        msg+= '<div class="id">'+data.commentList[j].id+'</div>'
                        msg+= '<div class="name">'+data.commentList[j].name+'</div>';         
                        msg+= '<div class="image">'+data.commentList[j].pic+'</div>'
                        msg+= '<div class="image">'+data.commentList[j].comment+'</div>'
                        msg+= '<div class="commentDate">'+data.commentList[j].commentDate+'</div>'
                        msg+='</div>';
                        $(".allcomments").append(msg);
                    });
                    return false;                    
                });
            });
           </script>

<%@page contentType="text/html" pageEncoding="UTF-8"%>

</div>

$("#button1").click(function() {

$.getJSON('fetchComments', function(data) {

$(".total-comments").html("<h2>Total comments are "+data.totalComments+"</div>");

var msg;

$.each(data.commentList, function(j) {

msg='<div class="comment">';

msg+= '<div class="id">'+data.commentList[j].id+'</div>'

msg+= '<div class="name">'+data.commentList[j].name+'</div>';

msg+= '<div class="image">'+data.commentList[j].pic+'</div>'

msg+= '<div class="image">'+data.commentList[j].comment+'</div>'

msg+= '<div class="commentDate">'+data.commentList[j].commentDate+'</div>'

msg+='</div>';

$(".allcomments").append(msg);

});

return false;

});

</script>

html/jsp page response in ajax get method

January 12, 2023January 11, 2023 by manish

We want to get an entire page as ajax response by using jquery get method. Steps: 1) First create pages(FirstJsp.jsp and SecondJsp.jsp) 2) call jquery get method to get ajax response in one page(here FirstJsp.jsp to get SecondJsp.jsp) 3)Configure struts.xml file Lets start with page creating FirstJsp.jsp

<%@page contentType="text/html" pageEncoding="UTF-8"%>
<%@taglib  uri="/struts-tags" prefix="s" %>
<!DOCTYPE html>
<html>
    <head>
        <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
        <title>First JSP Page</title>
        <script type='text/javascript' src="js/jquery.min.js"></script>
    </head>
    <body>
        <h1>Get Html Page As Responser</h1>
        <s:submit id="fetch" value="fetch" />
        <div id="content"></div>

        <script>
            $(document).ready(function() {
                $(document).on("click", "#fetch", function(f) {
                    f.preventDefault();
                    $.get("getContent", function(data) {
                        $("#content").html(data);
                    });
                });
            });
        </script>
    </body>
</html>

<%@page contentType="text/html" pageEncoding="UTF-8"%>

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

<!DOCTYPE html>

<html>

<head>

<title>First JSP Page</title>

</head>

<body>

<h1>Get Html Page As Responser</h1>

<s:submit id="fetch" value="fetch" />

$(document).ready(function() {

$(document).on("click", "#fetch", function(f) {

f.preventDefault();

$.get("getContent", function(data) {

$("#content").html(data);

});

</script>

</body>

</html>

SecondJsp.jsp

This is Second Jsp Page</h1>
<p>
<ol>
    <li>Create jsp/html files</li>
    <li>Call ajax method to get response</li>
    <li>Set configuration file and respond with html/jsp file which you want to get on success</li>
</ol>
</p>

This is Second Jsp Page</h1>

<p>

<ol>

<li>Create jsp/html files</li>

<li>Call ajax method to get response</li>

<li>Set configuration file and respond with html/jsp file which you want to get on success</li>

</ol>

</p>

Struts.xml

 <package name="default" extends="struts-default">
        <action name="getContent">
            <result name="success">SecondJsp.jsp</result>
        </action>
    </package>

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

</action>

</package>

Output