Form and Java Model class in Struts 2

When the user submits a form you can bind the form to Java model class in Struct 2. We will see how to do it
First we will create the model class User.Java

package example;
public class User {
    private String firstName;
    private String lastName;

    public User(){
        
    }
    @Override
    public String toString() {
        return "hello";
    }
    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;
    }
    
            
}

package example;

public class User {

private String firstName;

private String lastName;

public User(){

}

@Override

public String toString() {

return "hello";

}

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;

}

Then you can create the jsp file to have the form. I am going to create a jsp file names person.jsp and I will add following code to it

<%@page contentType="text/html" pageEncoding="UTF-8"%>
<!DOCTYPE html>
<%@ taglib prefix="s" uri="/struts-tags" %>
<html>
    <head>
        <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
        <title>JSP Page</title>
    </head>
    <body>
        <h1>Login Form</h1>
        <s:form action="example/test.action">
            <s:textfield name="userBean.firstName" label="First name" />
            <s:textfield name="userBean.lastName" label="Last name" />
            <s:submit value="Submit" />
        </s:form>
        
    </body>
</html>

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

<!DOCTYPE html>

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

<html>

<head>

</head>

<body>

<h1>Login Form</h1>

<s:form action="example/test.action">

<s:textfield name="userBean.firstName" label="First name" />

<s:textfield name="userBean.lastName" label="Last name" />

<s:submit value="Submit" />

</s:form>

</body>

</html>

Then you can create the TestAction.Java classs which will have refernce to your User bean class and ececute method

package example;

import static com.opensymphony.xwork2.Action.SUCCESS;
import com.opensymphony.xwork2.ActionSupport;

public class TestAction extends ActionSupport  {
    
    private User userBean;

    public User getUserBean() {
        return userBean;
    }

    public void setUserBean(User userBean) {
        this.userBean = userBean;
    }
    
    @Override
    public String execute() throws Exception{
        System.out.println("Test");
       return SUCCESS;
    }
}

package example;

import static com.opensymphony.xwork2.Action.SUCCESS;

import com.opensymphony.xwork2.ActionSupport;

public class TestAction extends ActionSupport {

private User userBean;

public User getUserBean() {

return userBean;

}

public void setUserBean(User userBean) {

this.userBean = userBean;

}

@Override

public String execute() throws Exception{

System.out.println("Test");

return SUCCESS;

}

Finally you can update your struts.xml file

<struts>
    <package name="example" namespace="/example" extends="struts-default">
        <action name="HelloWorld" class="example.HelloWorld">
            <result>/example/HelloWorld.jsp</result>
        </action>
      <action name="test" class="example.TestAction">
            <result>/thankyou.jsp</result>
      </action>
    </package>
</struts>

<result>/example/HelloWorld.jsp</result>

</action>

<result>/thankyou.jsp</result>

</action>

</package>

</struts>

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Form and Java Model class in Struts 2