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              <h1>Struts</h1>
            </div>
          </div>
        </div>
        <div class="row">
            
            <div class="col-md-12">
                <p><em>Help us document this example! Click the blue pencil icon in the upper right to edit this page.</em></p>
<h2>AddUser</h2>
<pre><code>package org.superbiz.struts;

import javax.naming.Context;
import javax.naming.InitialContext;
import java.util.Properties;


public class AddUser {

    private int id;
    private String firstName;
    private String lastName;
    private String errorMessage;


    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 getErrorMessage() {
        return errorMessage;
    }

    public void setErrorMessage(String errorMessage) {
        this.errorMessage = errorMessage;
    }

    public int getId() {
        return id;
    }

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

    public String execute() {

        try {
            UserService service = null;
            Properties props = new Properties();
            props.put(Context.INITIAL_CONTEXT_FACTORY,
                    &quot;org.apache.openejb.core.LocalInitialContextFactory&quot;);
            Context ctx = new InitialContext(props);
            service = (UserService) ctx.lookup(&quot;UserServiceImplLocal&quot;);
            service.add(new User(id, firstName, lastName));
        } catch (Exception e) {
            this.errorMessage = e.getMessage();
            return &quot;failure&quot;;
        }

        return &quot;success&quot;;
    }
}
</code></pre>
<h2>AddUserForm</h2>
<pre><code>package org.superbiz.struts;

import com.opensymphony.xwork2.ActionSupport;


public class AddUserForm extends ActionSupport {
}
</code></pre>
<h2>FindUser</h2>
<pre><code>package org.superbiz.struts;

import javax.naming.Context;
import javax.naming.InitialContext;
import java.util.Properties;

public class FindUser {

    private int id;
    private String errorMessage;
    private User user;

    public User getUser() {
        return user;
    }

    public void setUser(User user) {
        this.user = user;
    }

    public String getErrorMessage() {
        return errorMessage;
    }

    public void setErrorMessage(String errorMessage) {
        this.errorMessage = errorMessage;
    }

    public int getId() {
        return id;
    }

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

    public String execute() {

        try {
            UserService service = null;
            Properties props = new Properties();
            props.put(Context.INITIAL_CONTEXT_FACTORY,
                    &quot;org.apache.openejb.core.LocalInitialContextFactory&quot;);
            Context ctx = new InitialContext(props);
            service = (UserService) ctx.lookup(&quot;UserServiceImplLocal&quot;);
            this.user = service.find(id);
        } catch (Exception e) {
            this.errorMessage = e.getMessage();
            return &quot;failure&quot;;
        }

        return &quot;success&quot;;
    }
}
</code></pre>
<h2>FindUserForm</h2>
<pre><code>package org.superbiz.struts;

import com.opensymphony.xwork2.ActionSupport;


public class FindUserForm extends ActionSupport {
}
</code></pre>
<h2>ListAllUsers</h2>
<pre><code>package org.superbiz.struts;

import javax.naming.Context;
import javax.naming.InitialContext;
import java.util.List;
import java.util.Properties;

public class ListAllUsers {

    private int id;
    private String errorMessage;
    private List&lt;User&gt; users;

    public List&lt;User&gt; getUsers() {
        return users;
    }

    public void setUsers(List&lt;User&gt; users) {
        this.users = users;
    }

    public String getErrorMessage() {
        return errorMessage;
    }

    public void setErrorMessage(String errorMessage) {
        this.errorMessage = errorMessage;
    }

    public int getId() {
        return id;
    }

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

    public String execute() {

        try {
            UserService service = null;
            Properties props = new Properties();
            props.put(Context.INITIAL_CONTEXT_FACTORY,
                    &quot;org.apache.openejb.core.LocalInitialContextFactory&quot;);
            Context ctx = new InitialContext(props);
            service = (UserService) ctx.lookup(&quot;UserServiceImplLocal&quot;);
            this.users = service.findAll();
        } catch (Exception e) {
            this.errorMessage = e.getMessage();
            return &quot;failure&quot;;
        }

        return &quot;success&quot;;
    }
}
</code></pre>
<h2>User</h2>
<pre><code>package org.superbiz.struts;

import javax.persistence.Entity;
import javax.persistence.Id;
import javax.persistence.Table;
import java.io.Serializable;

@Entity
@Table(name = &quot;USER&quot;)
public class User implements Serializable {
    private long id;
    private String firstName;
    private String lastName;

    public User(long id, String firstName, String lastName) {
        super();
        this.id = id;
        this.firstName = firstName;
        this.lastName = lastName;
    }

    public User() {
    }

    @Id
    public long getId() {
        return id;
    }

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

    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;
    }
}
</code></pre>
<h2>UserService</h2>
<pre><code>package org.superbiz.struts;

import java.util.List;

public interface UserService {
    public void add(User user);

    public User find(int id);

    public List&lt;User&gt; findAll();
}
</code></pre>
<h2>UserServiceImpl</h2>
<pre><code>package org.superbiz.struts;

import javax.ejb.Stateless;
import javax.persistence.EntityManager;
import javax.persistence.PersistenceContext;
import java.util.List;

@Stateless
public class UserServiceImpl implements UserService {

    @PersistenceContext(unitName = &quot;user&quot;)
    private EntityManager manager;

    public void add(User user) {
        manager.persist(user);
    }

    public User find(int id) {
        return manager.find(User.class, id);
    }

    public List&lt;User&gt; findAll() {
        return manager.createQuery(&quot;select u from User u&quot;).getResultList();
    }
}
</code></pre>
<h2>persistence.xml</h2>
<pre><code>&lt;/persistence-unit&gt;

  --&gt;
&lt;/persistence&gt;
</code></pre>
<h2>struts.xml</h2>
<pre><code>&lt;struts&gt;
  &lt;constant name=&quot;struts.devMode&quot; value=&quot;true&quot;&gt;&lt;/constant&gt;
  &lt;package name=&quot;default&quot; namespace=&quot;/&quot; extends=&quot;struts-default&quot;&gt;
    &lt;action name=&quot;addUserForm&quot; class=&quot;org.superbiz.struts.AddUserForm&quot;&gt;
      &lt;result&gt;/addUserForm.jsp&lt;/result&gt;
    &lt;/action&gt;
    &lt;action name=&quot;addUser&quot; class=&quot;org.superbiz.struts.AddUser&quot;&gt;
      &lt;result name=&quot;success&quot;&gt;/addedUser.jsp&lt;/result&gt;
      &lt;result name=&#39;failure&#39;&gt;/addUserForm.jsp&lt;/result&gt;
    &lt;/action&gt;
    &lt;action name=&quot;findUserForm&quot; class=&quot;org.superbiz.struts.FindUserForm&quot;&gt;
      &lt;result&gt;/findUserForm.jsp&lt;/result&gt;
    &lt;/action&gt;
    &lt;action name=&quot;findUser&quot; class=&quot;org.superbiz.struts.FindUser&quot;&gt;
      &lt;result name=&#39;success&#39;&gt;/displayUser.jsp&lt;/result&gt;
      &lt;result name=&#39;failure&#39;&gt;/findUserForm.jsp&lt;/result&gt;
    &lt;/action&gt;
    &lt;action name=&quot;listAllUsers&quot; class=&quot;org.superbiz.struts.ListAllUsers&quot;&gt;
      &lt;result&gt;/displayUsers.jsp&lt;/result&gt;
    &lt;/action&gt;

  &lt;/package&gt;
&lt;/struts&gt;
</code></pre>
<h2>decorators.xml</h2>
<pre><code>&lt;decorators defaultdir=&quot;/decorators&quot;&gt;
  &lt;decorator name=&quot;main&quot; page=&quot;layout.jsp&quot;&gt;
    &lt;pattern&gt;/*&lt;/pattern&gt;
  &lt;/decorator&gt;
&lt;/decorators&gt;
</code></pre>
<h2>web.xml</h2>
<pre><code>&lt;web-app xmlns=&quot;http://java.sun.com/xml/ns/javaee&quot; xmlns:xsi=&quot;http://www.w3.org/2001/XMLSchema-instance&quot;
         xsi:schemaLocation=&quot;http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd&quot;
         version=&quot;2.5&quot;&gt;
  &lt;display-name&gt;Learn EJB3 and Struts2&lt;/display-name&gt;
  &lt;filter&gt;
    &lt;filter-name&gt;struts2&lt;/filter-name&gt;
    &lt;filter-class&gt;org.apache.struts2.dispatcher.FilterDispatcher&lt;/filter-class&gt;
    &lt;init-param&gt;
      &lt;param-name&gt;actionPackages&lt;/param-name&gt;
      &lt;param-value&gt;com.lq&lt;/param-value&gt;
    &lt;/init-param&gt;
  &lt;/filter&gt;
  &lt;filter&gt;
    &lt;filter-name&gt;struts-cleanup&lt;/filter-name&gt;
    &lt;filter-class&gt;org.apache.struts2.dispatcher.ActionContextCleanUp&lt;/filter-class&gt;
  &lt;/filter&gt;
  &lt;filter&gt;
    &lt;filter-name&gt;sitemesh&lt;/filter-name&gt;
    &lt;filter-class&gt;com.opensymphony.module.sitemesh.filter.PageFilter&lt;/filter-class&gt;
  &lt;/filter&gt;
  &lt;filter-mapping&gt;
    &lt;filter-name&gt;struts-cleanup&lt;/filter-name&gt;
    &lt;url-pattern&gt;/*&lt;/url-pattern&gt;
  &lt;/filter-mapping&gt;
  &lt;filter-mapping&gt;
    &lt;filter-name&gt;sitemesh&lt;/filter-name&gt;
    &lt;url-pattern&gt;/*&lt;/url-pattern&gt;
  &lt;/filter-mapping&gt;
  &lt;filter-mapping&gt;
    &lt;filter-name&gt;struts2&lt;/filter-name&gt;
    &lt;url-pattern&gt;/*&lt;/url-pattern&gt;
  &lt;/filter-mapping&gt;
  &lt;welcome-file-list&gt;
    &lt;welcome-file&gt;index.jsp&lt;/welcome-file&gt;
  &lt;/welcome-file-list&gt;
  &lt;jsp-config&gt;
    &lt;jsp-property-group&gt;
      &lt;description&gt;JSP configuration of all the JSP&#39;s&lt;/description&gt;
      &lt;url-pattern&gt;*.jsp&lt;/url-pattern&gt;
      &lt;include-prelude&gt;/prelude.jspf&lt;/include-prelude&gt;
    &lt;/jsp-property-group&gt;
  &lt;/jsp-config&gt;
&lt;/web-app&gt;
</code></pre>
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