index-group=Unrevised type=page status=published title=Struts

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## AddUser

    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,
                        "org.apache.openejb.core.LocalInitialContextFactory");
                Context ctx = new InitialContext(props);
                service = (UserService) ctx.lookup("UserServiceImplLocal");
                service.add(new User(id, firstName, lastName));
            } catch (Exception e) {
                this.errorMessage = e.getMessage();
                return "failure";
            }
    
            return "success";
        }
    }

## AddUserForm

    package org.superbiz.struts;
    
    import com.opensymphony.xwork2.ActionSupport;
    
    
    public class AddUserForm extends ActionSupport {
    }

## FindUser

    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,
                        "org.apache.openejb.core.LocalInitialContextFactory");
                Context ctx = new InitialContext(props);
                service = (UserService) ctx.lookup("UserServiceImplLocal");
                this.user = service.find(id);
            } catch (Exception e) {
                this.errorMessage = e.getMessage();
                return "failure";
            }
    
            return "success";
        }
    }

## FindUserForm

    package org.superbiz.struts;
    
    import com.opensymphony.xwork2.ActionSupport;
    
    
    public class FindUserForm extends ActionSupport {
    }

## ListAllUsers

    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<User> users;
    
        public List<User> getUsers() {
            return users;
        }
    
        public void setUsers(List<User> 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,
                        "org.apache.openejb.core.LocalInitialContextFactory");
                Context ctx = new InitialContext(props);
                service = (UserService) ctx.lookup("UserServiceImplLocal");
                this.users = service.findAll();
            } catch (Exception e) {
                this.errorMessage = e.getMessage();
                return "failure";
            }
    
            return "success";
        }
    }

## User

    package org.superbiz.struts;
    
    import javax.persistence.Entity;
    import javax.persistence.Id;
    import javax.persistence.Table;
    import java.io.Serializable;
    
    @Entity
    @Table(name = "USER")
    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;
        }
    }

## UserService

    package org.superbiz.struts;
    
    import java.util.List;
    
    public interface UserService {
        public void add(User user);
    
        public User find(int id);
    
        public List<User> findAll();
    }

## UserServiceImpl

    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 = "user")
        private EntityManager manager;
    
        public void add(User user) {
            manager.persist(user);
        }
    
        public User find(int id) {
            return manager.find(User.class, id);
        }
    
        public List<User> findAll() {
            return manager.createQuery("select u from User u").getResultList();
        }
    }

## persistence.xml

    </persistence-unit>
    
      -->
    </persistence>

## struts.xml

    <struts>
      <constant name="struts.devMode" value="true"></constant>
      <package name="default" namespace="/" extends="struts-default">
        <action name="addUserForm" class="org.superbiz.struts.AddUserForm">
          <result>/addUserForm.jsp</result>
        </action>
        <action name="addUser" class="org.superbiz.struts.AddUser">
          <result name="success">/addedUser.jsp</result>
          <result name='failure'>/addUserForm.jsp</result>
        </action>
        <action name="findUserForm" class="org.superbiz.struts.FindUserForm">
          <result>/findUserForm.jsp</result>
        </action>
        <action name="findUser" class="org.superbiz.struts.FindUser">
          <result name='success'>/displayUser.jsp</result>
          <result name='failure'>/findUserForm.jsp</result>
        </action>
        <action name="listAllUsers" class="org.superbiz.struts.ListAllUsers">
          <result>/displayUsers.jsp</result>
        </action>
    
      </package>
    </struts>

## decorators.xml

    <decorators defaultdir="/decorators">
      <decorator name="main" page="layout.jsp">
        <pattern>/*</pattern>
      </decorator>
    </decorators>

## web.xml

    <web-app 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_2_5.xsd"
             version="2.5">
      <display-name>Learn EJB3 and Struts2</display-name>
      <filter>
        <filter-name>struts2</filter-name>
        <filter-class>org.apache.struts2.dispatcher.FilterDispatcher</filter-class>
        <init-param>
          <param-name>actionPackages</param-name>
          <param-value>com.lq</param-value>
        </init-param>
      </filter>
      <filter>
        <filter-name>struts-cleanup</filter-name>
        <filter-class>org.apache.struts2.dispatcher.ActionContextCleanUp</filter-class>
      </filter>
      <filter>
        <filter-name>sitemesh</filter-name>
        <filter-class>com.opensymphony.module.sitemesh.filter.PageFilter</filter-class>
      </filter>
      <filter-mapping>
        <filter-name>struts-cleanup</filter-name>
        <url-pattern>/*</url-pattern>
      </filter-mapping>
      <filter-mapping>
        <filter-name>sitemesh</filter-name>
        <url-pattern>/*</url-pattern>
      </filter-mapping>
      <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>
      <jsp-config>
        <jsp-property-group>
          <description>JSP configuration of all the JSP's</description>
          <url-pattern>*.jsp</url-pattern>
          <include-prelude>/prelude.jspf</include-prelude>
        </jsp-property-group>
      </jsp-config>
    </web-app>