NetBean 8 创建EJB

 1 /*  2  * To change this license header, choose License Headers in Project Properties.  3  * To change this template file, choose Tools | Templates  4  * and open the template in the editor.  5  */  6 package com.bruceyo.example.entity;  7   8 import java.io.Serializable;  9 import javax.persistence.Entity; 10 import javax.persistence.GeneratedValue; 11 import javax.persistence.GenerationType; 12 import javax.persistence.Id; 13  14 /** 15  * 16  * @author bruce_000 17  */ 18 @Entity 19 public class People implements Serializable { 20     private static final long serialVersionUID = 1L; 21     @Id 22     @GeneratedValue(strategy = GenerationType.AUTO) 23     private Long id; 24     private String firstName; 25  26     public String getFirstName() { 27         return firstName; 28     } 29  30     public void setFirstName(String firstName) { 31         this.firstName = firstName; 32     } 33  34     public String getLastName() { 35         return lastName; 36     } 37  38     public void setLastName(String lastName) { 39         this.lastName = lastName; 40     } 41     private String lastName; 42      43     public Long getId() { 44         return id; 45     } 46  47     public void setId(Long id) { 48         this.id = id; 49     } 50  51     @Override 52     public int hashCode() { 53         int hash = 0; 54         hash += (id != null ? id.hashCode() : 0); 55         return hash; 56     } 57  58     @Override 59     public boolean equals(Object object) { 60         // TODO: Warning - this method won't work in the case the id fields are not set 61         if (!(object instanceof People)) { 62             return false; 63         } 64         People other = (People) object; 65         if ((this.id == null && other.id != null) || (this.id != null && !this.id.equals(other.id))) { 66             return false; 67         } 68         return true; 69     } 70  71     @Override 72     public String toString() { 73         return "com.bruceyo.example.entity.Customer[ id=" + id + " ]"; 74     } 75      76 }

 1 /*  2  * To change this license header, choose License Headers in Project Properties.  3  * To change this template file, choose Tools | Templates  4  * and open the template in the editor.  5  */  6 package com.bruceyo.sample.service;  7   8 import com.bruceyo.example.entity.People;  9 import javax.ejb.Stateless; 10 import javax.persistence.EntityManager; 11 import javax.persistence.PersistenceContext; 12  13 /** 14  * 15  * @author bruce_000 16  */ 17 @Stateless 18 public class AccountService implements AccountServiceRemote { 19  20     @PersistenceContext 21     private EntityManager em; 22      23     @Override 24     public People createAccount(String firstName, String lastName) { 25         People customer = new People(); 26         customer.setFirstName(firstName); 27         customer.setLastName(lastName); 28          29         em.persist(customer); 30         return customer; 31     } 32  33     // Add business logic below. (Right-click in editor and choose 34     // "Insert Code > Add Business Method") 35 }

 1 /*  2  * To change this license header, choose License Headers in Project Properties.  3  * To change this template file, choose Tools | Templates  4  * and open the template in the editor.  5  */  6 package com.bruceyo.example.tester;  7   8 import com.bruceyo.example.entity.People;  9 import com.bruceyo.sample.service.AccountServiceRemote; 10 import java.io.IOException; 11 import java.io.PrintWriter; 12 import javax.ejb.EJB; 13 import javax.servlet.ServletException; 14 import javax.servlet.annotation.WebServlet; 15 import javax.servlet.http.HttpServlet; 16 import javax.servlet.http.HttpServletRequest; 17 import javax.servlet.http.HttpServletResponse; 18  19 /** 20  * 21  * @author jGauravGupta 22  */ 23 @WebServlet(name = "AccountController", urlPatterns = {"/AccountController"}) 24 public class AccountController extends HttpServlet { 25     @EJB 26     private AccountServiceRemote accountService; 27  28      29     /** 30      * Handles the HTTP <code>POST</code> method. 31      * 32      * @param request servlet request 33      * @param response servlet response 34      * @throws ServletException if a servlet-specific error occurs 35      * @throws IOException if an I/O error occurs 36      */ 37     @Override 38     protected void doPost(HttpServletRequest request, HttpServletResponse response) 39             throws ServletException, IOException { 40        response.setContentType("text/html;charset=UTF-8"); 41         try (PrintWriter out = response.getWriter()) { 42             String firstName = request.getParameter("firstName"); 43             String lastName = request.getParameter("lastName"); 44              45             People customer = accountService.createAccount(firstName, lastName); 46             out.println("Customer["+customer.getFirstName()+"] : " + customer.getId()); 47         } 48     } 49  50 }

 1 <!DOCTYPE html>  2 <!--  3 To change this license header, choose License Headers in Project Properties.  4 To change this template file, choose Tools | Templates  5 and open the template in the editor.  6 -->  7 <html>  8     <head>  9         <title>TODO supply a title</title> 10         <meta charset="UTF-8"> 11         <meta name="viewport" content="width=device-width, initial-scale=1.0"> 12     </head> 13     <body> 14         <form action="AccountController" method="post" > 15         <input type="text" name="firstName" placeholder="First Name" /> 16         <input type="text" name="lastName" placeholder="Last Name"/> 17         <input type="submit" value="Create"/> 18         </form> 19     </body> 20 </html>