在JBoss下发布EJB3.0实现增删改查

persistence.xml文件<?xml version="1.0" encoding="UTF-8"?><persistence version="1.0"xmlns:persistence="http://java.sun.com/xml/ns/persistence"xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"xsi:schemaLocation="http://java.sun.com/xml/ns/persistence persistence_1_0.xsd "><persistence-unit name="genlot" transaction-type="JTA"><jta-data-source>java:GenlotDS</jta-data-source><properties>   <property name="hibernate.show_sql" value="true"></property>   <property name="hibernate.format_sql" value="true"></property></properties></persistence-unit></persistence>jndi.properties文件java.naming.factory.initial=org.jnp.interfaces.NamingContextFactoryjava.naming.provider.url=jnp://localhost:1099java.naming.factory.url.pkgs=org.jnp.interfaces实体Beanpackage com.genlot.loms.ejb3.entity;import java.util.Date;import javax.persistence.Column;import javax.persistence.Entity;import javax.persistence.GeneratedValue;import javax.persistence.GenerationType;import javax.persistence.Id;import javax.persistence.Table;@Entity@Table(name = "ss_user")public class User implements java.io.Serializable{private static final long serialVersionUID = -8692000975878306489L;private Integer id;private String name;private String password;private String sex;private Date birthday;private String address;@Id@GeneratedValue(strategy = GenerationType.IDENTITY)@Column(name = "id", nullable = false, length = 20)public Integer getId() {return id;}public void setId(Integer id) {this.id = id;}@Column(name = "name", nullable = false, length = 19)public String getName() {return name;}public void setName(String name) {this.name = name;}@Column(name = "password", nullable = false, length = 19)public String getPassword() {return password;}public void setPassword(String password) {this.password = password;}@Column(name = "sex", nullable = false, length = 19)public String getSex() {return sex;}public void setSex(String sex) {this.sex = sex;}@Column(name="birthday" )public Date getBirthday() {return birthday;}public void setBirthday(Date birthday) {this.birthday = birthday;}@Column(name = "address", nullable = false, length = 19)public String getAddress() {return address;}public void setAddress(String address) {this.address = address;}}package com.genlot.loms.ejb3.bussiness;import java.util.List;import com.genlot.loms.ejb3.entity.User;public interface UserBussiness {public void save (User user);public void update (User user);public void delete (Integer userId);public User getUser(Integer userId);public List<User> findUserAll();}package com.genlot.loms.ejb3.bussiness.impl;import java.util.List;import javax.ejb.Remote;import javax.ejb.Stateless;import javax.persistence.EntityManager;import javax.persistence.PersistenceContext;import com.genlot.loms.ejb3.bussiness.UserBussiness;import com.genlot.loms.ejb3.entity.User;@Stateless@Remote(UserBussiness.class)public class UserBussinessImpl implements UserBussiness {@PersistenceContext(unitName="genlot") EntityManager em;public void save(User user) {em.persist(user);}public void update(User user) {em.merge(user);}public void delete(Integer userId) {em.remove(em.getReference(User.class, userId));}public User getUser(Integer userId) {return em.find(User.class, userId);}@SuppressWarnings("unchecked")public List<User> findUserAll() {return em.createQuery(" from User where 1 = 1").getResultList();}}