演示地址：
说明： 分两部分，由于第一部分的演示有部分大家看了会不明白的，在第二部分进行了补充。
import java.util.Properties;import javax.naming.InitialContext;import javax.naming.NamingException;import com.SelectCourse;import com.SelectCourseFacadeRemote;
public class Test ...{
/**//** * @param args
*/ public static void main(String[] args) ...{ Properties props = new Properties(); props.setProperty("java.naming.factory.initial", "org.jnp.interfaces.NamingContextFactory"); props.setProperty("java.naming.provider.url", "localhost:1099"); props.setProperty("java.naming.factory.url.pkgs", "org.jboss.naming"); InitialContext ctx; try ...{ ctx = new InitialContext(props); SelectCourseFacadeRemote remote = (SelectCourseFacadeRemote) ctx.lookup("SelectCourseFacade/remote"); SelectCourse sc = new SelectCourse(); sc.setId((long)500); sc.setCourseId(52); sc.setStuId(533); remote.save(sc); ctx.close(); } catch (NamingException e) ...{ System.out.println(e.getMessage()); } finally ...{ } }
}
persistence.xml
<?xml version="1.0" encoding="UTF-8"?><persistence xmlns="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 http://java.sun.com/xml/ns/persistence/persistence_1_0.xsd" version="1.0"> <persistence-unit name="myEjbEntityBean" transaction-type="JTA"> <jta-data-source>java:/DefaultMySqlDS</jta-data-source> </persistence-unit> </persistence>
package com;import javax.persistence.Column;import javax.persistence.Entity;import javax.persistence.Id;import javax.persistence.Table;/**//** * SelectCourse entity. * * @author MyEclipse Persistence Tools */@Entity@Table(name = "select_course", catalog = "test", uniqueConstraints = ...{})public class SelectCourse implements java.io.Serializable ...{ // Fields private Long id; private Integer stuId; private Integer courseId; // Constructors /**//** default constructor */ public SelectCourse() ...{ } /**//** minimal constructor */ public SelectCourse(Long id) ...{ this.id = id; } /**//** full constructor */ public SelectCourse(Long id, Integer stuId, Integer courseId) ...{ this.id = id; this.stuId = stuId; this.courseId = courseId; } // Property accessors @Id @Column(name = "ID", unique = true, nullable = false, insertable = true, updatable = true) public Long getId() ...{ return this.id; } public void setId(Long id) ...{ this.id = id; } @Column(name = "stuId", unique = false, nullable = true, insertable = true, updatable = true) public Integer getStuId() ...{ return this.stuId; } public void setStuId(Integer stuId) ...{ this.stuId = stuId; } @Column(name = "courseId", unique = false, nullable = true, insertable = true, updatable = true) public Integer getCourseId() ...{ return this.courseId; } public void setCourseId(Integer courseId) ...{ this.courseId = courseId; }}
package com;import java.util.List;import javax.ejb.Remote;/**//** * Remote interface for SelectCourseFacade. * * @author MyEclipse Persistence Tools */@Remotepublic interface SelectCourseFacadeRemote ...{ /**//** * Perform an initial save of a previously unsaved SelectCourse entity. All * subsequent persist actions of this entity should use the #update() * method. * * @param entity * SelectCourse entity to persist * @throws RuntimeException * when the operation fails */ public void save(SelectCourse entity); /**//** * Delete a persistent SelectCourse entity. * * @param entity * SelectCourse entity to delete * @throws RuntimeException * when the operation fails */ public void delete(SelectCourse entity); /**//** * Persist a previously saved SelectCourse entity and return it or a copy of * it to the sender. A copy of the SelectCourse entity parameter is returned * when the JPA persistence mechanism has not previously been tracking the * updated entity. * * @param entity * SelectCourse entity to update * @returns SelectCourse the persisted SelectCourse entity instance, may not * be the same * @throws RuntimeException * if the operation fails */ public SelectCourse update(SelectCourse entity); public