jsf+ejb3.0(对学生实现了增删改查)

/** * ClassName: EmployeeService.java * Author: qiujy * CreateTime: Feb 20, 2008 * * Copyright 2007-2008 ++YONG All rights reserved. * EMail: qjyong@gmail.com */ package com.service; import java.util.ArrayList; import java.util.List; import java.util.Properties; import javax.naming.Context; import javax.naming.InitialContext; import javax.naming.NamingException; import com.dao.StudentDao; import com.entity.Student; import com.vo.StudentVO; public class StudentService { private StudentDao studentDao; public StudentService() { try { Properties props = new Properties(); // 设置Jboss服务器的JNDI驱动的类名 props.setProperty(Context.INITIAL_CONTEXT_FACTORY, "org.jnp.interfaces.NamingContextFactory"); // 设置Jboss服务器提供命名服务的URL props.setProperty(Context.PROVIDER_URL, "localhost:1099"); InitialContext ctx = new InitialContext(props); // looking up SessionBean studentDao = (StudentDao) ctx.lookup("StudentDaoImpl/remote"); } catch (NamingException e) { e.printStackTrace(); } catch (Exception ex) { ex.printStackTrace(); } } public void add(StudentVO student){ studentDao.persist(student.getPO()); } public void delete(StudentVO student){ studentDao.delete(student.getPO()); } public void update(StudentVO student){ studentDao.update(student.getPO()); } public List<StudentVO> findAllStudent(){ List<StudentVO> result = new ArrayList<StudentVO>(); List<Student> list = studentDao.findAllStudent(); int size = list == null ? 0 : list.size(); for (int i = 0; i < size; i++) { result.add(new StudentVO(list.get(i))); } return result; } public StudentVO findStudent(Integer id){ Student stu = studentDao.findStudent(id); return (stu == null ? null : new StudentVO(stu)); } }