Spring2.5+Struts2+Hibernate3整合之四

 转载请注明:来自http://blog.csdn.net/M_ChangGong/ 作者:张燕广

该篇主要编写DAO层代码。

在src下创建包com.zyg.ssh.dao，在该包下创建接口StudentDao，其代码如下：

package com.zyg.ssh.dao; import java.util.List; import com.zyg.ssh.bean.Student; public interface StudentDao { /** * 保存学生信息 * @param student */ public void addStudent(Student student); /** * 根据学号删除学生信息 * @param studentId */ public void delStudentById(int id); /** * 更新学生信息 * @param student */ public void updateStudentById(Student student); /** * 根据学号获取学生信息 * @param studentId */ public Student queryStudentById(int id); /** * 根据姓名获取学生信息 * @param studentId */ public List<Student> queryStudentByName(String name); /** * 获取全部学生信息 * @param studentId */ @SuppressWarnings("unchecked") public List<Student> queryAllStudents(); }

      在src下创建包com.zyg.ssh.dao.hibernate，在该包下创建实现StudentDao接口的类StudentDaoImpl，其代码如下：

   package com.zyg.ssh.dao.hibernate; import java.util.List; import org.hibernate.SessionFactory; import org.springframework.transaction.annotation.Transactional; import com.zyg.ssh.bean.Student; import com.zyg.ssh.dao.StudentDao; @Transactional public class StudentDaoImpl implements StudentDao { private SessionFactory sessionFactory; public SessionFactory getSessionFactory() { return sessionFactory; } public void setSessionFactory(SessionFactory sessionFactory) { this.sessionFactory = sessionFactory; } public void addStudent(Student student) { // TODO Auto-generated method stub sessionFactory.getCurrentSession().save(student); } public void delStudentById(int id) { sessionFactory.getCurrentSession() .delete(sessionFactory.getCurrentSession().load(Student.class, id)); } @SuppressWarnings("unchecked") public List<Student> queryAllStudents() { // TODO Auto-generated method stub List<Student> stuList = null; stuList=sessionFactory.getCurrentSession().createQuery("from Student").list(); return stuList; } public Student queryStudentById(int id) { Student student=null; student = (Student)sessionFactory.getCurrentSession().get(Student.class, id); return student; } public List<Student> queryStudentByName(String name) { // TODO Auto-generated method stub List<Student> stuList = null; stuList = sessionFactory.getCurrentSession() .createQuery("from Student s where s.stuName like '%"+name+"%'").list(); return stuList; } public void updateStudentById(Student student) { // TODO Auto-generated method stub sessionFactory.getCurrentSession().update(student); } }

    至此，该篇完成了DAO层代码的编写。下一篇开始编写Service层代码以及针对Service层功能的Junit测试代码。