Spring2.5+Struts1.3.8+JPA(Hibernate实现)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service层代码。

  在src下创建包com.zyg.ssj.service，并在该包下创建接口StudentService，该接口文件代码如下：

package com.zyg.ssj.service;import java.util.List;import com.zyg.ssj.bean.Student;import com.zyg.ssj.dao.StudentDao;public interface StudentService { /** * 保存学生信息 * @param student */ public abstract void save(Student student); /** * 根据学号删除学生信息 * @param studentId */ public abstract void delete(Integer studentId); /** * 根据学生删除学生信息 * @param studentId */ public abstract void delete(Student student); /** * 更新学生信息 * @param student */ public abstract void update(Student student); /** * 根据学号获取学生信息 * @param studentId */ public abstract Student getStudent(Integer studentId); /** * 获取全部学生信息 * @param studentId */ public abstract List<Student> getStudents();}

  在src下创建包com.zyg. ssj.service.impl，并在该包下创建接口

StudentService的实现类StudentServiceImpl，该类文件内容如下：

package com.zyg.ssj.service.impl;import java.util.List;import javax.annotation.Resource;import com.zyg.ssj.bean.Student;import com.zyg.ssj.dao.StudentDao;import com.zyg.ssj.service.StudentService;public class StudentServiceImpl implements StudentService { @Resource private StudentDao studentDao; /* (non-Javadoc) * @see com.zyg.ssj.service.impl.StudentService#save(com.zyg.ssj.bean.Student) */ public void save(Student student){ studentDao.save(student); } /* (non-Javadoc) * @see com.zyg.ssj.service.impl.StudentService#delete(java.lang.Integer) */ public void delete(Integer studentId){ studentDao.delete(studentId); } /* (non-Javadoc) * @see com.zyg.ssj.service.impl.StudentService#delete(com.zyg.ssj.bean.Student) */ public void delete(Student student){ studentDao.delete(student); } /* (non-Javadoc) * @see com.zyg.ssj.service.impl.StudentService#update(com.zyg.ssj.bean.Student) */ public void update(Student student){ studentDao.update(student); } /* (non-Javadoc) * @see com.zyg.ssj.service.impl.StudentService#getStudent(java.lang.Integer) */ public Student getStudent(Integer studentId){ return studentDao.getStudent(studentId); } /* (non-Javadoc) * @see com.zyg.ssj.service.impl.StudentService#getStudents() */ public List<Student> getStudents(){ return studentDao.getStudents(); } /* (non-Javadoc) * @see com.zyg.ssj.service.impl.StudentService#getStudentDao() */ public StudentDao getStudentDao() { return studentDao; } /* (non-Javadoc) * @see com.zyg.ssj.service.impl.StudentService#setStudentDao(com.zyg.ssj.dao.StudentDao) */ public void setStudentDao(StudentDao studentDao) { this.studentDao = studentDao; } } 

  至此，service层代码编写完毕，下一篇修改配置文件并进行整合后的单元测试。