hibernate和spring的完整结合使用service层

1.使用service层;

2.StudetnService类;

package com.eduask.service;
import java.util.List;
import com.eduask.pojo.Student;
public interface StudentService {
//增加;
 void insertStudent(Student student ) throws Exception;
//删除;
 void delectStudent(int id) throws Exception;
 //修改;
 void updateStudent(Student student) throws Exception;
 //查询根据id;
 Student selectStudentById(int id) throws Exception;
 //查询所有;
 List<Student> selectAllStudent() throws Exception;
}

3.StudentServiceImpl类;

package com.eduask.service.impl;
import java.util.List;
import javax.annotation.Resource;
import org.hibernate.Session;
import org.springframework.stereotype.Service;
import com.eduask.dao.StudentDao;
import com.eduask.pojo.Student;
import com.eduask.service.StudentService;
@Service
public class StudentServiceImpl implements StudentService {
    @Resource(name="studentDaoImpl")
private StudentDao studentDao;
  public void insertStudent(Student student) throws Exception {
 studentDao.insertStudent(student);
}
public void delectStudent(int id) throws Exception {
 studentDao.deleteStudent(id);
}
public void updateStudent(Student student) throws Exception {
  studentDao.updateStudent(student);
  }
  public Student selectStudentById(int id) throws Exception {
         Student student=studentDao.getStudentById(id);
return student;
}
public List<Student> selectAllStudent() throws Exception {
  return studentDao.getStudents();
}

}

4.StudentTest类;

package com.eduask.test;
import java.util.ArrayList;
import java.util.List;
import org.hibernate.Session;
import org.hibernate.Transaction;
import org.junit.Before;
import org.junit.Test;
import org.springframework.context.support.ClassPathXmlApplicationContext;
import com.eduask.dao.StudentDao;
import com.eduask.dao.impl.StudentDaoImpl;
import com.eduask.pojo.Student;
import com.eduask.service.StudentService;
import com.eduask.service.impl.StudentServiceImpl;
public class StudentTest {
//引入spring中的bean.xml配置文件;
  private ClassPathXmlApplicationContext cx=null;
  @Before
  public void setUp(){
 cx=new ClassPathXmlApplicationContext("spring/bean.xml");
  }
  //增加;
  @Test
  public void testInsertStudent() throws Exception{
StudentService studentService=cx.getBean(StudentServiceImpl.class);
 Student student=new Student();
 student.setName("linux");
 student.setPwd("123456");
 studentService.insertStudent(student);
  }
  //删除 
  //删除需要获得id，在StudentDaoImpl类中删除方法中调用获得id的方法;
  @Test
  public void testDeleteStudent() throws Exception{
 StudentService studentService=cx.getBean(StudentServiceImpl.class);
 studentService.delectStudent(2);
  }
  //修改;
  //修改需要获得id;
  @Test
  public void testUpdateStudent() throws Exception{
 StudentService studentService=cx.getBean(StudentServiceImpl.class);
 Student student=new Student();
 student=studentService.selectStudentById(2);
 student.setPwd("11111");
 studentService.updateStudent(student);
  }
  //查询通过id;
  @Test
  public void testSelectStudent() throws Exception{
 StudentService studentService=cx.getBean(StudentServiceImpl.class);
 System.out.println(studentService.selectStudentById(2));
  }
  //查询所有;
  @Test
  public void testSelectAllStudent() throws Exception{
 StudentService studentService=cx.getBean(StudentServiceImpl.class);
 List<Student> students=studentService.selectAllStudent();
       for (Student student : students) {
          System.out.println(student);
      }     
   }
   
}