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);

      }     

   }

   

}