studentservice.java

通过此代码可实现 学生信息的增删改查

package com.jinshi.struts.service.impl;

import java.util.List;

import com.jinshi.struts.bean.Student;
import com.jinshi.struts.dao.IStudentDAO;
import com.jinshi.struts.service.IStudentService;

public class StudentService implements IStudentService {
    IStudentDAO studentDAO;
	public void addStudent(Student student) {
		studentDAO.save(student);

	}

	public List allStudent() {
		
		return studentDAO.findAll();
	}

	public void delStudent(Integer id) {
		Student student=studentDAO.findById(id);
		studentDAO.delete(student);

	}

	public Student getStudentById(Integer id) {
		
		return studentDAO.findById(id);
	}

	public Student loadStudent(Integer id) {
		Student student=studentDAO.findById(id);
		return studentDAO.merge(student);
	}

	public void modiStudent(Student student) {
		studentDAO.attachDirty(student);

	}

	public IStudentDAO getStudentDAO() {
		return studentDAO;
	}

	public void setStudentDAO(IStudentDAO studentDAO) {
		this.studentDAO = studentDAO;
	}

}