商品信息系统
entity层 package com.hjf.entity; public class Course { private int id; private String name; private String place; private String guige; private String number; public int getId() { return id; } public void setId(int id) { this.id = id; } public String getName() { return name; } public void setName(String name) { this.name = name; } public String getPlace() { return place; } public void setPlace(String place) { this.place = place; } public String getGuige() { return guige; } public void setGuige(String guige) { this.guige = guige; } public String getNumber() { return number; } public void