Hibernate初探之單表映射——建立持久化類

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編寫第一個Hibernate例子第二步：建立持久化類（持久化類的設計原則要遵循javabeans的設計原則）javabeans的設計原則：

1.公有的類
2.提供公有的不帶參數的預設的構造方法
3.屬性私人
 4.屬性setter/getter封裝

建立一個Students類（持久化類）

import java.util.Date;//學生類public class Students {// 1.公有的類// 2.提供公有的不帶參數的預設的構造方法// 3.屬性私人// 4.屬性setter/getter封裝private int sid;// 學號private String sname;// 姓名private String gender;// 性別private Date birthday;// 出生日期private String address;// 地址public Students() {}public Students(int sid, String sname, String gender, Date birthday,String address) {// super();this.sid = sid;this.sname = sname;this.gender = gender;this.birthday = birthday;this.address = address;}public int getSid() {return sid;}public void setSid(int sid) {this.sid = sid;}public String getSname() {return sname;}public void setSname(String sname) {this.sname = sname;}public String getGender() {return gender;}public void setGender(String gender) {this.gender = gender;}public Date getBirthday() {return birthday;}public void setBirthday(Date birthday) {this.birthday = birthday;}public String getAddress() {return address;}public void setAddress(String address) {this.address = address;}@Overridepublic String toString() {return "Students [sid=" + sid + ", sname=" + sname + ", gender="+ gender + ", birthday=" + birthday + ", address=" + address+ "]";}}

 

Hibernate初探之單表映射——建立持久化類