hibernate课程 初探单表映射1-8 hibernate持久化类

java beans 的设计原则

1 公有的类

2 共有不带参数构造方法

3 私有属性

4 属性setter/getter方法

Studnet类：

package com.ddwei.student;

import java.util.Date;

public class Student {

// java beans 的设计原则  /**   * 1 公有的类 2 共有不带参数构造方法 3 私有属性 4 属性setter/getter方法   */

private int pid;// 学号  private String name;// 姓名  private String sex;// 性别  private Date birthday;// 出生日期  private String address;// 家庭地址

public Student() {

}

public Student(int pid, String name, String sex, Date birthday,    String address) {   // super();   this.pid = pid;   this.name = name;   this.sex = sex;   this.birthday = birthday;   this.address = address;  }

@Override  public String toString() {   return "Student [pid=" + pid + ", name=" + name + ", sex=" + sex     + ", birthday=" + birthday + ", address=" + address + "]";  }

public int getPid() {   return pid;  }

public void setPid(int pid) {   this.pid = pid;  }

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;  }

public String getName() {   return name;  }

public void setName(String name) {   this.name = name;  }

public String getSex() {   return sex;  }

public void setSex(String sex) {   this.sex = sex;  }

}