java 关于封装jdbc操作接口的一些做法

首先建立如下图所示的包结构：

然后首先件里模型model包下的两个类：

package model;

public abstract class Bean {

   

}

下面是User类的代码：

package model;

import java.util.Date;

public class User extends Bean{

private Integer id;

private String name;

private String password;

private String sex;

private String email;

private String pwdQuestion;

private String pwdAnswer;

private Date regDate;

private String lastLoginDate;

private String lastLoginIp;

public Integer getId() {

return id;

}

public void setId(Integer id) {

this.id = id;

}

public String getName() {

return name;

}

public void setName(String name) {

this.name = name;

}

public String getPassword() {

return password;

}

public void setPassword(String password) {

this.password = password;

}

public String getSex() {

return sex;

}

public void setSex(String sex) {

this.sex = sex;

}

public S