数据库
数据库实体的抽象
编写对应的数据库表
编写pojo程序
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| package com.white.pojo;
public class user { private Integer id; private String username; private String password; private String call;
public Integer getId() { return id; }
public void setId(Integer id) { this.id = id; }
public String getUsername() { return username; }
public void setUsername(String username) { this.username = username; }
public String getPassword() { return password; }
public void setPassword(String password) { this.password = password; }
public String getCall() { return call; }
public void setCall(String call) { this.call = call; }
@Override public String toString() { return "user{" + "id=" + id + ", username='" + username + '\'' + ", password='" + password + '\'' + ", call='" + call + '\'' + '}'; }
public user() {
}
public user(Integer id, String username, String password, String call) { this.id = id; this.username = username; this.password = password; this.call = call; } }
|
层次
不同层次有不同的包
web层
com.white.web/servlet/controller
service册
com.white.service service接口包
com.white.service.impl service接口实现类
dao持久层
com.white.dao Dao接口包
com.white.dao.impl Dao接口包
实体bean对象
com.white.pojo/entity/domain/bean javabear类
测试包
com.white.text/junit
工具类
com.white.utils