效果展示

这可能是最后一次写在控制台上跑的东西了，感觉很low，以后都投身web端了。仅仅用来测试一下连接数据库。

整体架构

sql语句(Person表)

create table person(id int(7) primary key auto_increment,name varchar(20) not null,mobile varchar(13) check( mobile like '___%-_______%'),telephone varchar(11) not null unique check( length(telphone)=11 ),email varchar(30) unique check( email like '_%@%_' ),city varchar(20),birthday date
);
Insert into person values(null,'wxd', '111-11111111', '13051800687','wxd@zzu.com','zz','2020-01-10');
Insert into person values(null,'周冬雨', '123-12580000', '18572136217','zdy@zzu.com','sh','2020-01-11');
Insert into person values(null,'周董', '124-12372300', '15572136217','zd@zzu.com','bj','2010-02-21');

(1)entity实体类(Person.java)

使用ORM思想，类中的属性，映射表中的字段。

package entiry;import java.sql.Date;/*** 类说明*        Person实体类* @author qianliangguo*/
public class Person {private Integer id;private String name;private String mobile;private String telephone;private String email;private String city;private Date birthday;public Person() {super();// TODO Auto-generated constructor stub}public Person(Integer id, String name, String mobile, String telephone,String email, String city, Date birthday) {super();this.id = id;this.name = name;this.mobile = mobile;this.telephone = telephone;this.email = email;this.city = city;this.birthday = birthday;}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 getMobile() {return mobile;}public void setMobile(String mobile) {this.mobile = mobile;}public String getTelephone() {return telephone;}public void setTelephone(String telephone) {this.telephone = telephone;}public String getEmail() {return email;}public void setEmail(String email) {this.email = email;}public String getCity() {return city;}public void setCity(String city) {this.city = city;}public Date getBirthday() {return birthday;}public void setBirthday(Date birthday) {this.birthday = birthday;}@Overridepublic String toString() {return "Person [id=" + id + ", name=" + name + ", mobile="+ mobile + ", telephone=" + telephone + ",email"+email+",city" + city + ",birthday" + birthday + "]";}
}

(2)rowmapper封装结果集(RowMapper.java)

封装结果集接口RowMapper.java

package rowmapper;import java.sql.ResultSet;/*** 类说明:*       封装结果集接口* * @author qianliangguo*/
public interface RowMapper<T> {public T mapperRow(ResultSet rs);}

封装结果集类PersonRowmapper.java

package rowmapper;import java.sql.ResultSet;
import java.sql.SQLException;import entiry.Person;/*** 类说明:*        将ResultSet封装成一个对象* @author qianliangguo*/
public class PersonRowMapper implements RowMapper {@Overridepublic Object mapperRow(ResultSet rs) {Person person = new Person();try {person.setId(rs.getInt(1));person.setName(rs.getString(2));person.setMobile(rs.getString(3));person.setTelephone(rs.getString(4));person.setEmail(rs.getString(5));person.setCity(rs.getString(6));person.setBirthday(rs.getDate(7));} catch (SQLException e) {// TODO Auto-generated catch blocke.printStackTrace();}return person;}
}

(3)service层

service接口

package service;import entity.Person;/*** 类说明:*      Service层接口* @author qianliangguo*/
public interface PersonService {//查询所有联系人信息public void queryAllPerson();//根据姓名查找联系人信息public Person QueryPersonByName(String name);//根据电话号查找联系人信息public Person QueryPersonByMobile(String mobile);//插入联系人信息public void insertPerson(Person person);//删除联系人public void deletePerson(String name);//修改联系人信息public void updatePerson(Person person);
}

service实现类

package service;import java.sql.Connection;
import java.util.List;import util.JdbcUtil3;import dao.PersonDao;
import dao.PersonDaoImp;
import entity.Person;/*** 类说明:*         Service类* @author qianliangguo*/
public class PersonServiceImp implements PersonService {PersonDao persondao = new PersonDaoImp();Connection conn = null;@Overridepublic void queryAllPerson() {try {conn = JdbcUtil3.getConnection();List<Person> person = persondao.queryAllPerson();for (Person p : person) {System.out.println(p);}} catch (Exception e) {System.out.println("数据库出现异常");}finally{try {JdbcUtil3.release(null, null, conn);} catch (Exception e) {throw new RuntimeException("释放资源发生异常");}}}@Overridepublic Person QueryPersonByName(String name) {Person person = persondao.queryPersonByName(name);/*异常情况:*        该姓名不存在*/if(person == null){throw new RuntimeException("该姓名不存在");}/*正常情况:*       加载驱动,获取连接...*/try {conn = JdbcUtil3.getConnection();   } catch (Exception e) {throw new RuntimeException("数据库异常");}finally{try {JdbcUtil3.release(null, null, conn);} catch (Exception e) {throw new RuntimeException("释放资源异常");}}return person;}@Overridepublic Person QueryPersonByMobile(String mobile) {Person person = persondao.queryPersonByMobile(mobile);/*异常情况:*       该电话号不存在*/if(person == null){throw new RuntimeException("该电话号码不存在");}/*正常情况:*        加载驱动,获取连接...*/try {conn = JdbcUtil3.getConnection();   } catch (Exception e) {throw new RuntimeException("数据库异常");}finally{try {JdbcUtil3.release(null, null, conn);} catch (Exception e) {throw new RuntimeException("释放资源异常");}}return person;}@Overridepublic void insertPerson(Person person) {try {conn = JdbcUtil3.getConnection();persondao.insertPerson(person);} catch (Exception e) {throw new RuntimeException("数据库异常");}finally{try {JdbcUtil3.release(null, null, conn);} catch (Exception e) {throw new RuntimeException("释放资源异常");}}}@Overridepublic void deletePerson(String name) {try {conn= JdbcUtil3.getConnection();persondao.deletePerson(name);} catch (Exception e) {throw new RuntimeException("数据库异常");}finally{try {JdbcUtil3.release(null, null, conn);} catch (Exception e) {throw new RuntimeException("释放资源异常");}}}@Overridepublic void updatePerson(Person person) {try {conn = JdbcUtil3.getConnection();persondao.updatePerson(person);} catch (Exception e) {throw new RuntimeException("数据库异常");}finally{try {JdbcUtil3.release(null, null, conn);} catch (Exception e) {throw new RuntimeException("释放资源异常");}}}
}

(4)view视图层

package view;/*** 类说明:*      视图层* @author qianliangguo*/import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.Date;
import java.util.List;
import java.util.Scanner;import service.PersonService;
import service.PersonServiceImp;import entity.Person;public class TellBookView {private static Scanner in = new Scanner(System.in);private static PersonService ps = new PersonServiceImp();public static void main(String[] args) throws Exception {showMain();}public static void showMain() throws Exception {System.out.println("***************欢迎访问通讯录**************");System.out.println("1.显示所有联系人      2.按姓名查找联系人      3.按号码查找联系人");System.out.println("4.添加联系人              5.删除联系人                  6.修改联系人信息    ");System.out.println("7.退出");while (true) {System.out.println("请给出你的选择：");int n = in.nextInt();switch (n) {case 1:showPerson();break;case 2:showPersonByName();;break;case 3:showPersonByMobile();break;case 4:insertPerson();break;case 5:deletePerson();break;case 6:updatePerson();break;case 7:System.out.println("您已经退出系统");System.exit(0);break;default:throw new RuntimeException("您输入有误");}}}/*** 方法说明: *       void showPerson():显示所有联系人* */public static void showPerson() {ps.queryAllPerson();}/*** 方法说明: *         showPersonByName():根据姓名查找联系人*/public static void showPersonByName() throws Exception {String name = null;System.out.println("请输入姓名:");name = in.next();Person p = ps.QueryPersonByName(name);System.out.println(p);}/*** 方法说明: *       showPersonByMobile():根据号码查找联系人*/public static void showPersonByMobile() {String mobile = null;System.out.println("请输入电话:");mobile = in.next();Person p = ps.QueryPersonByMobile(mobile);System.out.println(p);}/*** 方法说明: *        insertPerson():插入联系人*/public static void insertPerson() {try {System.out.println("请输入添加联系人的姓名:");String name = in.next();System.out.println("请输入添加联系人的mobile:");String mobile = in.next();System.out.println("请输入添加联系人的telphone:");String telphone = in.next();System.out.println("请输入添加联系人的email:");String emil = in.next();System.out.println("请输入添加联系人的city:");String city = in.next();System.out.println("请输入添加联系人的birthday:");String next = in.next();// 设置指定的日期格式SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd");// 将String转化为指定格式的java.uti.Datejava.util.Date utildate = sdf.parse(next);// 将util.date转化为longlong time = utildate.getTime();// 创建java.sql.date(long time)以便于存入数据库java.sql.Date birthday = new java.sql.Date(time);Person person = new Person(null, name, telphone, mobile, emil,city, birthday);ps.insertPerson(person);System.out.println("插入完成");} catch (ParseException e) {// TODO Auto-generated catch blocke.printStackTrace();}}/*** 方法说明: *         deletePerson():删除联系人*/public static void deletePerson() {String name = null;System.out.println("请输入要删除联系人的姓名:");name = in.next();ps.deletePerson(name);System.out.println("删除成功");}/*** 方法说明: *       updatePerson():修改联系人信息*/public static void updatePerson() {try {System.out.println("请输入需要修改信息的联系人姓名:");String name = in.next();System.out.println("请输入修改后联系人的mobile:");String mobile = in.next();System.out.println("请输入修改后联系人的telphone:");String telphone = in.next();System.out.println("请输入修改后联系人的email:");String emil = in.next();System.out.println("请输入修改后联系人的city:");String city = in.next();System.out.println("请输入修改后联系人的birthday:");String next = in.next();// 设置指定的日期格式SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd");// 将String转化为指定格式的java.uti.Datejava.util.Date utildate = sdf.parse(next);// 将util.date转化为longlong time = utildate.getTime();// 创建java.sql.date(long time)以便于存入数据库java.sql.Date birthday = new java.sql.Date(time);Person person = new Person(null, name, telphone, mobile, emil,city, birthday);ps.updatePerson(person);System.out.println("修改完成");} catch (ParseException e) {// TODO Auto-generated catch blocke.printStackTrace();}}
}

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手机通讯录系统(三层架构+JDBC+MySQL)

文章目录

效果展示

整体架构

sql语句(Person表)

(1)entity实体类(Person.java)

(2)rowmapper封装结果集(RowMapper.java)

(3)service层

(4)view视图层

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