Note: all of codes in this repository were only for my personal practice purposes, some design patterns maybe not so correct, DO NOT use it as your tutorial

注意: 這裡的所有代碼只是我拿來自我練習，裡面許多設計模式也許不那麼正確，請勿拿來當你的編程教材

The user will fill in account and password infomation
there are three posible reactions
用戶會填入帳號和密碼，系統會有三種反應

• Login Succcessfully （登入成功）
• Login Failed （登入失敗）
• User not existed （用戶不存在）

Via Maven command:

$ mvn clean
$ mvn package

then you will find My-project-01.war in target sub-directory

this project's need one table for its persistence entity (User) ,
and here is the SQL you could use it to generate table,
and create 3 users for you, password column were hashed by MD5 algorithm,
their login id and passoword are :

• admin : adminpass
• tony : tonypass
• lisa : lisapass

此專案需要一個資料表來存儲它的持久化資料（User）， 這裡的SQL可以讓你產生表，還有三個預設的用戶
密碼是被md5加密過的，三人的帳號和密碼分別是

• admin : adminpass
• tony : tonypass
• lisa : lisapass

create database db_spring;
use db_spring;

CREATE TABLE IF NOT EXISTS TB_YOAN_USER (
    id_bin binary(16) not null,
    id_text varchar(36) generated always as
 (insert(
    insert(
      insert(
        insert(hex(id_bin),9,0,'-'),
        14,0,'-'),
      19,0,'-'),
    24,0,'-')
 ) virtual,
    name varchar(100) not null,
    account varchar(12) not null,
    password varchar(32) not null,
    CONSTRAINT login_unique UNIQUE (account),
    PRIMARY KEY ( id_bin )
)  ENGINE=INNODB;

insert into TB_YOAN_USER (id_bin,name,account,password) values(unhex(replace(uuid(),'-','')), 'Admin','admin','a05f9d34b9ca3dcc93bdee7bc37b7e0e');
insert into TB_YOAN_USER (id_bin,name,account,password) values(unhex(replace(uuid(),'-','')), 'Tony','tony','ac61a6ff1d90274772c37ad74758877c');
insert into TB_YOAN_USER (id_bin,name,account,password) values(unhex(replace(uuid(),'-','')), 'Lisa','lisa','f5971d79c9d7fa030a7b4652ba6bc7a9');

Please see

click here try it out
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if i could not pay for domain name or vps payment

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