👺 Reading guide

Recently, Feixue is brushing Java. After all, his studies are coming. He has to consider the road behind. It doesn't make sense to be a back-end person who doesn't understand the basics of Java and learn several mainstream frameworks. Then I tried to write the king glory Locke Kingdom simulation game that I, a novice Java, can complete. For the time being, the front end has not been added. After painting the framework, I will add it. Well, we don't talk much nonsense. Let's have a look

👺 Project introduction

The project uses MVC+DAO mode, which is also a popular mode at present.
MVC means

letter	Express meaning
M	Model, model layer, Java Bean
V	view layer, servlet and jsp front-end page
C	controller control layer

DAO is the data persistence layer.
The whole project has no features. Its only feature is that it is simple and has a large amount of code. The attached video is especially suitable for novices, and the content also covers some technologies such as radiation, regular expression and so on.

There are many Java classes in each package

👺 Function introduction

It is emphasized that the names in the introduction are not malicious, but I was deeply attracted by them in the era of awakening during my creation.

King glory Locke Kingdom simulation game
1,System requirements:
User:
1,Login enter the user name and password to log in 
2,Select heroes to play
 Including: Hero type, hero attack value and attack hit rate
 The current types are Daji and Diao Chan
3,After the game starts, the hero launches an attack and calculates the score according to the hero's attack value and hit rate
4,The score can be recorded at the end of the game
5,You can view previous game scores 

Administrator:
1,Login default user name: admin Password: 123 ,Late from XML Read from file
 If the user name and password are entered incorrectly three times, you will exit the game
2,New players
3,Modify player
4,Delete player
5,Query player
6,Query game
7,Score statistics
8,Parameter setting 

2,System interface:

1,home page

~~~~~~~~~~~~~~~Menu interface~~~~~~~~~~~~~~~~~~

	   Locke Kingdom version of the king's glory

1.Player login

2.Administrator login

3.sign out

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Please enter the value before you want to select the mode:

2,Select "1. Player login"
******************************************************

Player login

Please enter user name:
Please input a password:

******************************************************
If the user name and password are entered correctly (the administrator needs to add players)
The interface appears as follows:

Congratulations on your successful login!

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
	  King glory Locke Kingdom Edition

1·Start the game
2·View results
0·Return to superior
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Please select:

	2.1 Start the game
	Your selection succeeded!
	Start the game!
	Welcome to the king's glory Locke Kingdom virtual screen
	Daji: there are three main spell attack skills
	Skill 1: Monthly blade attack value 100
	Skill 2: enchantment attack value 150
	Skill 3: Battle of the fox attack value 300
	Please enter the skills you want to use:
	1
	Skill: Moon blade
	Description: deals spell damage to enemies
	
	Great, teach the opposite side to be a man!

	
	Daji: there are three main spell attack skills
	Skill 1: Monthly blade attack value 100
	Skill 2: enchantment attack value 150
	Skill 3: Battle of the fox attack value 300
	Please enter the skills you want to use:
	2
	
	Oh, I missed mine!
	
	
	Daji: there are three main spell attack skills
	Skill 1: Monthly blade attack value 100
	Skill 2: enchantment attack value 150
	Skill 3: Battle of the fox attack value 300
	Please enter the skills you want to use:
	3
	Skill: Fox war
	Description: deals spell damage to places+Acceleration and deceleration effect
	
	Success is God!
	

	Your score at the end of the attack: 400
	Continue?(Yes or no)


	2.2 View results
 Game time				        fraction
2021-08-07 00:00:00.0		600
2021-08-08 07:56:37.0		450
2021-08-08 16:38:03.0		400
1,Return to superior
	2.3 Return to superior

 Return to home page

3,Select "2. Administrator login"
******************************************************

Administrator login

Please enter user name:
Please input a password:

******************************************************
If the user name and password are entered correctly (the default is admin)
The interface appears as follows:
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
1·New players
2·Modify player
3·Delete player
4·Query player
5·Query game hero
6·Score statistics
7·Parameter setting
0·Return to superior
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
If you enter the wrong password three times, you will exit the game. The system will be shut down

	3.1 New players
 New players:
Please enter the player's login name: (it must have letters and be unique in the system)
Please enter the player's password: (there must be letters and numbers, and at least 6 characters)
Please enter the player's nickname:
Please enter the gender of the player: (male or female only)
Please enter the age of the player: (only positive integers can be entered, and the maximum can not be greater than 99)


New player succeeded!
1,Continue to add players
0,Return to superior

	3.2 Modify player
 Please select the player to modify:
1,xx1	2,xx2	3,xx3	4,XX4
 Select "1" to modify xx1
 Select the attribute to modify:
1,Player's password: (must have letters and numbers, and at least 6 digits)
2,Player's nickname:
3,Gender of player: (only male or female can be entered)
4,Player's age: (only positive integers can be entered, and the maximum can not be greater than 100)

0,Return to superior

	3.3 Delete player
 Please select the player to delete:
1,xx1	2,xx2	3,xx3	4,XX4
 Select "1" to delete xx1
 You cannot delete after deleting all

0,Return to superior

	3.4 Query player
	1·Query all players
	2·Search by login name
	0·Back off
	loginname	 nickname	 sex	 age	
	writer better known as Lu Xun	    Lu Xun	       male	18
	Ah Xiu	       leader	    male	20
	Li Dazhao	    stick to tradition	       male	19
	123a	Fertilizer science	male	23


0,Return to superior
********************************************************************

	3.5 Query game hero
*******************************************************************************
Hero name: Daji
 Skill 1: Moon blade attack power: 100 hit rate: 90
 Second skill: Charm attack power: 150 hit rate: 80
 Three skills: Fox war attack power: 300 hit rate: 60
 Hero name: Diao Chan
 One skill: Solo attack: 90 hit rate: 90
 Second skill: slander and seduction attack power: 150 hit rate: 80
 Three skills: worship the moon attack power: 200 hit rate: 80

	3.6 Score statistics
 game player	     Total score	  Combat power index
	Zhou Shuren 1450      ¤¤¤¤¤

	3.7 Parameter setting
	1·Login name of administrator
	2·Administrator password
	3·Maximum login times for administrators
	
	The following is only for hero details
	hero ID: 1  Hero name: Daji
	Skill 1 damage value: 100: Hit rate: 90
	Skill 2 damage value: 150: Hit rate: 80
	Skill 3 damage value: 300: Hit rate: 60
	~~~
	hero ID: 2  Hero name: Diao Chan
	Skill 1 damage value: 90: Hit rate: 90
	Skill 2 damage value: 150: Hit rate: 80
	Skill 3 damage value: 200: Hit rate: 80
	~~~
4,Select "0, exit"
The system prompts "the game is over..." and the system is closed

👺 Established data sheet

Partial code display

public class AdminManager {
	/**
	 * Sign in
	 * @throws SQLException 
	 */
	//
	DBUtil db=new DBUtil();
	SysManager sm=new SysManager();
	PlayerDao pd=new PlayerDao();
	GameDao gd=new GameDao();
	public boolean AdminOperate() throws SQLException {
		boolean b=false;
		for(int i=0;i<DataInit.login.getLogintime();i++) {
			Login login=Menu.getLoginUI();
			b=this.checkoutLogin(login);
			if(b) {
				System.out.println("Congratulations on your successful login!!!\n\n");
				//Loop through the administrator interface so that if you don't press 0, you won't return to the previous layer
				boolean feixue=true;
				while(feixue) {
				int c=Menu.getAdminUI();
				
				feixue=this.adminOperate2(c);
				
				}
			}
			else {
				System.out.println("Please log in again!");
				if(DataInit.login.getLogintime()-i>0) {
					System.out.println("You can also enter"+(DataInit.login.getLogintime()-i)+"second");
				}
			}
		}
		return b;
	}

//Game process
	public void play() throws SQLException {
		System.out.println("Welcome to the king's glory Locke Kingdom virtual screen");
		int score=0;
		//Select hero
		hero h=heros;
		for(int i=0;i<3;i++){
		score=this.selectSkill(h)+score;
		System.out.println("\n");
		}
		System.out.println("The attack is over"+player.get("nickname")+"Your score:"+score);
		//Save game records
		Game game=new Game();
		game.setPid(Integer.parseInt(player.get("id")));
		game.setScore(score);
		gd.insertGame(game);
	}
	
	//Skill display
	public int selectSkill(hero h) {
		//Generate random number
		double ran=Math.random()*10;
		//Show each hero's skills
		h.display();
		System.out.println("Please enter the skills you want to use:");
		int s=InputHelper.getInt();

		switch(s) {
		case 1:
			
			int pro1 =h.probability1/10;
			if(ran<=pro1) {
				h.skill1();
				System.out.println("\n Great, teach the opposite side to be a man!");
				return h.skill1;
			}else {
				System.out.println("\n Oh, missed!");
			}
			break;
		case 2:
			
			int pro2 =h.probability2/10;
			if(ran<=pro2) {
				h.skill2();
				System.out.println("\n666");
				return h.skill2;
			}
			else {
				System.out.println("\n Oh, I missed mine!");
			}
			break;
		case 3:
			int pro3 =h.probability3/10;
			if(ran<=pro3) {
				h.skill3();
				System.out.println("\n Success is God!");
				return h.skill3;
			}else {
				System.out.println("\n Brother, you are not skilled!");
			}
			break;
		default:
			System.out.println("Please enter the correct skills!");
		
		}
		return 0;
	}
	

public class GameDao {
	DBUtil db=new DBUtil();
	//The new game starts again
	public int insertGame(Game game) throws SQLException {
		//now() has its own function to obtain the current time of the file
		String sql="insert into wzry_game(pid,playtime,score) values(?,now(),?)";
		Object[] obj= {game.getPid(),game.getScore()};
		return db.upDate(sql, obj);
	}
	//Players query their own game records
	public List<Map<String,String>> queryGameByPid(int id) throws SQLException{
		String sql="select b.*,a.loginname from wzry_player a,wzry_game b where a.id=b.pid and pid=?";
		Object[] obj= {id};
		List<Map<String,String>> list=db.query(sql, obj);
		return list;
	}
	//query
	public List<Map<String,String>> queryAllGame() throws SQLException{
		String sql="select b.*,a.loginname from wzry_player a,wzry_game b where a.id=b.pid";
		List<Map<String,String>>list=db.query(sql, null);
		
		return list;
		
	}
	//Score statistics
	
	public List<Map<String,String>> queryGameScore() throws SQLException {
		String sql="select a.loginname as game player,sum(b.score) as Total score,case "
		            +" when sum(b.score)>=500 then '¤¤¤¤¤' "
				    +" when sum(b.score)>=400 and sum(b.score)<500 then '¤¤¤¤' else '¤¤¤' end 'lucky'"
		            +" from wzry_player as a inner join wzry_game as b on a.id=b.pid"
					+" group by a.loginname";
		
		return db.query(sql, null);
	}
	//Query all heroes
	public List<Map<String,String>> queryAllHeros() throws SQLException{
		String sql="select * from heros";
		List<Map<String,String>> heros=db.query(sql, null);
		return heros;
	}
	

}

👺 Particular attention

In addition, if you want to obtain the basic knowledge and resources of MySQL, you can come here to have a look: Portal The source code will be sent to csdn later. If you need to practice urgently, you can send a private letter first. I'll send it to you separately first.

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