Java web 学生管理系统 要求给个源代码和包

图书管理系统是一个比较常见的课程设计课题

一般来说可以用jsp+servlet框架来实现, 这个可以通过自己的封装, 把路由精简一下, 也可以用最新的servlet注解, 也是比较方便开发的。最近的几个项目都是这么用的。

如果是比较复杂的项目还是推荐用spring全家桶, 这个非常常用

import javaawtBorderLayout;

import javaawtDimension;

import javaawtToolkit;

import javaxswingJFrame;

@SuppressWarnings("serial")

public class MainClass extends JFrame {

ControlSnake control;

Toolkit kit;

Dimension dimen;

public static void main(String[] args) {

new MainClass("my snake");

}

public MainClass(String s) {

super(s);

control = new ControlSnake();

controlsetFocusable(true);

kit = ToolkitgetDefaultToolkit();

dimen = kitgetScreenSize();

add(control);

setLayout(new BorderLayout());

setLocation(dimenwidth / 3, dimenheight / 3);// dimenwidth/3,dimenheight/3

setSize(FWIDTH, FHEIGHT);

setDefaultCloseOperation(JFrameEXIT_ON_CLOSE);

setResizable(false);

setVisible(true);

}

public static final int FWIDTH = 315;

public static final int FHEIGHT = 380;

}

import javaawtColor;

import javaawtDimension;

import javaawtGraphics;

import javaawtPoint;

import javaawteventActionEvent;

import javaawteventActionListener;

import javaawteventKeyAdapter;

import javaawteventKeyEvent;

import javautilArrayList;

import javautilRandom;

import javaxswingJOptionPane;

import javaxswingJPanel;

import javaxswingTimer;

@SuppressWarnings("serial")

public class ControlSnake extends JPanel implements ActionListener {

Random rand;

ArrayList<Point> list, listBody;

String str, str1;

static boolean key;

int x, y, dx, dy, fx, fy, flag;

int snakeBody;

int speed;

public ControlSnake() {

snakeBody = 1;

str = "上下左右方向键控制 P键暂停";

str1 = "现在的长度为:" + snakeBody;

key = true;

flag = 1;

speed = 700;

rand = new Random();

list = new ArrayList<Point>();

listBody = new ArrayList<Point>();

x = 5;

y = 5;

listadd(new Point(x, y));

listBodyadd(listget(0));

dx = 10;

dy = 0;

fx = randnextInt(30) 10 + 5;// 2

fy = randnextInt(30) 10 + 5;// 2

setBackground(ColorBLACK);

setSize(new Dimension(318, 380));

final Timer time = new Timer(speed, this);

timestart();

addKeyListener(new KeyAdapter(){

public void keyPressed(KeyEvent e) {

if (egetKeyCode() == 37) {

dx = -10;

dy = 0;

} else if (egetKeyCode() == 38) {

dx = 0;

dy = -10;

} else if (egetKeyCode() == 39) {

dx = 10;

dy = 0;

} else if (egetKeyCode() == 40) {

dx = 0;

dy = 10;

} else if (egetKeyCode() == 80) {

if (flag % 2 == 1) {

timestop();

}

if (flag % 2 == 0) {

timestart();

}

flag++;

}

}

});

}

public void paint(Graphics g) {

gsetColor(ColorWHITE);

gfillRect(0, 0, 400, 400);

gsetColor(ColorDARK_GRAY);

gdrawLine(3, 3, 305, 3);

gdrawLine(3, 3, 3, 305);

gdrawLine(305, 3, 305, 305);

gdrawLine(3, 305, 305, 305);

gsetColor(ColorPINK);

for (int i = 0; i < listBodysize(); i++) {

gfillRect(listBodyget(i)x, listBodyget(i)y, 9, 9);

}

gfillRect(x, y, 9, 9);

gsetColor(ColorORANGE);

gfillRect(fx, fy, 9, 9);

gsetColor(ColorDARK_GRAY);

str1 = "现在的长度为:" + snakeBody;

gdrawString(str, 10, 320);

gdrawString(str1, 10, 335);

}

public void actionPerformed(ActionEvent e) {

x += dx;

y += dy;

if (makeOut() == false) {

JOptionPaneshowMessageDialog(null, "重新开始");

speed = 700;

snakeBody = 1;

x = 5;

y = 5;

listclear();

listadd(new Point(x, y));

listBodyclear();

listBodyadd(listget(0));

dx = 10;

dy = 0;

}

addPoint(x, y);

if (x == fx && y == fy) {

speed = (int) (speed 08);//速度增加参数

if (speed < 200) {

speed = 100;

}

fx = randnextInt(30) 10 + 5;// 2

fy = randnextInt(30) 10 + 5;// 2

snakeBody++;// 2

} // 2

repaint();

}

public void addPoint(int xx, int yy) {

// 动态的记录最新发生的50步以内的移动过的坐标

// 并画出最新的snakeBody

if (listsize() < 100) {//蛇身长度最长为100

listadd(new Point(xx, yy));

} else {

listremove(0);

listadd(new Point(xx, yy));

}

if (snakeBody == 1) {

listBodyremove(0);

listBodyadd(0, listget(listsize() - 1));

} else {

listBodyclear();

if (listsize() < snakeBody) {

for (int i = listsize() - 1; i > 0; i--) {

listBodyadd(listget(i));

}

} else {

for (int i = listsize() - 1; listBodysize() < snakeBody; i--) {

listBodyadd(listget(i));

}

}

}

}

public boolean makeOut() {

if ((x < 3 || y < 3) || (x > 305 || y > 305)) {

return false;

}

for (int i = 0; i < listBodysize() - 1; i++) {

for (int j = i + 1; j < listBodysize(); j++) {

if (listBodyget(i)equals(listBodyget(j))) {

return false;

}

}

}

return true;

}

}

/贪吃蛇代码/

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