项目的文件图
数据库中插入了数据
java
package dates;
import java.sql.Connection;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.sql.Statement;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.Collections;
import java.util.List;
public class DBOperation{
private MyDBConnection myDB=null;
private Connection conn=null;
private Statement stmt=null;
private int scores;
private int number1;
private int number2;
private String name;
private String password;
public DBOperation(MyDBConnection myDB){
conn=myDB.getMyConnection();
stmt=myDB.getMyStatement();
number1=0;
number2=0;
}
public void insertData(String name,String password,int scores){
try{
String newType1=new String(name.getBytes(),"GBK");//字节转码
String newType2=new String(password.getBytes(),"GBK");
String sql="INSERT INTO player(scores,name,password)VALUES("+scores+",'"+newType1+"','"+newType2+"')";
stmt.executeUpdate(sql);//更新语句
}catch(Exception e1){
e1.printStackTrace();
}
}
public void deleteData(int scores){
String sql="DELETE FROM player WHERE scores="+scores+"";
System.out.print(sql);
try{
stmt.executeUpdate(sql);
//System.out.println("一条记录被删除");
}catch(SQLException e){
e.printStackTrace();
}
}
public void updateData(int mscores,int scores,String name,String password){//修改
String sql="UPDATE player SET scores="+scores+",name='"+name+"',password='"+password+"'where scores="+mscores+"&&name='"+name+"'&&password='"+password+"'";
try{
stmt.executeUpdate(sql);
}catch(SQLException e){
e.printStackTrace();
}
}
public boolean selectPassword(String mpassword){
String sql="SELECT scores,name,password FROM player";
try{
ResultSet rs=stmt.executeQuery(sql);//返回结果集
while(rs.next()){//指针向后移动
password=rs.getString("password");
number2++;
//System.out.print(rs.getString("password")+" ");
if(password.equals(mpassword)&&(number2==number1)){
//System.out.print("number2:"+number2);
return true;
}
}
}catch(Exception e){
e.printStackTrace();
}
return false;
}
public boolean selectName(String mname){
String sql="SELECT scores,name,password FROM player";
try{
ResultSet rs=stmt.executeQuery(sql);//返回结果集
while(rs.next()){//指针向后移动
name=rs.getString("name");
number1++;
if(name.equals(mname)){
//System.out.print("number1:"+number1);
return true;
}
}
}catch(Exception e){
e.printStackTrace();
}
return false;
}
public int selectScores(String name,String password){
String sql="SELECT scores,name,password FROM player where name='"+name+"'&&password='"+password+"'";
try{
ResultSet rs=stmt.executeQuery(sql);//返回结果集
while(rs.next()){//指针向后移动
scores=rs.getShort("scores");
return scores;
}
}catch(Exception e){
e.printStackTrace();
}
return 0;
}
public void selectAll(){
int i=0;
String sql="SELECT scores,name,password FROM player";
try{
ResultSet rs=stmt.executeQuery(sql);//返回结果集
while(rs.next()){//指针向后移动
name=rs.getString("name");
password=rs.getString("password");
scores=rs.getShort("scores");
}
}catch(Exception e){
e.printStackTrace();
}
}
public int getScores(){
return scores;
}
public String getName(){
return name;
}
public String getPassword(){
return password;
}
public void setNumber1(){
number1=0;
}
public void setNumber2(){
number2=0;
}
}
package dates;
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.SQLException;
import java.sql.Statement;
public class MyDBConnection{
private String DBDriver;//链接类
private String DBURL;
private String DBUser;
private String DBPass;
private Connection conn=null;
private Statement stmt=null;
public MyDBConnection(String DBDriver,String DBURL,String DBUser,String DBPass){
this.DBDriver ="com.mysql.cj.jdbc.Driver";
this.DBURL ="jdbc:mysql://localhost:3366/info?useUnicode=true&characterEncoding=utf8&serverTimezone=GMT";
this.DBUser ="root";
this.DBPass ="123";
try{
Class.forName(this.DBDriver);//加载驱动程序
System.out.println("数据库驱动程序加载成功");
}catch(Exception e){
e.printStackTrace();
}
try{
conn=DriverManager.getConnection(this.DBURL, this.DBUser, this.DBPass);//取得链接对象
stmt=conn.createStatement();//取得SQL语句对象
System.out.print("链接数据库成功");
}catch(Exception e){
e.printStackTrace();
}
}
public Connection getMyConnection(){
return conn;
}
public Statement getMyStatement(){
return stmt;
}
public void closeMyConnection(){
try{
stmt.close();
conn.close();
}catch(SQLException e){
e.printStackTrace();
}
}
public String toString(){
return "数据库驱动程序"+DBDriver+"，连接地址"+DBURL+"，用户名"+DBUser+"，密码"+DBPass;
}
}
package ui;
public class Main {
public static void main(String args[]){
Window window=new Window();
window.show();
}
}
package ui;
import java.awt.Button;
import java.awt.Color;
import java.awt.Font;
import java.awt.Graphics;
import java.awt.Image;
import java.awt.event.*;
import java.io.File;
import java.io.IOException;
import javax.imageio.ImageIO;
import javax.swing.*;
import dates.DBOperation;
import dates.MyDBConnection;
public class Window implements MouseListener {
public JFrame frame = new JFrame("登陆窗口");
private JLabel label1=new JLabel("游戏id:");
private JTextField txt1=new JTextField();
private JLabel label2=new JLabel("密 码:");
private JTextField txt2=new JTextField();
private JButton btn1=new JButton("登录");
private JButton btn2=new JButton("注册");
private JButton btn3=new JButton("退出");
private String text1;
private String text2;
private int distinguish;
String DBDriver="com.mysql.cj.jdbc.Driver";
String DBURL="jdbc:mysql://localhost:3366/info?useUnicode=true&characterEncoding=utf8&serverTimezone=GMT";
String DBUser="root";
String DBPass="123";
MyDBConnection myDB=new MyDBConnection(DBDriver,DBURL,DBUser,DBPass);
public DBOperation myOpr=new DBOperation(myDB);
public Window(){
}
public void show(){
frame.setLayout(null);
frame.setSize(470,300);
frame.setLocation(400, 200);
Font font=new Font("华文行楷",Font.BOLD,20);
label1.setFont(font);
label1.setForeground(Color.gray);
label2.setFont(font);
label2.setForeground(Color.gray);
txt1.setOpaque(false);
txt2.setOpaque(false);
btn1.setContentAreaFilled(false);
btn1.setFont(font);
btn1.setForeground(Color.gray);
btn1.setBorder(BorderFactory.createRaisedBevelBorder());
btn2.setContentAreaFilled(false);
btn2.setFont(font);
btn2.setBorder(BorderFactory.createRaisedBevelBorder());
btn2.setForeground(Color.gray);
btn3.setContentAreaFilled(false);
btn3.setFont(font);
btn3.setBorder(BorderFactory.createRaisedBevelBorder());
btn3.setForeground(Color.gray);
JPanel bj = new JPanel() {
protected void paintComponent(Graphics g) {
Image bg;
try {
bg = ImageIO.read(new File("src/image/开始背景.PNG"));
g.drawImage(bg, 0, 0, getWidth(), getHeight(), null);
} catch (IOException e) {
e.printStackTrace();
}
}
};
label1.setBounds(100,50,100,100);
txt1.setBounds(180,90, 150, 20);
label2.setBounds(100,80,100,100);
txt2.setBounds(180,120, 150, 20);
btn1.setBounds(100,200,80,20);
btn2.setBounds(190,200,80,20);
btn3.setBounds(280,200,80,20);
frame.setContentPane(bj);
frame.setLayout(null);
frame.add(label1);
frame.add(txt1);
frame.add(label2);
frame.add(txt2);
frame.add(btn1);
frame.add(btn2);
frame.add(btn3);
btn1.addMouseListener(this);
btn2.addMouseListener(this);
btn3.addMouseListener(this);
frame.setVisible(true);
}
public void mouseClicked(MouseEvent arg0) {
text1=txt1.getText();
text2=txt2.getText();
if(distinguish==1){
if(myOpr.selectName(text1)){
if(myOpr.selectPassword(text2)){
JOptionPane.showMessageDialog(null, "登录成功","提示",2);
txt1.setText("");
txt2.setText("");
distinguish=4;
frame.setVisible(false);
}else{
JOptionPane.showMessageDialog(null, "密码错误","提示",2);
txt2.setText("");
myOpr.setNumber1();
myOpr.setNumber2();
}
}else{
JOptionPane.showMessageDialog(null, "此id不存在，请注册","提示",2);
txt1.setText("");
txt2.setText("");
}
}
if(distinguish==2){
String logi=(String) JOptionPane.showInputDialog(null,"请输入你的id：\n","注册",JOptionPane.PLAIN_MESSAGE,null,null,"在这输入");
String pas=(String) JOptionPane.showInputDialog(null,"请输入你的密码：\n","注册",JOptionPane.PLAIN_MESSAGE,null,null,"在这输入");
myOpr.insertData(logi,pas,0);
JOptionPane.showMessageDialog(null, "注册成功","提示",2);
}
if(distinguish==3){
int n = JOptionPane.showConfirmDialog(null, "是否退出?", "游戏结束",JOptionPane.YES_NO_OPTION);
myDB.closeMyConnection();
if(n==JOptionPane.YES_OPTION){
System.exit(1);
}
}
}
public void mouseEntered(MouseEvent arg0) {
if (arg0.getSource() == btn1) {
distinguish=1;
btn1.setForeground(Color.red);
btn1.setBorder(BorderFactory.createLoweredBevelBorder());
btn2.setForeground(Color.gray);
btn2.setBorder(BorderFactory.createRaisedBevelBorder());
btn3.setForeground(Color.gray);
btn3.setBorder(BorderFactory.createRaisedBevelBorder());
}
if (arg0.getSource() == btn2) {
distinguish=2;
btn1.setForeground(Color.gray);
btn1.setBorder(BorderFactory.createRaisedBevelBorder());
btn2.setForeground(Color.red);
btn2.setBorder(BorderFactory.createLoweredBevelBorder());
btn3.setForeground(Color.gray);
btn3.setBorder(BorderFactory.createRaisedBevelBorder());
}
if (arg0.getSource() == btn3) {
distinguish=3;
btn1.setForeground(Color.gray);
btn1.setBorder(BorderFactory.createRaisedBevelBorder());
btn2.setForeground(Color.gray);
btn2.setBorder(BorderFactory.createRaisedBevelBorder());
btn3.setForeground(Color.red);
btn3.setBorder(BorderFactory.createLoweredBevelBorder());
}
}
public void mouseExited(MouseEvent arg0) {
distinguish=0;
label1.setForeground(Color.gray);
label2.setForeground(Color.gray);
txt1.setOpaque(false);
txt2.setOpaque(false);
btn1.setContentAreaFilled(false);
btn1.setForeground(Color.gray);
btn1.setBorder(BorderFactory.createRaisedBevelBorder());
btn2.setContentAreaFilled(false);
btn2.setBorder(BorderFactory.createRaisedBevelBorder());
btn2.setForeground(Color.gray);
btn3.setContentAreaFilled(false);
btn3.setBorder(BorderFactory.createRaisedBevelBorder());
btn3.setForeground(Color.gray);
}
public void mousePressed(MouseEvent arg0) {
}
public void mouseReleased(MouseEvent arg0) {
}
public String getText1(){
return text1;
}
public String getText2(){
return text2;
}
public int getDistinguish(){
return distinguish;
}
}
源码文件连接https://download.csdn.net/download/qq_44257240/11317098mysql