diff --git a/01_Intellij_Java_universal_20240419/01_Intellij_Java_universal_20240419.iml b/01_Intellij_Java_universal_20240419/01_Intellij_Java_universal_20240419.iml new file mode 100644 index 0000000..3620b19 --- /dev/null +++ b/01_Intellij_Java_universal_20240419/01_Intellij_Java_universal_20240419.iml @@ -0,0 +1,12 @@ + + + + + + + + + + + + \ No newline at end of file diff --git a/01_Intellij_Java_universal_20240419/untitled/file2.txt b/01_Intellij_Java_universal_20240419/untitled/file2.txt deleted file mode 100644 index 2ef2887..0000000 --- a/01_Intellij_Java_universal_20240419/untitled/file2.txt +++ /dev/null @@ -1 +0,0 @@ -7153-767-7764-9819-6754-3453-9423-86-5411-7717-9489-5214-5481-6695-8273 \ No newline at end of file diff --git a/01_Intellij_Java_universal_20240419/untitled/src/javaAssignment_20240528/Customer.java b/01_Intellij_Java_universal_20240419/untitled/src/javaAssignment_20240528/Customer.java index e1b816b..736535b 100644 --- a/01_Intellij_Java_universal_20240419/untitled/src/javaAssignment_20240528/Customer.java +++ b/01_Intellij_Java_universal_20240419/untitled/src/javaAssignment_20240528/Customer.java @@ -6,36 +6,31 @@ package javaAssignment_20240528; -public class Customer implements Runnable{ +public class Customer implements Runnable { // 用户姓名 private String customerName; // 存取次数 - private int customerNum; + private int customerNum = 3; // 构造函数 - public Customer (String customerName){ - this.customerName = customerName; - } + // public Customer (String customerName){ + // this.customerName = customerName; + // } // 重写 run 方法 @Override - public void run (){ + public void run() { // 重复指定次数 - for (int i = 0; i < this.customerNum; i++){ + for (int i = 0; i < this.customerNum; i++) { // 输出用户存款信息 - System.out.println("User: " + this.customerName + " Deposit 100"); + System.out.println("User: " + Thread.currentThread().getName() + " Deposit 100"); // 调用存款方法 deposit(100); } } // 存款方法 - private synchronized void deposit (int amount){ + private synchronized void deposit(int amount) { Bank.Funds(amount); } - - // 设置存款次数 - public void setDepositNum(int num){ - this.customerNum = num; - } -} +} \ No newline at end of file diff --git a/01_Intellij_Java_universal_20240419/untitled/src/javaAssignment_20240528/test.java b/01_Intellij_Java_universal_20240419/untitled/src/javaAssignment_20240528/test.java index 8febc67..3882605 100644 --- a/01_Intellij_Java_universal_20240419/untitled/src/javaAssignment_20240528/test.java +++ b/01_Intellij_Java_universal_20240419/untitled/src/javaAssignment_20240528/test.java @@ -39,22 +39,17 @@ public class test { * Class * 1. Bank.java * 2. Customer.java - * + */ // 通过 Bank 类实例化 b_1 对象 Bank b_1 = new Bank("Best Nigger Bank"); // 通过 Customer 实例化两个用户对象 - Customer c_1 = new Customer("Todd"); - Customer c_2 = new Customer("KoDick"); - - // 调用其中的方法设置每个人的存款次数 - c_1.setDepositNum(3); - c_2.setDepositNum(3); + Customer c_1 = new Customer(); // 通过 Thread 实例化两个线程类 - Thread t_1 = new Thread(c_1); - Thread t_2 = new Thread(c_2); + Thread t_1 = new Thread(c_1, "Todd"); + Thread t_2 = new Thread(c_1, "Todd Copy"); // 在开始存款前输出一次银行当前的余额 System.out.println("Now Bank Balance: " + b_1.getBankBalance()); @@ -74,6 +69,6 @@ public class test { // 输出当前银行余额 System.out.println("Now Bank Balance: " + b_1.getBankBalance()); - */ + /**/ } } diff --git a/01_Intellij_Java_universal_20240419/untitled/src/javaAssignment_20240614/function_01.java b/01_Intellij_Java_universal_20240419/untitled/src/javaAssignment_20240614/function_01.java new file mode 100644 index 0000000..827d1ef --- /dev/null +++ b/01_Intellij_Java_universal_20240419/untitled/src/javaAssignment_20240614/function_01.java @@ -0,0 +1,62 @@ +/* + * Function: Java 课程实验 六 - 题目 01 + * Date: 2024 06 14 + * Code by: JRNitre + * */ + +package javaAssignment_20240614; + +import javax.swing.*; +import java.awt.*; +import java.awt.event.ActionEvent; +import java.awt.event.ActionListener; + +public class function_01 extends Frame implements ActionListener{ + + Label userLabel, passLabel; + TextField userField; + JPasswordField passField; + Button loginButton; + + public function_01() { + // 设置窗口属性 + setTitle("User Login"); + setSize(300, 200); + // setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); + setLayout(new FlowLayout()); + + // 添加组件 + userLabel = new Label("User Id:"); + add(userLabel); + userField = new TextField(15); + add(userField); + + passLabel = new Label("Password:"); + add(passLabel); + passField = new JPasswordField(15); + add(passField); + + loginButton = new Button("Login"); + loginButton.addActionListener(this); + add(loginButton); + + setVisible(true); + } + + public void actionPerformed(ActionEvent e) { + if (e.getSource() == loginButton) { + String username = userField.getText(); + String password = new String(passField.getPassword()); + if (isValidUser(username, password)) { + dispose(); // 关闭当前窗口 + JOptionPane.showMessageDialog(null, "Login Done!"); + } else { + JOptionPane.showMessageDialog(null, "Error!"); + } + } + } + + private boolean isValidUser(String username, String password) { + return "user".equals(username) && "pass".equals(password); + } +} diff --git a/01_Intellij_Java_universal_20240419/untitled/src/javaAssignment_20240614/function_02.java b/01_Intellij_Java_universal_20240419/untitled/src/javaAssignment_20240614/function_02.java new file mode 100644 index 0000000..c10840a --- /dev/null +++ b/01_Intellij_Java_universal_20240419/untitled/src/javaAssignment_20240614/function_02.java @@ -0,0 +1,96 @@ +/* + * Function: Java 课程实验 六 - 题目 02 + * Date: 2024 06 14 + * Code by: JRNitre + * */ + +package javaAssignment_20240614; + +import java.awt.*; +import java.awt.event.ActionEvent; +import java.awt.event.ActionListener; +import javax.swing.*; + +public class function_02 extends JFrame { + JLabel num1Label, num2Label, resultLabel; + JTextField num1Field, num2Field, resultField; + JComboBox operationComboBox; + JButton calculateButton; + + public function_02() { + super("计算器"); + + // 初始化组件 + num1Label = new JLabel("数字1:"); + num2Label = new JLabel("数字2:"); + resultLabel = new JLabel("结果:"); + num1Field = new JTextField(10); + num2Field = new JTextField(10); + resultField = new JTextField(10); + resultField.setEditable(false); // 结果字段不可编辑 + operationComboBox = new JComboBox<>(new String[]{"+", "-", "*", "/"}); + calculateButton = new JButton("计算"); + + // 添加动作监听器 + calculateButton.addActionListener(new ActionListener() { + @Override + public void actionPerformed(ActionEvent e) { + calculate(); + } + }); + + // 设置布局 + setLayout(new GridLayout(4, 2)); + + // 添加组件到窗口 + add(num1Label); + add(num1Field); + add(num2Label); + add(num2Field); + add(new JLabel()); // 空白占位 + add(operationComboBox); + add(resultLabel); + add(resultField); + add(new JLabel()); // 空白占位 + add(calculateButton); + + // 设置窗口属性 + setSize(300, 150); + setDefaultCloseOperation(EXIT_ON_CLOSE); + setLocationRelativeTo(null); // 居中显示 + setVisible(true); + } + + private void calculate() { + try { + double num1 = Double.parseDouble(num1Field.getText()); + double num2 = Double.parseDouble(num2Field.getText()); + String operation = (String) operationComboBox.getSelectedItem(); + double result = 0; + + switch (operation) { + case "+": + result = num1 + num2; + break; + case "-": + result = num1 - num2; + break; + case "*": + result = num1 * num2; + break; + case "/": + if (num2 != 0) + result = num1 / num2; + else { + JOptionPane.showMessageDialog(this, "除数不能为0!"); + return; + } + break; + } + + resultField.setText(String.valueOf(result)); + } catch (NumberFormatException ex) { + JOptionPane.showMessageDialog(this, "请输入有效的数字!"); + } + } +} diff --git a/01_Intellij_Java_universal_20240419/untitled/src/javaAssignment_20240614/function_03.java b/01_Intellij_Java_universal_20240419/untitled/src/javaAssignment_20240614/function_03.java new file mode 100644 index 0000000..fad2d14 --- /dev/null +++ b/01_Intellij_Java_universal_20240419/untitled/src/javaAssignment_20240614/function_03.java @@ -0,0 +1,62 @@ +/* + * Function: Java 课程实验 六 - 题目 03 + * Date: 2024 06 14 + * Code by: JRNitre + * */ + +package javaAssignment_20240614; + +import javax.swing.*; +import java.awt.*; +import java.awt.event.ItemEvent; +import java.awt.event.ItemListener; + +public class function_03 { + + public function_03(){ + SwingUtilities.invokeLater(() -> { + createAndShowGUI(); + }); + } + + private static void createAndShowGUI() { + JFrame frame = new JFrame("选项事件处理"); + frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); + frame.setLayout(new FlowLayout()); + + JTextArea textArea = new JTextArea("选顶事件ItemEvent的使用方法", 6, 20); + textArea.setEditable(false); + frame.add(textArea); + + JRadioButton redButton = new JRadioButton("红色"); + JRadioButton blueButton = new JRadioButton("蓝色"); + + ButtonGroup group = new ButtonGroup(); + group.add(redButton); + group.add(blueButton); + + ItemListener itemListener = new ItemListener() { + @Override + public void itemStateChanged(ItemEvent e) { + if (e.getStateChange() == ItemEvent.SELECTED) { + Object source = e.getSource(); + + if (source == redButton) { + textArea.setForeground(Color.RED); + } else if (source == blueButton) { + textArea.setForeground(Color.BLUE); + } + } + } + }; + + redButton.addItemListener(itemListener); + blueButton.addItemListener(itemListener); + + frame.add(redButton); + frame.add(blueButton); + + frame.pack(); + frame.setVisible(true); + } +} diff --git a/01_Intellij_Java_universal_20240419/untitled/src/javaAssignment_20240614/test.java b/01_Intellij_Java_universal_20240419/untitled/src/javaAssignment_20240614/test.java new file mode 100644 index 0000000..e612c03 --- /dev/null +++ b/01_Intellij_Java_universal_20240419/untitled/src/javaAssignment_20240614/test.java @@ -0,0 +1,49 @@ +/* + * Function: Java 课程实验 六 + * Date: 2024 06 14 + * Code by: JRNitre + * */ + +package javaAssignment_20240614; + +public class test { + public static void main (String[] args){ + + /* + * 设计实现一个用户登录页面，当单击登录按钮用户名密码正确跳转到计算页面。 + * + * Class: function_01.java + * + + function_01 f_1 = new function_01(); + + */ + + /* ( つ•̀ω•́)つ :-D */ + + /* + * 设计实现一个计算页面，实现两个数的加法、减法、乘法和除法运算。 + * + * Class: function_02.java + * + + function_02 f_2 = new function_02(); + + */ + + /* ( つ•̀ω•́)つ :-D */ + + /* + * 编写一个应用程序，标题为“选项事件处理”的窗口，窗口布局为FlowLayout。 + * 设计两个单选按钮，一个文本区。 + * 单击单选按钮时，将文本区中的文字设置成为相应颜色的字体。 + * + * Class: function_03.java + * + + function_03 f_3 = new function_03(); + + */ + + } +} diff --git a/01_Intellij_Java_universal_20240419/untitled/src/javaPackage_20240524/function.java b/01_Intellij_Java_universal_20240419/untitled/src/javaPackage_20240524/function.java index 402715f..ff7659f 100644 --- a/01_Intellij_Java_universal_20240419/untitled/src/javaPackage_20240524/function.java +++ b/01_Intellij_Java_universal_20240419/untitled/src/javaPackage_20240524/function.java @@ -1,10 +1,14 @@ package javaPackage_20240524; +import java.io.*; import java.security.SecureRandom; public class function { + // 数组长度 private int ArrayMaxLength; + private String fileName; + public int[] createRandomArray(int num, int min, int max){ this.ArrayMaxLength = num; int[] array = new int[this.ArrayMaxLength]; @@ -12,7 +16,76 @@ public class function { for (int i = 0; i < this.ArrayMaxLength; i++){ array[i] = min + secureRandom.nextInt(max - min + 1); } + System.out.println("Create Random Array Done!"); return array; } + public void createFile (String fileName){ + this.fileName = fileName; + File file = new File(fileName); + try { + if (file.createNewFile()){ + System.out.println("Create file Done!"); + } else { + System.out.println("Create file Error!"); + } + } catch (IOException ioe){ + System.out.println("Create file Error!"); + ioe.printStackTrace(); + } + } + + public void writeFile (String data){ + try { + BufferedWriter writer = new BufferedWriter(new FileWriter(this.fileName)); + writer.write(data); + writer.close(); + System.out.println("Writer Done!"); + } catch (IOException ioe){ + System.out.println("Writer Error!"); + } + } + + public int[] readeFileToInt(){ + try { + BufferedReader reader = new BufferedReader(new FileReader(this.fileName)); + String line = reader.readLine(); + + String[] arrayStr = line.split("-"); + + int[] arrayInt = new int[this.ArrayMaxLength]; + for (int i = 0; i < this.ArrayMaxLength; i++){ + arrayInt[i] = Integer.parseInt(arrayStr[i]); + } + System.out.println("Reader File Done!"); + return arrayInt; + } catch (IOException ioe){ + System.out.println("Reader File Error!"); + return new int[0]; + } + } + + public void bubbleSort(int[] array){ + int m = array.length; + + for (int i = 0; i < m; i++){ + for (int j = 0; j < m - i - 1; i++){ + if (array[j] > array[j+1]){ + int temp = array[j]; + array[j] = array[j + 1]; + array[j + 1] = temp; + } + } + } + + System.out.println("Sort Done!"); + + for (int k = 0; k < m; k++){ + System.out.print(array[k]); + if (k != m - 1){ + System.out.print(" - "); + } + } + } + } diff --git a/01_Intellij_Java_universal_20240419/untitled/src/javaPackage_20240524/test.java b/01_Intellij_Java_universal_20240419/untitled/src/javaPackage_20240524/test.java index 776aa33..a965183 100644 --- a/01_Intellij_Java_universal_20240419/untitled/src/javaPackage_20240524/test.java +++ b/01_Intellij_Java_universal_20240419/untitled/src/javaPackage_20240524/test.java @@ -7,8 +7,21 @@ public class test { * 2. 利用 BufferedWriter 类将其写入文件 file2.txt 中 * 3. 读取该文件中的数据并升序排序 */ - function f_1 = new function(); + function f_1 = new function(); - f_1.createRandomArray(15, 20, 9999); + int array[] = f_1.createRandomArray(15, 20, 9999); + + f_1.createFile("file2.txt"); + StringBuilder s_1 = new StringBuilder(); + for (int i = 0; i < array.length; i++){ + s_1.append(array[i]); + if (i != array.length - 1){ + s_1.append("-"); + } + } + + f_1.writeFile(s_1.toString()); + + f_1.bubbleSort(f_1.readeFileToInt()); } } diff --git a/01_Intellij_Java_universal_20240419/untitled/src/javaPackage_20240531/bank.java b/01_Intellij_Java_universal_20240419/untitled/src/javaPackage_20240531/bank.java new file mode 100644 index 0000000..bf2d123 --- /dev/null +++ b/01_Intellij_Java_universal_20240419/untitled/src/javaPackage_20240531/bank.java @@ -0,0 +1,19 @@ +package javaPackage_20240531; + +public class bank { + private static int money; + + private String bankNmae; + + public bank (String name){ + this.bankNmae = name; + } + + public int getMoney(){ + return money; + } + + public static synchronized void add (int n){ + money += n; + } +} diff --git a/01_Intellij_Java_universal_20240419/untitled/src/javaPackage_20240531/customer.java b/01_Intellij_Java_universal_20240419/untitled/src/javaPackage_20240531/customer.java new file mode 100644 index 0000000..993cec3 --- /dev/null +++ b/01_Intellij_Java_universal_20240419/untitled/src/javaPackage_20240531/customer.java @@ -0,0 +1,19 @@ +package javaPackage_20240531; + +public class customer implements Runnable{ + + private static final int num = 3; + + @Override + public void run(){ + for (int i = 0; i < num; i++){ + System.out.println("User: " + Thread.currentThread().getName() + " add 100"); + customerAdd(100); + } + } + + public synchronized void customerAdd(int n){ + bank.add(n); + } + +} diff --git a/01_Intellij_Java_universal_20240419/untitled/src/javaPackage_20240531/test.java b/01_Intellij_Java_universal_20240419/untitled/src/javaPackage_20240531/test.java new file mode 100644 index 0000000..85a796d --- /dev/null +++ b/01_Intellij_Java_universal_20240419/untitled/src/javaPackage_20240531/test.java @@ -0,0 +1,28 @@ +package javaPackage_20240531; + +public class test { + public static void main (String[] args){ + /* + * 1. 设某家银行可接受用户的存款，每进行一次存款，便可计算出存款的总额。 + * 2. 现有两名顾客，每人分3次、每次存入100元。 + */ + + bank b = new bank("Bank"); + customer c = new customer(); + + Thread t_1 = new Thread(c, "todd"); + Thread t_2 = new Thread(c, "Copy todd"); + + System.out.println("Now Bank: " + b.getMoney()); + + t_1.start(); + t_2.start(); + + try { + t_1.join(); + t_2.join(); + } catch (Exception e){} + + System.out.println("Now Bank: " + b.getMoney()); + } +} diff --git a/02_Intellij_Java_CourseExperiment_20240611/CourseExperiment/.idea/.gitignore b/02_Intellij_Java_CourseExperiment_20240611/CourseExperiment/.idea/.gitignore new file mode 100644 index 0000000..359bb53 --- /dev/null +++ b/02_Intellij_Java_CourseExperiment_20240611/CourseExperiment/.idea/.gitignore @@ -0,0 +1,3 @@ +# 默认忽略的文件 +/shelf/ +/workspace.xml diff --git a/02_Intellij_Java_CourseExperiment_20240611/CourseExperiment/.idea/encodings.xml b/02_Intellij_Java_CourseExperiment_20240611/CourseExperiment/.idea/encodings.xml new file mode 100644 index 0000000..d114ec5 --- /dev/null +++ b/02_Intellij_Java_CourseExperiment_20240611/CourseExperiment/.idea/encodings.xml @@ -0,0 +1,10 @@ + + + + + + + + + + \ No newline at end of file diff --git a/02_Intellij_Java_CourseExperiment_20240611/CourseExperiment/.idea/misc.xml b/02_Intellij_Java_CourseExperiment_20240611/CourseExperiment/.idea/misc.xml new file mode 100644 index 0000000..07115cd --- /dev/null +++ b/02_Intellij_Java_CourseExperiment_20240611/CourseExperiment/.idea/misc.xml @@ -0,0 +1,6 @@ + + + + + + \ No newline at end of file diff --git a/02_Intellij_Java_CourseExperiment_20240611/CourseExperiment/.idea/modules.xml b/02_Intellij_Java_CourseExperiment_20240611/CourseExperiment/.idea/modules.xml new file mode 100644 index 0000000..432e247 --- /dev/null +++ b/02_Intellij_Java_CourseExperiment_20240611/CourseExperiment/.idea/modules.xml @@ -0,0 +1,8 @@ + + + + + + + + \ No newline at end of file diff --git a/02_Intellij_Java_CourseExperiment_20240611/CourseExperiment/.idea/uiDesigner.xml b/02_Intellij_Java_CourseExperiment_20240611/CourseExperiment/.idea/uiDesigner.xml new file mode 100644 index 0000000..2b63946 --- /dev/null +++ b/02_Intellij_Java_CourseExperiment_20240611/CourseExperiment/.idea/uiDesigner.xml @@ -0,0 +1,124 @@ + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + \ No newline at end of file diff --git a/02_Intellij_Java_CourseExperiment_20240611/CourseExperiment/.idea/vcs.xml b/02_Intellij_Java_CourseExperiment_20240611/CourseExperiment/.idea/vcs.xml new file mode 100644 index 0000000..b2bdec2 --- /dev/null +++ b/02_Intellij_Java_CourseExperiment_20240611/CourseExperiment/.idea/vcs.xml @@ -0,0 +1,6 @@ + + + + + + \ No newline at end of file diff --git a/02_Intellij_Java_CourseExperiment_20240611/CourseExperiment/CourseExperiment.iml b/02_Intellij_Java_CourseExperiment_20240611/CourseExperiment/CourseExperiment.iml new file mode 100644 index 0000000..b2f27ce --- /dev/null +++ b/02_Intellij_Java_CourseExperiment_20240611/CourseExperiment/CourseExperiment.iml @@ -0,0 +1,12 @@ + + + + + + + + + + + + \ No newline at end of file diff --git a/02_Intellij_Java_CourseExperiment_20240611/CourseExperiment/lib/mysql-connector-j-8.4.0.jar b/02_Intellij_Java_CourseExperiment_20240611/CourseExperiment/lib/mysql-connector-j-8.4.0.jar new file mode 100644 index 0000000..8294fe0 Binary files /dev/null and b/02_Intellij_Java_CourseExperiment_20240611/CourseExperiment/lib/mysql-connector-j-8.4.0.jar differ diff --git a/02_Intellij_Java_CourseExperiment_20240611/CourseExperiment/src/ElmAdminEntry.java b/02_Intellij_Java_CourseExperiment_20240611/CourseExperiment/src/ElmAdminEntry.java new file mode 100644 index 0000000..812ae0a --- /dev/null +++ b/02_Intellij_Java_CourseExperiment_20240611/CourseExperiment/src/ElmAdminEntry.java @@ -0,0 +1,118 @@ + +import View.AdminView; +import View.Display; +import po.Admin; + +import java.io.IOException; +import java.util.Scanner; +import java.util.stream.StreamSupport; + +public class ElmAdminEntry { + public static void main(String[] args){ + new ElmAdminEntry().work(); + } + + public void work(){ + + Integer mistake = 0; + Integer maxMistake = 3; + Integer errorCode = 0; + Integer mainExitCode = 0; + + Scanner sca = new Scanner(System.in); + AdminView adminView = new AdminView(); + Display dis = new Display('+', '-', 30); + + while (mistake < maxMistake && mainExitCode == 0){ + dis.titleLine("¼ ǫ̂ϵͳ", true); + if (mistake != 0){ + System.out.println("+ ǰ: " + mistake + " ʣ: " + (maxMistake - mistake)); + } + System.out.print("+ ˻: "); + String userInputAdminName = sca.next(); + System.out.print("+ : "); + String userInputAdminPassworld = sca.next(); + + Admin admin = adminView.login(userInputAdminName, userInputAdminPassworld); + + if (admin != null){ + int key = -1; + while (key != 10){ + + dis.titleLine("Admin - " + admin.getAdminName(), true); + dis.showItem("[0] ̼б", true); + dis.showItem("[1] ̼", true); + dis.showItem("[2] ½̼", true); + dis.showItem("[3] ɾ̼", true); + dis.showItem("[4] 鿴ԱϢ", true); + dis.showItem("[5] ùԱ", true); + dis.showItem("[10] ˳ϵͳ", true); + dis.showLine(true); + + System.out.print("+ ӦIJ: "); + key = sca.nextInt(); + + switch (key){ + case 0: + break; + case 1: + case 2: + case 3: + case 4: + // TODO nextLine + dis.titleLine("ԱϢ", true); + System.out.println("+ Ա ID:\t" + admin.getAdminId()); + System.out.println("+ Ա:\t" + admin.getAdminName()); + System.out.println("+ Ա:\t" + admin.getAdminPassword()); + sca.nextLine(); + break; + case 5: + dis.titleLine("ùԱ", true); + System.out.print("+ 뵱ǰ: "); + String newPassword = sca.next(); + + if (!(newPassword.equals(admin.getAdminPassword()))){ + dis.titleLine("ERROR", true); + System.out.println("벻һ!"); + break; + } + + // TODO У + System.out.println("+ : "); + newPassword = sca.next(); + + admin.setAdminPassword(newPassword); + adminView.updatePassword(admin); + break; + + case 10: + errorCode = 2; + mainExitCode = 1; + break; + default: + dis.titleLine("ERROR", true); + System.out.println("+ Ϸ!"); + break; + } + } + } else { + mistake++; + } + if (mistake >= maxMistake){ + errorCode = 1; + } + } + + if (errorCode == 1){ + dis.titleLine("ERROR", true); + System.out.println("+ ࣬˳ϵͳ!"); + System.exit(0); + } + if (errorCode == 2){ + dis.titleLine("ʾ", true); + System.out.println("+ ϵͳ˳"); + System.exit(0); + } + + } +} diff --git a/02_Intellij_Java_CourseExperiment_20240611/CourseExperiment/src/View/AdminView.java b/02_Intellij_Java_CourseExperiment_20240611/CourseExperiment/src/View/AdminView.java new file mode 100644 index 0000000..9eb60b0 --- /dev/null +++ b/02_Intellij_Java_CourseExperiment_20240611/CourseExperiment/src/View/AdminView.java @@ -0,0 +1,22 @@ +package View; + +import dao.AdminDaoImpl; +import po.Admin; + +import java.util.Scanner; + +public class AdminView { + public Admin login(String name, String passworld){ + Admin admin = null; + + admin = new AdminDaoImpl().getAdminByNameByPass(name, passworld); + + return admin; + } + + public void updatePassword(Admin admin){ + System.out.println("+ ..."); + + new AdminDaoImpl().updateAdminPassword(admin); + } +} diff --git a/02_Intellij_Java_CourseExperiment_20240611/CourseExperiment/src/View/Display.java b/02_Intellij_Java_CourseExperiment_20240611/CourseExperiment/src/View/Display.java new file mode 100644 index 0000000..b044d4d --- /dev/null +++ b/02_Intellij_Java_CourseExperiment_20240611/CourseExperiment/src/View/Display.java @@ -0,0 +1,70 @@ +package View; + +public class Display { + + private char displayNode; + private char displayLine; + + private Integer displayWidth; + + public Display (char node, char line, Integer width){ + displayNode = node; + displayLine = line; + displayWidth = width; + } + + public void setWidth(Integer width){ + displayWidth = width; + } + + public void titleLine (String title, boolean newLine){ + StringBuilder str = new StringBuilder(); + + Integer space = (displayWidth - title.length() - 2) / 2; + + str.append(displayNode); + for (int i = 0; i < space; i++){ + str.append(displayLine); + } + str.append(title); + for (int i = 0; i < space; i++){ + str.append(displayLine); + } + str.append(displayNode); + + System.out.print(str.toString()); + if (newLine){ + System.out.println(); + } + } + + public void showItem(String item, boolean newLine){ + StringBuilder str = new StringBuilder(); + + str.append(displayNode).append(" "); + str.append(item); + + Integer space = displayWidth - 1 - ("+ ".length() + item.length()); + + System.out.print(str.toString()); + if (newLine){ + System.out.println(); + } + } + + public void showLine(boolean newLine){ + StringBuilder str = new StringBuilder(); + + str.append(displayNode); + for (int i = 0; i < displayWidth - 2; i++){ + str.append(displayLine); + } + str.append(displayNode); + + System.out.print(str.toString()); + if (newLine){ + System.out.println(); + } + } + +} diff --git a/02_Intellij_Java_CourseExperiment_20240611/CourseExperiment/src/dao/AdminDao.java b/02_Intellij_Java_CourseExperiment_20240611/CourseExperiment/src/dao/AdminDao.java new file mode 100644 index 0000000..51fde0c --- /dev/null +++ b/02_Intellij_Java_CourseExperiment_20240611/CourseExperiment/src/dao/AdminDao.java @@ -0,0 +1,9 @@ +package dao; + +import po.Admin; + +public interface AdminDao { + Admin getAdminByNameByPass(String adminName, String password); + + void updateAdminPassword(Admin admin); +} diff --git a/02_Intellij_Java_CourseExperiment_20240611/CourseExperiment/src/dao/AdminDaoImpl.java b/02_Intellij_Java_CourseExperiment_20240611/CourseExperiment/src/dao/AdminDaoImpl.java new file mode 100644 index 0000000..01eb623 --- /dev/null +++ b/02_Intellij_Java_CourseExperiment_20240611/CourseExperiment/src/dao/AdminDaoImpl.java @@ -0,0 +1,76 @@ +package dao; + +import jdbc.JDBC; +import po.Admin; + +import java.sql.*; + +public class AdminDaoImpl implements AdminDao{ +// @Override +// public Admin getAdminByNameByPass(String adminName, String password){ +// Map map = AdminMap.ADMIN_MAP;//ȡйԱ +// Collection values = map.values();//ȡmapֵļ +// +// //ֵļϣжǷƺƥ䣬Уʾ¼ɹ +// Admin admin = null; +// for(Admin tmp : values ) { +// if(tmp.getAdminName().equals(adminName) && tmp.getAdminPassworld().equals(password)) { +// admin = tmp; +// break; +// } +// } +// +// return admin; +// } + + @Override + public Admin getAdminByNameByPass(String adminName, String password) { + Admin admin = null; + try { + // ݿ + Connection conn = JDBC.getConnection(); + Statement stmt = conn.createStatement(); + + String sql = "SELECT * FROM admin WHERE adminName = '" + adminName + "' AND adminPassword = '" + password + "'"; + + ResultSet rs = stmt.executeQuery(sql); + + if (rs.next()) { + admin = new Admin(); + admin.setAdminId(rs.getInt("adminId")); + admin.setAdminName(rs.getString("adminName")); + admin.setAdminPassword(rs.getString("adminPassword")); + } + + conn.close(); + stmt.close(); + rs.close(); + } catch (SQLException e) { + System.err.println("Database error occurred: " + e.getMessage()); + } catch (Exception e) { + System.err.println("Unexpected error: " + e.getMessage()); + } + return admin; + } + + @Override + public void updateAdminPassword(Admin admin) { + // TODO ¹ + try { + Connection conn = JDBC.getConnection(); + Statement stmt = conn.createStatement(); + System.out.println("+ ӵݿ"); + + String sql = "UPDATE admin SET adminPassword = ?"; + PreparedStatement pst = conn.prepareStatement(sql); + pst.setString(1, admin.getAdminPassword()); + pst.executeUpdate(); + System.out.println("+ "); + + stmt.close(); + conn.close(); + } catch (Exception e) { + System.err.println("Unexpected error: " + e.getMessage()); + } + } +} diff --git a/02_Intellij_Java_CourseExperiment_20240611/CourseExperiment/src/data/AdminMap.java b/02_Intellij_Java_CourseExperiment_20240611/CourseExperiment/src/data/AdminMap.java new file mode 100644 index 0000000..9b77e0a --- /dev/null +++ b/02_Intellij_Java_CourseExperiment_20240611/CourseExperiment/src/data/AdminMap.java @@ -0,0 +1,15 @@ +package data; + +import java.util.HashMap; +import java.util.Map; + +import po.Admin; + +public class AdminMap { + public static final Map ADMIN_MAP = new HashMap<>(); + + static { + ADMIN_MAP.put(1, new Admin(1, "jrnitre", "123")); + } + +} diff --git a/02_Intellij_Java_CourseExperiment_20240611/CourseExperiment/src/jdbc/JDBC.java b/02_Intellij_Java_CourseExperiment_20240611/CourseExperiment/src/jdbc/JDBC.java new file mode 100644 index 0000000..001d6e0 --- /dev/null +++ b/02_Intellij_Java_CourseExperiment_20240611/CourseExperiment/src/jdbc/JDBC.java @@ -0,0 +1,23 @@ +package jdbc; + +import po.Admin; + +import java.beans.Expression; +import java.sql.*; + +public class JDBC { + + private static final String URL = "jdbc:mysql://124.220.110.170:3306/jrnitre"; + private static final String user = "jrnitre"; + private static final String Password = "npgt1365"; + + public static Connection getConnection() { + try { + Class.forName("com.mysql.cj.jdbc.Driver"); + return DriverManager.getConnection(URL, user, Password); + } catch (ClassNotFoundException | SQLException e) { + e.printStackTrace(); + throw new RuntimeException("ݿʧ", e); + } + } +} diff --git a/02_Intellij_Java_CourseExperiment_20240611/CourseExperiment/src/po/Admin.java b/02_Intellij_Java_CourseExperiment_20240611/CourseExperiment/src/po/Admin.java new file mode 100644 index 0000000..d3529ea --- /dev/null +++ b/02_Intellij_Java_CourseExperiment_20240611/CourseExperiment/src/po/Admin.java @@ -0,0 +1,45 @@ +package po; + +public class Admin { + // 管理员 ID + private Integer adminId; + // 管理员名 + private String adminName; + // 管理员密码 + private String adminPassword; + + public Admin (Integer id, String name, String passworld){ + super(); + adminId = id; + adminName = name; + adminPassword = passworld; + } + + public Admin (){ + super(); + } + + public Integer getAdminId(){ + return adminId; + } + + public String getAdminName(){ + return adminName; + } + + public String getAdminPassword(){ + return adminPassword; + } + + public void setAdminId(Integer id){ + adminId = id; + } + + public void setAdminName(String name){ + adminName = name; + } + + public void setAdminPassword(String password){ + adminPassword = password; + } +} diff --git a/02_Intellij_Java_CourseExperiment_20240611/CourseExperiment/src/po/Business.java b/02_Intellij_Java_CourseExperiment_20240611/CourseExperiment/src/po/Business.java new file mode 100644 index 0000000..5a78bfd --- /dev/null +++ b/02_Intellij_Java_CourseExperiment_20240611/CourseExperiment/src/po/Business.java @@ -0,0 +1,4 @@ +package po; + +public class Business { +}