添加代码使得这段代码显示在一个窗口中：package csclient; import java.sql.*; public class Test { private static String driver = "com.mysql.cj.jdbc.Driver"; private static String URL = "jdbc:mysql://localhost:3306/student"; private static String user = "root"; private static String password = "z7.h7.m7."; /** * JDBC测试. */ private static void JDBCexample() { // 1.加载数据库驱动 try { Class.forName(driver); } catch (ClassNotFoundException e) { e.printStackTrace(); } testStatement(); } /** * 测试Statement的用法. */ private static void testStatement() { try (// 2.打开数据库连接 Connection conn = DriverManager.getConnection(URL, user, password); // 3.创建语句 Statement stmt = conn.createStatement()) { // 模拟SQL注入 testSqlInjecton(stmt); } catch (SQLException sqle) { System.out.println("SQLException : " + sqle); } } /** * 模拟SQL注入. * * @param stmt Statement对象. * @throws SQLException */ private static void testSqlInjecton(Statement stmt) throws SQLException { String name = "X' or 'Y' = 'Y"; String sql = "select * from stu_info where name = '" + name + "'"; ResultSet rs = stmt.executeQuery(sql); ResultSetPrinter.printResultSet(rs); } public static void main(String[] args) { JDBCexample(); } }

您可以使用Swing框架来创建一个简单的窗口，并将代码显示在其中。以下是示例代码：

import javax.swing.*;
import java.awt.*;

public class CodeWindow extends JFrame {

    public CodeWindow() {
        // 设置窗口标题
        setTitle("Code Display");

        // 创建文本区域，用于显示代码
        JTextArea codeTextArea = new JTextArea(20, 40);
        codeTextArea.setEditable(false);

        // 将代码添加到文本区域
        String code = "package csclient; import java.sql.*;  public class Test {     private static String driver = \"com.mysql.cj.jdbc.Driver\";     private static String URL = \"jdbc:mysql://localhost:3306/student\";     private static String user = \"root\";     private static String password = \"z7.h7.m7.\";      /**      * JDBC测试.      */     private static void JDBCexample() {         // 1.加载数据库驱动         try {              Class.forName(driver);         } catch (ClassNotFoundException e) {             e.printStackTrace();         }         testStatement();     }      /**      * 测试Statement的用法.      */     private static void testStatement() {         try (// 2.打开数据库连接              Connection conn = DriverManager.getConnection(URL, user, password);              // 3.创建语句              Statement stmt = conn.createStatement()) {             // 模拟SQL注入             testSqlInjecton(stmt);          } catch (SQLException sqle) {             System.out.println(\"SQLException : \" + sqle);         }     }      /**      * 模拟SQL注入.      *      * @param stmt Statement对象.      * @throws SQLException      */     private static void testSqlInjecton(Statement stmt) throws SQLException      {     	         String name = \"X' or 'Y' = 'Y\";         String sql = \"select * from stu_info where name = '\" + name + \"'\";         ResultSet rs = stmt.executeQuery(sql);         ResultSetPrinter.printResultSet(rs);     }      public static void main(String[] args) {         JDBCexample();     } }";
        codeTextArea.setText(code);

        // 将文本区域添加到滚动面板中
        JScrollPane scrollPane = new JScrollPane(codeTextArea);

        // 将滚动面板添加到窗口中
        getContentPane().add(scrollPane, BorderLayout.CENTER);

        // 设置窗口大小并居中显示
        setSize(500, 400);
        setLocationRelativeTo(null);

        // 显示窗口
        setVisible(true);
    }

    public static void main(String[] args) {
        new CodeWindow();
    }
}

您可以将以上代码保存为一个名为 `CodeWindow.java` 的文件，并在命令行中运行 `javac CodeWindow.java` 编译它。然后，运行 `java CodeWindow` 以启动窗口并显示代码。