java数据库学生信息表

以下是一个简单的学生信息表的Java代码，使用MySQL数据库。

import java.sql.*;

public class StudentInfo {
   static final String JDBC_DRIVER = "com.mysql.jdbc.Driver";  
   static final String DB_URL = "jdbc:mysql://localhost/STUDENT";

   static final String USER = "username";
   static final String PASS = "password";
   
   public static void main(String[] args) {
      Connection conn = null;
      Statement stmt = null;
      try{
         Class.forName("com.mysql.jdbc.Driver");

         System.out.println("Connecting to database...");
         conn = DriverManager.getConnection(DB_URL,USER,PASS);

         System.out.println("Creating statement...");
         stmt = conn.createStatement();
         String sql;
         sql = "SELECT id, name, age, gender, major FROM student_info";
         ResultSet rs = stmt.executeQuery(sql);

         while(rs.next()){
            int id  = rs.getInt("id");
            String name = rs.getString("name");
            int age = rs.getInt("age");
            String gender = rs.getString("gender");
            String major = rs.getString("major");

            System.out.print("ID: " + id);
            System.out.print(", Name: " + name);
            System.out.print(", Age: " + age);
            System.out.print(", Gender: " + gender);
            System.out.println(", Major: " + major);
         }

         rs.close();
         stmt.close();
         conn.close();
      } catch(SQLException se) {
         se.printStackTrace();
      } catch(Exception e) {
         e.printStackTrace();
      } finally {
         try{
            if(stmt!=null)
               stmt.close();
         } catch(SQLException se2) {
         }
         try {
            if(conn!=null)
               conn.close();
         } catch(SQLException se) {
            se.printStackTrace();
         }
      }
      System.out.println("Goodbye!");
   }
}

在此示例中，我们连接到名为“STUDENT”的数据库，并从名为“student_info”的表中检索学生信息。数据从结果集中抓取并打印到控制台。您需要将“username”和“password”替换为您的MySQL数据库的实际用户名和密码，以便此示例正确运行。