用Tomcat配置的java连接mysql写成一个学生信息管理系统

好的，我可以为您提供一些指导。

首先，您需要确保您的Tomcat服务器已经安装并正在运行。接下来，您需要安装MySQL数据库，并在其中创建一个名为“student”的数据库，以存储学生信息。

接下来，您需要使用Java编写代码来连接MySQL数据库，并编写CRUD操作来对学生信息进行管理。

以下是一个简单的示例代码，可以帮助您入门：

import java.sql.*;

public class StudentManagement {
  private Connection conn = null;
  private PreparedStatement pstmt = null;
  private ResultSet rs = null;
  
  public void connect() {
    try {
      Class.forName("com.mysql.jdbc.Driver");
      conn = DriverManager.getConnection("jdbc:mysql://localhost:3306/student", "root", "password"); // 这里需要修改成您自己的MySQL用户名和密码
      System.out.println("Connected to the database!");
    } catch (SQLException e) {
      System.out.println("Failed to connect to the database.");
      e.printStackTrace();
    } catch (ClassNotFoundException e) {
      e.printStackTrace();
    }
  }
  
  public void disconnect() {
    try {
      if (rs != null) {
        rs.close();
      }
      if (pstmt != null) {
        pstmt.close();
      }
      if (conn != null) {
        conn.close();
        System.out.println("Disconnected from the database!");
      }
    } catch (SQLException e) {
      e.printStackTrace();
    }
  }
  
  public void addStudent(String name, int age, String gender) {
    try {
      pstmt = conn.prepareStatement("INSERT INTO students (name, age, gender) VALUES (?, ?, ?)");
      pstmt.setString(1, name);
      pstmt.setInt(2, age);
      pstmt.setString(3, gender);
      pstmt.executeUpdate();
      System.out.println("Student added!");
    } catch (SQLException e) {
      System.out.println("Failed to add student.");
      e.printStackTrace();
    }
  }
  
  public void updateStudent(int id, String name, int age, String gender) {
    try {
      pstmt = conn.prepareStatement("UPDATE students SET name = ?, age = ?, gender = ? WHERE id = ?");
      pstmt.setString(1, name);
      pstmt.setInt(2, age);
      pstmt.setString(3, gender);
      pstmt.setInt(4, id);
      pstmt.executeUpdate();
      System.out.println("Student updated!");
    } catch (SQLException e) {
      System.out.println("Failed to update student.");
      e.printStackTrace();
    }
  }
  
  public void deleteStudent(int id) {
    try {
      pstmt = conn.prepareStatement("DELETE FROM students WHERE id = ?");
      pstmt.setInt(1, id);
      pstmt.executeUpdate();
      System.out.println("Student deleted!");
    } catch (SQLException e) {
      System.out.println("Failed to delete student.");
      e.printStackTrace();
    }
  }
  
  public void showStudents() {
    try {
      pstmt = conn.prepareStatement("SELECT * FROM students");
      rs = pstmt.executeQuery();
      while (rs.next()) {
        int id = rs.getInt("id");
        String name = rs.getString("name");
        int age = rs.getInt("age");
        String gender = rs.getString("gender");
        System.out.println("ID: " + id + ", Name: " + name + ", Age: " + age + ", Gender: " + gender);
      }
    } catch (SQLException e) {
      System.out.println("Failed to show students.");
      e.printStackTrace();
    }
  }
  
  public static void main(String[] args) {
    StudentManagement sm = new StudentManagement();
    sm.connect();
    sm.addStudent("Tom", 18, "male");
    sm.updateStudent(1, "Tommy", 19, "male");
    sm.deleteStudent(1);
    sm.showStudents();
    sm.disconnect();
  }
}

请注意，这只是一个简单的示例代码，您需要根据实际情况进行修改和完善。同时，您还需要在Tomcat服务器中配置Servlet或JSP来处理HTTP请求，并将这些请求转发到相应的Java方法中进行处理。

希望这些信息对您有所帮助！