如何利用MySQL和Java开发一个简单的在线学习平台

public class UserRegistration {
    private String username;
    private String password;
    private String email;

    public void setUsername(String username) {
        this.username = username;
    }

    public void setPassword(String password) {
        this.password = password;
    }

    public void setEmail(String email) {
        this.email = email;
    }

    public void registerUser() {
        // 将用户信息插入用户表中
    }
}

public class CoursePublish {
    private String title;
    private String description;
    private String coverImage;

    public void setTitle(String title) {
        this.title = title;
    }

    public void setDescription(String description) {
        this.description = description;
    }

    public void setCoverImage(String coverImage) {
        this.coverImage = coverImage;
    }

    public void publishCourse() {
        // 将课程信息插入课程表中
    }
}

public class ChapterPublish {
    private String title;
    private String content;

    public void setTitle(String title) {
        this.title = title;
    }

    public void setContent(String content) {
        this.content = content;
    }

    public void publishChapter() {
        // 将章节信息插入章节表中
    }
}

public class Comment {
    private int courseId;
    private String content;

    public void setCourseId(int courseId) {
        this.courseId = courseId;
    }

    public void setContent(String content) {
        this.content = content;
    }

    public void publishComment() {
        // 将评论信息插入评论表中
    }
}