How to use MySQL and Java to implement a simple video sharing function

How to use MySQL and Java to implement a simple video sharing function

With the popularity of the Internet and the improvement of bandwidth, video sharing has become the most popular network today One of the forms of media. In this article, we will explore how to use MySQL and Java to implement a simple video sharing function.

1. Database design

First, we need to design a database to store video-related information. We can create a table named "videos" and define the following attributes:

1. id: the unique identifier of the video, using a self-increasing integer data type.
2. title: The title of the video, using string type.
3. description: Description of the video, using string type.
4. url: The URL of the video, using string type.
5. created_at: The creation time of the video, using date and time type.

We can use the following SQL statement to create this table:

CREATE TABLE videos (
id INT AUTO_INCREMENT PRIMARY KEY,
title VARCHAR(255),
description TEXT ,
url VARCHAR(255),
created_at DATETIME
);

2. Java code implementation

Next, we use Java to implement the video sharing function. We first need to connect to the MySQL database, and then implement the following functions:

1. Upload video: Users can upload video files through a form and store video-related information in the database. We can use Java's file upload library to implement this function.

The sample code is as follows:

public void uploadVideo(String title, String description, MultipartFile file) throws IOException {
// Save the video file to the server
String filePath = " path/to/save/videos/" file.getOriginalFilename();
File dest = new File(filePath);
file.transferTo(dest);

// Insert video information into the database
String url = "http://localhost/videos/" file.getOriginalFilename();
String insertSql = "INSERT INTO videos (title, description, url, created_at) VALUES (?, ?, ?, ? )";
try (Connection conn = getConnection();

   PreparedStatement stmt = conn.prepareStatement(insertSql)) {
stmt.setString(1, title);
stmt.setString(2, description);
stmt.setString(3, url);
stmt.setTimestamp(4, new Timestamp(System.currentTimeMillis()));
stmt.executeUpdate();

} catch (SQLException e) {

e.printStackTrace();

}
}

This code First save the uploaded video file to the server, and then insert the video URL and other information into the database.

2. Display video list: Users can browse the uploaded video list in the database. We can query database and display the results on the web page.

The sample code is as follows:

public List

   PreparedStatement stmt = conn.prepareStatement(selectSql);
   ResultSet rs = stmt.executeQuery()) {
while (rs.next()) {
  Video video = new Video();
  video.setId(rs.getInt("id"));
  video.setTitle(rs.getString("title"));
  video.setDescription(rs.getString("description"));
  video.setUrl(rs.getString("url"));
  video.setCreatedAt(rs.getTimestamp("created_at"));
  videoList.add(video);
}

} catch (SQLException e) {

e.printStackTrace();

}
return videoList;
}

This code first queries the video list in the database, saves the results into a List, and then returns it to the caller.

3. Front-end page display

Finally, we need to create a front-end page to display the video list and allow users to upload videos. We can use HTML and CSS to create this page, and use Java Servlet to handle user requests.

The sample code is as follows:

Video Share

<input type="text" name="title" placeholder="标题" required><br>
<textarea name="description" placeholder="描述" required></textarea><br>
<input type="file" name="file" required><br>
<input type="submit" value="上传">

<% for (Video video : videoList) { %>
  <li>
    <h2><%= video.getTitle() %></h2>
    <p><%= video.getDescription() %></p>
    <video src="<%= video.getUrl() %>" controls></video>
  </li>
<% } %>

This code creates a form Allows users to upload videos and uses a

list to display uploaded videos.

Summary

By using MySQL and Java, we can implement a simple video sharing function. In this article, we introduce how to design a database table and use Java code to implement the functions of uploading videos and displaying video lists. I hope this article will help you understand how to use MySQL and Java to implement video sharing functions.

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