How to use Java and Youpai Cloud to build an audio and video on-demand platform

How to use Java and Youpai Cloud to build an audio and video on-demand platform

Abstract: With the rapid development of the Internet, the audio and video on-demand platform has become one of the main ways for people to obtain entertainment, education and information. This article will introduce how to use Java language and Youpai cloud service to build a simple audio and video on-demand platform, and provide corresponding code examples.

1. Introduction to Youpaiyun

Youpaiyun is a leading cloud computing and cloud storage service provider in China, providing safe, stable and efficient cloud services. Through Youpaiyun, we can easily upload, store and manage audio and video files, and support transcoding, watermarking, editing and other functions.

2. Project preparation

Before we start, we need to do some preparation work:

1. Register a Youpaiyun account and create a new space for Store audio and video files.
2. Install the Java development environment and ensure that the Java Development Kit (JDK) and related development tools have been installed on your computer.
3. Download Youpaiyun's Java SDK to simplify interaction with Youpaiyun.

3. Project construction

1. Create a new Java project and import Youpaiyun’s Java SDK.
2. Add Youpaiyun SDK related information in the project configuration file. For example, accessKeyId and accessKeySecret are used for authentication and authorization, and bucketName is used to specify storage space.
3. Write code to implement the function of uploading audio and video files. The following is a sample code:

import com.upyun.RestManager;
import com.upyun.UploadFileInfo;

public class VideoUploader {
    public static void main(String[] args) {
        // 配置又拍云的账号信息
        RestManager manager = new RestManager(accessKeyId, accessKeySecret, bucketName);
        
        // 上传文件
        UploadFileInfo fileInfo = manager.writeFile(filePath, fileContent);
        
        // 输出上传后的文件信息
        System.out.println(fileInfo.getKey());
        System.out.println(fileInfo.getUrl());
    }
}

In the above code, we first create a Youpaiyun service management object through the RestManager class, and then call the writeFile method to upload audio and video files. After the upload is successful, we can obtain the uploaded file key and access URL through the fileInfo object.

4. Use API to manage audio and video files

Youpaiyun provides a series of APIs for managing audio and video files. The following are some commonly used API examples:

1. Get file information:

FileInfo fileInfo = manager.getFileInfo(filePath);
System.out.println(fileInfo.getSize());
System.out.println(fileInfo.getDuration());

2. Transcode files:

ConvertRequest request = new ConvertRequest();
request.setSource(filePath);
request.setFormat("mp4");
request.setNotifyUrl("http://yourcallbackurl.com");
ConvertResponse response = manager.convertFile(request);
System.out.println(response.getStatusCode());

3. Add watermark:

WatermarkRequest request = new WatermarkRequest();
request.setSource(filePath);
request.setText("又拍云");
request.setPosition(WatermarkPosition.TOP_LEFT);
WatermarkResponse response = manager.addWatermark(request);
System.out.println(response.getStatusCode());

5. Front-end display

In order to facilitate users, we also need to display audio and video files on the front-end. This can be achieved using the video tag of HTML5:

<video controls autoplay>
    <source src="http://yourbucket.b0.upaiyun.com/yourfile.mp4" type="video/mp4">
    <source src="http://yourbucket.b0.upaiyun.com/yourfile.webm" type="video/webm">
    Your browser does not support the video tag.
</video>

In the above code, we use the video tag to embed audio and video files, and specify the URL and type of the file through the source tag.

6. Summary

This article introduces how to use Java language and Youpai cloud service to build a simple audio and video on-demand platform. Through Youpaiyun's Java SDK, we can easily upload, manage and display audio and video files, and support transcoding, watermarking and other functions. I hope this article will help you build an audio and video on-demand platform.

Reference link:

1. Youpaiyun official website: https://www.upyun.com/
2. Youpaiyun Java SDK: https:// github.com/upyun/java-sdk

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