For Java developers who want to quickly build online video websites, choosing an excellent open source project as the starting point is crucial. This article selects multiple free and powerful Java video on-demand or live source code projects, aiming to help you efficiently build a finished website with complete functions and stable performance, and provide relevant entrance guidance.

Recommended 1: Ant Media Server (Community Edition)

Ant Media Server is an extremely powerful streaming server that supports ultra-low latency live and video on demand (VOD). Its community version is free and is an excellent choice for professional-level video application development.

1. Core functions : Supports various protocols such as WebRTC, HLS, DASH, etc., and can achieve ultra-low-latency live broadcasts less than 0.5 seconds. It also has built-in complete video on-demand, recording, transcoding and adaptive bit rate streaming functions.

2. Technology stack : The backend is based on Java and has excellent performance. The client supports all-platform SDKs such as Web, iOS, Android, etc., which are convenient and fast integration.

3. Applicable scenarios : Very suitable for scenarios such as online education, video conferencing, game live broadcast, security monitoring, etc. that require high real-time requirements.

4. Entrance information : Search for "Ant Media Server" on GitHub to find its official open source project. The Community Edition can be downloaded and used for free.

Recommendation 2: Smart-dianbo (intelligent on-demand system)

This is a domestically produced open source Java project designed specifically for video on demand business. It provides a relatively complete set of backend management and front-end display functions, suitable for building websites such as course videos and knowledge payment.

1. Complete functions : The system includes basic modules such as user management, video classification, video upload, playback statistics, comment interaction, payment interface (need to be integrated by yourself), and is available out of the box.

2. Easy to deploy : adopts the mainstream front- and back-end separation architecture of Spring Boot Vue, with clear project structure and relatively friendly documents, which is convenient for secondary development and deployment. 3. Technology stack : The backend is Spring Boot Mybatis and the frontend is Vue.js. They are all technologies that Java developers are very familiar with, and the threshold for getting started is low.

4. Entrance information : Search for "Smart-dianbo" or "Smart on demand system" on Gitee or GitHub to find the relevant source code repository.

Recommended three: Red5 Media Server

Red5 is an old and classic open source media server in the Java field. It has been an open source alternative to Flash streaming media (RTMP) since 2005. It is now keeping pace with the times and supports modern protocols such as HLS and WebRTC.

1. Stable and reliable : After years of development and community testing, Red5's core is very stable and can handle high concurrent streaming connections.

2. Highly scalable : provides rich APIs that allow developers to deeply customize server behavior, which can serve as the basic core for building complex streaming applications.

3. Protocol support : The core supports RTMP/RTMPS protocol, which is very suitable for traditional PC live streaming. Through plug-ins and community extensions, HLS and WebRTC can also be well supported, meeting the playback needs of mobile and modern browsers.

4. Entrance information : Visit its official website red5.org or search for "Red5" on GitHub to find the project source code and detailed documents.

Recommendation 4: Built based on JPress

JPress is a Java open source website building system similar to WordPress. Although it is not a specialized video website system itself, its powerful plug-in mechanism and flexibility make it very suitable as the underlying framework of video websites.

1. High flexibility : You can use JPress as the basic content management system, and then integrate the video on demand function through secondary development or searching for video plug-ins. Suitable for scenarios where videos need to be deeply integrated with functions such as blogs and communities.

2. Ecological improvement : With an active community and a continuously enriched template and plug-in market, it is easy to find solutions when encountering problems.

3. Quick start : For engineers who are familiar with Java Web development, custom development based on JPress can greatly shorten the time for building a backend management system in the early stage of the project.

4. Entrance information : Visit the JPress official website or search for "JPress" on Gitee/GitHub to get the source code.

When choosing the appropriate Java video website source code, you need to combine your own business needs, technical strength and expected scale. For fast verification projects, high-integration systems like Smart-dianbo are good choices; if you pursue high-performance live broadcasts and low latency, Ant Media Server or Red5 will have more advantages. Before entering development, be sure to carefully study the official documentation of the project, community activity and latest updates to ensure the availability of the project and future maintainability.

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