SpringBoot静态视频实时播放的实现代码
问题描述
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Spring Boot API 定义 GET 请求 API , 返回视频流。前端通过
解决方法
Spring Framework 文件请求处理
import org.springframework.core.io.FileSystemResource; import org.springframework.core.io.Resource; import org.springframework.stereotype.Component; import org.springframework.web.servlet.resource.ResourceHttpRequestHandler; import javax.servlet.http.HttpServletRequest; import java.nio.file.Path; @Component public class NonStaticResourceHttpRequestHandler extends ResourceHttpRequestHandler { public final static String ATTR_FILE = "NON-STATIC-FILE"; @Override protected Resource getResource(HttpServletRequest request) { final Path filePath = (Path) request.getAttribute(ATTR_FILE); return new FileSystemResource(filePath); } }
Controller 层
@RestController @AllArgsConstructor public class FileRestController { private final NonStaticResourceHttpRequestHandler nonStaticResourceHttpRequestHandler; /** * 预览视频文件, 支持 byte-range 请求 */ @GetMapping("/video") public void videoPreview(HttpServletRequest request, HttpServletResponse response) throws Exception { String path = request.getParameter("path"); Path filePath = Paths.get(path); if (Files.exists(filePath)) { String mimeType = Files.probeContentType(filePath); if (!StringUtils.isEmpty(mimeType)) { response.setContentType(mimeType); } request.setAttribute(NonStaticResourceHttpRequestHandler.ATTR_FILE, filePath); nonStaticResourceHttpRequestHandler.handleRequest(request, response); } else { response.setStatus(HttpServletResponse.SC_NOT_FOUND); response.setCharacterEncoding(StandardCharsets.UTF_8.toString()); } } }
相关资料
How do I return a video with Spring MVC so that it can be navigated using the html5 tag?
https://stackoverflow.com/questions/3303029/http-range-header
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