問題描述
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Spring Boot API 定義 GET 請(qǐng)求 API ， 返回視頻流。前端通過
解決方法
Spring Framework 文件請(qǐng)求處理
重慶分公司
重慶分公司
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 層
@RestController
@AllArgsConstructor
public class FileRestController {
private final NonStaticResourceHttpRequestHandler nonStaticResourceHttpRequestHandler;
/**
* 預(yù)覽視頻文件, 支持 byte-range 請(qǐng)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());
}
}
}
相關(guān)資料
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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