如何在 spring 启动 restful 应用程序时响应 pbf 文件？

Question

我有一个类似 this and I want to response it with spring boot 2.2.2.RELEASE resfull 应用程序的 pbf 文件。 Mapbox 响应服务器如下，我想用 spring boot:

来实现它

Mapbox Content-Type 是 application/x-protobuf，我如何在 spring boot restfull 应用程序中做到这一点？

Answer 1

您可以这样下载

@RestController
@RequestMapping("/api")
public class DownloadsController {

    @GetMapping("/getFile")
    public ResponseEntity<Resource> getFile(HttpServletResponse httpServletResponse) throws FileNotFoundException{
        File file = new File("/home/sagara/Downloads/3.vector.pbf");
        HttpHeaders headers = new HttpHeaders();
        String fileName = file.getName();
        headers.add("Content-disposition","attachment; filename="+ fileName);
        Resource resource = new InputStreamResource(new FileInputStream(file));
        return ResponseEntity.ok()
            .headers(headers)
            .contentLength(file.length())
            .contentType(MediaType.parseMediaType("application/x-protobuf"))
            .body(resource);
    }
}