使用Micronaut下载文件

import io.micronaut.http.HttpResponse;
import io.micronaut.http.MediaType;
import io.micronaut.http.annotation.Controller;
import io.micronaut.http.annotation.Get;
import io.micronaut.http.annotation.PathVariable;
import io.micronaut.http.annotation.Produces;

import java.io.File;
import java.io.FileInputStream;
import java.io.IOException;
import java.io.InputStream;

@Controller
public class FileDownloadController {

    @Get("/download/{filename}")
    @Produces(MediaType.APPLICATION_OCTET_STREAM)
    public HttpResponse<?> downloadFile(@PathVariable String filename) {
        String filePath = "/path/to/files/" + filename; // 替换为实际的文件路径
        File file = new File(filePath);

        try {
            InputStream inputStream = new FileInputStream(file);
            return HttpResponse.ok(inputStream);
        } catch (IOException e) {
            return HttpResponse.serverError().body("Failed to download file");
        }
    }
}