消息推送系统

// 创建一个新的Spring Boot项目

@SpringBootApplication

public class CommunicationPlatformApplication {

public static void main(String[] args) {

SpringApplication.run(CommunicationPlatformApplication.class, args);

}

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}

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@RestController

public class PPTController {

@PostMapping("/upload")

public String uploadPPT(@RequestParam("file") MultipartFile file) {

try {

// 保存PPT文件到服务器

File convFile = new File(Objects.requireNonNull(file.getOriginalFilename()));

file.transferTo(convFile);

return "文件上传成功";

} catch (IOException e) {

return "文件上传失败";

}

}

@GetMapping("/download/{filename}")

public ResponseEntity downloadPPT(@PathVariable String filename) throws IOException {

Path path = Paths.get("uploads/" + filename);

Resource resource = new UrlResource(path.toUri());

return ResponseEntity.ok()

.header(HttpHeaders.CONTENT_DISPOSITION, "attachment; filename=\"" + resource.getFilename() + "\"")

.body(resource);

}

}

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