使用Spring boot下载文件XML

@RestController
public class FileDownloadController {

    @RequestMapping("/download")
    public ResponseEntity<Resource> downloadFile() {
        // 文件下载逻辑
    }
}

@RestController
public class FileDownloadController {

    @RequestMapping("/download")
    public ResponseEntity<Resource> downloadFile() {
        // 读取文件
        File file = new File("path/to/file.xml");
        Resource resource = new FileSystemResource(file);

        // 设置响应头
        HttpHeaders headers = new HttpHeaders();
        headers.add(HttpHeaders.CONTENT_DISPOSITION, "attachment; filename=file.xml");

        // 构建响应
        return ResponseEntity.ok()
                .headers(headers)
                .contentLength(file.length())
                .contentType(MediaType.APPLICATION_XML)
                .body(resource);
    }
}

spring:
  servlet:
    multipart:
      enabled: true
      max-file-size: 10MB
      max-request-size: 10MB