无法使用spring Rest控制器下载静态xml文件

import org.springframework.core.io.ClassPathResource;
import org.springframework.core.io.Resource;
import org.springframework.core.io.ResourceLoader;
import org.springframework.http.HttpHeaders;
import org.springframework.http.MediaType;
import org.springframework.http.ResponseEntity;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;

@RestController
public class XmlController {

    private final ResourceLoader resourceLoader;

    public XmlController(ResourceLoader resourceLoader) {
        this.resourceLoader = resourceLoader;
    }

    @GetMapping("/download")
    public ResponseEntity<Resource> downloadXml() {
        try {
            // 加载静态XML文件
            Resource resource = new ClassPathResource("static/example.xml");

            // 设置响应头信息
            HttpHeaders headers = new HttpHeaders();
            headers.setContentType(MediaType.APPLICATION_XML);
            headers.setContentDispositionFormData("attachment", "example.xml");

            // 返回ResponseEntity对象
            return ResponseEntity.ok()
                    .headers(headers)
                    .body(new InputStreamResource(resource.getInputStream()));
        } catch (Exception e) {
            // 处理异常情况
            return ResponseEntity.notFound().build();
        }
    }
}