java - Spring Boot App 注册 RequestContextListener 失败

Question

我正在创建简单的 REST Controller ，为此我在我的 spring boot 应用程序中添加了 RequestContextListener 的配置

@Configuration
@WebListener
public class DataApiRequestContextListener extends RequestContextListener {

}

在 Controller 中，我尝试为成功的发布请求构建位置 header

@Async("webExecutor")
@PostMapping("/company")
public CompletableFuture<ResponseEntity<Object>> save(@RequestBody Company company) {

    Company savedCompany = companyRepository.save(company);

    URI location = ServletUriComponentsBuilder.fromCurrentRequest().path("/{id}")
            .buildAndExpand(savedCompany.getId()).toUri();

    ResponseEntity<Object> response = ResponseEntity.created(location).build();
    LOGGER.debug("Reponse Status for POST Request is :: " + response.getStatusCodeValue());
    LOGGER.debug("Reponse Data for POST Request is :: " + response.getHeaders().getLocation().toString());
    return CompletableFuture.completedFuture(response);
}

我得到异常

java.lang.IllegalStateException: 没有当前的 ServletRequestAttributes

当我尝试在这一行使用 ServletUriComponentsBuilder 构建位置 URI 时

URI location = ServletUriComponentsBuilder.fromCurrentRequest().path("/{id}")
                    .buildAndExpand(savedCompany.getId()).toUri();

Answer 1

如果使用 @async 则使用 fromRequestUri

@Async("webExecutor")
@PostMapping("/company")
public CompletableFuture<ResponseEntity<Object>> save(HttpServletRequest request, @RequestBody Company company) {

    Company savedCompany = companyRepository.save(company);

    URI location = ServletUriComponentsBuilder.fromRequestUri(request).path("/{id}")
                .buildAndExpand(savedOrganization.getId()).toUri();

    ResponseEntity<Object> response = ResponseEntity.created(location).build();
    LOGGER.debug("Reponse Status for POST Request is :: " + response.getStatusCodeValue());
    LOGGER.debug("Reponse Data for POST Request is :: " + response.getHeaders().getLocation().toString());
    return CompletableFuture.completedFuture(response);
}

或没有 @async 应该可以工作并返回您的位置 uri。

@PostMapping("/company")
public CompletableFuture<ResponseEntity<Object>> save(@RequestBody Company company) {

    Company savedCompany = companyRepository.save(company);

    URI location = ServletUriComponentsBuilder.fromCurrentRequest().path("/{id}")
            .buildAndExpand(savedCompany.getId()).toUri();

    ResponseEntity<Object> response = ResponseEntity.created(location).build();
    LOGGER.debug("Reponse Status for POST Request is :: " + response.getStatusCodeValue());
    LOGGER.debug("Reponse Data for POST Request is :: " + response.getHeaders().getLocation().toString());
    return CompletableFuture.completedFuture(response);
}