[英]Response code is 400 while using HttpURLConnection to POST in java for REST API
[英]400 Error Code while using RestTemplate for a Rest API
我有一个 REST API 要调用,我已经使用 rest 模板编写了客户端。 执行时,我得到 400 状态码。 使用 POSTMAN 时,相同的 REST API 工作正常。 下面是 API 和调用者的代码片段。 如果有人抓到任何东西,请告诉我。
REST API 用于POST方法-
@ApiOperation(value = "Download repository as zip")
@ApiResponses({@ApiResponse(code = 200, message = ""), @ApiResponse(code = 400, message = "")})
@PostMapping(value = "/download", produces = {MediaType.APPLICATION_OCTET_STREAM_VALUE})
public ResponseEntity<StreamingResponseBody> downloadRepository(
@RequestBody @Validated final RepositoriesRequest repositoriesRequest) {
final Situation situation = this.situationsService.getSituationId(repositoriesRequest);
if (isNull(situation)) {
return ResponseEntity.notFound().build();
} else {
final ExtractionRequest extractionRequest = new ExtractionRequest(repositoriesRequest.getType(), situation,
repositoriesRequest.getDatabase());
if (!this.validateRequest(extractionRequest)) {
return ResponseEntity.badRequest().build();
}
final ExtractionResponse response = this.extractService.extractRepository(extractionRequest);
if (null == response) {
return ResponseEntity.notFound().build();
}
final InputStream inputStream = this.extractService.getFileFromS3(response.getRepositoryPath());
if (null == inputStream) {
return ResponseEntity.noContent().build();
}
final StreamingResponseBody bodyWriter = this.bodyWriter(inputStream);
return ResponseEntity.ok()
.header("Content-Type", "application/zip")
.header(CONTENT_DISPOSITION, "attachment; filename=\"repository-" + situation.getId() + ".zip\"")
.body(bodyWriter);
}
}
REST CLIENT 使用 Rest 模板,以身份验证令牌和请求正文作为输入 -
HttpEntity<MultiValueMap<String, Object>> buildLoadRepoRequest(
final SimulationContext context,
final List<String> tablesName,
final String simulationId,
final Integer offset) {
final Token token = this.authenticateOkoye(simulationId, offset);
LOGGER.info("Token Run: {}", token.getAccessToken());
final String database = this.getDatabaseForEnvironment();
final HttpHeaders httpHeaders = new HttpHeaders();
httpHeaders.setContentType(APPLICATION_JSON_UTF8);
httpHeaders.set(AUTHORIZATION, "Bearer " + token.getAccessToken());
final MultiValueMap<String, Object> body = new LinkedMultiValueMap<>();
body.add("database", database);
body.add("monthlyClosingMonth", context.getMonthlyClosingDate());
body.add("repositorySnapshot", context.getRepository());
body.add("situationId", context.getSituationId());
body.add("tableNames", tablesName);
body.add("type", context.getRunType());
return new HttpEntity<>(body, httpHeaders);
}
异常处理程序 -
@Override
@ExceptionHandler(HttpClientErrorException.class)
public void loadRepository(
final SimulationContext context,
final List<String> tablesName,
final String simulationId,
final Integer offset,
final Path repositoryPath) throws IOException {
LOGGER.info("[{}] [{}] repository tablesName: {}", simulationId, offset, tablesName);
this.restTemplate.setRequestFactory(this.getClientHttpRequestFactory());
final ClientHttpResponse response = this.restTemplate.postForObject(
this.repositoriesUrl,
this.buildLoadRepoRequest(context, tablesName, simulationId, offset),
ClientHttpResponse.class);
if (response != null && HttpStatus.OK == response.getStatusCode()) {
LOGGER.info(
"response status on simulation : {} - Context: {} - status: {}",
simulationId,
offset,
response.getStatusCode());
//this.helper.copy(response.getBody(), repositoryPath);
} else if (response != null && HttpStatus.NO_CONTENT != response.getStatusCode()) {
throw new JarvisException(
"Can't retrieve RWA repository on simulation " + simulationId + " Context:" + offset);
}
}
从昨天开始,我们一直在研究这个问题,但仍然没有任何线索。 到目前为止,我们已经尝试过 postForEntity、交换、将标头更改为适当的设置方法,并尝试将参数作为 object 也传递。 他们都没有工作。
在调用 API 时,我强烈感觉 header 级别出现问题。
您是否尝试使用httpHeaders.setContentType(MediaType.APPLICATION_JSON)
或者使用 APPLICATION_JSON_UTF8 值将消耗添加到 @PostMapping 注释
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