org.springframework.web.client.HttpClientErrorException$BadRequest：400

Question

我试图在我的 Spring Boot 项目中使用 GET API，但出现上述错误。下面是 API 代码以及我访问此 API 的代码

    @RequestMapping(value = "/apiUrl", method = RequestMethod.GET)
    public void apiMethodName(@RequestParam("restrictProfileDate") 
    @DateTimeFormat(pattern="yyyy-MM-dd HH:mm:ss") LocalDateTime restrictProfileDate) {

HttpHeaders headers = new HttpHeaders();       
LocalDate dateValue= LocalDate.now();
Map<String, Object> params = new HashMap<>();
params.put("restrictProfileDate", dateValue.atStartOfDay());        
ResponseEntity<String> response = restTemplate.exchange(apiEndPoint, HttpMethod.GET, new HttpEntity<>(params, headers), String.class, params);

Answer 1

我不确定您的错误是什么，但如果您记录您的响应和标题，也许您可以看到更多详细信息。出于调试目的，您可以为您的

Errorhandler

设置

RestTemplate

，如下所示：

        RestTemplate restTemplate = new RestTemplate();
        restTemplate.setErrorHandler(new DefaultResponseErrorHandler() {

            @Override
            public void handleError(ClientHttpResponse response) throws IOException {
                System.out.printf("Response Status: %s%n", response.getRawStatusCode());
                System.out.printf("Response Headers: %n%s%n", response.getHeaders());
                System.out.printf("Response Body: %n%s%n", new String(getResponseBody(response)));
                super.handleError(response);
            }
        });

`