响应字符集不正确

Question

我写了一个方法，它应该以 utf-8 字符串类型返回有效的正文，但在发出请求后，我得到了 utf-16 的响应。 postman 中的 content-type 标头是 application/json。 我在stackoverflow上搜索了任何可能的解决方法，但任何解决方案都没有帮助我，包括this topic(. 我怎样才能改变它以获得有效的身体？谢谢！

Headers, that i've got on response:
{Date=[Mon, 13 Apr 2020 19:13:38 GMT], Content-Type=[application/json; charset=utf-16], Server=[Kestrel], Transfer-Encoding=[chunked]}

    @PostMapping("/updateValues")
    public String getUpdateValuesRequest(@RequestParam(value = "secret") String secret,
                                         @RequestHeader HttpHeaders requestHeaders,
                                         @RequestBody String requestBody){
        return getUpdateValuesResponse(secret, requestHeaders, requestBody);
    }

    public String getUpdateValuesResponse(String secret, HttpHeaders requestHeaders, String requestBody) {
        String updateValuesUrl = "http://myservice.com/chunk/updateValues?secret={secret}";
        RestTemplate restTemplate = new RestTemplate();
        restTemplate.getMessageConverters().add(0, new StringHttpMessageConverter(Charset.forName("UTF-8")));
        HttpEntity<String> entity = new HttpEntity<String>(requestBody, requestHeaders);
        ResponseEntity<String> response = restTemplate.exchange(updateValuesUrl, HttpMethod.POST, entity, String.class, secret);
        if (response.getStatusCode() == HttpStatus.OK) {
            logger.info("Request Successful.");
        } else {
            logger.info("Request Failed");
        }
        logger.info(response.getHeaders().toString());
        logger.info(response.getStatusCode().toString());
        logger.info("StatusCodeValue: " + response.getStatusCodeValue());
        logger.info(response.getBody());
        logger.info(response.getClass().toString());
        return response.getBody();
    }

Answer 1

通过为 stringHttpMessageConverter 设置 setWriteAcceptCharset(false) 解决了问题。