使用RestTemplate时，无法接收LinkedHashMap中包含字符串的UTF-8格式

RestTemplate restTemplate = new RestTemplate();
HttpHeaders headers = new HttpHeaders();
headers.setAcceptCharset(Collections.singletonList(StandardCharsets.UTF_8));
HttpEntity<String> entity = new HttpEntity<>(headers);
ResponseEntity<LinkedHashMap> response = restTemplate.exchange(url, HttpMethod.GET, entity, LinkedHashMap.class);
LinkedHashMap<String, Object> result = response.getBody();

for (Map.Entry<String, Object> entry : result.entrySet()) {
    String key = entry.getKey();
    Object value = entry.getValue();
    if (value instanceof String) {
        String stringValue = (String) value;
        // 处理字符串值
    }
}