我在Spring MVC控制器中有一个简单的REST方法,其签名为:
@RequestMapping(value =“/ person / {personId}”,method = RequestMethod.GET) public @ResponseBody Object getPerson(@PathVariable(“personId”)String personId){
... }
输出类型为Object
,因为此方法返回了几种不同的数据类型。
从Spring MVC应用程序中的测试程序调用时,如下所示:
private static void getPerson() {
logger.info(Rest.class.getName() + ".getPerson() method called.");
RestTemplate restTemplate = new RestTemplate();
Person person = restTemplate.getForObject("http://localhost:8080/Library/rest/person/1", Person.class);
ObjectMapper responseMapper = new ObjectMapper();
...
}
响应为Content type 'null' not supported
,呼叫失败。
有人可以提出建议吗?
当从另一个不使用Spring但发出HTTP GET请求的应用程序中的测试程序调用时,控制器方法被正确调用并起作用。
答案 0 :(得分:-1)
你可以试试这个:
HttpComponentsClientHttpRequestFactory requestFactory = new HttpComponentsClientHttpRequestFactory();
requestFactory.setReadTimeout(VERSION_CHECK_READ_TIMEOUT);
RestTemplate template = new RestTemplate(requestFactory);
Person person = restTemplate.getForObject("http://localhost:8080/Library/rest/person/1", Person.class);
如果以上操作不起作用,您可以尝试使用Entity
方法,例如:
RestTemplate restTemplate = new RestTemplate();
// Prepare acceptable media type
List<MediaType> acceptableMediaTypes = new ArrayList<MediaType>();
acceptableMediaTypes.add(MediaType.APPLICATION_XML); // Set what you need
// Prepare header
HttpHeaders headers = new HttpHeaders();
headers.setAccept(acceptableMediaTypes);
HttpEntity<Person> entity = new HttpEntity<Person>(headers);
// Send the request as GET
try {
ResponseEntity<PersonList> result = restTemplate.exchange("http://localhost:8080/Library/rest/person/1", HttpMethod.GET, entity, PersonList.class);
// Add to model
model.addAttribute("persons", result.getBody().getData());
} catch (Exception e) {
logger.error(e);
}
希望能提供帮助