问题
Hi I am trying to get data from the Rest caller to get data from the API my api end point support the get method with the json body as a request when I use curl it is working my curl command is :
curl -X GET http://ec2-URL.com:5000/TL/data -H 'Content-Type: application/json' -d '{ "meta": "NJ", "name": "US"}'
And My Spring code is this:
public String getData() {
RestTemplate restTemplate = new RestTemplate();
try {
String requestJson = "{ \"meta\": \"NJ\", \"name\": \"US\" }";
HttpHeaders headers = new HttpHeaders();
headers.set("Content-Type", "application/json");
HttpEntity<String> entity = new HttpEntity<>(requestJson, headers);
ResponseEntity<?> lado = restTemplate.exchange("http://ec2-URL.com:5000/TL/data", HttpMethod.GET, entity, Object.class);
} catch (Exception exc) {
logger.error("[WebServiceCallerUtil] Exception while calling . {} ", exc.getMessage());
}
return " ";
}
I am getting bad request everytime am I dong any wrong.. I know its very easy but.. I tried to use Map also like this :
MultiValueMap<String, String> map = new LinkedMultiValueMap<>();
map.add("meta", "NJ");
map.add("name", US);
HttpEntity<?> entity = new HttpEntity<>(map, httpHeaders);
What is my mistake? How to send json body in the get method?
回答1:
Try this,
private static HttpEntity<?> getHeaders(){
HttpHeaders headers = new HttpHeaders();
headers.set("Accept", MediaType.APPLICATION_JSON_VALUE);
return new HttpEntity<>(headers);
}
public String getData() {
RestTemplate restTemplate = new RestTemplate();
try {
String requestJson = "{ \"meta\": \"NJ\", \"name\": \"US\" }";
Object lado = restTemplate.getForObject("http://ec2-URL.com:5000/TL/data?requestJson= {requestJson}", Object.class,requestJson, getHeaders());
} catch (Exception exc) {
logger.error("[WebServiceCallerUtil] Exception while calling . {} ", exc.getMessage());
}
return " ";
}
--
HTTP GET doesn't have request body. So here am explaining how to send the data through reqeustparam in GET method.
来源：https://stackoverflow.com/questions/56544432/how-to-send-body-as-a-json-in-resttemplate-to-get-data-from-api