Question

我正在使用Spring RestTemplate编写客户端REST GET调用。我需要将http标头传递给GET调用。

请找到代码段：

String url = "http://<hostname>:7001/api?id=231";
ResponseEntity<ResponseObject> getEntity = this.restTemplate.getForEntity(url, ResponseObject.class);
return getEntity .getBody();

org.springframework.http.HttpHeaders headers = new org.springframework.http.HttpHeaders();
headers.set("Accept", "application/xml");
headers.set("username", "ABC");

我需要在此REST get调用中传递诸如Accept和username这样的标头。同样需要哪些代码更改，以便我可以在RestTemplate中传递标头。

Answer 1

将您的代码用作：

org.springframework.http.HttpHeaders headers = new 
org.springframework.http.HttpHeaders();
headers.set("Accept", "application/xml");
headers.set("username", "ABC");

String url = "http://<hostname>:7001/api?id=231";
ResponseEntity<ResponseObject> getEntity = 
this.restTemplate.exchange(url,HttpMethod.GET,new HttpEntity<>( headers),ResponseObject.class);
return getEntity .getBody();

Answer 2

getForEntity不支持设置标题。请改用exchange：

HttpHeaders headers = new HttpHeaders();
headers.set("Accept", "application/xml");
headers.set("username", "ABC");

HttpEntity entity = new HttpEntity(headers);

ResponseEntity<ResponseObject> response = restTemplate.exchange(
    url, HttpMethod.GET, entity,ResponseObject.class);

Answer 3

通用休息模板执行器方法：

public <T, E extends TIBCOResponse> E executeRequest(HttpMethod method, 
        HttpHeaders httpHeaders, 
        String url,
        T requestBody,
        Map<String, String> paramters, 
        Class<E> clazz) {

    HttpEntity<T> entity = new HttpEntity<>(requestBody, httpHeaders);

    RestTemplate restTemplate = new RestTemplate();

    ResponseEntity<E> response = restTemplate.exchange(url, method, entity, clazz, paramters);

    return response.getBody();
}

服务方法实施：

public ResponseObject FuncCallerInsideRest(IntegrationDTO integrationDTO) {

    String OPERATION_URL = "/FindAccountInfo?accountNumber="+integrationDTO.getAccountNumber();
    Map<String, String> parameters = new HashMap<>();
    httpHeaders = new HttpHeaders();

    httpHeaders.set("RetryLimit", "2");
    httpHeaders.set("Authorization", "abcd");
    httpHeaders.set("SessionID", integrationDTO.getSessionID());

    ResponseObject ResponseObject = this.executeRequest(HttpMethod.GET, httpHeaders,
            BASE_URL.concat(PATH_URL.concat(OPERATION_URL)), null, parameters,
            ResponseObject.class);

    return ResponseObject;
}

如何在Spring RestTemplate中将HTTP标头传递给GET请求

3 个答案: