如何固定响应时间以在 java 中调用 REST API？

Question

我想通过java编程调用REST API。而且我还想在调用 API 期间给出一个时间限制。如果响应时间超过 10 秒，我想断开连接 API 调用并打印响应时间超过 10 秒的消息。

请通过 java 的示例代码帮助我。

下面是调用API的源代码。

JSONParserPost jsonParserpost = new JSONParserPost();
        String output = jsonParserpost.makeHttpRequest(URL, "POST", request); 
        System.out.println("Row output :"+ output.toString());
        JSONObject jsonObject = new JSONObject(output);
        if(jsonObject != null) 
            responeXML = (String)jsonObject.get("response");

在第 2 行，我调用了 REST API。现在我想修复 REST API.

响应持续时间的时间限制

Answer 1

1

URL url = new URL(this.serviceURL);
HttpURLConnection connection = (HttpURLConnection) url.openConnection();

connection.setRequestMethod("POST");
connection.setRequestProperty("Content-Type", "text/xml; charset=utf-8");
connection.setRequestProperty("Accept", "application/xml;");

connection.setDoInput(true);
connection.setDoOutput(true);

/*
 * connection timeout value to 20 seconds
 */
int apiReadTimeOut = 20; // 20 seconds
connection.setConnectTimeout(apiReadTimeOut * 1000);
connection.setReadTimeout(apiReadTimeOut * 1000);

2

HttpClient httpClient = null;

/*
* connection timeout value to 20 seconds
*/
final HttpParams httpParams = new BasicHttpParams();
HttpConnectionParams.setConnectionTimeout(httpParams, 20 * 1000);
httpClient = new DefaultHttpClient(httpParams);

Answer 2

您可以使用spring restTemplate

   @Bean
    public RestTemplate restTemplate() {
        RestTemplate restTemplate = new RestTemplate();
        ((SimpleClientHttpRequestFactory) restTemplate.getRequestFactory()).setConnectTimeout(milisecond);
        ((SimpleClientHttpRequestFactory) restTemplate.getRequestFactory()).setReadTimeout(milisecond);

        return restTemplate;
    }

请找例子 - https://howtodoinjava.com/spring-boot2/resttemplate-timeout-example/

Answer 3

如果您使用的是 httpClient，以下 link 可以帮助您理解您的问题。 .

int CONNECTION_TIMEOUT_MS = timeoutSeconds * 1000; // Timeout in millis.
RequestConfig requestConfig = RequestConfig.custom()
.setConnectionRequestTimeout(CONNECTION_TIMEOUT_MS)
.setConnectTimeout(CONNECTION_TIMEOUT_MS)
.setSocketTimeout(CONNECTION_TIMEOUT_MS)
.build();

HttpPost httpPost = new HttpPost(URL);
httpPost.setConfig(requestConfig);

如何固定响应时间以在 java 中调用 REST API？

How to fixed response time to call REST API in java?

java

api

rest

time

response