如何在 SocketTimeoutException 后自动重新连接？

Question

我设置了连接超时。

HttpClient httpClient = org.apache.http.impl.client.HttpClientBuilder.create().build();

HttpComponentsClientHttpRequestFactory factory = new HttpComponentsClientHttpRequestFactory();
factory.setConnectTimeout((int) TimeUnit.MINUTES.toMillis(2));
factory.setReadTimeout((int) TimeUnit.MINUTES.toMillis(2));
factory.setHttpClient(httpClient);

RestTemplate restTemplate = new RestTemplate(factory);

我想在 SocketTimeoutException 后再次发送请求 5 次。我怎样才能自动做到这一点？

Answer 1

int tries, maxRetries = 5;
Connection connection;
do {
    try {
        // initialize connection
    } catch (SocketTimeoutException ex) {
        ++tries;
        if (maxRetries < tries) {
            // exit 
        }
        // sleep for some time between attempts
    }
} while (connection == null);

您可以像上面那样使用一个简单的 do while 循环。