Почему возникает ошибка HttpHostConnectException при вызове API с HTTPClient 4.1.x с HttpPost, сертификат SSL? - PullRequest
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Почему возникает ошибка HttpHostConnectException при вызове API с HTTPClient 4.1.x с HttpPost, сертификат SSL?

0 голосов
/ 11 апреля 2019

У меня проблемы с чтением API с HTTPClient 4.1.x, HttpPost, SSL-сертификатом.Когда я пытаюсь прочитать API с протоколом "http".Все нормально.Но когда я пытаюсь прочитать API с протоколом "https".Это не работает.Выдает исключение «org.apache.http.conn.HttpHostConnectException» с подключением: «Соединение с https://example.com отказано в нуле»

Это мой код: 

public class CallAPI {
    public static void main(String[] args) {
        Map<String, Object> params = new HashMap<String, Object>();
        params.put("a", "");
        params.put("b", new File("D://File.txt"));
        Map<Integer, String> responseDataMap = new HashMap<Integer, String>();
        String url = "https://example.com";
        responseDataMap = callAPIwithFormDataSSL(url, params);
    }
private static Map<Integer, String> callAPIwithFormDataSSL(String url, Map<String, Object> params) {
        try {
            DefaultHttpClient httpclient = new DefaultHttpClient(new BasicHttpParams());
            TrustStrategy acceptingTrustStrategy = (cert, authType) -> true;
            SSLSocketFactory sslsf = new SSLSocketFactory(
                  acceptingTrustStrategy, SSLSocketFactory.ALLOW_ALL_HOSTNAME_VERIFIER);         
            HttpPost httppost = new HttpPost(url);
            int port;
            if (httppost.getURI().getPort() == -1) {
                port = 80;
            } else {
                port = httppost.getURI().getPort();
            }
            Scheme scheme = new Scheme("https", port , sslsf);
            httpclient.getConnectionManager().getSchemeRegistry().register(scheme);

            HttpResponse response = null;
            MultipartEntity entity = new MultipartEntity(HttpMultipartMode.BROWSER_COMPATIBLE);
            String key = null;
            Object object = null;
            for (Map.Entry<String, Object> entry : params.entrySet()) {
                key = entry.getKey();
                object = entry.getValue();
                if (object instanceof String) {
                    entity.addPart(key, new StringBody(object.toString()));
                } else if (object instanceof File) {
                    entity.addPart(key, new FileBody((File) object));
                } else {
                    entity.addPart(key, null);
                }
            }
            httppost.setEntity(entity);
            response = httpclient.execute(httppost);
            int statusCode = response.getStatusLine().getStatusCode();
            String resEntity = EntityUtils.toString(response.getEntity());

            Map<Integer, String> responseDataMap = new HashMap<Integer, String>();
            responseDataMap.put(statusCode, resEntity);
            return responseDataMap;
        } catch (Exception e) {
            e.printStackTrace();
            return null;
        }
    }

Исключение: 

org.apache.http.conn.HttpHostConnectException: Connection to https://example.com refused null

    at org.apache.http.impl.conn.DefaultClientConnectionOperator.openConnection(DefaultClientConnectionOperator.java:158)
    at org.apache.http.impl.conn.AbstractPoolEntry.open(AbstractPoolEntry.java:150)
    at org.apache.http.impl.conn.AbstractPooledConnAdapter.open(AbstractPooledConnAdapter.java:121)
    at org.apache.http.impl.client.DefaultRequestDirector.tryConnect(DefaultRequestDirector.java:575)
    at org.apache.http.impl.client.DefaultRequestDirector.execute(DefaultRequestDirector.java:425)
    at org.apache.http.impl.client.AbstractHttpClient.execute(AbstractHttpClient.java:820)
    at org.apache.http.impl.client.AbstractHttpClient.execute(AbstractHttpClient.java:754)
    at org.apache.http.impl.client.AbstractHttpClient.execute(AbstractHttpClient.java:732)
    at xxx.CallAPI.callAPIwithFormDataSSL(CallAPI.java:75)
    at xxx.CallAPI.main(CallAPI.java:35)
Caused by: java.net.ConnectException: Connection timed out: connect
    at java.net.DualStackPlainSocketImpl.connect0(Native Method)
    at java.net.DualStackPlainSocketImpl.socketConnect(DualStackPlainSocketImpl.java:79)
    at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:350)
    at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:206)
    at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:188)
    at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:172)
    at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392)
    at java.net.Socket.connect(Socket.java:589)
    at sun.security.ssl.SSLSocketImpl.connect(SSLSocketImpl.java:668)
    at org.apache.http.conn.ssl.SSLSocketFactory.connectSocket(SSLSocketFactory.java:375)
    at org.apache.http.impl.conn.DefaultClientConnectionOperator.openConnection(DefaultClientConnectionOperator.java:148)
    ... 9 more
...