Java HttpsURLConnection.setInstanceFollowRedirects方法代码示例

import javax.net.ssl.HttpsURLConnection; //导入方法依赖的package包/类
/**
 * @param sampleRate
 *            The samleRate
 * @param url
 *            The URL
 * @return The HTTPSURLConnection
 * @throws IOException
 *             if something goes wrong in reading the file.
 */
private HttpsURLConnection getHttpsURLConnection(int sampleRate , URL url) throws IOException {
	URLConnection urlConn = url.openConnection();
	if (! ( urlConn instanceof HttpsURLConnection )) {
		throw new IOException("URL is not an Https URL");
	}
	HttpsURLConnection httpConn = (HttpsURLConnection) urlConn;
	httpConn.setAllowUserInteraction(false);
	httpConn.setInstanceFollowRedirects(true);
	httpConn.setRequestMethod("POST");
	httpConn.setDoOutput(true);
	httpConn.setChunkedStreamingMode(0);
	httpConn.setRequestProperty("Transfer-Encoding", "chunked");
	httpConn.setRequestProperty("Content-Type", "audio/x-flac; rate=" + sampleRate);
	// also worked with ("Content-Type", "audio/amr; rate=8000");
	httpConn.connect();
	return httpConn;
}
 

import javax.net.ssl.HttpsURLConnection; //导入方法依赖的package包/类
/**
		 * Prepare.
		 *
		 * @param requestURL the request URL
		 * @return the URL processor
		 * @throws IOException Signals that an I/O exception has occurred.
		 * @throws KeyStoreException 
		 * @throws CertificateException 
		 * @throws NoSuchAlgorithmException 
		 * @throws KeyManagementException 
		 */
		public URLProcessor prepare(URL requestURL) throws IOException, KeyManagementException, NoSuchAlgorithmException, CertificateException, KeyStoreException {
//			System.out.println("requestURL=");
//			System.out.println(requestURL);

			connection = (HttpsURLConnection) requestURL.openConnection();
			connection.setInstanceFollowRedirects(false);
			Trust.trustSpecific(connection, truststoreFile);

			connection.setRequestMethod("GET");
			if (accessToken != null) {
				connection.setRequestProperty("Authorization", "Bearer " + accessToken);
			}

			if (uploadFile != null) {
				injectUpload();
			}

			return this;
		}
 

import javax.net.ssl.HttpsURLConnection; //导入方法依赖的package包/类
/**
 * Performs a raw public API query.
 * @param method the REST resource
 * @return result JSON
 */
private String publicApiQuery(String method) {
    BufferedReader in = null;
    try {
        final String urlMethod = String.format("%s/%s/%s", ROOT_URL, PRIVATE_PATH, method);
        final URLConnection con = new URL(urlMethod).openConnection();
        final HttpsURLConnection httpsConn = (HttpsURLConnection) con;
        httpsConn.setRequestMethod("GET");
        httpsConn.setInstanceFollowRedirects(true);
        con.setRequestProperty("Content-Type", "application/json");
        in = new BufferedReader(new InputStreamReader(con.getInputStream()));
        String inputLine;
        final StringBuilder response = new StringBuilder();
        while ((inputLine = in.readLine()) != null) {
            response.append(inputLine);
        }
        return response.toString();
    } catch (Exception e) {
        throw new CryptopiaClientException("An error occurred communicating with Cryptopia.", e);
    } finally {
        if (in != null) {
            try {
                in.close();
            } catch (IOException ignored) {}
        }
    }
}
 

import javax.net.ssl.HttpsURLConnection; //导入方法依赖的package包/类
static boolean linkIsReview(String link)
{
    try
    {
        HttpURLConnection con = (HttpURLConnection) new URL(link).openConnection();
        HttpsURLConnection sslCon = (HttpsURLConnection) con;
        sslCon.setInstanceFollowRedirects(false);
        sslCon.connect();
        if(con.getResponseCode() == HttpURLConnection.HTTP_MOVED_PERM || con.getResponseCode() == HttpURLConnection.HTTP_MOVED_TEMP)
        {
            String newUrl = con.getHeaderField("Location");
            newUrl = "https://nl.trustpilot.com" + newUrl;
            con.disconnect();
            return true;
        }

    }
    catch (Exception ex)
    {
        System.out.println(ex);
    }
    return false;
}
 

import javax.net.ssl.HttpsURLConnection; //导入方法依赖的package包/类
/**
 * Performs a raw private API query.
 * @param method the REST resource
 * @param postParam the JSON to send in the request body.
 * @return result JSON
 */
//Thanks to sampey from https://www.cryptopia.co.nz/Forum/Thread/262
private String privateApiQuery(String method, String postParam) {
    if (secretKey == null) {
        throw new CryptopiaClientException("Please set your secret key before attempting " +
                "to access any private API methods.");
    }
    if (key == null) {
        throw new CryptopiaClientException("Please set your key before attempting " +
                "to access any private API methods.");
    }
    BufferedReader in = null;
    try {
        final String urlMethod = String.format("%s/%s/%s", ROOT_URL, PRIVATE_PATH, method);
        final String nonce = String.valueOf(System.currentTimeMillis());
        final StringBuilder reqSignature = new StringBuilder();
        reqSignature
                .append(key)
                .append("POST")
                .append(URLEncoder.encode(urlMethod, StandardCharsets.UTF_8.toString()).toLowerCase())
                .append(nonce)
                .append(getMD5_B64(postParam));
        final StringBuilder auth = new StringBuilder();
        auth.append("amx ")
                .append(key)
                .append(":")
                .append(sha256_B64(reqSignature.toString()))
                .append(":")
                .append(nonce);
        final URLConnection con = new URL(urlMethod).openConnection();
        con.setDoOutput(true);
        final HttpsURLConnection httpsConn = (HttpsURLConnection) con;
        httpsConn.setRequestMethod("POST");
        httpsConn.setInstanceFollowRedirects(true);
        con.setRequestProperty("Authorization", auth.toString());
        con.setRequestProperty("Content-Type", "application/json");
        final DataOutputStream wr = new DataOutputStream(con.getOutputStream());
        wr.writeBytes(postParam);
        wr.flush();
        wr.close();
        in = new BufferedReader(new InputStreamReader(con.getInputStream()));
        String inputLine;
        StringBuilder response = new StringBuilder();
        while ((inputLine = in.readLine()) != null) {
            response.append(inputLine);
        }
        return response.toString();
    }catch (Exception e) {
        throw new CryptopiaClientException("An error occurred communicating with Cryptopia.", e);
    } finally {
        if (in != null) {
            try {
                in.close();
            } catch (IOException ignored) {}
        }
    }
}