必应 Azure 搜索 API [英] Bing Azure search api

问题描述

我正在尝试连接到 Bing 搜索 API，但无法使代码正常工作.我用谷歌搜索了这个问题，但没有找到工作代码.

I'm trying to connect to Bing search api and have not been able to get the code to work. I've googled the problem and no working code can be found.

这是我的代码:

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.net.HttpURLConnection;
import java.net.MalformedURLException;
import java.net.URL;

import org.apache.commons.codec.binary.Base64;


public class BSearch{
    public static void main(String[] args) {
        // TODO Auto-generated method stub
        //--------------------------------------Bing search------------------------------
        String searchText = "barack";
        searchText = searchText.replaceAll(" ", "%20");
        String accountKey="MYACCOUNTKEY";
        byte[] accountKeyBytes = Base64.encodeBase64((accountKey + ":" + accountKey).getBytes());
        String accountKeyEnc = new String(accountKeyBytes);
        URL url;
        try {
            url = new URL(
                    "https://api.datamarket.azure.com/Data.ashx/Bing/Search/v1/Web?Query=%27" + searchText + "%27&$top=50&$format=json");
        HttpURLConnection conn = (HttpURLConnection) url.openConnection();
        conn.setRequestMethod("GET");
        conn.setRequestProperty("Authorization", "Basic " + accountKeyEnc);

     //  conn.setRequestProperty("Accept", "application/json");

        BufferedReader br = new BufferedReader(new InputStreamReader(
                (conn.getInputStream())));
        StringBuilder sb = new StringBuilder();
        String output;
        System.out.println("Output from Server .... \n");
        while ((output = br.readLine()) != null) {
            sb.append(output);

            System.out.println(output);
        }

        conn.disconnect();
        } catch (MalformedURLException e1) {
            // TODO Auto-generated catch block
            e1.printStackTrace();
        } catch (IOException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }


    }
}

这会导致以下错误:

javax.net.ssl.SSLHandshakeException: sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
    at sun.security.ssl.Alerts.getSSLException(Alerts.java:192)
    at sun.security.ssl.SSLSocketImpl.fatal(SSLSocketImpl.java:1886)
    at sun.security.ssl.Handshaker.fatalSE(Handshaker.java:276)
    at sun.security.ssl.Handshaker.fatalSE(Handshaker.java:270)
    at sun.security.ssl.ClientHandshaker.serverCertificate(ClientHandshaker.java:1341)
    at sun.security.ssl.ClientHandshaker.processMessage(ClientHandshaker.java:153)
    at sun.security.ssl.Handshaker.processLoop(Handshaker.java:868)
    at sun.security.ssl.Handshaker.process_record(Handshaker.java:804)
    at sun.security.ssl.SSLSocketImpl.readRecord(SSLSocketImpl.java:1016)
    at sun.security.ssl.SSLSocketImpl.performInitialHandshake(SSLSocketImpl.java:1312)
    at sun.security.ssl.SSLSocketImpl.startHandshake(SSLSocketImpl.java:1339)
    at sun.security.ssl.SSLSocketImpl.startHandshake(SSLSocketImpl.java:1323)
    at sun.net.www.protocol.https.HttpsClient.afterConnect(HttpsClient.java:515)
    at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect(AbstractDelegateHttpsURLConnection.java:185)
    at sun.net.www.protocol.http.HttpURLConnection.getInputStream(HttpURLConnection.java:1299)
    at sun.net.www.protocol.https.HttpsURLConnectionImpl.getInputStream(HttpsURLConnectionImpl.java:254)
    at BSearch.main(BSearch.java:30)
Caused by: sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
    at sun.security.validator.PKIXValidator.doBuild(PKIXValidator.java:385)
    at sun.security.validator.PKIXValidator.engineValidate(PKIXValidator.java:292)
    at sun.security.validator.Validator.validate(Validator.java:260)
    at sun.security.ssl.X509TrustManagerImpl.validate(X509TrustManagerImpl.java:326)
    at sun.security.ssl.X509TrustManagerImpl.checkTrusted(X509TrustManagerImpl.java:231)
    at sun.security.ssl.X509TrustManagerImpl.checkServerTrusted(X509TrustManagerImpl.java:126)
    at sun.security.ssl.ClientHandshaker.serverCertificate(ClientHandshaker.java:1323)
    ... 12 more
Caused by: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
    at sun.security.provider.certpath.SunCertPathBuilder.engineBuild(SunCertPathBuilder.java:196)
    at java.security.cert.CertPathBuilder.build(CertPathBuilder.java:268)
    at sun.security.validator.PKIXValidator.doBuild(PKIXValidator.java:380)
    ... 18 more

谢谢.

推荐答案

您的 Java 客户端需要 Bing 的服务器公共证书才能开始通信 (SSLHandshake)，您收到错误，因为 Bing 的证书不在您的默认 Java 密钥库中作为受信任的证书.

Your Java client needs the Bing's server public certificate to start the communication (SSLHandshake), you got the error because Bing's certificate is not in your default Java Keystore as a trusted certificate.

您可以执行以下操作:

• 使用 keytool，名为 cacerts 的默认 Keystore 通常位于 JAVA_HOME\jre\lib\security\

• Get the Bing's certificate and import to your default Java Keystore for trusted certificates using keytool, your default Keystore named cacerts is usually located at JAVA_HOME\jre\lib\security\

keytool -importcert -file bingcertificate.cer -keystore cacerts -alias "bingAlias"

keytool -importcert -file bingcertificate.cer -keystore cacerts -alias "bingAlias"

• 创建一个虚拟的 SSLSocketFactory 以获取一个 SSLContext，它接受任何证书并将其与您的 http 连接对象一起使用.
• Create a dummy SSLSocketFactory to get a SSLContext which accepts any certificate and use it with your http connection object.

工厂示例:

public class DummySSLSocketFactory extends SSLSocketFactory {
    SSLContext sslContext = SSLContext.getInstance("TLS");

    public DummySSLSocketFactory(KeyStore truststore) throws NoSuchAlgorithmException, KeyManagementException, KeyStoreException, UnrecoverableKeyException {
        super(truststore);

        TrustManager tm = new X509TrustManager() {
            public void checkClientTrusted(X509Certificate[] chain, String authType) throws CertificateException {
                //
            }

            public void checkServerTrusted(X509Certificate[] chain, String authType) throws CertificateException {
                //
            }

            public X509Certificate[] getAcceptedIssuers() {
                return null;
            }
        };

        sslContext.init(null, new TrustManager[] { tm }, null);
    }

    @Override
    public Socket createSocket(Socket socket, String host, int port, boolean autoClose) throws IOException, UnknownHostException {
        return sslContext.getSocketFactory().createSocket(socket, host, port, autoClose);
    }

    @Override
    public Socket createSocket() throws IOException {
        return sslContext.getSocketFactory().createSocket();
    }
}

然后

HttpsURLConnection conn = (HttpsURLConnection)url.openConnection();
conn.setSSLSocketFactory(new DummySSLSocketFactory());

• 创建您自己的密钥库，导入证书并将其加载到您的代码中以获取新工厂

密钥库示例:

KeyStore keyStore = KeyStore.getInstance(KeyStore.getDefaultType());
keystore.load(new FileInputStream(new File("keystoreCompletePath")), "passwdKeyStore");
TrustManagerFactory tmf = TrustManagerFactory.getInstance(TrustManagerFactory.getDefaultAlgorithm());
tmf.init(keyStore);
SSLContext ctx = SSLContext.getInstance("TLS");
ctx.init(null, tmf.getTrustManagers(), null);
SSLSocketFactory sslFactory = ctx.getSocketFactory();

然后

HttpsURLConnection conn = (HttpsURLConnection)url.openConnection();
conn.setSSLSocketFactory(sslFactory);

这篇关于必应 Azure 搜索 API的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！