java.net.SocketException : Unconnected sockets not implemented 异常

Question

尝试使用 Java 代码连接到 Sharepoint 服务器并获得以下堆栈跟踪。我正在编辑现有代码并更改 Sharepoint 代码的 URL。我对这个 Sharepoint 模块很陌生。请帮助:)

         [java] Caused by: java.net.SocketException: Unconnected is not implemented 
         [java] at javax.net.SocketFactory.createSocket(SocketFactory.java:97)
         [java] at sun.reflect.GeneratedMethodAccessor3.invoke(Unknown Source)
         [java] at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMet
         hodAccessorImpl.java:25)
         [java] at java.lang.reflect.Method.invoke(Method.java:585)
         [java] at org.apache.commons.httpclient.protocol.ReflectionSocketFactor
         y.createSocket(ReflectionSocketFactory.java:116)
         [java] at org.apache.commons.httpclient.protocol.SSLProtocolSocketFacto
         ry.createSocket(SSLProtocolSocketFactory.java:130)
         [java] at org.apache.commons.httpclient.HttpConnection.open(HttpConnect
         ion.java:707)
         [java] at org.apache.commons.httpclient.MultiThreadedHttpConnectionMana
         ger$HttpConnectionAdapter.open(MultiThreadedHttpConnectionManager.java:1361)
         [java] at org.apache.commons.httpclient.HttpMethodDirector.executeWithR
         etry(HttpMethodDirector.java:387)
        [java] at org.apache.commons.httpclient.HttpMethodDirector.executeMetho
        d(HttpMethodDirector.java:171)
         [java] at org.apache.commons.httpclient.HttpClient.executeMethod(HttpCl
         ient.java:397)
           [java] at org.apache.axis.transport.http.CommonsHTTPSender.invoke(Commo
         nsHTTPSender.java:196)

代码:

public boolean windowsNTLMAuthentication(String uname, String pass, String server, String urlAddress, String domain) { 
    try { 
        NtlmAuthenticator authenticator = new NtlmAuthenticator();     
        authenticator.setAuthentication(userName, password);  
        NtlmJcifsCredentials.register(userName, password, server, domain); 
        stub = new ListsLocator(); 
        EngineConfiguration econfig = stub.getEngineConfiguration();  
        stub.setListsSoapEndpointAddress(urlAddress);  
        stub.setEngineConfiguration(econfig); 
        stub.setMaintainSession(true); 
    } catch (Exception ex) { 
        ex.printStackTrace(); 
        return false; 
    }
}

Answer 1

套接字异常反过来是由于服务器之间没有发生 SSL 握手，这意味着没有有效的 ccertificate。

首先您需要使用以下代码生成证书

import java.io.*;
import java.net.URL;

import java.security.*;
import java.security.cert.*;

import javax.net.ssl.*;

public class InstallCert {

    public static void main(String[] args) throws Exception {
        String host;
        int port;
        char[] passphrase;
        if ((args.length == 1) || (args.length == 2)) {
            String[] c = args[0].split(":");
            host = c[0];
            port = (c.length == 1) ? 443 : Integer.parseInt(c[1]);
            String p = (args.length == 1) ? "changeit" : args[1];
            passphrase = p.toCharArray();
        } else {
            System.out.println("Usage: java InstallCert <host>[:port] [passphrase]");
            return;
        }

        File file = new File("jssecacerts");
        if (file.isFile() == false) {
            char SEP = File.separatorChar;
            File dir = new File(System.getProperty("java.home") + SEP
                    + "lib" + SEP + "security");
            file = new File(dir, "jssecacerts");
            if (file.isFile() == false) {
                file = new File(dir, "cacerts");
            }
        }
        System.out.println("Loading KeyStore " + file + "...");
        InputStream in = new FileInputStream(file);
        KeyStore ks = KeyStore.getInstance(KeyStore.getDefaultType());
        ks.load(in, passphrase);
        in.close();

        SSLContext context = SSLContext.getInstance("TLS");
        TrustManagerFactory tmf =
            TrustManagerFactory.getInstance(TrustManagerFactory.getDefaultAlgorithm());
        tmf.init(ks);
        X509TrustManager defaultTrustManager = (X509TrustManager)tmf.getTrustManagers()[0];
        SavingTrustManager tm = new SavingTrustManager(defaultTrustManager);
        context.init(null, new TrustManager[] {tm}, null);
        SSLSocketFactory factory = context.getSocketFactory();

        System.out.println("Opening connection to " + host + ":" + port + "...");
        SSLSocket socket = (SSLSocket)factory.createSocket(host, port);
        socket.setSoTimeout(10000);
        try {
            System.out.println("Starting SSL handshake...");
            socket.startHandshake();
            socket.close();
            System.out.println();
            System.out.println("No errors, certificate is already trusted");
        } catch (SSLException e) {
            System.out.println();
            e.printStackTrace(System.out);
        }

        X509Certificate[] chain = tm.chain;
        if (chain == null) {
            System.out.println("Could not obtain server certificate chain");
            return;
        }

        BufferedReader reader =
                new BufferedReader(new InputStreamReader(System.in));

        System.out.println();
        System.out.println("Server sent " + chain.length + " certificate(s):");
        System.out.println();
        MessageDigest sha1 = MessageDigest.getInstance("SHA1");
        MessageDigest md5 = MessageDigest.getInstance("MD5");
        for (int i = 0; i < chain.length; i++) {
            X509Certificate cert = chain[i];
            System.out.println
                (" " + (i + 1) + " Subject " + cert.getSubjectDN());
            System.out.println("   Issuer  " + cert.getIssuerDN());
            sha1.update(cert.getEncoded());
            System.out.println("   sha1    " + toHexString(sha1.digest()));
            md5.update(cert.getEncoded());
            System.out.println("   md5     " + toHexString(md5.digest()));
            System.out.println();
        }

        System.out.println("Enter certificate to add to trusted keystore or 'q' to quit: [1]");
        String line = reader.readLine().trim();
        int k;
        try {
            k = (line.length() == 0) ? 0 : Integer.parseInt(line) - 1;
        } catch (NumberFormatException e) {
            System.out.println("KeyStore not changed");
            return;
        }

        X509Certificate cert = chain[k];
        String alias = host + "-" + (k + 1);
        ks.setCertificateEntry(alias, cert);

        OutputStream out = new FileOutputStream("jssecacerts");
        ks.store(out, passphrase);
        out.close();

        System.out.println();
        System.out.println(cert);
        System.out.println();
        System.out.println
                ("Added certificate to keystore 'jssecacerts' using alias '"
                + alias + "'");
    }

    private static final char[] HEXDIGITS = "0123456789abcdef".toCharArray();

    private static String toHexString(byte[] bytes) {
        StringBuilder sb = new StringBuilder(bytes.length * 3);
        for (int b : bytes) {
            b &= 0xff;
            sb.append(HEXDIGITS[b >> 4]);
            sb.append(HEXDIGITS[b & 15]);
            sb.append(' ');
        }
        return sb.toString();
    }

    private static class SavingTrustManager implements X509TrustManager {

        private final X509TrustManager tm;
        private X509Certificate[] chain;

        SavingTrustManager(X509TrustManager tm) {
            this.tm = tm;
        }

        public X509Certificate[] getAcceptedIssuers() {
            throw new UnsupportedOperationException();
        }

        public void checkClientTrusted(X509Certificate[] chain, String authType)
                throws CertificateException {
            throw new UnsupportedOperationException();
        }

        public void checkServerTrusted(X509Certificate[] chain, String authType)
                throws CertificateException {
            this.chain = chain;
            tm.checkServerTrusted(chain, authType);
        }
    }

}

生成证书文件后，在进行身份验证之前导入相同的文件，如下所示(Ex:):

System.setProperty("javax.net.ssl.trustStore", "生成的证书文件路径");System.setProperty("javax.net.ssl.trustStorePassword", "changeit");boolean auth = windowsNTLMAuthentication(用户名、密码、主机、url、域);

这解决了 SSl 握手和套接字异常