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我試圖通過SSL連接到LDAP服務器後，仍然得到SunCertPathBuilderException，並且我得到了服務器證書，並如下安裝它：導入證書
keytool -keystore cacerts -importcert -alias ldapCert -file LdapCert.cer
，我得到了證書安裝成功的消息，我可以使用以下命令驗證證書是否已安裝：
keytool -list -keystore cacerts
我可以在受信任的證書列表中找到我的證書。
這裏就是我如何連接到LDAP服務器：
String host = "server.ip.here;
String userDN = "CN=myuser,OU=EmployeesOU,OU=MainOU,dc=mydomain,dc=net";
String userPassword = "mypassword";
boolean ssl = true;
public static LdapContext connectToLdap(String host,
String userDN, String userPassword,
boolean ssl) throws Exception {
System.out.println("connectToLdap");
String hostPrefix = "ldap";
String ldapPort = "389";
if (ssl) {
hostPrefix = "ldaps";
ldapPort = "636";
}
String providerUrl = hostPrefix + "://" + host + ":" + ldapPort;
//System.out.println("####### LDAP URL: " + providerUrl);
LdapContext ldapContext;
Hashtable<String, String> ldapEnv = new Hashtable<String, String>(11);
ldapEnv.put(Context.INITIAL_CONTEXT_FACTORY,
"com.sun.jndi.ldap.LdapCtxFactory");
ldapEnv.put(Context.PROVIDER_URL, providerUrl);
ldapEnv.put(Context.SECURITY_AUTHENTICATION, "simple");
ldapEnv.put(Context.SECURITY_PRINCIPAL, userDN);
ldapEnv.put(Context.SECURITY_CREDENTIALS, userPassword);
ldapEnv.put("com.sun.jndi.ldap.read.timeout", 1000 * 10 + "");
if (ssl) {
ldapEnv.put(Context.SECURITY_PROTOCOL, "ssl");
}
ldapEnv.put(Context.REFERRAL, "ignore");
try {
ldapContext = new InitialLdapContext(ldapEnv, null);
System.out.println("success connection to ldap");
return ldapContext;
} catch (Exception e) {
System.out.println("failure connection to ldap");
e.printStackTrace();
return null;
}
}
從CMD安裝證書後，並試圖運行該應用程序我仍然得到異常：
javax.naming.CommunicationException: simple bind failed: server.ip:636 [Root exception is 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 com.sun.jndi.ldap.LdapClient.authenticate(LdapClient.java:197)
at com.sun.jndi.ldap.LdapCtx.connect(LdapCtx.java:2694)
at com.sun.jndi.ldap.LdapCtx.<init>(LdapCtx.java:293)
at com.sun.jndi.ldap.LdapCtxFactory.getUsingURL(LdapCtxFactory.java:175)
at com.sun.jndi.ldap.LdapCtxFactory.getUsingURLs(LdapCtxFactory.java:193)
at com.sun.jndi.ldap.LdapCtxFactory.getLdapCtxInstance(LdapCtxFactory.java:136)
at com.sun.jndi.ldap.LdapCtxFactory.getInitialContext(LdapCtxFactory.java:66)
at javax.naming.spi.NamingManager.getInitialContext(NamingManager.java:667)
at javax.naming.InitialContext.getDefaultInitCtx(InitialContext.java:288)
at javax.naming.InitialContext.init(InitialContext.java:223)
at javax.naming.ldap.InitialLdapContext.<init>(InitialLdapContext.java:134)
at ldap.LDAPUtils.connectToLdap(LDAPUtils.java:58)
at Test.main(Test.java:43)
Caused by: 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 com.sun.net.ssl.internal.ssl.Alerts.getSSLException(Alerts.java:174)
at com.sun.net.ssl.internal.ssl.SSLSocketImpl.fatal(SSLSocketImpl.java:1623)
at com.sun.net.ssl.internal.ssl.Handshaker.fatalSE(Handshaker.java:198)
at com.sun.net.ssl.internal.ssl.Handshaker.fatalSE(Handshaker.java:192)
at com.sun.net.ssl.internal.ssl.ClientHandshaker.serverCertificate(ClientHandshaker.java:1074)
at com.sun.net.ssl.internal.ssl.ClientHandshaker.processMessage(ClientHandshaker.java:128)
at com.sun.net.ssl.internal.ssl.Handshaker.processLoop(Handshaker.java:529)
at com.sun.net.ssl.internal.ssl.Handshaker.process_record(Handshaker.java:465)
at com.sun.net.ssl.internal.ssl.SSLSocketImpl.readRecord(SSLSocketImpl.java:884)
at com.sun.net.ssl.internal.ssl.SSLSocketImpl.performInitialHandshake(SSLSocketImpl.java:1120)
at com.sun.net.ssl.internal.ssl.SSLSocketImpl.readDataRecord(SSLSocketImpl.java:744)
at com.sun.net.ssl.internal.ssl.AppInputStream.read(AppInputStream.java:75)
at java.io.BufferedInputStream.fill(BufferedInputStream.java:218)
at java.io.BufferedInputStream.read1(BufferedInputStream.java:258)
at java.io.BufferedInputStream.read(BufferedInputStream.java:317)
at com.sun.jndi.ldap.Connection.run(Connection.java:808)
at java.lang.Thread.run(Thread.java:619)
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:325)
at sun.security.validator.PKIXValidator.engineValidate(PKIXValidator.java:219)
at sun.security.validator.Validator.validate(Validator.java:218)
at com.sun.net.ssl.internal.ssl.X509TrustManagerImpl.validate(X509TrustManagerImpl.java:126)
at com.sun.net.ssl.internal.ssl.X509TrustManagerImpl.checkServerTrusted(X509TrustManagerImpl.java:209)
at com.sun.net.ssl.internal.ssl.X509TrustManagerImpl.checkServerTrusted(X509TrustManagerImpl.java:249)
at com.sun.net.ssl.internal.ssl.ClientHandshaker.serverCertificate(ClientHandshaker.java:1053)
... 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:174)
at java.security.cert.CertPathBuilder.build(CertPathBuilder.java:238)
at sun.security.validator.PKIXValidator.doBuild(PKIXValidator.java:320)
我試着在連接到ldap之前使用disableCertificateValidation方法，如在後Java client certificates over HTTPS/SSL
但它也給出了相同的例外。
請告訴我爲什麼我仍然得到這個錯誤。