PKIX路径构建失败，但证书是cacerts

我有问题，也描述here . 问题是我创建了一个证书并将其添加到tomcat的密钥库中，然后我将其复制到 cacerts truststore . 但是，不知怎的，我仍然得到这个错误 .

What I have done:

1）keytool -genkey -alias cas -keyalg RSA -keystore cas.keystore -storepass changeit 2）keytool -exportcert -alias cas -file cas.crt -keystore cas.keystore

步骤2）因为我想把证书放在我的tomcat密钥库和 cacerts

3）keytool -import -alias cas -file cas.crt -keystore“C：\ Program Files \ Java \ jdk1.8.0_77 \ jre \ lib \ security \ cacerts”4）keytool -import -alias cas -file“C ：\ Program Files \ Java \ jdk1.8.0_7 \ jre \ bin \ cas.crt“-keystore”D：\ portal \ apache-tomcat-8.0.3 \ conf \ portal.keystore“

所以现在使用第3步和第4步，我在tomcat密钥库和truststore cacerts 中添加了证书 .

现在我可以列出我的信任和密钥库

使用此命令..

keytool -list -v -keystore“C：\ Program Files \ Java \ jdk1.8.0_77 \ jre \ lib \ security \ cacerts”-alias cas

......我明白了：

Keystore-Kennwort eingeben:
Aliasname: cas
Erstellungsdatum: 09.09.2016
Eintragstyp: trustedCertEntry

Eigentümer: CN=xxx, OU=xxx, O=xxx, L=xxx, ST=xxx, C=xxx
Aussteller: CN=xxx, OU=xxx, O=xxx, L=xxx, ST=xxx, C=xxx
Seriennummer: xxx
Gültig von: Fri Sep 09 10:40:55 CEST 2016 bis: Thu Dec 08 09:40:55 CET 2016
Zertifikat-Fingerprints:
         MD5:  ....
         SHA1: ....
         SHA256: ....
         Signaturalgorithmusname: SHA256withRSA
         Version: 3

Erweiterungen:

#1: ObjectId: 2.5.29.14 Criticality=false
SubjectKeyIdentifier [
KeyIdentifier [...
]
]

有了这个：

keytool -list -v -keystore“D：\ portal \ apache-tomcat-8.0.30 \ conf \ portal.keystore”-alias cas

我明白了：

Keystore-Kennwort eingeben:

Keystore-Typ: JKS
Keystore-Provider: SUN

Keystore enthält 1 Eintrag

Aliasname: cas
Erstellungsdatum: 09.09.2016
Eintragstyp: trustedCertEntry

    Eigentümer: CN=xxx, OU=xxx, O=xxx, L=xxx, ST=xxx, C=xxx
    Aussteller: CN=xxx, OU=xxx, O=xxx, L=xxx, ST=xxx, C=xxx
Seriennummer: ...
Gültig von: Fri Sep 09 10:40:55 CEST 2016 bis: Thu Dec 08 09:40:55 CET 2016
Zertifikat-Fingerprints:
         MD5:  ...
         SHA1: ...
         SHA256: ...
         Signaturalgorithmusname: SHA256withRSA
         Version: 3

Erweiterungen:

#1: ObjectId: 2.5.29.14 Criticality=false
SubjectKeyIdentifier [
KeyIdentifier [
]

]

如果不清楚：证书（cas）是相同的 .

所以我的印象是证书现在位于tomcat服务器的密钥库和信任库 cacerts 中 . 但不知何故，当我在CAS服务器上输入我的凭据并重定向时，我仍然会遇到此异常（完整的堆栈跟踪）：

HTTP Status 500 - 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

这些是我的tomcats中的连接器 server.xml ：

<Connector port="8743" protocol="org.apache.coyote.http11.Http11Protocol" SSLEnabled="true"
               maxThreads="150" scheme="https" keystoreFile="${catalina.base}/conf/portal.keystore" keystorePass="changeit" 
               secure="true" connectionTimeout="240000" 
               clientAuth="false" sslProtocol="TLS" allowUnsafeLegacyRenegotiation="true" />

    <!-- Define an AJP 1.3 Connector on port 8009 -->
    <Connector port="8309" protocol="AJP/1.3" redirectPort="8743" />

我的问题的可能原因是什么？所有其他线程（如开头提到的那些线程）指出OP没有将证书导入cacerts文件，但我做到了 .

完整的堆栈跟踪：

09-Sep-2016 12:05:30.146 SEVERE [http-bio-8743-exec-4] org.apache.catalina.core.StandardWrapperValve.invoke Servlet.service() for servlet [default] in context with path [/cas-sample] threw exception
 java.lang.RuntimeException: 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 org.jasig.cas.client.util.CommonUtils.getResponseFromServer(CommonUtils.java:443)
    at org.jasig.cas.client.validation.AbstractCasProtocolUrlBasedTicketValidator.retrieveResponseFromServer(AbstractCasProtocolUrlBasedTicketValidator.java:41)
    at org.jasig.cas.client.validation.AbstractUrlBasedTicketValidator.validate(AbstractUrlBasedTicketValidator.java:193)
    at org.jasig.cas.client.validation.AbstractTicketValidationFilter.doFilter(AbstractTicketValidationFilter.java:204)
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:239)
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
    at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:212)
    at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:106)
    at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:502)
    at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:141)
    at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:79)
    at org.apache.catalina.valves.AbstractAccessLogValve.invoke(AbstractAccessLogValve.java:616)
    at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:88)
    at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:521)
    at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1096)
    at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:674)
    at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:279)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
    at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
    at java.lang.Thread.run(Thread.java:745)
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 sun.security.ssl.Alerts.getSSLException(Alerts.java:192)
    at sun.security.ssl.SSLSocketImpl.fatal(SSLSocketImpl.java:1949)
    at sun.security.ssl.Handshaker.fatalSE(Handshaker.java:302)
    at sun.security.ssl.Handshaker.fatalSE(Handshaker.java:296)
    at sun.security.ssl.ClientHandshaker.serverCertificate(ClientHandshaker.java:1509)
    at sun.security.ssl.ClientHandshaker.processMessage(ClientHandshaker.java:216)
    at sun.security.ssl.Handshaker.processLoop(Handshaker.java:979)
    at sun.security.ssl.Handshaker.process_record(Handshaker.java:914)
    at sun.security.ssl.SSLSocketImpl.readRecord(SSLSocketImpl.java:1062)
    at sun.security.ssl.SSLSocketImpl.performInitialHandshake(SSLSocketImpl.java:1375)
    at sun.security.ssl.SSLSocketImpl.startHandshake(SSLSocketImpl.java:1403)
    at sun.security.ssl.SSLSocketImpl.startHandshake(SSLSocketImpl.java:1387)
    at sun.net.www.protocol.https.HttpsClient.afterConnect(HttpsClient.java:559)
    at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect(AbstractDelegateHttpsURLConnection.java:185)
    at sun.net.www.protocol.http.HttpURLConnection.getInputStream0(HttpURLConnection.java:1513)
    at sun.net.www.protocol.http.HttpURLConnection.getInputStream(HttpURLConnection.java:1441)
    at sun.net.www.protocol.https.HttpsURLConnectionImpl.getInputStream(HttpsURLConnectionImpl.java:254)
    at org.jasig.cas.client.util.CommonUtils.getResponseFromServer(CommonUtils.java:429)
    ... 20 more
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:387)
    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:324)
    at sun.security.ssl.X509TrustManagerImpl.checkTrusted(X509TrustManagerImpl.java:229)
    at sun.security.ssl.X509TrustManagerImpl.checkServerTrusted(X509TrustManagerImpl.java:124)
    at sun.security.ssl.ClientHandshaker.serverCertificate(ClientHandshaker.java:1491)
    ... 33 more
Caused by: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
    at sun.security.provider.certpath.SunCertPathBuilder.build(SunCertPathBuilder.java:141)
    at sun.security.provider.certpath.SunCertPathBuilder.engineBuild(SunCertPathBuilder.java:126)
    at java.security.cert.CertPathBuilder.build(CertPathBuilder.java:280)
    at sun.security.validator.PKIXValidator.doBuild(PKIXValidator.java:382)
    ... 39 more