tomcat 啟動 認證異常java.io.IOException: Alias name [cas] does not identify a key entry

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　　在搭建CAS server的過程中，Tomcat開啟https，配置秘鑰認證，認證是通過keytool產生的

<Connector port="8443" protocol="org.apache.coyote.http11.Http11Protocol"               maxThreads="150" SSLEnabled="true" scheme="https" secure="true"               clientAuth="true" sslProtocol="TLS" keystoreFile="/home/workspace/server.keystore"                 keystorePass="111111"/>

　　啟動tamcat後，提示如下報錯

org.apache.catalina.LifecycleException: Failed to initialize component [Connector[org.apache.coyote.http11.Http11Protocol-8443]]    at org.apache.catalina.util.LifecycleBase.init(LifecycleBase.java:112)    at org.apache.catalina.core.StandardService.initInternal(StandardService.java:549)    at org.apache.catalina.util.LifecycleBase.init(LifecycleBase.java:107)    at org.apache.catalina.core.StandardServer.initInternal(StandardServer.java:875)    at org.apache.catalina.util.LifecycleBase.init(LifecycleBase.java:107)    at org.apache.catalina.startup.Catalina.load(Catalina.java:632)    at org.apache.catalina.startup.Catalina.load(Catalina.java:655)    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)    at java.lang.reflect.Method.invoke(Method.java:498)    at org.apache.catalina.startup.Bootstrap.load(Bootstrap.java:309)    at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:492)Caused by: org.apache.catalina.LifecycleException: Protocol handler initialization failed    at org.apache.catalina.connector.Connector.initInternal(Connector.java:995)    at org.apache.catalina.util.LifecycleBase.init(LifecycleBase.java:107)    ... 12 moreCaused by: java.lang.IllegalArgumentException: Alias name [null] does not identify a key entry    at org.apache.tomcat.util.net.AbstractJsseEndpoint.createSSLContext(AbstractJsseEndpoint.java:116)    at org.apache.tomcat.util.net.AbstractJsseEndpoint.initialiseSsl(AbstractJsseEndpoint.java:87)    at org.apache.tomcat.util.net.NioEndpoint.bind(NioEndpoint.java:225)    at org.apache.tomcat.util.net.AbstractEndpoint.init(AbstractEndpoint.java:1086)    at org.apache.tomcat.util.net.AbstractJsseEndpoint.init(AbstractJsseEndpoint.java:268)    at org.apache.coyote.AbstractProtocol.init(AbstractProtocol.java:581)    at org.apache.coyote.http11.AbstractHttp11Protocol.init(AbstractHttp11Protocol.java:68)    at org.apache.catalina.connector.Connector.initInternal(Connector.java:993)    ... 13 moreCaused by: java.io.IOException: Alias name [null] does not identify a key entry    at org.apache.tomcat.util.net.jsse.JSSEUtil.getKeyManagers(JSSEUtil.java:242)    at org.apache.tomcat.util.net.AbstractJsseEndpoint.createSSLContext(AbstractJsseEndpoint.java:114)    ... 20 more

　　解決

　　重建秘鑰，並且通過keytool -list -keystore thekeystore

檢查秘鑰的類型，是PrivateKeyEntry就正常了。

• PrivateKeyEntry，為私密金鑰，配置在tomcat的server.xml（CAS服務端）
• trustedCertEntry，為公開金鑰，配置在jdk（應用服務端）

tomcat 啟動 認證異常java.io.IOException: Alias name [cas] does not identify a key entry