tomcat 啓動 證書異常java.io.IOException: Alias name [cas] does not identify a key entry

問題

在搭建CAS server的過程中，Tomcat開啓https，配置祕鑰證書，證書是通過keytool生成的

        <Connector port="18443" protocol="org.apache.coyote.http11.Http11NioProtocol"
                connectionTimeout="20000" 
                maxThreads="150" SSLEnabled="true" 
                scheme="https" secure="true" 
                clientAuth="false" sslProtocol="TLS" 
                keystoreFile="/etc/cas/thekeystore" keystorePass="changeit" 
        />

啓動tamcat後，提示如下報錯

java.io.IOException: Alias name [cas] does not identify a key entry
java.lang.IllegalArgumentException: java.io.IOException: Alias name [null] does not identify a key entry
        at org.apache.tomcat.util.net.AbstractJsseEndpoint.createSSLContext(AbstractJsseEndpoint.java:115)
        at org.apache.tomcat.util.net.AbstractJsseEndpoint.initialiseSsl(AbstractJsseEndpoint.java:86)
        at org.apache.tomcat.util.net.NioEndpoint.bind(NioEndpoint.java:225)
        at org.apache.tomcat.util.net.AbstractEndpoint.init(AbstractEndpoint.java:982)
        at org.apache.tomcat.util.net.AbstractJsseEndpoint.init(AbstractJsseEndpoint.java:245)
        at org.apache.coyote.AbstractProtocol.init(AbstractProtocol.java:620)
        at org.apache.coyote.http11.AbstractHttp11Protocol.init(AbstractHttp11Protocol.java:66)
        at org.apache.catalina.connector.Connector.initInternal(Connector.java:997)
        at org.apache.catalina.util.LifecycleBase.init(LifecycleBase.java:107)
        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:621)
        at org.apache.catalina.startup.Catalina.load(Catalina.java:644)
        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:311)
        at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:494)
Caused by: java.io.IOException: Alias name [null] does not identify a key entry
        at org.apache.tomcat.util.net.jsse.JSSEUtil.getKeyManagers(JSSEUtil.java:237)
        at org.apache.tomcat.util.net.AbstractJsseEndpoint.createSSLContext(AbstractJsseEndpoint.java:113)
        ... 20 more

15-Jan-2018 16:54:55.884 嚴重 [main] org.apache.catalina.core.StandardService.initInternal Failed to initialize connector [Connector[HTTP/1.1-18443]]
 org.apache.catalina.LifecycleException: Failed to initialize component [Connector[HTTP/1.1-18443]]
        at org.apache.catalina.util.LifecycleBase.init(LifecycleBase.java:113)
        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:621)
        at org.apache.catalina.startup.Catalina.load(Catalina.java:644)
        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:311)
        at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:494)
Caused by: org.apache.catalina.LifecycleException: Protocol handler initialization failed
        at org.apache.catalina.connector.Connector.initInternal(Connector.java:1000)
        at org.apache.catalina.util.LifecycleBase.init(LifecycleBase.java:107)
        ... 12 more
Caused by: java.lang.IllegalArgumentException: java.io.IOException: Alias name [null] does not identify a key entry
        at org.apache.tomcat.util.net.AbstractJsseEndpoint.createSSLContext(AbstractJsseEndpoint.java:115)
        at org.apache.tomcat.util.net.AbstractJsseEndpoint.initialiseSsl(AbstractJsseEndpoint.java:86)
        at org.apache.tomcat.util.net.NioEndpoint.bind(NioEndpoint.java:225)
        at org.apache.tomcat.util.net.AbstractEndpoint.init(AbstractEndpoint.java:982)
        at org.apache.tomcat.util.net.AbstractJsseEndpoint.init(AbstractJsseEndpoint.java:245)
        at org.apache.coyote.AbstractProtocol.init(AbstractProtocol.java:620)
        at org.apache.coyote.http11.AbstractHttp11Protocol.init(AbstractHttp11Protocol.java:66)
        at org.apache.catalina.connector.Connector.initInternal(Connector.java:997)
        ... 13 more
Caused by: java.io.IOException: Alias name [null] does not identify a key entry
        at org.apache.tomcat.util.net.jsse.JSSEUtil.getKeyManagers(JSSEUtil.java:237)
        at org.apache.tomcat.util.net.AbstractJsseEndpoint.createSSLContext(AbstractJsseEndpoint.java:113)
        ... 20 more

分析

實際測試的過程中，有操作將祕鑰（證書）庫文件thekeystore的私鑰刪除了，並且把公鑰導入在了裏邊。

解決

重新生成祕鑰，並且通過

keytool -list -keystore thekeystore 

檢查祕鑰的類型，是PrivateKeyEntry就正常了。

• PrivateKeyEntry，爲私鑰，配置在tomcat的server.xml（CAS服務端）
• trustedCertEntry，爲公鑰，配置在jdk（應用服務端）
  

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