在Tomcat6启动期间，catalina日志显示以下输出，看起来它正在尝试为JDBC启用SSL。这种情况以前没有发生，并且突然开始看到这个输出。我不记得改变了环境中的任何东西。 知道为什么Tomcat尝试为JDBC启用SSL吗？ Tomcat正在使用JRE6。
Oct 11, 2016 10:18:26 AM com.microsoft.sqlserver.jdbc.TDSChannel enableSSL
INFO: java.security path: C:\Program Files\Java\jre6\lib\security
Security providers: [SUN version 1.6, SunRsaSign version 1.5, SunJSSE version 1.6, SunJCE version 1.6, SunJGSS version 1.0, SunSASL version 1.5, XMLDSig version 1.0, SunPCSC version 1.6, SunMSCAPI version 1.6]
SSLContext provider info: Sun JSSE provider(PKCS12, SunX509 key/trust factories, SSLv3, TLSv1)
SSLContext provider services:
[SunJSSE: KeyFactory.RSA -> sun.security.rsa.RSAKeyFactory
aliases: [1.2.840.113549.1.1, OID.1.2.840.113549.1.1]
, SunJSSE: KeyPairGenerator.RSA -> sun.security.rsa.RSAKeyPairGenerator
aliases: [1.2.840.113549.1.1, OID.1.2.840.113549.1.1]
, SunJSSE: Signature.MD2withRSA -> sun.security.rsa.RSASignature$MD2withRSA
aliases: [1.2.840.113549.1.1.2, OID.1.2.840.113549.1.1.2]
, SunJSSE: Signature.MD5withRSA -> sun.security.rsa.RSASignature$MD5withRSA
aliases: [1.2.840.113549.1.1.4, OID.1.2.840.113549.1.1.4]
, SunJSSE: Signature.SHA1withRSA -> sun.security.rsa.RSASignature$SHA1withRSA
aliases: [1.2.840.113549.1.1.5, OID.1.2.840.113549.1.1.5, 1.3.14.3.2.29, OID.1.3.14.3.2.29]
, SunJSSE: Signature.MD5andSHA1withRSA -> com.sun.net.ssl.internal.ssl.RSASignature
, SunJSSE: KeyManagerFactory.SunX509 -> com.sun.net.ssl.internal.ssl.KeyManagerFactoryImpl$SunX509
, SunJSSE: KeyManagerFactory.NewSunX509 -> com.sun.net.ssl.internal.ssl.KeyManagerFactoryImpl$X509
, SunJSSE: TrustManagerFactory.SunX509 -> com.sun.net.ssl.internal.ssl.TrustManagerFactoryImpl$SimpleFactory
, SunJSSE: TrustManagerFactory.PKIX -> com.sun.net.ssl.internal.ssl.TrustManagerFactoryImpl$PKIXFactory
aliases: [SunPKIX, X509, X.509]
, SunJSSE: SSLContext.SSL -> com.sun.net.ssl.internal.ssl.SSLContextImpl
, SunJSSE: SSLContext.SSLv3 -> com.sun.net.ssl.internal.ssl.SSLContextImpl
, SunJSSE: SSLContext.TLS -> com.sun.net.ssl.internal.ssl.SSLContextImpl
, SunJSSE: SSLContext.TLSv1 -> com.sun.net.ssl.internal.ssl.SSLContextImpl
, SunJSSE: SSLContext.Default -> com.sun.net.ssl.internal.ssl.DefaultSSLContextImpl
, SunJSSE: KeyStore.PKCS12 -> com.sun.net.ssl.internal.pkcs12.PKCS12KeyStore
]
java.ext.dirs: C:\Program Files\Java\jre6\lib\ext;C:\Windows\Sun\Java\lib\ext
还有一个与连接池初始化相关的警告
Oct 11, 2016 10:18:26 AM org.apache.naming.NamingContext lookup
WARNING: Unexpected exception resolving reference
org.apache.tomcat.dbcp.dbcp.SQLNestedException: Error preloading the connection pool
at org.apache.tomcat.dbcp.dbcp.BasicDataSource.createDataSource(BasicDataSource.java:1398)
at org.apache.tomcat.dbcp.dbcp.BasicDataSource.getLogWriter(BasicDataSource.java:1098)
at org.apache.tomcat.dbcp.dbcp.BasicDataSourceFactory.createDataSource(BasicDataSourceFactory.java:350)
at org.apache.tomcat.dbcp.dbcp.BasicDataSourceFactory.getObjectInstance(BasicDataSourceFactory.java:156)
at org.moss.jdj.dbcp.EncryptedDataSourceFactory.getObjectInstance(EncryptedDataSourceFactory.java:25)
............
at java.lang.reflect.Method.invoke(Unknown Source)
at org.apache.catalina.startup.Bootstrap.start(Bootstrap.java:289)
at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:414)
Caused by: com.microsoft.sqlserver.jdbc.SQLServerException: The driver could not establish a secure connection to SQL Server by using Secure Sockets Layer (SSL) encryption. Error: "SQL Server returned an incomplete response. The connection has been closed.".
at com.microsoft.sqlserver.jdbc.SQLServerConnection.terminate(SQLServerConnection.java:1352)
at com.microsoft.sqlserver.jdbc.TDSChannel.enableSSL(IOBuffer.java:1533)
at com.microsoft.sqlserver.jdbc.SQLServerConnection.connectHelper(SQLServerConnection.java:1042)
at com.microsoft.sqlserver.jdbc.SQLServerConnection.login(SQLServerConnection.java:817)
at com.microsoft.sqlserver.jdbc.SQLServerConnection.connect(SQLServerConnection.java:700)
at com.microsoft.sqlserver.jdbc.SQLServerDriver.connect(SQLServerDriver.java:842)
at org.apache.tomcat.dbcp.dbcp.DriverConnectionFactory.createConnection(DriverConnectionFactory.java:38)
at org.apache.tomcat.dbcp.dbcp.PoolableConnectionFactory.makeObject(PoolableConnectionFactory.java:582)
at org.apache.tomcat.dbcp.pool.impl.GenericObjectPool.addObject(GenericObjectPool.java:1617)
at org.apache.tomcat.dbcp.dbcp.BasicDataSource.createDataSource(BasicDataSource.java:1395)
... 37 more
Caused by: java.io.IOException: SQL Server returned an incomplete response. The connection has been closed.
at com.microsoft.sqlserver.jdbc.TDSChannel$SSLHandshakeInputStream.ensureSSLPayload(IOBuffer.java:607)
at com.microsoft.sqlserver.jdbc.TDSChannel$SSLHandshakeInputStream.readInternal(IOBuffer.java:664)
at com.microsoft.sqlserver.jdbc.TDSChannel$SSLHandshakeInputStream.read(IOBuffer.java:656)
at com.microsoft.sqlserver.jdbc.TDSChannel$ProxyInputStream.readInternal(IOBuffer.java:851)
at com.microsoft.sqlserver.jdbc.TDSChannel$ProxyInputStream.read(IOBuffer.java:839)
at com.sun.net.ssl.internal.ssl.InputRecord.readFully(Unknown Source)
at com.sun.net.ssl.internal.ssl.InputRecord.read(Unknown Source)
at com.sun.net.ssl.internal.ssl.SSLSocketImpl.readRecord(Unknown Source)
at com.sun.net.ssl.internal.ssl.SSLSocketImpl.performInitialHandshake(Unknown Source)
at com.sun.net.ssl.internal.ssl.SSLSocketImpl.startHandshake(Unknown Source)
at com.sun.net.ssl.internal.ssl.SSLSocketImpl.startHandshake(Unknown Source)
at com.microsoft.sqlserver.jdbc.TDSChannel.enableSSL(IOBuffer.java:1483)
... 45 more