Exception in thread "main" org.springframework.jdbc.CannotGetJdbcConnectionException: Failed to obtain JDBC Connection; nested exception is com.mysql.cj.jdbc.exceptions.CommunicationsException: Communications link failure The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server. at org.springframework.jdbc.datasource.DataSourceUtils.getConnection(DataSourceUtils.java:83) at org.springframework.jdbc.core.JdbcTemplate.execute(JdbcTemplate.java:376) at org.springframework.jdbc.core.JdbcTemplate.execute(JdbcTemplate.java:431) at com.xyj.test.JdbcTemplateTest.main(JdbcTemplateTest.java:16) Caused by: com.mysql.cj.jdbc.exceptions.CommunicationsException: Communications link failure The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server. at com.mysql.cj.jdbc.exceptions.SQLError.createCommunicationsException(SQLError.java:172) at com.mysql.cj.jdbc.exceptions.SQLExceptionsMapping.translateException(SQLExceptionsMapping.java:64) at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:862) at com.mysql.cj.jdbc.ConnectionImpl.(ConnectionImpl.java:444) at com.mysql.cj.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:230) at com.mysql.cj.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:226) at java.sql.DriverManager.getConnection(DriverManager.java:664) at java.sql.DriverManager.getConnection(DriverManager.java:208) at org.springframework.jdbc.datasource.DriverManagerDataSource.getConnectionFromDriverManager(DriverManagerDataSource.java:155) at org.springframework.jdbc.datasource.DriverManagerDataSource.getConnectionFromDriver(DriverManagerDataSource.java:146) at org.springframework.jdbc.datasource.AbstractDriverbasedDataSource.getConnectionFromDriver(AbstractDriverbasedDataSource.java:205) at org.springframework.jdbc.datasource.AbstractDriverbasedDataSource.getConnection(AbstractDriverbasedDataSource.java:169) at org.springframework.jdbc.datasource.DataSourceUtils.fetchConnection(DataSourceUtils.java:159) at org.springframework.jdbc.datasource.DataSourceUtils.doGetConnection(DataSourceUtils.java:117) at org.springframework.jdbc.datasource.DataSourceUtils.getConnection(DataSourceUtils.java:80) ... 3 more Caused by: com.mysql.cj.exceptions.CJCommunicationsException: Communications link failure The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server. at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method) at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62) at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45) at java.lang.reflect.Constructor.newInstance(Constructor.java:423) at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:59) at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:103) at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:149) at com.mysql.cj.exceptions.ExceptionFactory.createCommunicationsException(ExceptionFactory.java:165) at com.mysql.cj.protocol.a.NativeProtocol.negotiateSSLConnection(NativeProtocol.java:355) at com.mysql.cj.protocol.a.NativeAuthenticationProvider.negotiateSSLConnection(NativeAuthenticationProvider.java:789) at com.mysql.cj.protocol.a.NativeAuthenticationProvider.proceedHandshakeWithPluggableAuthentication(NativeAuthenticationProvider.java:499) at com.mysql.cj.protocol.a.NativeAuthenticationProvider.connect(NativeAuthenticationProvider.java:217) at com.mysql.cj.protocol.a.NativeProtocol.connect(NativeProtocol.java:1411) at com.mysql.cj.NativeSession.connect(NativeSession.java:165) at com.mysql.cj.jdbc.ConnectionImpl.connectOneTryOnly(ConnectionImpl.java:982) at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:852) ... 15 more Caused by: javax.net.ssl.SSLHandshakeException: java.security.cert.CertificateException: java.security.cert.CertPathValidatorException: Path does not chain with any of the trust anchors at sun.security.ssl.alert.createSSLException(alert.java:131) at sun.security.ssl.TransportContext.fatal(TransportContext.java:370) at sun.security.ssl.TransportContext.fatal(TransportContext.java:313) at sun.security.ssl.TransportContext.fatal(TransportContext.java:308) at sun.security.ssl.CertificateMessage$T12CertificateConsumer.checkServerCerts(CertificateMessage.java:652) at sun.security.ssl.CertificateMessage$T12CertificateConsumer.onCertificate(CertificateMessage.java:471) at sun.security.ssl.CertificateMessage$T12CertificateConsumer.consume(CertificateMessage.java:367) at sun.security.ssl.SSLHandshake.consume(SSLHandshake.java:376) at sun.security.ssl.HandshakeContext.dispatch(HandshakeContext.java:479) at sun.security.ssl.HandshakeContext.dispatch(HandshakeContext.java:457) at sun.security.ssl.TransportContext.dispatch(TransportContext.java:200) at sun.security.ssl.SSLTransport.decode(SSLTransport.java:154) at sun.security.ssl.SSLSocketImpl.decode(SSLSocketImpl.java:1290) at sun.security.ssl.SSLSocketImpl.readHandshakeRecord(SSLSocketImpl.java:1199) at sun.security.ssl.SSLSocketImpl.startHandshake(SSLSocketImpl.java:401) at sun.security.ssl.SSLSocketImpl.startHandshake(SSLSocketImpl.java:373) at com.mysql.cj.protocol.ExportControlled.performTlsHandshake(ExportControlled.java:213) at com.mysql.cj.protocol.StandardSocketFactory.performTlsHandshake(StandardSocketFactory.java:206) at com.mysql.cj.protocol.a.NativeSocketConnection.performTlsHandshake(NativeSocketConnection.java:99) at com.mysql.cj.protocol.a.NativeProtocol.negotiateSSLConnection(NativeProtocol.java:350) ... 22 more Caused by: java.security.cert.CertificateException: java.security.cert.CertPathValidatorException: Path does not chain with any of the trust anchors at com.mysql.cj.protocol.ExportControlled$X509TrustManagerWrapper.checkServerTrusted(ExportControlled.java:280) at sun.security.ssl.AbstractTrustManagerWrapper.checkServerTrusted(SSLContextImpl.java:1255) at sun.security.ssl.CertificateMessage$T12CertificateConsumer.checkServerCerts(CertificateMessage.java:636) ... 37 more Caused by: java.security.cert.CertPathValidatorException: Path does not chain with any of the trust anchors at sun.security.provider.certpath.PKIXCertPathValidator.validate(PKIXCertPathValidator.java:158) at sun.security.provider.certpath.PKIXCertPathValidator.enginevalidate(PKIXCertPathValidator.java:84) at java.security.cert.CertPathValidator.validate(CertPathValidator.java:292) at com.mysql.cj.protocol.ExportControlled$X509TrustManagerWrapper.checkServerTrusted(ExportControlled.java:273) ... 39 more Process finished with exit code 1
在pom文件种增加：
org.springframework spring-jdbc5.3.12
