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java.sql.SQLNonTransientConnectionException: Could not create connection to database server. Attempted reconnect 3 times. Giving up.

本文轉載自   查看原文   2020-02-05 11:15   10218    日常筆記/ java bug 
java.sql.SQLNonTransientConnectionException: Could not create connection to database server. Attempted reconnect 3 times. Giving up.
    at com.mysql.cj.jdbc.exceptions.SQLError.createSQLException(SQLError.java:108) ~[mysql-connector-java-8.0.11.jar:8.0.11]
    at com.mysql.cj.jdbc.exceptions.SQLError.createSQLException(SQLError.java:95) ~[mysql-connector-java-8.0.11.jar:8.0.11]
    at com.mysql.cj.jdbc.exceptions.SQLError.createSQLException(SQLError.java:87) ~[mysql-connector-java-8.0.11.jar:8.0.11]
    at com.mysql.cj.jdbc.exceptions.SQLError.createSQLException(SQLError.java:61) ~[mysql-connector-java-8.0.11.jar:8.0.11]
    at com.mysql.cj.jdbc.exceptions.SQLError.createSQLException(SQLError.java:71) ~[mysql-connector-java-8.0.11.jar:8.0.11]
    at com.mysql.cj.jdbc.ConnectionImpl.connectWithRetries(ConnectionImpl.java:932) ~[mysql-connector-java-8.0.11.jar:8.0.11]
    at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:857) ~[mysql-connector-java-8.0.11.jar:8.0.11]
    at com.mysql.cj.jdbc.ConnectionImpl.<init>(ConnectionImpl.java:444) ~[mysql-connector-java-8.0.11.jar:8.0.11]
    at com.mysql.cj.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:230) ~[mysql-connector-java-8.0.11.jar:8.0.11]
    at com.mysql.cj.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:226) ~[mysql-connector-java-8.0.11.jar:8.0.11]
    at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:148) ~[druid-1.0.16.jar:1.0.16]
    at com.alibaba.druid.filter.stat.StatFilter.connection_connect(StatFilter.java:211) ~[druid-1.0.16.jar:1.0.16]
    at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:142) ~[druid-1.0.16.jar:1.0.16]
    at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1388) ~[druid-1.0.16.jar:1.0.16]
    at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1442) ~[druid-1.0.16.jar:1.0.16]
    at com.alibaba.druid.pool.DruidDataSource.init(DruidDataSource.java:632) [druid-1.0.16.jar:1.0.16]
    at com.alibaba.druid.pool.DruidDataSource.getConnection(DruidDataSource.java:934) [druid-1.0.16.jar:1.0.16]
    at com.alibaba.druid.pool.DruidDataSource.getConnection(DruidDataSource.java:930) [druid-1.0.16.jar:1.0.16]
    at com.alibaba.druid.pool.DruidDataSource.getConnection(DruidDataSource.java:102) [druid-1.0.16.jar:1.0.16]
    at org.springframework.jdbc.datasource.DataSourceUtils.doGetConnection(DataSourceUtils.java:111) [spring-jdbc-4.2.6.RELEASE.jar:4.2.6.RELEASE]
    at org.springframework.jdbc.datasource.DataSourceUtils.getConnection(DataSourceUtils.java:77) [spring-jdbc-4.2.6.RELEASE.jar:4.2.6.RELEASE]
    at org.springframework.jdbc.core.JdbcTemplate.execute(JdbcTemplate.java:615) [spring-jdbc-4.2.6.RELEASE.jar:4.2.6.RELEASE]
    at org.springframework.jdbc.core.JdbcTemplate.query(JdbcTemplate.java:680) [spring-jdbc-4.2.6.RELEASE.jar:4.2.6.RELEASE]
    at org.springframework.jdbc.core.JdbcTemplate.query(JdbcTemplate.java:712) [spring-jdbc-4.2.6.RELEASE.jar:4.2.6.RELEASE]
    at org.springframework.jdbc.core.JdbcTemplate.query(JdbcTemplate.java:722) [spring-jdbc-4.2.6.RELEASE.jar:4.2.6.RELEASE]
    at org.springframework.jdbc.core.JdbcTemplate.query(JdbcTemplate.java:772) [spring-jdbc-4.2.6.RELEASE.jar:4.2.6.RELEASE]
    at net.yunxinyong.bbdgs.dao.impl.CompanyDaoImpl.findListByCode(CompanyDaoImpl.java:23) [classes/:?]
    at net.yunxinyong.bbdgs.job.NewsJob.loadData(NewsJob.java:36) [classes/:?]
    at net.yunxinyong.bbdgs.job.NewsJob.work(NewsJob.java:26) [classes/:?]
    at net.yunxinyong.bbdgs.Bbdgs_main.main(Bbdgs_main.java:18) [classes/:?]
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) ~[?:1.8.0_101]
    at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62) ~[?:1.8.0_101]
    at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45) ~[?:1.8.0_101]
    at java.lang.reflect.Constructor.newInstance(Constructor.java:423) ~[?:1.8.0_101]
    at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:59) ~[mysql-connector-java-8.0.11.jar:8.0.11]
    at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:103) ~[mysql-connector-java-8.0.11.jar:8.0.11]
    at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:149) ~[mysql-connector-java-8.0.11.jar:8.0.11]
    at com.mysql.cj.exceptions.ExceptionFactory.createCommunicationsException(ExceptionFactory.java:165) ~[mysql-connector-java-8.0.11.jar:8.0.11]
    at com.mysql.cj.protocol.a.NativeProtocol.negotiateSSLConnection(NativeProtocol.java:355) ~[mysql-connector-java-8.0.11.jar:8.0.11]
    at com.mysql.cj.protocol.a.NativeAuthenticationProvider.negotiateSSLConnection(NativeAuthenticationProvider.java:789) ~[mysql-connector-java-8.0.11.jar:8.0.11]
    at com.mysql.cj.protocol.a.NativeAuthenticationProvider.proceedHandshakeWithPluggableAuthentication(NativeAuthenticationProvider.java:499) ~[mysql-connector-java-8.0.11.jar:8.0.11]
    at com.mysql.cj.protocol.a.NativeAuthenticationProvider.connect(NativeAuthenticationProvider.java:217) ~[mysql-connector-java-8.0.11.jar:8.0.11]
    at com.mysql.cj.protocol.a.NativeProtocol.connect(NativeProtocol.java:1411) ~[mysql-connector-java-8.0.11.jar:8.0.11]
    at com.mysql.cj.NativeSession.connect(NativeSession.java:165) ~[mysql-connector-java-8.0.11.jar:8.0.11]
    at com.mysql.cj.jdbc.ConnectionImpl.connectWithRetries(ConnectionImpl.java:876) ~[mysql-connector-java-8.0.11.jar:8.0.11]
    ... 24 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.Alerts.getSSLException(Alerts.java:192) ~[?:1.8.0_101]
    at sun.security.ssl.SSLSocketImpl.fatal(SSLSocketImpl.java:1949) ~[?:1.8.0_101]
    at sun.security.ssl.Handshaker.fatalSE(Handshaker.java:302) ~[?:1.8.0_101]
    at sun.security.ssl.Handshaker.fatalSE(Handshaker.java:296) ~[?:1.8.0_101]
    at sun.security.ssl.ClientHandshaker.serverCertificate(ClientHandshaker.java:1509) ~[?:1.8.0_101]
    at sun.security.ssl.ClientHandshaker.processMessage(ClientHandshaker.java:216) ~[?:1.8.0_101]
    at sun.security.ssl.Handshaker.processLoop(Handshaker.java:979) ~[?:1.8.0_101]
    at sun.security.ssl.Handshaker.process_record(Handshaker.java:914) ~[?:1.8.0_101]
    at sun.security.ssl.SSLSocketImpl.readRecord(SSLSocketImpl.java:1062) ~[?:1.8.0_101]
    at sun.security.ssl.SSLSocketImpl.performInitialHandshake(SSLSocketImpl.java:1375) ~[?:1.8.0_101]
    at sun.security.ssl.SSLSocketImpl.startHandshake(SSLSocketImpl.java:1403) ~[?:1.8.0_101]
    at sun.security.ssl.SSLSocketImpl.startHandshake(SSLSocketImpl.java:1387) ~[?:1.8.0_101]
    at com.mysql.cj.protocol.ExportControlled.performTlsHandshake(ExportControlled.java:213) ~[mysql-connector-java-8.0.11.jar:8.0.11]
    at com.mysql.cj.protocol.StandardSocketFactory.performTlsHandshake(StandardSocketFactory.java:206) ~[mysql-connector-java-8.0.11.jar:8.0.11]
    at com.mysql.cj.protocol.a.NativeSocketConnection.performTlsHandshake(NativeSocketConnection.java:99) ~[mysql-connector-java-8.0.11.jar:8.0.11]
    at com.mysql.cj.protocol.a.NativeProtocol.negotiateSSLConnection(NativeProtocol.java:350) ~[mysql-connector-java-8.0.11.jar:8.0.11]
    at com.mysql.cj.protocol.a.NativeAuthenticationProvider.negotiateSSLConnection(NativeAuthenticationProvider.java:789) ~[mysql-connector-java-8.0.11.jar:8.0.11]
    at com.mysql.cj.protocol.a.NativeAuthenticationProvider.proceedHandshakeWithPluggableAuthentication(NativeAuthenticationProvider.java:499) ~[mysql-connector-java-8.0.11.jar:8.0.11]
    at com.mysql.cj.protocol.a.NativeAuthenticationProvider.connect(NativeAuthenticationProvider.java:217) ~[mysql-connector-java-8.0.11.jar:8.0.11]
    at com.mysql.cj.protocol.a.NativeProtocol.connect(NativeProtocol.java:1411) ~[mysql-connector-java-8.0.11.jar:8.0.11]
    at com.mysql.cj.NativeSession.connect(NativeSession.java:165) ~[mysql-connector-java-8.0.11.jar:8.0.11]
    at com.mysql.cj.jdbc.ConnectionImpl.connectWithRetries(ConnectionImpl.java:876) ~[mysql-connector-java-8.0.11.jar:8.0.11]
    ... 24 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) ~[mysql-connector-java-8.0.11.jar:8.0.11]
    at sun.security.ssl.AbstractTrustManagerWrapper.checkServerTrusted(SSLContextImpl.java:922) ~[?:1.8.0_101]
    at sun.security.ssl.ClientHandshaker.serverCertificate(ClientHandshaker.java:1491) ~[?:1.8.0_101]
    at sun.security.ssl.ClientHandshaker.processMessage(ClientHandshaker.java:216) ~[?:1.8.0_101]
    at sun.security.ssl.Handshaker.processLoop(Handshaker.java:979) ~[?:1.8.0_101]
    at sun.security.ssl.Handshaker.process_record(Handshaker.java:914) ~[?:1.8.0_101]
    at sun.security.ssl.SSLSocketImpl.readRecord(SSLSocketImpl.java:1062) ~[?:1.8.0_101]
    at sun.security.ssl.SSLSocketImpl.performInitialHandshake(SSLSocketImpl.java:1375) ~[?:1.8.0_101]
    at sun.security.ssl.SSLSocketImpl.startHandshake(SSLSocketImpl.java:1403) ~[?:1.8.0_101]
    at sun.security.ssl.SSLSocketImpl.startHandshake(SSLSocketImpl.java:1387) ~[?:1.8.0_101]
    at com.mysql.cj.protocol.ExportControlled.performTlsHandshake(ExportControlled.java:213) ~[mysql-connector-java-8.0.11.jar:8.0.11]
    at com.mysql.cj.protocol.StandardSocketFactory.performTlsHandshake(StandardSocketFactory.java:206) ~[mysql-connector-java-8.0.11.jar:8.0.11]
    at com.mysql.cj.protocol.a.NativeSocketConnection.performTlsHandshake(NativeSocketConnection.java:99) ~[mysql-connector-java-8.0.11.jar:8.0.11]
    at com.mysql.cj.protocol.a.NativeProtocol.negotiateSSLConnection(NativeProtocol.java:350) ~[mysql-connector-java-8.0.11.jar:8.0.11]
    at com.mysql.cj.protocol.a.NativeAuthenticationProvider.negotiateSSLConnection(NativeAuthenticationProvider.java:789) ~[mysql-connector-java-8.0.11.jar:8.0.11]
    at com.mysql.cj.protocol.a.NativeAuthenticationProvider.proceedHandshakeWithPluggableAuthentication(NativeAuthenticationProvider.java:499) ~[mysql-connector-java-8.0.11.jar:8.0.11]
    at com.mysql.cj.protocol.a.NativeAuthenticationProvider.connect(NativeAuthenticationProvider.java:217) ~[mysql-connector-java-8.0.11.jar:8.0.11]
    at com.mysql.cj.protocol.a.NativeProtocol.connect(NativeProtocol.java:1411) ~[mysql-connector-java-8.0.11.jar:8.0.11]
    at com.mysql.cj.NativeSession.connect(NativeSession.java:165) ~[mysql-connector-java-8.0.11.jar:8.0.11]
    at com.mysql.cj.jdbc.ConnectionImpl.connectWithRetries(ConnectionImpl.java:876) ~[mysql-connector-java-8.0.11.jar:8.0.11]
    ... 24 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:153) ~[?:1.8.0_101]
    at sun.security.provider.certpath.PKIXCertPathValidator.engineValidate(PKIXCertPathValidator.java:79) ~[?:1.8.0_101]
    at java.security.cert.CertPathValidator.validate(CertPathValidator.java:292) ~[?:1.8.0_101]
    at com.mysql.cj.protocol.ExportControlled$X509TrustManagerWrapper.checkServerTrusted(ExportControlled.java:273) ~[mysql-connector-java-8.0.11.jar:8.0.11]
    at sun.security.ssl.AbstractTrustManagerWrapper.checkServerTrusted(SSLContextImpl.java:922) ~[?:1.8.0_101]
    at sun.security.ssl.ClientHandshaker.serverCertificate(ClientHandshaker.java:1491) ~[?:1.8.0_101]
    at sun.security.ssl.ClientHandshaker.processMessage(ClientHandshaker.java:216) ~[?:1.8.0_101]
    at sun.security.ssl.Handshaker.processLoop(Handshaker.java:979) ~[?:1.8.0_101]
    at sun.security.ssl.Handshaker.process_record(Handshaker.java:914) ~[?:1.8.0_101]
    at sun.security.ssl.SSLSocketImpl.readRecord(SSLSocketImpl.java:1062) ~[?:1.8.0_101]
    at sun.security.ssl.SSLSocketImpl.performInitialHandshake(SSLSocketImpl.java:1375) ~[?:1.8.0_101]
    at sun.security.ssl.SSLSocketImpl.startHandshake(SSLSocketImpl.java:1403) ~[?:1.8.0_101]
    at sun.security.ssl.SSLSocketImpl.startHandshake(SSLSocketImpl.java:1387) ~[?:1.8.0_101]
    at com.mysql.cj.protocol.ExportControlled.performTlsHandshake(ExportControlled.java:213) ~[mysql-connector-java-8.0.11.jar:8.0.11]
    at com.mysql.cj.protocol.StandardSocketFactory.performTlsHandshake(StandardSocketFactory.java:206) ~[mysql-connector-java-8.0.11.jar:8.0.11]
    at com.mysql.cj.protocol.a.NativeSocketConnection.performTlsHandshake(NativeSocketConnection.java:99) ~[mysql-connector-java-8.0.11.jar:8.0.11]
    at com.mysql.cj.protocol.a.NativeProtocol.negotiateSSLConnection(NativeProtocol.java:350) ~[mysql-connector-java-8.0.11.jar:8.0.11]
    at com.mysql.cj.protocol.a.NativeAuthenticationProvider.negotiateSSLConnection(NativeAuthenticationProvider.java:789) ~[mysql-connector-java-8.0.11.jar:8.0.11]
    at com.mysql.cj.protocol.a.NativeAuthenticationProvider.proceedHandshakeWithPluggableAuthentication(NativeAuthenticationProvider.java:499) ~[mysql-connector-java-8.0.11.jar:8.0.11]
    at com.mysql.cj.protocol.a.NativeAuthenticationProvider.connect(NativeAuthenticationProvider.java:217) ~[mysql-connector-java-8.0.11.jar:8.0.11]
    at com.mysql.cj.protocol.a.NativeProtocol.connect(NativeProtocol.java:1411) ~[mysql-connector-java-8.0.11.jar:8.0.11]
    at com.mysql.cj.NativeSession.connect(NativeSession.java:165) ~[mysql-connector-java-8.0.11.jar:8.0.11]
    at com.mysql.cj.jdbc.ConnectionImpl.connectWithRetries(ConnectionImpl.java:876) ~[mysql-connector-java-8.0.11.jar:8.0.11]
    ... 24 more
[2020-02-05 11:03:33,755][main][ERROR][com.alibaba.druid.pool.DruidDataSource:53] dataSource init error
java.sql.SQLNonTransientConnectionException: Could not create connection to database server. Attempted reconnect 3 times. Giving up.
    at com.mysql.cj.jdbc.exceptions.SQLError.createSQLException(SQLError.java:108) ~[mysql-connector-java-8.0.11.jar:8.0.11]
    at com.mysql.cj.jdbc.exceptions.SQLError.createSQLException(SQLError.java:95) ~[mysql-connector-java-8.0.11.jar:8.0.11]
    at com.mysql.cj.jdbc.exceptions.SQLError.createSQLException(SQLError.java:87) ~[mysql-connector-java-8.0.11.jar:8.0.11]
    at com.mysql.cj.jdbc.exceptions.SQLError.createSQLException(SQLError.java:61) ~[mysql-connector-java-8.0.11.jar:8.0.11]
    at com.mysql.cj.jdbc.exceptions.SQLError.createSQLException(SQLError.java:71) ~[mysql-connector-java-8.0.11.jar:8.0.11]
    at com.mysql.cj.jdbc.ConnectionImpl.connectWithRetries(ConnectionImpl.java:932) ~[mysql-connector-java-8.0.11.jar:8.0.11]
    at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:857) ~[mysql-connector-java-8.0.11.jar:8.0.11]
    at com.mysql.cj.jdbc.ConnectionImpl.<init>(ConnectionImpl.java:444) ~[mysql-connector-java-8.0.11.jar:8.0.11]
    at com.mysql.cj.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:230) ~[mysql-connector-java-8.0.11.jar:8.0.11]
    at com.mysql.cj.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:226) ~[mysql-connector-java-8.0.11.jar:8.0.11]
    at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:148) ~[druid-1.0.16.jar:1.0.16]
    at com.alibaba.druid.filter.stat.StatFilter.connection_connect(StatFilter.java:211) ~[druid-1.0.16.jar:1.0.16]
    at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:142) ~[druid-1.0.16.jar:1.0.16]
    at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1388) ~[druid-1.0.16.jar:1.0.16]
    at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1442) ~[druid-1.0.16.jar:1.0.16]
    at com.alibaba.druid.pool.DruidDataSource.init(DruidDataSource.java:632) [druid-1.0.16.jar:1.0.16]
    at com.alibaba.druid.pool.DruidDataSource.getConnection(DruidDataSource.java:934) [druid-1.0.16.jar:1.0.16]
    at com.alibaba.druid.pool.DruidDataSource.getConnection(DruidDataSource.java:930) [druid-1.0.16.jar:1.0.16]
    at com.alibaba.druid.pool.DruidDataSource.getConnection(DruidDataSource.java:102) [druid-1.0.16.jar:1.0.16]
    at org.springframework.jdbc.datasource.DataSourceUtils.doGetConnection(DataSourceUtils.java:111) [spring-jdbc-4.2.6.RELEASE.jar:4.2.6.RELEASE]
    at org.springframework.jdbc.datasource.DataSourceUtils.getConnection(DataSourceUtils.java:77) [spring-jdbc-4.2.6.RELEASE.jar:4.2.6.RELEASE]
    at org.springframework.jdbc.core.JdbcTemplate.execute(JdbcTemplate.java:615) [spring-jdbc-4.2.6.RELEASE.jar:4.2.6.RELEASE]
    at org.springframework.jdbc.core.JdbcTemplate.query(JdbcTemplate.java:680) [spring-jdbc-4.2.6.RELEASE.jar:4.2.6.RELEASE]
    at org.springframework.jdbc.core.JdbcTemplate.query(JdbcTemplate.java:712) [spring-jdbc-4.2.6.RELEASE.jar:4.2.6.RELEASE]
    at org.springframework.jdbc.core.JdbcTemplate.query(JdbcTemplate.java:722) [spring-jdbc-4.2.6.RELEASE.jar:4.2.6.RELEASE]
    at org.springframework.jdbc.core.JdbcTemplate.query(JdbcTemplate.java:772) [spring-jdbc-4.2.6.RELEASE.jar:4.2.6.RELEASE]
    at net.yunxinyong.bbdgs.dao.impl.CompanyDaoImpl.findListByCode(CompanyDaoImpl.java:23) [classes/:?]
    at net.yunxinyong.bbdgs.job.NewsJob.loadData(NewsJob.java:36) [classes/:?]
    at net.yunxinyong.bbdgs.job.NewsJob.work(NewsJob.java:26) [classes/:?]
    at net.yunxinyong.bbdgs.Bbdgs_main.main(Bbdgs_main.java:18) [classes/:?]
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) ~[?:1.8.0_101]
    at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62) ~[?:1.8.0_101]
    at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45) ~[?:1.8.0_101]
    at java.lang.reflect.Constructor.newInstance(Constructor.java:423) ~[?:1.8.0_101]
    at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:59) ~[mysql-connector-java-8.0.11.jar:8.0.11]
    at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:103) ~[mysql-connector-java-8.0.11.jar:8.0.11]
    at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:149) ~[mysql-connector-java-8.0.11.jar:8.0.11]
    at com.mysql.cj.exceptions.ExceptionFactory.createCommunicationsException(ExceptionFactory.java:165) ~[mysql-connector-java-8.0.11.jar:8.0.11]
    at com.mysql.cj.protocol.a.NativeProtocol.negotiateSSLConnection(NativeProtocol.java:355) ~[mysql-connector-java-8.0.11.jar:8.0.11]
    at com.mysql.cj.protocol.a.NativeAuthenticationProvider.negotiateSSLConnection(NativeAuthenticationProvider.java:789) ~[mysql-connector-java-8.0.11.jar:8.0.11]
    at com.mysql.cj.protocol.a.NativeAuthenticationProvider.proceedHandshakeWithPluggableAuthentication(NativeAuthenticationProvider.java:499) ~[mysql-connector-java-8.0.11.jar:8.0.11]
    at com.mysql.cj.protocol.a.NativeAuthenticationProvider.connect(NativeAuthenticationProvider.java:217) ~[mysql-connector-java-8.0.11.jar:8.0.11]
    at com.mysql.cj.protocol.a.NativeProtocol.connect(NativeProtocol.java:1411) ~[mysql-connector-java-8.0.11.jar:8.0.11]
    at com.mysql.cj.NativeSession.connect(NativeSession.java:165) ~[mysql-connector-java-8.0.11.jar:8.0.11]
    at com.mysql.cj.jdbc.ConnectionImpl.connectWithRetries(ConnectionImpl.java:876) ~[mysql-connector-java-8.0.11.jar:8.0.11]
    ... 24 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.Alerts.getSSLException(Alerts.java:192) ~[?:1.8.0_101]
    at sun.security.ssl.SSLSocketImpl.fatal(SSLSocketImpl.java:1949) ~[?:1.8.0_101]
    at sun.security.ssl.Handshaker.fatalSE(Handshaker.java:302) ~[?:1.8.0_101]
    at sun.security.ssl.Handshaker.fatalSE(Handshaker.java:296) ~[?:1.8.0_101]
    at sun.security.ssl.ClientHandshaker.serverCertificate(ClientHandshaker.java:1509) ~[?:1.8.0_101]
    at sun.security.ssl.ClientHandshaker.processMessage(ClientHandshaker.java:216) ~[?:1.8.0_101]
    at sun.security.ssl.Handshaker.processLoop(Handshaker.java:979) ~[?:1.8.0_101]
    at sun.security.ssl.Handshaker.process_record(Handshaker.java:914) ~[?:1.8.0_101]
    at sun.security.ssl.SSLSocketImpl.readRecord(SSLSocketImpl.java:1062) ~[?:1.8.0_101]
    at sun.security.ssl.SSLSocketImpl.performInitialHandshake(SSLSocketImpl.java:1375) ~[?:1.8.0_101]
    at sun.security.ssl.SSLSocketImpl.startHandshake(SSLSocketImpl.java:1403) ~[?:1.8.0_101]
    at sun.security.ssl.SSLSocketImpl.startHandshake(SSLSocketImpl.java:1387) ~[?:1.8.0_101]
    at com.mysql.cj.protocol.ExportControlled.performTlsHandshake(ExportControlled.java:213) ~[mysql-connector-java-8.0.11.jar:8.0.11]
    at com.mysql.cj.protocol.StandardSocketFactory.performTlsHandshake(StandardSocketFactory.java:206) ~[mysql-connector-java-8.0.11.jar:8.0.11]
    at com.mysql.cj.protocol.a.NativeSocketConnection.performTlsHandshake(NativeSocketConnection.java:99) ~[mysql-connector-java-8.0.11.jar:8.0.11]
    at com.mysql.cj.protocol.a.NativeProtocol.negotiateSSLConnection(NativeProtocol.java:350) ~[mysql-connector-java-8.0.11.jar:8.0.11]
    at com.mysql.cj.protocol.a.NativeAuthenticationProvider.negotiateSSLConnection(NativeAuthenticationProvider.java:789) ~[mysql-connector-java-8.0.11.jar:8.0.11]
    at com.mysql.cj.protocol.a.NativeAuthenticationProvider.proceedHandshakeWithPluggableAuthentication(NativeAuthenticationProvider.java:499) ~[mysql-connector-java-8.0.11.jar:8.0.11]
    at com.mysql.cj.protocol.a.NativeAuthenticationProvider.connect(NativeAuthenticationProvider.java:217) ~[mysql-connector-java-8.0.11.jar:8.0.11]
    at com.mysql.cj.protocol.a.NativeProtocol.connect(NativeProtocol.java:1411) ~[mysql-connector-java-8.0.11.jar:8.0.11]
    at com.mysql.cj.NativeSession.connect(NativeSession.java:165) ~[mysql-connector-java-8.0.11.jar:8.0.11]
    at com.mysql.cj.jdbc.ConnectionImpl.connectWithRetries(ConnectionImpl.java:876) ~[mysql-connector-java-8.0.11.jar:8.0.11]
    ... 24 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) ~[mysql-connector-java-8.0.11.jar:8.0.11]
    at sun.security.ssl.AbstractTrustManagerWrapper.checkServerTrusted(SSLContextImpl.java:922) ~[?:1.8.0_101]
    at sun.security.ssl.ClientHandshaker.serverCertificate(ClientHandshaker.java:1491) ~[?:1.8.0_101]
    at sun.security.ssl.ClientHandshaker.processMessage(ClientHandshaker.java:216) ~[?:1.8.0_101]
    at sun.security.ssl.Handshaker.processLoop(Handshaker.java:979) ~[?:1.8.0_101]
    at sun.security.ssl.Handshaker.process_record(Handshaker.java:914) ~[?:1.8.0_101]
    at sun.security.ssl.SSLSocketImpl.readRecord(SSLSocketImpl.java:1062) ~[?:1.8.0_101]
    at sun.security.ssl.SSLSocketImpl.performInitialHandshake(SSLSocketImpl.java:1375) ~[?:1.8.0_101]
    at sun.security.ssl.SSLSocketImpl.startHandshake(SSLSocketImpl.java:1403) ~[?:1.8.0_101]
    at sun.security.ssl.SSLSocketImpl.startHandshake(SSLSocketImpl.java:1387) ~[?:1.8.0_101]
    at com.mysql.cj.protocol.ExportControlled.performTlsHandshake(ExportControlled.java:213) ~[mysql-connector-java-8.0.11.jar:8.0.11]
    at com.mysql.cj.protocol.StandardSocketFactory.performTlsHandshake(StandardSocketFactory.java:206) ~[mysql-connector-java-8.0.11.jar:8.0.11]
    at com.mysql.cj.protocol.a.NativeSocketConnection.performTlsHandshake(NativeSocketConnection.java:99) ~[mysql-connector-java-8.0.11.jar:8.0.11]
    at com.mysql.cj.protocol.a.NativeProtocol.negotiateSSLConnection(NativeProtocol.java:350) ~[mysql-connector-java-8.0.11.jar:8.0.11]
    at com.mysql.cj.protocol.a.NativeAuthenticationProvider.negotiateSSLConnection(NativeAuthenticationProvider.java:789) ~[mysql-connector-java-8.0.11.jar:8.0.11]
    at com.mysql.cj.protocol.a.NativeAuthenticationProvider.proceedHandshakeWithPluggableAuthentication(NativeAuthenticationProvider.java:499) ~[mysql-connector-java-8.0.11.jar:8.0.11]
    at com.mysql.cj.protocol.a.NativeAuthenticationProvider.connect(NativeAuthenticationProvider.java:217) ~[mysql-connector-java-8.0.11.jar:8.0.11]
    at com.mysql.cj.protocol.a.NativeProtocol.connect(NativeProtocol.java:1411) ~[mysql-connector-java-8.0.11.jar:8.0.11]
    at com.mysql.cj.NativeSession.connect(NativeSession.java:165) ~[mysql-connector-java-8.0.11.jar:8.0.11]
    at com.mysql.cj.jdbc.ConnectionImpl.connectWithRetries(ConnectionImpl.java:876) ~[mysql-connector-java-8.0.11.jar:8.0.11]
    ... 24 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:153) ~[?:1.8.0_101]
    at sun.security.provider.certpath.PKIXCertPathValidator.engineValidate(PKIXCertPathValidator.java:79) ~[?:1.8.0_101]
    at java.security.cert.CertPathValidator.validate(CertPathValidator.java:292) ~[?:1.8.0_101]
    at com.mysql.cj.protocol.ExportControlled$X509TrustManagerWrapper.checkServerTrusted(ExportControlled.java:273) ~[mysql-connector-java-8.0.11.jar:8.0.11]
    at sun.security.ssl.AbstractTrustManagerWrapper.checkServerTrusted(SSLContextImpl.java:922) ~[?:1.8.0_101]
    at sun.security.ssl.ClientHandshaker.serverCertificate(ClientHandshaker.java:1491) ~[?:1.8.0_101]
    at sun.security.ssl.ClientHandshaker.processMessage(ClientHandshaker.java:216) ~[?:1.8.0_101]
    at sun.security.ssl.Handshaker.processLoop(Handshaker.java:979) ~[?:1.8.0_101]
    at sun.security.ssl.Handshaker.process_record(Handshaker.java:914) ~[?:1.8.0_101]
    at sun.security.ssl.SSLSocketImpl.readRecord(SSLSocketImpl.java:1062) ~[?:1.8.0_101]
    at sun.security.ssl.SSLSocketImpl.performInitialHandshake(SSLSocketImpl.java:1375) ~[?:1.8.0_101]
    at sun.security.ssl.SSLSocketImpl.startHandshake(SSLSocketImpl.java:1403) ~[?:1.8.0_101]
    at sun.security.ssl.SSLSocketImpl.startHandshake(SSLSocketImpl.java:1387) ~[?:1.8.0_101]
    at com.mysql.cj.protocol.ExportControlled.performTlsHandshake(ExportControlled.java:213) ~[mysql-connector-java-8.0.11.jar:8.0.11]
    at com.mysql.cj.protocol.StandardSocketFactory.performTlsHandshake(StandardSocketFactory.java:206) ~[mysql-connector-java-8.0.11.jar:8.0.11]
    at com.mysql.cj.protocol.a.NativeSocketConnection.performTlsHandshake(NativeSocketConnection.java:99) ~[mysql-connector-java-8.0.11.jar:8.0.11]
    at com.mysql.cj.protocol.a.NativeProtocol.negotiateSSLConnection(NativeProtocol.java:350) ~[mysql-connector-java-8.0.11.jar:8.0.11]
    at com.mysql.cj.protocol.a.NativeAuthenticationProvider.negotiateSSLConnection(NativeAuthenticationProvider.java:789) ~[mysql-connector-java-8.0.11.jar:8.0.11]
    at com.mysql.cj.protocol.a.NativeAuthenticationProvider.proceedHandshakeWithPluggableAuthentication(NativeAuthenticationProvider.java:499) ~[mysql-connector-java-8.0.11.jar:8.0.11]
    at com.mysql.cj.protocol.a.NativeAuthenticationProvider.connect(NativeAuthenticationProvider.java:217) ~[mysql-connector-java-8.0.11.jar:8.0.11]
    at com.mysql.cj.protocol.a.NativeProtocol.connect(NativeProtocol.java:1411) ~[mysql-connector-java-8.0.11.jar:8.0.11]
    at com.mysql.cj.NativeSession.connect(NativeSession.java:165) ~[mysql-connector-java-8.0.11.jar:8.0.11]
    at com.mysql.cj.jdbc.ConnectionImpl.connectWithRetries(ConnectionImpl.java:876) ~[mysql-connector-java-8.0.11.jar:8.0.11]

  這個錯誤是在從svn上下載下來的項目。。原來的項目使用的mysql是5.幾的。現在的電腦上的mysql是8.幾的，剛開始報錯的數據庫連接錯誤，pom中把數據庫的驅動從5.1.47的改為8.0.11的之后，數據庫能連接上。可是啟動項目報上面的錯誤，清楚mysql是數據庫

 版本的問題，可是不能重新安裝數據庫吧，研究上面報的錯，發現是數據連接的url 有問題，改了好幾次沒有什么效果。直接把能啟動項目的url直接賦值過來就好了。。。很無語。。。。。不懂原理的痛。

把  

jdbc.url=jdbc:mysql://localhost:3306/news?autoReconnect=true&useUnicode=true&characterEncoding=utf8&useSSL=true

改為
jdbc.url=jdbc:mysql://localhost:3306/news?useUnicode=true&characterEncoding=utf8&useSSL=false&serverTimezone=CTT


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