异常如下：

  1. Exception in thread "pool-3-thread-2" org.mybatis.spring.MyBatisSystemException: nested exception is org.apache.ibatis.exceptions.PersistenceException:
  2. ### Error updating database. Cause: org.springframework.jdbc.CannotGetJdbcConnectionException: Failed to obtain JDBC Connection; nested exception is com.mysql.jdbc.exceptions.jdbc4.CommunicationsException: Communications link failure
  3. The last packet successfully received from the server was 1,610 milliseconds ago. The last packet sent successfully to the server was 1,583 milliseconds ago.
  4. ### Cause: org.springframework.jdbc.CannotGetJdbcConnectionException: Failed to obtain JDBC Connection; nested exception is com.mysql.jdbc.exceptions.jdbc4.CommunicationsException: Communications link failure
  5. The last packet successfully received from the server was 1,610 milliseconds ago. The last packet sent successfully to the server was 1,583 milliseconds ago.
  6. at org.mybatis.spring.MyBatisExceptionTranslator.translateExceptionIfPossible(MyBatisExceptionTranslator.java:77)
  7. at org.mybatis.spring.SqlSessionTemplate$SqlSessionInterceptor.invoke(SqlSessionTemplate.java:446)
  8. at com.sun.proxy.$Proxy59.insert(Unknown Source)
  9. at org.mybatis.spring.SqlSessionTemplate.insert(SqlSessionTemplate.java:278)
  10. at org.apache.ibatis.binding.MapperMethod.execute(MapperMethod.java:58)
  11. at org.apache.ibatis.binding.MapperProxy.invoke(MapperProxy.java:59)
  12. at com.sun.proxy.$Proxy68.insertSelectiveList(Unknown Source)
  13. at com.gwd.movie.service.impl.AnalyzeMovieHtmlServiceImpl.getView(AnalyzeMovieHtmlServiceImpl.java:111)
  14. at com.gwd.movie.service.impl.AnalyzeMovieHtmlServiceImpl.getDoc(AnalyzeMovieHtmlServiceImpl.java:127)
  15. at com.gwd.movie.service.impl.AnalyzeMovieHtmlServiceImpl.getTitleDetailUrl(AnalyzeMovieHtmlServiceImpl.java:214)
  16. at com.gwd.movie.service.impl.AnalyzeMovieHtmlServiceImpl$1.run(AnalyzeMovieHtmlServiceImpl.java:189)
  17. at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
  18. at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
  19. at java.lang.Thread.run(Unknown Source)
  20. Caused by: org.apache.ibatis.exceptions.PersistenceException:
  21. ### Error updating database. Cause: org.springframework.jdbc.CannotGetJdbcConnectionException: Failed to obtain JDBC Connection; nested exception is com.mysql.jdbc.exceptions.jdbc4.CommunicationsException: Communications link failure
  22. The last packet successfully received from the server was 1,610 milliseconds ago. The last packet sent successfully to the server was 1,583 milliseconds ago.
  23. ### Cause: org.springframework.jdbc.CannotGetJdbcConnectionException: Failed to obtain JDBC Connection; nested exception is com.mysql.jdbc.exceptions.jdbc4.CommunicationsException: Communications link failure
  24. The last packet successfully received from the server was 1,610 milliseconds ago. The last packet sent successfully to the server was 1,583 milliseconds ago.
  25. at org.apache.ibatis.exceptions.ExceptionFactory.wrapException(ExceptionFactory.java:30)
  26. at org.apache.ibatis.session.defaults.DefaultSqlSession.update(DefaultSqlSession.java:200)
  27. at org.apache.ibatis.session.defaults.DefaultSqlSession.insert(DefaultSqlSession.java:185)
  28. at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
  29. at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
  30. at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
  31. at java.lang.reflect.Method.invoke(Unknown Source)
  32. at org.mybatis.spring.SqlSessionTemplate$SqlSessionInterceptor.invoke(SqlSessionTemplate.java:433)
  33. ... 12 more
  34. Caused by: org.springframework.jdbc.CannotGetJdbcConnectionException: Failed to obtain JDBC Connection; nested exception is com.mysql.jdbc.exceptions.jdbc4.CommunicationsException: Communications link failure
  35. The last packet successfully received from the server was 1,610 milliseconds ago. The last packet sent successfully to the server was 1,583 milliseconds ago.
  36. at org.springframework.jdbc.datasource.DataSourceUtils.getConnection(DataSourceUtils.java:81)
  37. at org.mybatis.spring.transaction.SpringManagedTransaction.openConnection(SpringManagedTransaction.java:82)
  38. at org.mybatis.spring.transaction.SpringManagedTransaction.getConnection(SpringManagedTransaction.java:68)
  39. at org.apache.ibatis.executor.BaseExecutor.getConnection(BaseExecutor.java:338)
  40. at org.apache.ibatis.executor.SimpleExecutor.prepareStatement(SimpleExecutor.java:84)
  41. at org.apache.ibatis.executor.SimpleExecutor.doUpdate(SimpleExecutor.java:49)
  42. at org.apache.ibatis.executor.BaseExecutor.update(BaseExecutor.java:117)
  43. at org.apache.ibatis.executor.CachingExecutor.update(CachingExecutor.java:76)
  44. at org.apache.ibatis.session.defaults.DefaultSqlSession.update(DefaultSqlSession.java:198)
  45. ... 18 more
  46. Caused by: com.mysql.jdbc.exceptions.jdbc4.CommunicationsException: Communications link failure
  47. The last packet successfully received from the server was 1,610 milliseconds ago. The last packet sent successfully to the server was 1,583 milliseconds ago.
  48. at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
  49. at sun.reflect.NativeConstructorAccessorImpl.newInstance(Unknown Source)
  50. at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(Unknown Source)
  51. at java.lang.reflect.Constructor.newInstance(Unknown Source)
  52. at com.mysql.jdbc.Util.handleNewInstance(Util.java:425)
  53. at com.mysql.jdbc.SQLError.createCommunicationsException(SQLError.java:990)
  54. at com.mysql.jdbc.ExportControlled.transformSocketToSSLSocket(ExportControlled.java:201)
  55. at com.mysql.jdbc.MysqlIO.negotiateSSLConnection(MysqlIO.java:4914)
  56. at com.mysql.jdbc.MysqlIO.proceedHandshakeWithPluggableAuthentication(MysqlIO.java:1663)
  57. at com.mysql.jdbc.MysqlIO.doHandshake(MysqlIO.java:1224)
  58. at com.mysql.jdbc.ConnectionImpl.coreConnect(ConnectionImpl.java:2199)
  59. at com.mysql.jdbc.ConnectionImpl.connectOneTryOnly(ConnectionImpl.java:2230)
  60. at com.mysql.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:2025)
  61. at com.mysql.jdbc.ConnectionImpl.<init>(ConnectionImpl.java:778)
  62. at com.mysql.jdbc.JDBC4Connection.<init>(JDBC4Connection.java:47)
  63. at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
  64. at sun.reflect.NativeConstructorAccessorImpl.newInstance(Unknown Source)
  65. at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(Unknown Source)
  66. at java.lang.reflect.Constructor.newInstance(Unknown Source)
  67. at com.mysql.jdbc.Util.handleNewInstance(Util.java:425)
  68. at com.mysql.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:386)
  69. at com.mysql.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:330)
  70. at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1408)
  71. at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1464)
  72. at com.alibaba.druid.pool.DruidDataSource.init(DruidDataSource.java:684)
  73. at com.alibaba.druid.pool.DruidDataSource.getConnection(DruidDataSource.java:991)
  74. at com.alibaba.druid.pool.DruidDataSource.getConnection(DruidDataSource.java:987)
  75. at com.alibaba.druid.pool.DruidDataSource.getConnection(DruidDataSource.java:103)
  76. at org.springframework.jdbc.datasource.DataSourceUtils.fetchConnection(DataSourceUtils.java:151)
  77. at org.springframework.jdbc.datasource.DataSourceUtils.doGetConnection(DataSourceUtils.java:115)
  78. at org.springframework.jdbc.datasource.DataSourceUtils.getConnection(DataSourceUtils.java:78)
  79. ... 26 more
  80. Caused by: javax.net.ssl.SSLException: java.lang.SecurityException: JCE cannot authenticate the provider SunJCE
  81. at sun.security.ssl.Alerts.getSSLException(Unknown Source)
  82. at sun.security.ssl.SSLSocketImpl.fatal(Unknown Source)
  83. at sun.security.ssl.SSLSocketImpl.fatal(Unknown Source)
  84. at sun.security.ssl.SSLSocketImpl.handleException(Unknown Source)
  85. at sun.security.ssl.SSLSocketImpl.startHandshake(Unknown Source)
  86. at sun.security.ssl.SSLSocketImpl.startHandshake(Unknown Source)
  87. at com.mysql.jdbc.ExportControlled.transformSocketToSSLSocket(ExportControlled.java:186)
  88. ... 50 more
  89. Caused by: java.lang.SecurityException: JCE cannot authenticate the provider SunJCE
  90. at javax.crypto.Cipher.getInstance(Cipher.java:657)
  91. at java.security.Signature$Delegate.newInstance(Unknown Source)
  92. at java.security.Signature$Delegate.chooseProvider(Unknown Source)
  93. at java.security.Signature$Delegate.engineInitVerify(Unknown Source)
  94. at java.security.Signature.initVerify(Unknown Source)
  95. at sun.security.ssl.RSASignature.engineInitVerify(Unknown Source)
  96. at java.security.Signature$Delegate.init(Unknown Source)
  97. at java.security.Signature$Delegate.chooseProvider(Unknown Source)
  98. at java.security.Signature$Delegate.engineInitVerify(Unknown Source)
  99. at java.security.Signature.initVerify(Unknown Source)
  100. at sun.security.ssl.HandshakeMessage$DH_ServerKeyExchange.<init>(Unknown Source)
  101. at sun.security.ssl.ClientHandshaker.processMessage(Unknown Source)
  102. at sun.security.ssl.Handshaker.processLoop(Unknown Source)
  103. at sun.security.ssl.Handshaker.process_record(Unknown Source)
  104. at sun.security.ssl.SSLSocketImpl.readRecord(Unknown Source)
  105. at sun.security.ssl.SSLSocketImpl.performInitialHandshake(Unknown Source)
  106. ... 53 more
  107. Caused by: java.util.jar.JarException: Class is on the bootclasspath
  108. at javax.crypto.JarVerifier.verify(JarVerifier.java:286)
  109. at javax.crypto.JceSecurity.verifyProviderJar(JceSecurity.java:164)
  110. at javax.crypto.JceSecurity.getVerificationResult(JceSecurity.java:190)
  111. at javax.crypto.Cipher.getInstance(Cipher.java:653)
  112. ... 68 more
  113. Sun Oct 21 16:25:41 CST 2018 WARN: Establishing SSL connection without server's identity verification is not recommended. According to MySQL 5.5.45+, 5.6.26+ and 5.7.6+ requirements SSL connection must be established by default if explicit option isn't set. For compliance with existing applications not using SSL the verifyServerCertificate property is set to 'false'. You need either to explicitly disable SSL by setting useSSL=false, or set useSSL=true and provide truststore for server certificate verification.
  114. Sun Oct 21 16:25:42 CST 2018 WARN: Establishing SSL connection without server's identity verification is not recommended. According to MySQL 5.5.45+, 5.6.26+ and 5.7.6+ requirements SSL connection must be established by default if explicit option isn't set. For compliance with existing applications not using SSL the verifyServerCertificate property is set to 'false'. You need either to explicitly disable SSL by setting useSSL=false, or set useSSL=true and provide truststore for server certificate verification.
  115. Sun Oct 21 16:25:42 CST 2018 WARN: Establishing SSL connection without server's identity verification is not recommended. According to MySQL 5.5.45+, 5.6.26+ and 5.7.6+ requirements SSL connection must be established by default if explicit option isn't set. For compliance with existing applications not using SSL the verifyServerCertificate property is set to 'false'. You need either to explicitly disable SSL by setting useSSL=false, or set useSSL=true and provide truststore for server certificate verification.
  116. Sun Oct 21 16:25:42 CST 2018 WARN: Establishing SSL connection without server's identity verification is not recommended. According to MySQL 5.5.45+, 5.6.26+ and 5.7.6+ requirements SSL connection must be established by default if explicit option isn't set. For compliance with existing applications not using SSL the verifyServerCertificate property is set to 'false'. You need either to explicitly disable SSL by setting useSSL=false, or set useSSL=true and provide truststore for server certificate verification.

解决方案：

原

spring.datasource.url=jdbc:mysql://xx.xx.xx.xx/XX?characterEncoding=UTF-8

加上&useSSL=false

spring.datasource.url=jdbc:mysql:/xx.xx.xx.xx/XX?characterEncoding=UTF-8&useSSL=false

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