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When installing the application on the customer’s site, the application failed to start. The error is as follows:
1 2018-12-12 20:17:44.371 |-ERROR [Druid-ConnectionPool-Create-116919541] com.alibaba.druid.pool.DruidDataSource [2471] -| create connection SQLException, url: jdbc:mysql://127.0.0.1:3306/xx?characterEncoding=utf8&useSSL=true, errorCode 0, state 08S01
2 com.mysql.jdbc.exceptions.jdbc4.CommunicationsException: Communications link failure
3
4 The last packet successfully received from the server was 905 milliseconds ago. The last packet sent successfully to the server was 899 milliseconds ago.
5 at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
6 at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)
7 at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
8 at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
9 at com.mysql.jdbc.Util.handleNewInstance(Util.java:425)
10 at com.mysql.jdbc.SQLError.createCommunicationsException(SQLError.java:990)
11 at com.mysql.jdbc.ExportControlled.transformSocketToSSLSocket(ExportControlled.java:201)
12 at com.mysql.jdbc.MysqlIO.negotiateSSLConnection(MysqlIO.java:4912)
13 at com.mysql.jdbc.MysqlIO.proceedHandshakeWithPluggableAuthentication(MysqlIO.java:1663)
14 at com.mysql.jdbc.MysqlIO.doHandshake(MysqlIO.java:1224)
15 at com.mysql.jdbc.ConnectionImpl.coreConnect(ConnectionImpl.java:2190)
16 at com.mysql.jdbc.ConnectionImpl.connectOneTryOnly(ConnectionImpl.java:2221)
17 at com.mysql.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:2016)
18 at com.mysql.jdbc.ConnectionImpl.<init>(ConnectionImpl.java:776)
19 at com.mysql.jdbc.JDBC4Connection.<init>(JDBC4Connection.java:47)
20 at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
21 at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)
22 at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
23 at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
24 at com.mysql.jdbc.Util.handleNewInstance(Util.java:425)
25 at com.mysql.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:386)
26 at com.mysql.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:330)
27 at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:156)
28 at com.alibaba.druid.filter.stat.StatFilter.connection_connect(StatFilter.java:218)
29 at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
30 at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1560)
31 at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1623)
32 at com.alibaba.druid.pool.DruidDataSource$CreateConnectionThread.run(DruidDataSource.java:2468)
33 Caused by: javax.net.ssl.SSLHandshakeException: java.security.cert.CertificateException: java.security.cert.CertPathValidatorException: Path does not chain with any of the trust anchors
34 at sun.security.ssl.Alerts.getSSLException(Alerts.java:192)
35 at sun.security.ssl.SSLSocketImpl.fatal(SSLSocketImpl.java:1959)
36 at sun.security.ssl.Handshaker.fatalSE(Handshaker.java:328)
37 at sun.security.ssl.Handshaker.fatalSE(Handshaker.java:322)
38 at sun.security.ssl.ClientHandshaker.serverCertificate(ClientHandshaker.java:1614)
39 at sun.security.ssl.ClientHandshaker.processMessage(ClientHandshaker.java:216)
40 at sun.security.ssl.Handshaker.processLoop(Handshaker.java:1052)
41 at sun.security.ssl.Handshaker.process_record(Handshaker.java:987)
42 at sun.security.ssl.SSLSocketImpl.readRecord(SSLSocketImpl.java:1072)
43 at sun.security.ssl.SSLSocketImpl.performInitialHandshake(SSLSocketImpl.java:1385)
44 at sun.security.ssl.SSLSocketImpl.startHandshake(SSLSocketImpl.java:1413)
45 at sun.security.ssl.SSLSocketImpl.startHandshake(SSLSocketImpl.java:1397)
46 at com.mysql.jdbc.ExportControlled.transformSocketToSSLSocket(ExportControlled.java:186)
47 ... 21 common frames omitted
48 Caused by: java.security.cert.CertificateException: java.security.cert.CertPathValidatorException: Path does not chain with any of the trust anchors
49 at com.mysql.jdbc.ExportControlled$X509TrustManagerWrapper.checkServerTrusted(ExportControlled.java:302)
50 at sun.security.ssl.AbstractTrustManagerWrapper.checkServerTrusted(SSLContextImpl.java:985)
51 at sun.security.ssl.ClientHandshaker.serverCertificate(ClientHandshaker.java:1596)
52 ... 29 common frames omitted
53 Caused by: java.security.cert.CertPathValidatorException: Path does not chain with any of the trust anchors
54 at sun.security.provider.certpath.PKIXCertPathValidator.validate(PKIXCertPathValidator.java:153)
55 at sun.security.provider.certpath.PKIXCertPathValidator.engineValidate(PKIXCertPathValidator.java:79)
56 at java.security.cert.CertPathValidator.validate(CertPathValidator.java:292)
57 at com.mysql.jdbc.ExportControlled$X509TrustManagerWrapper.checkServerTrusted(ExportControlled.java:295)
58 ... 31 common frames omittedSearch on the Internet is a certificate problem, the address of usessl can be changed to false
After installing 5.7 database in windows, no error was reported