報錯信息

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.GeneratedConstructorAccessor34.newInstance(Unknown Source)at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(Unknown Source)at java.lang.reflect.Constructor.newInstance(Unknown Source)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)... 6 more Caused by: javax.net.ssl.SSLHandshakeException: java.security.cert.CertificateException: java.security.cert.CertPathValidatorException: Path does not chain with any of the trust anchorsat sun.security.ssl.Alerts.getSSLException(Unknown Source)at sun.security.ssl.SSLSocketImpl.fatal(Unknown Source)at sun.security.ssl.Handshaker.fatalSE(Unknown Source)at sun.security.ssl.Handshaker.fatalSE(Unknown Source)at sun.security.ssl.ClientHandshaker.serverCertificate(Unknown Source)at sun.security.ssl.ClientHandshaker.processMessage(Unknown Source)at sun.security.ssl.Handshaker.processLoop(Unknown Source)at sun.security.ssl.Handshaker.process_record(Unknown Source)at sun.security.ssl.SSLSocketImpl.readRecord(Unknown Source)at sun.security.ssl.SSLSocketImpl.performInitialHandshake(Unknown Source)at sun.security.ssl.SSLSocketImpl.startHandshake(Unknown Source)at sun.security.ssl.SSLSocketImpl.startHandshake(Unknown Source)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)... 13 more Caused by: java.security.cert.CertificateException: java.security.cert.CertPathValidatorException: Path does not chain with any of the trust anchorsat com.mysql.cj.protocol.ExportControlled$X509TrustManagerWrapper.checkServerTrusted(ExportControlled.java:280)at sun.security.ssl.AbstractTrustManagerWrapper.checkServerTrusted(Unknown Source)... 25 more Caused by: java.security.cert.CertPathValidatorException: Path does not chain with any of the trust anchorsat sun.security.provider.certpath.PKIXCertPathValidator.validate(Unknown Source)at sun.security.provider.certpath.PKIXCertPathValidator.engineValidate(Unknown Source)at java.security.cert.CertPathValidator.validate(Unknown Source)at com.mysql.cj.protocol.ExportControlled$X509TrustManagerWrapper.checkServerTrusted(ExportControlled.java:273)... 26 more

解決

不建議在沒有服務器身份驗證的情況下建立SSL連接。根據MySQL 5.5.45+、5.6.26+和5.7.6+的要求，

如果不設置顯式選項，則必須建立默認的SSL連接。需要通過設置useSSL=false來顯式禁用SSL，

或者設置useSSL=true并為服務器證書驗證提供信任存儲。

找到數據連接的url，這里是ssm整合時的配置文件中

將useSSL=true改為useSSL=false

<!-- 定義數據源Bean --><!-- Druid --><bean id="dataSource" class="com.alibaba.druid.pool.DruidDataSource"><property name="url"value="jdbc:mysql://localhost:3306/ssmtest?characterEncoding=UTF-8&amp;useSSL=false" /><property name="username" value="root" /><property name="password" value="123" /></bean>

?

總結

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