The server time zone value ‘�й���׼ʱ��’ is unrecognized or represents more than one time zone.

com.mysql.cj.exceptions.InvalidConnectionAttributeException: The server time zone value ‘�й���׼ʱ��’ is unrecognized or represents more than one time zone.

2020-04-21 13:49:27.504 ERROR 8432 — [eate-1102607850] com.alibaba.druid.pool.DruidDataSource : create connection SQLException, url: jdbc:mysql://localhost:3305/demo?useUnicode=true&characterEncoding=utf-8, errorCode 0, state 01S00

java.sql.SQLException: The server time zone value ‘�й���׼ʱ��’ is unrecognized or represents more than one time zone. You must configure either the server or JDBC driver (via the ‘serverTimezone’ configuration property) to use a more specifc time zone value if you want to utilize time zone support.

控制台报错

---

2020-04-21 13:49:50.494 ERROR 8432 — [eate-1102607850] com.alibaba.druid.pool.DruidDataSource : create connection SQLException, url: jdbc:mysql://localhost:3305/demo?useUnicode=true&characterEncoding=utf-8, errorCode 0, state 01S00

java.sql.SQLException: The server time zone value ‘�й���׼ʱ��’ is unrecognized or represents more than one time zone. You must configure either the server or JDBC driver (via the ‘serverTimezone’ configuration property) to use a more specifc time zone value if you want to utilize time zone support.
at com.mysql.cj.jdbc.exceptions.SQLError.createSQLException(SQLError.java:129) ~[mysql-connector-java-8.0.19.jar:8.0.19]
at com.mysql.cj.jdbc.exceptions.SQLError.createSQLException(SQLError.java:97) ~[mysql-connector-java-8.0.19.jar:8.0.19]
at com.mysql.cj.jdbc.exceptions.SQLError.createSQLException(SQLError.java:89) ~[mysql-connector-java-8.0.19.jar:8.0.19]
at com.mysql.cj.jdbc.exceptions.SQLError.createSQLException(SQLError.java:63) ~[mysql-connector-java-8.0.19.jar:8.0.19]
at com.mysql.cj.jdbc.exceptions.SQLError.createSQLException(SQLError.java:73) ~[mysql-connector-java-8.0.19.jar:8.0.19]
at com.mysql.cj.jdbc.exceptions.SQLExceptionsMapping.translateException(SQLExceptionsMapping.java:76) ~[mysql-connector-java-8.0.19.jar:8.0.19]
at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:836) ~[mysql-connector-java-8.0.19.jar:8.0.19]
at com.mysql.cj.jdbc.ConnectionImpl.(ConnectionImpl.java:456) ~[mysql-connector-java-8.0.19.jar:8.0.19]
at com.mysql.cj.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:246) ~[mysql-connector-java-8.0.19.jar:8.0.19]
at com.mysql.cj.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:197) ~[mysql-connector-java-8.0.19.jar:8.0.19]
at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1510) ~[druid-1.1.6.jar:1.1.6]
at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1575) ~[druid-1.1.6.jar:1.1.6]
at com.alibaba.druid.pool.DruidDataSource$CreateConnectionThread.run(DruidDataSource.java:2450) ~[druid-1.1.6.jar:1.1.6]
Caused by: com.mysql.cj.exceptions.InvalidConnectionAttributeException: The server time zone value ‘�й���׼ʱ��’ is unrecognized or represents more than one time zone. You must configure either the server or JDBC driver (via the ‘serverTimezone’ configuration property) to use a more specifc time zone value if you want to utilize time zone support.
at sun.reflect.GeneratedConstructorAccessor54.newInstance(Unknown Source) ~[na:na]
at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45) ~[na:1.8.0_162]
at java.lang.reflect.Constructor.newInstance(Constructor.java:423) ~[na:1.8.0_162]

---

报错原因：

1. mysql-connection-java版本导致时区的问题。

2. 可能是因为版本原因。

解决方式

1.pom.xml文件中去掉version5.1.47
或者改成8版本

    mysql
    mysql-connector-java
    runtime

2.aplication.properties配置文件后加入 serverTimezone=UTC

spring.datasource.url=jdbc:mysql://localhost:3305/demo?useUnicode=true&characterEncoding=utf-8&serverTimezone=UTC

mysql-connector-java与mysql版本对应关系

com.mysql.jdbc.Driver 是 mysql-connector-java 5中的
JDBC连接Mysql5 com.mysql.jdbc.Driver:

com.mysql.cj.jdbc.Driver 是 mysql-connector-java 6中的
JDBC连接Mysql6 com.mysql.cj.jdbc.Driver， 需要指定时区serverTimezone:

1、JDBC连接Mysql5 com.mysql.jdbc.Driver:

driverClassName=com.mysql.jdbc.Driver
url=jdbc:mysql://localhost:3305/demo?useUnicode=true&characterEncoding=utf8&useSSL=false
username=root
password=123

2、JDBC连接Mysql6 com.mysql.cj.jdbc.Driver， 需要指定时区serverTimezone:

driverClassName=com.mysql.cj.jdbc.Driver
url=jdbc:mysql://localhost:3305/demo?serverTimezone=UTC&?useUnicode=true&characterEncoding=utf8&useSSL=false
username=root
password=123

在设定时区的时候，如果设定serverTimezone=UTC，会比中国时间早8个小时，如果在中国，可以选择Asia/Shanghai或者Asia/Hongkong，例如：

driverClassName=com.mysql.cj.jdbc.Driver
url=jdbc:mysql://localhost:3305/demo?serverTimezone=Shanghai&?useUnicode=true&characterEncoding=utf8&useSSL=false
username=root
password=

官网文档地址：

https://dev.mysql.com/doc/connector-j/5.1/en/connector-j-versions.html （Connector/J Versions 5.1）

https://dev.mysql.com/doc/connector-j/6.0/en/connector-j-versions.html （Connector/J Versions 6.0）