java.sql.SQLException: The server time zone value 'Öйú±ê׼ʱ¼ä' 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)
	at com.mysql.cj.jdbc.exceptions.SQLError.createSQLException(SQLError.java:97)
	at com.mysql.cj.jdbc.exceptions.SQLError.createSQLException(SQLError.java:89)
	at com.mysql.cj.jdbc.exceptions.SQLError.createSQLException(SQLError.java:63)
	at com.mysql.cj.jdbc.exceptions.SQLError.createSQLException(SQLError.java:73)
	at com.mysql.cj.jdbc.exceptions.SQLExceptionsMapping.translateException(SQLExceptionsMapping.java:76)
	at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:835)
	at com.mysql.cj.jdbc.ConnectionImpl.<init>(ConnectionImpl.java:455)
	at com.mysql.cj.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:240)
	at com.mysql.cj.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:207)
	at java.sql.DriverManager.getConnection(DriverManager.java:664)
	at java.sql.DriverManager.getConnection(DriverManager.java:247)
	at cn.stu.jdbc.Demo4.main(Demo4.java:15)

通过在csdn搜索,发现大家解决问题的主要办法有两个`

方法1.在语句"jdbc:mysql://localhost:3366/stujdbc “后添加” ?serverTimezone=GMT%2B8":

更改前:

jdbc:mysql://localhost:3366/stujdbc 

更改后:

jdbc:mysql://localhost:3366/stujdbc ? serverTimezone=GMT%2B8

方法2:网上很多博主建议的更改MySQL中的系统时间:

这个方法经博主测试也是可以但,但发现重启MySQL后设置就会还原,程序依旧会报错,所以博主还是建议小伙伴们采用第1种方法,希望能帮助到初学的小伙伴.