關於解決springboot在整合MySQL時，操作資料庫時如下異常：

java.sql.SQLNonTransientConnectionException: CLIENT_PLUGIN_AUTH is required
	at com.mysql.cj.jdbc.exceptions.SQLError.createSQLException(SQLError.java:110)
	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:79)
	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 com.zaxxer.hikari.util.DriverDataSource.getConnection(DriverDataSource.java:136)
	at com.zaxxer.hikari.pool.PoolBase.newConnection(PoolBase.java:369)
	at com.zaxxer.hikari.pool.PoolBase.newPoolEntry(PoolBase.java:198)
	........
 

解決很簡單：修改mysql-connector-java依賴版本：為5.1.34，即可

<dependency>
	<groupId>mysql</groupId>
	<artifactId>mysql-connector-java</artifactId>
	<version>5.1.34</version>
</dependency>