spring.datasource.tomcat.jdbc-interceptors=com.demo.YourInterceptor;ConnectionState(这个是自带的拦截器)

 

public class YourInterceptor extends JdbcInterceptor {    @Override    public void reset(ConnectionPool connectionPool, PooledConnection pooledConnection) {　　　　try {　　　　　　　　//切库                　　　　　　　　pooledConnection.getConnection().setCatalog(databaseName);           } catch (SQLException e) {                LOGGER.error("tenant change error: {}", e);       }    }}