这一句javax.servlet.ServletException: javax.servlet.jsp.JspException: Unable to get connection, DataSource invalid: "java.sql.SQLNonTransientConnectionException: Cannot open file:C:\Program Files\glassfish-4.1.1\glassfish\domains\domain1/config/keystore.jks [Keystore was tampered with, or password was incorrect]"让我一直以为是没连接好，可是查了密码没有错
后来发现是用了mysql-connector-java-8.0.12.jar这个驱动，重新下载了mysql-connector-java-5.1.11-bin.jar驱动就可以了