如果數據庫的密碼是1234,下面這個就通不過
driverClassName = com.mysql.jdbc.Driver
url = jdbc:mysql:///web_test3
username = root
password = 1234
原因就是password的value值後面後空格,下面這個就能通過
driverClassName = com.mysql.jdbc.Driver
url = jdbc:mysql:///web_test3
username = root
password = 1234