MYECLIPSE与MYSQL加载驱动but failed to unregister it when the web application was stopped. To prevent

ct= DriverManager.getConnection("jdbc:mysql://localhost/yxl?" + "user=root&password=a346254964")这样的格式不对吧。你的URL中缺少端口，而且，用户名和密码不能像web请求的地址那样写。DriverManager.getConnection("jdbc:mysql://localhost:3306:orcl","root","1234")

找不到Action提交的路径， 你把web.xml 里url-pattern改成 <url-pattern>/JdbcTest</url-pattern>

不是<url-pattern>/oaweb/JdbcTest</url-pattern>

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