1)"Caused by: java.sql.SQLException: Syntax error or access violation message from server: "You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'group, testoption.content as content, testoption.score as score, testoption.Ques' at line 1"
----：在你的pojo中定义了数据库的key word，例如：group等等.
2)net.sf.hibernate.QueryException: could not resolve property type: username [select user.password from cn.org.sppc.ipmanager.User user where user.username=?]
----：username在Form类中、在Hibernate的xml文件中和相对应的PO对象中名称都要保持一致（包括大小写）。包括struts-config.xml中的。