做增删改查的时候，tomcat报一个不知名错？

Question

[10:07:18:806] [ERROR] - com.opensymphony.xwork2.interceptor.ParametersInterceptor.notifyDeveloperParameterException(ParametersInterceptor.java:227) - Developer Notification (set struts.devMode to false to disable this message):
Unexpected Exception caught setting 'x' on 'class school.student.oa.view.action.UserAction: Error setting expression 'x' with value ['32', ]
[10:07:18:817] [ERROR] - com.opensymphony.xwork2.interceptor.ParametersInterceptor.notifyDeveloperParameterException(ParametersInterceptor.java:227) - Developer Notification (set struts.devMode to false to disable this message):
Unexpected Exception caught setting 'y' on 'class school.student.oa.view.action.UserAction: Error setting expression 'y' with value ['12', ]

Struts.xml的Struts.devMode改成true然后在做增删改查的时候就报这个错，同时tomcat也不会自动加载已经写好的类，需要重启，这个怎么解决，求教

Answer 1

参数异常，用32设置X的值，用12设置Y的值。应该是插入或更新时字符类型不匹配导致的。