1.验证字符串长度在5-10个字符之间,并使用trim去首尾空格后校验 < field name ="username" > < field-validator type ="stringLength" > < param name ="trim" > true </ param > < param name ="minLength" > 5 </ param > < param name ="maxLength" > 10 </ param > </ field-validator > </ field > 2.防止日期早于1970年 < field name ="birthday" > < field-validator type ="date" > < param name ="min" > 01/01/1970 </ param > </ field-validator > </ field > 3.校验int范围,并把验证范围传递到jsp显示 < field name ="age" > < field-validator type ="int" > < param name ="min" > 0 </ param > < param name ="max" > 10 </ param > < message > count must be between ${min} and ${max} current value is ${age} </ field-validator > </ field >