validator 自定义验证规则

1. 定义自己的验证方法类：

java 代码

java 代码

 public static boolean validateTwoFields(Object bean, ValidatorAction va,
                                            Field field, ActionMessages errors,
                                            HttpServletRequest request) {
        String value =
           ValidatorUtils.getValueAsString(bean, field.getProperty());//得到用户输入的该filed的值
        String sProperty2 = field.getVarValue("secondProperty"); //得到定义在field的变量(validation.xml中),此处指定的是另一个field name
        String value2 = ValidatorUtils.getValueAsString(bean, sProperty2);

        if (!GenericValidator.isBlankOrNull(value)) {
            try {
                if (!value.equals(value2)) {
                    errors.add(field.getKey(),
                               Resources.getActionMessage(request, va, field));

                    return false;
                }
            } catch (Exception e) {
                errors.add(field.getKey(),
                           Resources.getActionMessage(request, va, field));

                return false;
            }
        }

        return true;
    }
}

 2  .到validator-rule-custom.xml加入你定制的rule.

xml 代码

<field property="password"
                   depends="required,twofields">
                <msg
                  name="twofields"
                  key="errors.twofields"/>

                <arg0 key="userForm.password"/>
                <arg1
                  key="userForm.confirmPassword"
                />
                <var>
                  <var-name>secondPropertyvar-name>
                  <var-value>confirmPasswordvar-value>
                var>
            field>
            <field property="confirmPassword"
                   depends="required">

                <arg0 key="userForm.confirmPassword"/>
            field>