定义标记错误1

定义标记错误1
package text;
/**
 * @author 让痛苦痛苦
 * 借助于JavaScritDropDownRequiresTag文件的代码
 */
import javax.servlet.jsp.tagext.*;
public class JavaScriptDropdownRequiredValidationTag extends TagExtraInfo{
 public boolean isValid(TagData td)
 {
  boolean isOkay=true;
  try {
   String formAndInput=(String)td.getAttribute("formAndInputtName");
   if(formAndInput.indexOf("")!=-1)
   {
    isOkay=false;
   }
   if(formAndInput.indexOf(".")==-1)
   {
    isOkay=false;
   }
   String jsGUIAlerName=(String)td.getAttribute("alertGUIName");
   if(jsGUIAlerName.length()==0)
   {
    isOkay=false;
   }
  } catch (Exception e) {
   System.out.println("Failure in Tag Validation");
   e.printStackTrace();
   // TODO: handle exception
  }
  return isOkay;
 }

}