cookievaluetag.java

J2EE指南

package book.simpletasks;
import java.io.IOException;
import javax.servlet.jsp.PageContext;
import javax.servlet.jsp.JspException;
import javax.servlet.jsp.JspTagException;
import javax.servlet.jsp.tagext.TagSupport;
import javax.servlet.http.*;
public class CookieValueTag extends TagSupport 
{
   String cookieName; 
   public int doStartTag()throws JspException
       {
        try {
       
                 pageContext.getOut().print(cookieName); 
                                      
                                   
                       
             
             }
			 catch(IOException ioe) {
                                     throw new JspTagException("Error: IOException while writing to the user");
                                      }
                      return SKIP_BODY; 
        }
   public void setCookiename( String value ) 
	   {
           cookieName = value;
        }
}