oktag.java

是JSP、Servlet的一个示例程序

/*
 * Created on 2005-3-8
 *
 * TODO To change the template for this generated file go to
 * Window - Preferences - Java - Code Style - Code Templates
 */
package test;

import java.io.IOException;
import java.util.Date;

import javax.servlet.jsp.JspTagException;
import javax.servlet.jsp.tagext.TagSupport;

/**
 * @author yangbing
 * 
 * TODO To change the template for this generated type comment go to Window -
 * Preferences - Java - Code Style - Code Templates
 */
public class OkTag extends TagSupport {
    public int doStartTag() throws JspTagException {
        String dateString = new Date().toString();
        try {
            pageContext.getOut().write("Ok it is second tag. <br/>");
            pageContext.getOut().write(
                    "My name is " + getClass().getName() + " and it's "
                            + dateString + "<p/>");
        } catch (IOException ex) {
            throw new JspTagException(
                    "Fatal error: hello tag could not write to JSP out");
        }
        return EVAL_BODY_INCLUDE;
    }

    public int doEndTag() throws JspTagException {
        /*
         * String dateString=new Date().toString(); try{
         * pageContext.getOut().write("Ok it is second tag. <br/>");
         * pageContext.getOut().write("My name is "+getClass().getName()+" and
         * it's "+dateString+" <p/>"); }catch(IOException ex){ throw new
         * JspTagException("Fatal error: hello tag could not write to JSP out"); }
         */
        return EVAL_PAGE;
    }
}