hellotag.java

自定义标记

package hello;

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

public class helloTag extends TagSupport {
	// ----标签开始时调用此方法-------
	public int doStartTag() {
		try {
			JspWriter out = pageContext.getOut();
			out.print("标签开始了。<font color=\"red\">hello！</font>");
		} catch (Exception e) {
			System.out.println(e);
		}
		return EVAL_BODY_INCLUDE;
	}

	// ----标签结束时调用此方法-------
	public int doEndTag() {
		try {
			JspWriter out = pageContext.getOut();
			out.print("标签结束了。");
		} catch (Exception e) {
			System.out.println(e);
		}
		return EVAL_PAGE;
	}
}