newsreplyselecttag.java

新闻发布系统,界面简单

package com.tag;

import java.io.IOException;
import java.util.List;

import javax.servlet.jsp.JspException;
import javax.servlet.jsp.JspWriter;
import javax.servlet.jsp.tagext.BodyTagSupport;

import com.javaBean.NewsReply;
import com.javaBeanDao.*;
public class NewsReplySelectTag extends BodyTagSupport {
            
	@Override
	public int doAfterBody() throws JspException {
		// TODO Auto-generated method stub
		//获得标签体
		String nid=this.bodyContent.getString();
	    //实例化NewsReplyDao对象
		NewsReplyDao nrd=new NewsReplyDao();
		List list=nrd.getNidSelect(Integer.parseInt(nid));
		String all = "";
		if(list!=null){
		for(int i = 0; i < list.size(); i ++){
			NewsReply r = (NewsReply) list.get(i);
			all += (i + 1) + ".&nbsp;&nbsp;<font color='#ff7845'>" + r.getNrContent() + "<br>发表于：&nbsp;&nbsp;<i>(" + r.getNrdatetime() + ")</i><br><br></font>";
		}
		}
		
		if(all.equals(""))
		{
			all="该新闻暂时还没有评论！！！";
			
		}
		JspWriter out=this.bodyContent.getEnclosingWriter();
		try {
			out.print(all);
		} catch (IOException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}
		return SKIP_BODY;
	}
}