package cn.edu.bit.taglib;
import java.util.Vector;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.jsp.JspException;
import javax.servlet.jsp.JspWriter;
import javax.servlet.jsp.tagext.TagSupport;
import cn.edu.bit.DBQuery.DataProcess;
import cn.edu.bit.Object.News;
/**
*
* @author liuyu
*2007-7-21
*/
public class NewsTag extends TagSupport{
public int doEndTag() throws JspException {
JspWriter out = pageContext.getOut();
HttpServletRequest request = (HttpServletRequest) pageContext.getRequest();
String str = (String) request.getQueryString();
int page;
if (str == null || str.equals(""))
page = 1;
else {
// 根据‘=’来析取参数值
String[] aa = str.split("=");
page = Integer.parseInt(aa[1]);
}
try
{
String strSql = new String("select * from news order by datetime desc");
// search方法会把结果集中指定页的内容按行储存到Bean中，
//---------------------------------------------------------------
int count = DataProcess.nCount(strSql);
int totalPages = 0;
if(count%5==0)
{
totalPages=count/5;
}
else
{
totalPages = count/5+1;
}
int currentPage=1;
if(page<=0)
{
currentPage=1;
}
else if(page>totalPages)
{
currentPage=totalPages;
}
else
{
currentPage = page;
}
//----------------------------------------------------------
// 并将这些Bean保存在容器类中，然后返回
Vector Items = News.search(strSql, page);
out.println("<table width=\"75%\" border=\"0\" cellspacing=\"1\" cellpadding=\"1\" class=\"tableBorder\">" );
out.println("<tr>");
out.println("<td colspan=\"2\" align=\"center\" background=\"../../images/guanli/admin_bg_1.gif\" class=\"whitenormal\">新闻管理</td>");
out.println("</tr>");
for (int i = 0; i < Items.size(); i++)
{
News bean = (News) Items.elementAt(i);
out.println("<tr>");
out.println("<td width=\"72%\" bgcolor=\"E4EDF9\" class=\"normalText\">"+bean.getTitle()+"</td>");
out.println("<td width=\"28%\" align=\"right\" bgcolor=\"E4EDF9\"><a href=\"/Lab/guanli/news/edit_news.jsp?news_id="+bean.getId()+"\">[编辑]</a>" +
" <a href=\"/Lab/guanli/news/delete_news.jsp?news_id="+bean.getId()+" \"onclick=\"{if(confirm(\'确定删除吗?\')){return true;}return false;}\">[删除]</a></td>");
out.println("</tr>");
out.println("<tr>");
out.println("<td colspan=\"2\" bgcolor=\"F1F3F5\" class=\"normalText\">"+bean.getContent()+"</td>");
out.println("</tr>");
out.println("<tr>");
out.println("<td colspan=\"2\"> </td>");
out.println("</tr>");
}
out.println("<tr>");
out.println("<td colspan=\"2\"><table width=\"100%\" border=\"0\" cellpadding=\"0\" cellspacing=\"0\" bgcolor=\"E4EDF9\">");
out.println("<tr class=\"normalText\">");
out.println("<td>页次:"+currentPage+"/"+totalPages+"页 每页5 总数"+count+"</td>");
out.println("<td align=\"right\">分页:");
if(page!=-1){
out.println("<a href=\"news_list.jsp?arg1=-1\">首页</a> ");
}
out.println("<a href=\"news_list.jsp?arg2=-2\">上一页</a> ");
out.println("<a href=\"news_list.jsp?arg3=-3\">下一页</a> ");
if(page!=-4){
out.println("<a href=\"news_list.jsp?arg4=-4\">尾页</a></td>");
}
out.println("</tr>");
out.println("</table></td>");
out.println("</tr>");
out.println("</table>");
}
catch(Exception e)
{
e.printStackTrace();
}
return SKIP_BODY;
}
}
精通javaee代码3
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2009-01-18
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精通javaee代码3 （252个子文件） 
Teacher_Manager.class 4KB News.class 4KB Student_Manager.class 4KB NewsTag.class 4KB PopTag.class 4KB Admin_Manager.class 4KB NewsTag4guest.class 3KB News4news.class 3KB Project_Manager.class 3KB Pageable.class 3KB Note_Manager.class 2KB DataProcess.class 2KB LoginServlet.class 2KB EditStudentServlet.class 2KB Grade_Manager.class 2KB EncodingFilter.class 2KB EditTeacherServlet.class 2KB Teacher.class 2KB AddStudentServlet.class 2KB EditProjectServlet.class 2KB Note.class 2KB AddTeacherServlet.class 2KB News_Manager.class 2KB AddManagerServlet.class 2KB EditNewsServlet.class 2KB AddProjectServlet.class 2KB EditManagerServlet.class 2KB Student.class 2KB Project.class 2KB AddNewsServlet.class 2KB Manager.class 1KB Grade.class 1KB .classpath 2KB stylesheet.css 18KB OSX.css 3KB xtree.css 944B privilege.css 697B Thumbs.db 90KB Thumbs.db 48KB Thumbs.db 26KB Entries 976B Entries 856B Entries 767B Entries 443B Entries 436B Entries 431B Entries 401B Entries 401B Entries 367B Entries 347B Entries 136B Entries 90B Entries 47B
67017E7E54C3224BE4C5C538D7B268F7.GIF 41KB 24_330.gif 38KB sb.gif 37KB 2-3.gif 23KB 2-6.gif 12KB 2-4.gif 9KB 2-5.gif 6KB admin_logo.gif 3KB 9stars.gif 3KB 2-1.gif 3KB xong2.gif 3KB stop.gif 3KB xong1.gif 3KB s09.gif 3KB s10.gif 3KB xong4.gif 3KB xong5.gif 3KB 1-1.gif 3KB s08.gif 3KB xong3.gif 3KB title.gif 3KB xong7.gif 3KB xong9.gif 2KB xong8.gif 2KB xong6.gif 2KB bitunion.gif 2KB admin_left_10.gif 2KB admin_left_1.gif 2KB admin_left_5.gif 2KB admin_left_4.gif 2KB title_bg_quit.gif 2KB bit3.gif 2KB admin_left_7.gif 1KB user login.gif 1KB admin_left_2.gif 1KB contact.gif 1KB button_register.gif 1009B button_login.gif 993B password.gif 966B user.gif 956B createlink.gif 429B forumHeaderBackground.gif 390B pinfo.gif 264B bullet.gif 179B admin_bg_1.gif 173B bg_1.gif 173B more.gif 165B共 252 条
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