1：使用jstl标签 （能够和自定义标签配合使用）html
首先引用jstl标签java
<%@ taglib uri="http://java.sun.com/jsp/jstl/core" prefix="c" %>
而后使用foreach标签session
<c:forEach items="${list}" var="user" varStatus="vs">
<tr>
<td>
<s:property value="#vs.index+1"/>
</td>
<td align = "center">${user.PId}</td>
<td align = "center">${user.PLoginname}</td>
<td align = "center">${user.PUserName}</td>
<td align = "center">${user.PEmail}</td>
<td align = "center"><html:department pdeptid="${user.PDeptid}"></html:department></td> <!-- 自定义标签 -->
</tr>
</c:forEach>
能够用<c:if test="${not empty list}"></c:if> 和 <c:if test="${not empty list}"></c:if> 来处理是否为空的状况。若是不为空，显示值，为空的话，显示无记录等。jsp
后台能够把list放到值栈或者放到request.例如：request.setAttribute("list", XXXXlist);
大数据
2：使用jsp内嵌java代码遍历List (在后台把List放到session中，若是是大数据量，不该使用此方法)spa
首先在后台把list放入到session中code
request.getSession().setAttribute(Data.ALLNEWSLIST, list);
红色标记的Data.ALLNEWSLIST 为常量 在com.xiami.onlineshop.common包下的Data类中定义htm
public static final String ALLNEWSLIST="ALLNEWSLIST";
jsp代码：(注意标红的代码不要忘记引入对应的类)get
<%@ page language="java" import="java.util.*,com.xiami.onlineshop.common.*,com.xiami.onlineshop.data.*" pageEncoding="GBK"%>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
</head>
<body>
<%
String ntype=null;
int pagenum=1;
if(request.getParameter("pagecurrent")!=null){
pagenum=Integer.parseInt(request.getParameter("pagecurrent"));
}
List list=null;
if(session.getAttribute(Data.ALLNEWSLIST)!=null){
list = (List)session.getAttribute(Data.ALLNEWSLIST);
int l = list.size();
%>
<table border=1 width="100%">
<tr bgcolor="#8E8E8E">>>首页>商城动态</tr>
</table>
<br><br> </font></center>
<font color=#272727>第<%=pagenum %>页<Br><br></font>
<table>
<%
for(int i=0;i<l;i++){
News news =(News)list.get(i);
ntype=news.getNtype();
%>
<tr bgcolor="#93FF93">
<td bgcolor="#6C6C6C"><%=news.getNid() %></td>
<td bgcolor="#ADADAD"><a href="servlet/ShowDetailNews?nid=<%=news.getNid() %>"><%=news.getNtitle() %></a></td>
</tr>
<%
}
%>
</table><br>
<a href="servlet/ShowAllNews?page=1&type=<%=ntype %>">首页</a>
<a href="servlet/ShowAllNews?page=<%=pagenum-1 %>&type=<%=ntype %>">上一页</a>
<a href="servlet/ShowAllNews?page=<%=pagenum+1 %>&type=<%=ntype %>">下一页</a>
<a href="servlet/ShowNewsEndPage?type=<%=ntype %>">尾页</a>
<%
}
%>
</body>
</html>
3：使用Struts标签servlet
<%@ taglib prefix="s" uri="/struts-tags"%>
<s:iterator value="#request.userList" status="stat" id="sd"> <tr align="center"> <td> <s:property value="#sd[6]" /> </td> <td> <s:property value="#sd[1]" /> </td> <td> <s:property value="#sd[2]"></s:property> </td> <td> <s:property value="#sd[4]"></s:property> </td> <td> <s:property value="#sd[5]"></s:property> </td> </tr> </s:iterator>