按照数据结构在jsp页面输出数据
1.两层循环
{税种1,{[a,b,c,d,e],[a,b,c,d,e],[a,b,c,d,e[a,b,c,d,e]}}
{税种2,{[a,b,c,d,e],[a,b,c,d,e],[a,b,c,d,e[a,b,c,d,e]}}
test.jsp
<%@ page language="java" import="java.util.*" pageEncoding="utf-8"%>
<%@ taglib uri="http://java.sun.com/jsp/jstl/core" prefix="c"%>
<%@ taglib prefix="fn" uri="http://java.sun.com/jsp/jstl/functions"%>
<%
String path = request.getContextPath();
String basePath = request.getScheme() + "://"
+ request.getServerName() + ":" + request.getServerPort()
+ path + "/";
%>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<body>
<%
List list = new ArrayList();
String[] arr1 = new String[] { "a", "b", "c", "d", "e" };
String[] arr2 = new String[] { "a", "b", "c", "d", "e" };
String[] arr3 = new String[] { "a", "b", "c", "d", "e" };
String[] arr4 = new String[] { "a", "b", "c", "d", "e" };
list.add(arr1);
list.add(arr2);
list.add(arr3);
list.add(arr4);
List lista = new ArrayList();
lista.add("税种");
lista.add(list);
List list1 = new ArrayList();
String[] arr11 = new String[] { "a", "b", "c", "d", "e" };
String[] arr22 = new String[] { "a", "b", "c", "d", "e" };
String[] arr33 = new String[] { "a", "b", "c", "d", "e" };
String[] arr44 = new String[] { "a", "b", "c", "d", "e" };
String[] arr55 = new String[] { "a", "b", "c", "d", "e" };
list1.add(arr11);
list1.add(arr22);
list1.add(arr33);
list1.add(arr44);
list1.add(arr55);
List listb = new ArrayList();
listb.add("税种");
listb.add(list1);
List listc = new ArrayList();
listc.add(lista);
listc.add(listb);
request.setAttribute("listc", listc);
%>
<table border="1" bordercolor="red" style="margin: 0;padding: 0">
<tr>
<td>税种</td>
<td>金额</td>
<td>金额</td>
<td>金额</td>
<td>金额</td>
<td>金额</td>
</tr>
<c:forEach items="${listc}" var="subList1">
<tr>
<td rowspan="${fn:length(subList1[1])}">${subList1[0]}</td>
<c:forEach items="${subList1[1]}" var="subList2" varStatus="status1">
<c:if test="${status1.index==0}">
<c:forEach items="${subList2}" var="subList3" varStatus="status2">
<td>${subList3}</td>
</c:forEach>
</tr>
</c:if>
<c:if test="${status1.index>0}">
<tr>
<c:forEach items="${subList2}" var="subList3" varStatus="status2">
<td>${subList3}</td>
</c:forEach>
</tr>
</c:if>
</c:forEach>
</c:forEach>
</table>
</body>
</html>
2.三层循环：
{
{名称,
{税种1,{[a,b,c,d,e],[a,b,c,d,e],[a,b,c,d,e[a,b,c,d,e]}},
{税种2,{[a,b,c,d,e],[a,b,c,d,e],[a,b,c,d,e],[a,b,c,d,e],[a,b,c,d,e]}}
}
,
{名称,
{税种1,{[a,b,c,d,e],[a,b,c,d,e],[a,b,c,d,e[a,b,c,d,e]}},
{税种2,{[a,b,c,d,e],[a,b,c,d,e],[a,b,c,d,e],[a,b,c,d,e],[a,b,c,d,e]}},
{税种2,{[a,b,c,d,e],[a,b,c,d,e],[a,b,c,d,e],[a,b,c,d,e],[a,b,c,d,e]}}
}
}
test.jsp
<%@ page language="java" import="java.util.*" pageEncoding="utf-8"%>
<%@ taglib uri="http://java.sun.com/jsp/jstl/core" prefix="c"%>
<%@ taglib prefix="fn" uri="http://java.sun.com/jsp/jstl/functions"%>
<%
String path = request.getContextPath();
String basePath = request.getScheme() + "://"
+ request.getServerName() + ":" + request.getServerPort()
+ path + "/";
%>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<body>
<%
List list = new ArrayList();
String[] arr1 = new String[] { "a", "b", "c", "d", "e" };
String[] arr2 = new String[] { "a", "b", "c", "d", "e" };
String[] arr3 = new String[] { "a", "b", "c", "d", "e" };
String[] arr4 = new String[] { "a", "b", "c", "d", "e" };
list.add(arr1);
list.add(arr2);
list.add(arr3);
list.add(arr4);
List lista = new ArrayList();
lista.add("增值税-进项");
lista.add(list);
List list1 = new ArrayList();
String[] arr11 = new String[] { "a", "b", "c", "d", "e" };
String[] arr22 = new String[] { "a", "b", "c", "d", "e" };
String[] arr33 = new String[] { "a", "b", "c", "d", "e" };
String[] arr44 = new String[] { "a", "b", "c", "d", "e" };
String[] arr55 = new String[] { "a", "b", "c", "d", "e" };
list1.add(arr11);
list1.add(arr22);
list1.add(arr33);
list1.add(arr44);
list1.add(arr55);
List listb = new ArrayList();
listb.add("增值税-销项");
listb.add(list1);
List listc = new ArrayList();
listc.add("增值税");
listc.add(lista);
listc.add(listb);
List listd = new ArrayList();
listd.add(listc);
//listd.add(listc);
request.setAttribute("listf", listd);
%>
<table border="1" bordercolor="red" style="margin: 0;padding: 0">
<tr>
<td>名称</td>
<td>税种</td>
<td>金额</td>
<td>金额</td>
<td>金额</td>
<td>金额</td>
<td>金额</td>
</tr>
<!-- first loop -->
<c:forEach items="${listf}" var="subList1" >
<!-- get firstRowSpan -->
<c:set var="firstRowSpan" value="0"></c:set>
<c:forEach items="${subList1}" var="subList11" varStatus="s11">
<c:if test="${s11.index>0}">
<c:set var="firstRowSpan" value="${fn:length(subList11[1])+firstRowSpan}"></c:set>
</c:if>
</c:forEach>
<!-- second loop -->
<c:forEach items="${subList1}" var="subList2" varStatus="s1">
<c:if test="${s1.index==0}">
<tr>
<td rowspan="${firstRowSpan}">${subList1[0]}:rowspan:${firstRowSpan}</td>
</c:if>
<c:if test="${s1.index>0}">
<c:forEach items="${subList2}" var="subList22" varStatus="s22">
<c:if test="${s22.index==0}">
<td rowspan="${fn:length(subList2[1])}">${subList2[0]}:rowspan:${fn:length(subList2[1])}</td>
</c:if>
<c:if test="${s22.index>0}">
<c:forEach items="${subList22}" var="subList33" varStatus="s33" >
<c:if test="${s22.index==1}">
<c:forEach items="${subList33}" var="subList44" varStatus="s44" >
<td>${subList44}</td>
</c:forEach>
</tr>
</c:if>
<c:if test="${s22.index>1}">
<tr>
<c:forEach items="${subList33}" var="subList44" varStatus="s44" >
<td>${subList44}</td>
</c:forEach>
</tr>
</c:if>
</c:forEach>
</c:if>
</c:forEach>
</c:if>
</c:forEach>
<!-- second loop -->
</c:forEach>
<!-- first loop -->
</table>
第一个单元格的rowSpan为：${firstLayerSpan}
</body>
</html>