1. 条件标签
JSTL:
2. 迭代标签
JSTL:
3. URL相关标签
JSTL:
解除的疑问,list遍历问题
像这样一个list,里面有3条记录,每条记录包含两个对象,我把结果集(lstRooms)request到了页面,想遍历显示RrmRooms里的id,和RrmRoomType里的name.
我用JSTL实现如下:
待更新...
JSTL:
1
<
c:if
test
="${user.password == 'hello'}"
>
2 < c:choose >
3 < c:when test ="${user.age <= 18}" >
4 < font color ="blue" />
5 </ c:when >
6 < c:when test ="${user.age <= 30 && user.age > 18}" >
7 < font color ="red" />
8 </ c:when >
9 < c:otherwise >
10 < font color ="green" />
11 </ c:otherwise >
12 </ c:choose >
13 </ c:if >
Struts2:
2 < c:choose >
3 < c:when test ="${user.age <= 18}" >
4 < font color ="blue" />
5 </ c:when >
6 < c:when test ="${user.age <= 30 && user.age > 18}" >
7 < font color ="red" />
8 </ c:when >
9 < c:otherwise >
10 < font color ="green" />
11 </ c:otherwise >
12 </ c:choose >
13 </ c:if >
1
<
s:if
test
="#
user.age <
= 18"
>
2 < font color ="blue" />
3 </ s:if >
4 < s:elseif test ="#user.age <= 30 && user.age > 18" >
5 < font color ="red" />
6 </ s:elseif >
7 < font color ="green" />
8 </ s:else >
2 < font color ="blue" />
3 </ s:if >
4 < s:elseif test ="#user.age <= 30 && user.age > 18" >
5 < font color ="red" />
6 </ s:elseif >
7 < font color ="green" />
8 </ s:else >
2. 迭代标签
JSTL:
1
<
c:forEach
var
="user"
items
="${users}"
>
2 < c:out value ="${user.userName}" />
3 </ c:forEach >
4 <!-- 迭代固定次数 -->
5 < c:forEach var ="i" begin ="1" end ="10" step ="3" >
6 < c:out value ="${i}" />
7 </ c:forEach >
8 <!-- 这种循环相当于for(int i=1; i<10; i++), 其中step是指迭代的步长,默认为1. -->
Struts2:
2 < c:out value ="${user.userName}" />
3 </ c:forEach >
4 <!-- 迭代固定次数 -->
5 < c:forEach var ="i" begin ="1" end ="10" step ="3" >
6 < c:out value ="${i}" />
7 </ c:forEach >
8 <!-- 这种循环相当于for(int i=1; i<10; i++), 其中step是指迭代的步长,默认为1. -->
1
<
s:iterator
value
="#users"
status
="stuts"
>
2 < s:if test ="#stuts.odd == true" > <!-- 判断是否为奇数行 -->
3 < s:property value="userName" />
4 </ s:if >
5 < s:else >
6 < s:property value="passWord" />
7 </ s:else >
8 </ s:iterator >
2 < s:if test ="#stuts.odd == true" > <!-- 判断是否为奇数行 -->
3 < s:property value="userName" />
4 </ s:if >
5 < s:else >
6 < s:property value="passWord" />
7 </ s:else >
8 </ s:iterator >
3. URL相关标签
JSTL:
1
<!--
绝对路径
-->
2 < c:import url ="http://127.0.0.1:8080/hello/hello.jsp" />
3 <!-- 相对路径 -->
4 < c:import url ="hello.jsp" />
5 <!-- Encode -->
6 < a href ="<c:url value='hello.jsp'><c:param name='userName' value='cyanbomb' /></c:url>" ></ a >
7 <!-- 传递参数到指定的URL -->
8 < c:import url ="hello.jsp" charEncoding ="gb2312" >
9 < c:param name ="userName" value ="cyanbomb" />
10 </ c:import >
11 <!-- URL重定向 -->
12 < c:redirect url ="${myurl}" />
13 <!-- 构造URL -->
14 < c:url value ="myurl" var ="hello.jsp" scope ="session" >
15 < c:param name ="userName" value ="cyanbomb" />
16 </ c:url >
Struts2:
2 < c:import url ="http://127.0.0.1:8080/hello/hello.jsp" />
3 <!-- 相对路径 -->
4 < c:import url ="hello.jsp" />
5 <!-- Encode -->
6 < a href ="<c:url value='hello.jsp'><c:param name='userName' value='cyanbomb' /></c:url>" ></ a >
7 <!-- 传递参数到指定的URL -->
8 < c:import url ="hello.jsp" charEncoding ="gb2312" >
9 < c:param name ="userName" value ="cyanbomb" />
10 </ c:import >
11 <!-- URL重定向 -->
12 < c:redirect url ="${myurl}" />
13 <!-- 构造URL -->
14 < c:url value ="myurl" var ="hello.jsp" scope ="session" >
15 < c:param name ="userName" value ="cyanbomb" />
16 </ c:url >
1
<
a
href
='<s:url
value
="/hello.jsp"
/>
'
>
Hello
</
a
><
br
/>
2 < s:url id ="url" value ="/hello.jsp" >
3 < s:param name ="name" > cyanbomb </ s:param >
4 </ s:url >
5 < s:a href ="%{url}" > Hello </ s:a >
2 < s:url id ="url" value ="/hello.jsp" >
3 < s:param name ="name" > cyanbomb </ s:param >
4 </ s:url >
5 < s:a href ="%{url}" > Hello </ s:a >
解除的疑问,list遍历问题

像这样一个list,里面有3条记录,每条记录包含两个对象,我把结果集(lstRooms)request到了页面,想遍历显示RrmRooms里的id,和RrmRoomType里的name.
我用JSTL实现如下:
1
<
table
>
2 < c:forEach var ="rm" items ="${lstRooms}" >
3 < tr >
4 < td > ${rm[0].id} </ td >
5 < td > ${rm[1].name} </ td >
6 < tr >
7 </ c:forEach >
8 </ table >
STRUTS2实现如下:
2 < c:forEach var ="rm" items ="${lstRooms}" >
3 < tr >
4 < td > ${rm[0].id} </ td >
5 < td > ${rm[1].name} </ td >
6 < tr >
7 </ c:forEach >
8 </ table >
1
<
table
>
2
<
s:iterator
value
="#lstRooms"
status
="stat"
>
3
<
tr
>
4
<
td
><
s:property
value
="#lstRooms[#stat.index][0].id"
/></
td
>
5
<
td
><
s:property
value
="#lstRooms[#stat.index][1].name"
/></
td
>
6
<
tr
>
7
</
s:iterator
>
8
</
table
>

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8

待更新...