Java 如何比较JSTL中的整数值
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时间：2020-08-12 23:51:38 来源:igfitidea点击:
How to compare integer value in JSTL
提问by user2142786
Hi i'm trying to compare two integer values in jstl it is returning the result false even if the statement is true.
嗨，我正在尝试比较 jstl 中的两个整数值，即使该语句为真，它也会返回结果 false。
here is my code
这是我的代码
String numofcell=(String)request.getAttribute("numberofcell");
int noc = Integer.parseInt(numofcell);
int num = 4;
<c:choose>
<c:when test = "${noc eq num}">
<%=noc%>
hiiiiiiiiiiiii
</c:when>
<c:otherwise>
<%=noc%>
HELLLOOOOOOO
</c:otherwise>
</c:choose>
output is : 4 HELLLOOOOOOO
输出为：4 HELLLOOOOOOO
回答by Masudul
You missed EL symbol ${}, Try,
你错过了 EL 符号${}，试试吧，
<c:set var="noc" value="<%=noc%>"/>
<c:set var="num" value="<%=num%>"/>
.....
<c:when test = "${noc eq num}">
.........
回答by Foolish
String numofcell="4";
int noc = Integer.parseInt(numofcell);
int num = 4;
<c:choose>
<c:when test = "noc eq num">
<%=noc%>
hiiiiiiiiiiiii
</c:when>
<c:otherwise>
<%=noc%>
HELLLOOOOOOO
</c:otherwise>
</c:choose>
This code giving output : 4 hiiiiiiiiiiiii 4 HELLLOOOOOOO
此代码给出输出：4 hiiiiiiiiiiiii 4 HELLLOOOOOOO
回答by Zigri2612
String numofcell="4";
int noc = Integer.parseInt(numofcell);
int num = 4;
pageContext.setAttribute("noc",noc);
pageContext.setAttribute("num",num);
<c:choose>
<c:when test = "${noc eq num}">
<%=noc%>
hiiiiiiiiiiiii
</c:when>
<c:otherwise>
<%=noc%>
HELLLOOOOOOO
</c:otherwise>
</c:choose>
