JSP中使用JSTL按不同條件輸出內(nèi)容的方法

%@ page language="java" contentType="text/html;charset=UTF-8" %>
%@ taglib uri="/WEB-INF/tld/c-rt.tld" prefix="c-rt" %>
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head>
 title>Java Code Geeks Snippets - Conditional Content with JSTL in JSP Page/title>
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 %-- if condition --%>
 c-rt:if test='${param.myparam1 == "myvalue1"}'>
  This is printed if parameter "myparam1" equals "myvalue1" /br>
 /c-rt:if>
 %-- if/else condition --%>
 c-rt:choose>
  c-rt:when test='${param.myparam2 == "myvalue2"}'>
   This is printed if parameter "myparam2" equals "myvalue2" /br>
  /c-rt:when>
  c-rt:otherwise>
   This is printed if parameter "myparam2" DOES NOT equal "myvalue2" /br>
  /c-rt:otherwise>
 /c-rt:choose>
 %-- multiple conditions --%>
 c-rt:choose>
  c-rt:when test='${param.myparam3 == "0"}'>
   This is printed if parameter "myparam1" equals 0 /br>
  /c-rt:when>
  c-rt:when test='${param.myparam3 == "1"}'>
   This is printed if parameter "myparam1" equals 1 /br>
  /c-rt:when>
  c-rt:otherwise>
   This is printed for any other value of the parameter /br>
  /c-rt:otherwise>
 /c-rt:choose>
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