| 标题 | 在JSP 中使用 JSTL 按不同条件输出内容 |
| 内容 | 在JSP 中使用 JSTL 按不同条件输出内容 <%@ page language="java" contentType="text/html;charset=UTF-8" %> <%@ taglib uri="/WEB-INF/tld/c-rt.tld" prefix="c-rt" %> <html> <head> <title>Java Code Geeks Snippets - Conditional Content with JSTL in JSP Page</title> </head> <body> <%-- 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> </body> |
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