<%@taglib uri="http://java.sun.com/jsp/jstl/core" prefix="c" %>
<%request.setParameter("user","x");
%><c:if test="<%= request.getParameter("user") != null%>">
hello, <%= request.getParameter("user")%>
</c:if>我想输出结果是 hello,x这样传值怎么不行,应该怎么写,谢谢
<%request.setParameter("user","x");
%><c:if test="<%= request.getParameter("user") != null%>">
hello, <%= request.getParameter("user")%>
</c:if>我想输出结果是 hello,x这样传值怎么不行,应该怎么写,谢谢
hello, <%= request.getParameter("user")%>
在<body>里
hello,<%=request.getAttribute("user") %>