java 如何将参数传递给 jsp:include
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how to Pass param to jsp:include
提问by Sureshkumar Menon
This is my part of jsp file.i am struggling to set param value to SalesClientDetails.jsp.i am not using this style <% %>. How to pass param i tried using jsp:expression but no success.
这是我的 jsp 文件的一部分。我正在努力将参数值设置为 SalesClientDetails.jsp。我没有使用这种样式 <% %>。如何传递参数我尝试使用 jsp:expression 但没有成功。
<jsp:scriptlet>
if (request.getParameter("clientid") != null) {
String clientid = request.getParameter("clientid");
</jsp:scriptlet>
<jsp:include page="SalesClientDetails.jsp">
<jsp:param name="clientid" value= />
</jsp:include>
<jsp:scriptlet>
}
</jsp:scriptlet>
回答by BalusC
Simple, do not use scriptlets, also not in flavor of JSP tags. Use JSTL/EL.
简单，不使用scriptlet，也不具有JSP 标签的风格。使用JSTL/ EL。
<c:if test="${not empty param.clientid}">
<jsp:include page="SalesClientDetails.jsp" />
</c:if>
And in the SalesClientDetails.jspjust get it by
而在SalesClientDetails.jsp刚刚得到它
${param.clientid}
回答by Anon
You've created the variable clientIdwithin a scriptlet, which means that it's a Java variable (versus a value in the page context). So you have to retrieve it with <%= %>:
您已经在clientIdscriptlet 中创建了变量，这意味着它是一个 Java 变量（相对于页面上下文中的值）。因此，您必须使用以下命令检索它<%= %>：
<jsp:param name="clientid" value="<%=clientId%>" />
