我是 jstl 的新手,我需要帮助在 jsp 上获取 url 字符串参数,该参数还包含从数据库检索的对象的迭代列表中的 EL 标记。有人可以告诉我如何修复下面的代码,以便下面的代码行填充我要求的实际数字${param.spid}:
<a href="create-course-summary?spid="${param.spid}>add</a>
这是背景:
我正在调用具有以下 url 模式的 servlet:
view-course-summaries?spid=1
doGet
这会在 servlet 中 调用以下方法:
protected void doGet(HttpServletRequest req, HttpServletResponse resp)
throws ServletException, IOException {
String spidString = req.getParameter("spid");
Long spid = new Long(spidString);
List<CourseSummary> coursesummaries = new CourseSummaryDAO().findAllCS(spid);
req.setAttribute("coursesummaries", coursesummaries);
jsp.forward(req, resp);
}
并返回以下jsp:
<%@taglib uri="http://java.sun.com/jsp/jstl/core" prefix="c" %>
<%@ include file="admintop.inc" %>
<table>
<tr>
<td>Name of School (Course Provider):</td>
<td>will go here</td>
</tr>
<tr><td colspan=2>
<a href="create-course-summary?spid="${param.spid}>add</a>
</td>
</tr>
<tr>
<td colspan=2>
<table>
<tr>
<th>Type</th>
<th>Number</th>
<th>id</th>
</tr>
<c:forEach varStatus="loopCounter" items="${coursesummaries}" var="coursesummary">
<tr>
<td>
<c:out value="${coursesummary.coursetype}" />
</td>
<td>
<c:out value="${coursesummary.numunits}" />
</td>
<td>
<c:out value="${coursesummary.id}" />
</td>
</tr>
</c:forEach>
</table>
</td>
</tr>
</table>
<%@ include file="adminbottom.inc" %>