JSP not rendering properly in Tomcat

问题

I have a JSP page running in Tomcat that is not rendering properly. Here is what helloworld.jsp looks like:

<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<%@ taglib uri="cms-taglib" prefix="cms" %>
<html>
  <head>
    <title>${content.title}</title>
  </head>
  <body>
    <cms:mainBar
       dialog="my-page-properties-dialog"
       label="Page Properties"
       adminButtonVisible="true"/>
    <h1>${content.title}</h1>
    <p>Hello Magnolia World !</p>

    Current time: <%= new java.util.Date() %>
    <%-- JSP Comment --%>

  </body>
</html>

and the final output is like this:

<%@ page contentType="text/html;charset=UTF-8" language="java" %> <%@ taglib uri="cms-taglib" prefix="cms" %> Hello Magnolia World!

Hello Magnolia World ! Current time: <%= new java.util.Date() %> <%-- JSP Comment --%>

In short, it seems like only the expression ${content.title} is evaluated and rendered fine but everything else like the page directives, other JSP expressions and JSP comments are not.

I'm using a CMS that comes with Tomcat but the JSP templates samples from the distribution seem fine. I suppose it's something wrong from the code I written above.

Update: I've fixed the closed tag for the date expression and the comment. However, the page directives aren't being parsed.

回答1:

I think there are problem with your jsp comment.

It should look like below. Are you not using IDE to develop your jsp? Your IDE should tell you when you have syntax error.

<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<%@ taglib uri="cms-taglib" prefix="cms" %>
<html>
  <head>
    <title>${content.title}</title>
  </head>
  <body>
    <cms:mainBar
       dialog="my-page-properties-dialog"
       label="Page Properties"
       adminButtonVisible="true"/>
    <h1>${content.title}</h1>
    <p>Hello Magnolia World !</p>

    Current time: <%= new java.util.Date() %>
    <%-- JSP Comment --%>

  </body>
</html>

回答2:

I found the problem. It's a stupid mistake on my end. Even though I fixed the correct JSP syntax and had the jsp extension, I needed to tell the CMS engine to explicitly render that one template as JSP. Thanks everyone for catching my syntax error though. I suppose it's something to watch out for when working with other frameworks.

回答3:

The java scriplet <%= new java.util.Date() % is also not closed properly (<%= new java.util.Date() %>) plus like gigadot stated, the <%-- JSP Comment --% is not closed properly <%-- JSP Comment --%>.

Regards,