大家帮我看看这个错误,谢谢!
代码是:
<%
String backpage=request.getParameter("topage");
if (backpage!="" )
Session.putValue("backpage",backpage);
%>
错误显示为:
[javac] Since fork is true, ignoring compiler setting.
[javac] Compiling 1 source file
[javac] Since fork is true, ignoring compiler setting.
[javac] C:\Tomcat 4.1\work\Standalone\localhost\_\default_jsp.java:46: cannot resolve symbol
[javac] symbol : variable Session
[javac] location: class org.apache.jsp.default_jsp
[javac] Session.putValue("backpage",backpage);
[javac] ^
[javac] 1 error
请问这是为什么呀?