如何使用Struts 1标签检查文件是否存在？

Question

I need to check if the html file is present on certain path, if not, a message needs to be displayed.

Is there any tag definition in Struts 1 which facilitates to check file existence?

Answer 1

//filePath taken from bean variable on struts
boolean fileExists = new java.io.File(getServletContext().getRealPath("/")+java.io.File.separator+filepath).exists();
if(fileExists)
{
%>
<jsp:include page='<%=correct.toString()%>' /> <br />
<%
}
else
{   
%>
<jsp:include page='<%="/html/error/error.html"%>' /> <br />
<%
}
%>

A strategy of this kind works. The purpose of asking this question was only to research whether struts offers such concept. Unfortunately, some reviewers demoted this question to negative. Really disgusting platform stackoverflow is wrt knowledge gathering.