Requires that an attribute name is preceded by whitespace exception Summary

At tomcat7.0, an exception is reported:

Org. Apache. Jasper. jasperexception:/head. jsp (1, 84) the JSP specification requires that an attribute name is preceded by whitespace

Head. jsp I used <JSP: Include page = "head. introduced by JSP "Flush =" true "/>, In the tomcat6.0 environment, the above exception is not reported, but the exception is reported in tomcat7.0. Later, I checked the head carefully. the first line of the JSP file. I actually missed a space,

<% @ Page Language = "Java" contenttype = "text/html; charset = UTF-8" pageencoding = "UTF-8" %>

A space is missing before pageencoding. Correct and run again. OK!

This exception indicates that space is required before some attributes in JSP and will not be reported under Tomcat 6.