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异常信息：org.apache.jasper.JasperException: /pages/selectedCourse.jsp (line: 4, column: 39) The JSP specification requires that an attribute name is preceded by whitespace
--这个我简直要报警了，就少了个空格！
The JSP specification requires that an attribute name is preceded by whitespace--异常
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原文地址：http://www.cnblogs.com/ql211lin/p/4520316.html
