可以使用fmt
<%@   taglib   prefix="fmt"   uri="http://java.sun.com/jstl/fmt"   % >

出现错误
javax.servlet.ServletException: org.apache.jasper.JasperException: /home.jsp(81,9) According to TLD or attribute directive in tag file, attribute value does not accept any expressions

改为:
<%@ taglib uri="http://java.sun.com/jstl/fmt_rt" prefix="fmt" %>

PS:classpath中必须加入standard.jar和jstl.jar


<fmt:formatDate pattern="yyyy-mm-dd" value="${content.logPosttime }"/>