jsp:javax.servlet.jsp.JspException:In <parseDate>,a pa

jsp:javax.servlet.jsp.JspException:In <parseDate>,a parse locale can not be established
javax.servlet.jsp.JspException:In ,a parse locale can not be established
at org.apache.taglibs.standard.tag.common.fmt.ParseDateSupport.doEndTag(ParseDateSupport.java:138)atorg.apache.jsp.sftwap.xhtml.secKill.skProductList_jsp._jspx_meth_fmt_005fparseDate_005f0(skProductList_jsp.java:1655)
atorg.apache.jsp.sftwap.xhtml.secKill.skProductList_jsp._jspx_meth_c_005fif_005f6(skProductList_jsp.java:1619)
atorg.apache.jsp.sftwap.xhtml.secKill.skProductList_jsp._jspx_meth_c_005fif_005f5(skProductList_jsp.java:1579)
atorg.apache.jsp.sftwap.xhtml.secKill.skProductList_jsp._jspx_meth_c_005fif_005f4(skProductList_jsp.java:1546)
at org.apache.jsp.sftwap.xhtml.secKill.skProductList_jsp._jspServi
用的是：
日期格式化的时候出的错,什么原因?