dom4j解析xml的问题

Question

我在解析xml文件时出现了“The prefix "ns" for element "ns:Collection" is not bound.”问题，是不是xml文件格式有问题。xml文件如下：

<?xml version="1.0" encoding="UTF-8"?>
ns:Collection

ns:SystemCodeSYS_PRODUCT/ns:SystemCode
ns:TodoName延时审批/ns:TodoName
ns:TodoCount1/ns:TodoCount
ns:TodoURL http://eis.sz.gpgc.local/web/defectDelayAuditList.do?pMenu=yes/ns:TodoURL
ns:TargetMM_Content/ns:Target
/ns:item
/ns:Collection

Answer 1

<?xml version="1.0" encoding="UTF-8"?>


ns:SystemCodeSYS_PRODUCT/ns:SystemCode
ns:TodoNameʱ/ns:TodoName
ns:TodoCount1/ns:TodoCount
ns:TodoURL http://eis.sz.gpgc.local/web/defectDelayAuditList.do?pMenu=yes/ns:TodoURL
ns:TargetMM_Content/ns:Target
/ns:item
/ns:Collection