外部dtd驗證錯誤：XML解析錯誤

Question

我已經嘗試了所有可以考慮後退和前進的事情，我已經計數並重復記錄了我的lt和gt的一次又一次，但是這個外部dtd文件一直使消息失效：「 XML分析錯誤@line 30（最後一行包含「]>」）：預計開始標記，'<'未找到。「誰能幫我嗎？多謝！

<?xml version="1.0"?> 
<!DOCTYPE items 
[ 
<!ELEMENT items (item+)> 
<!ELEMENT item  (description, country, sellingPrice, cost, quantityOnHand, 
        backorderedAmount, dateLastReceived, quantitySoldYearToDate, 
        warehouseSection, warehouseShelve, remarks, supplier, supplier+)> 
<!ATTLIST item itemNumber ID #REQUIRED>  
<!ELEMENT description (#PCDATA)> 
<!ELEMENT country (#PCDATA)> 
<!ELEMENT sellingPrice  (#PCDATA)> 
<!ATTLIST sellingPrice saleItem (Y|N) #REQUIRED>  
<!ELEMENT cost (#PCDATA)> 
<!ELEMENT quantityOnHand (#PCDATA)> 
<!ELEMENT backorderedAmount (#PCDATA)> 
<!ATTLIST backorderedAmount dateOrdered NMTOKEN #IMPLIED> 
<!ELEMENT dateLastReceived (month, day, year)> 
<!ELEMENT month (#PCDATA)> 
<!ELEMENT day (#PCDATA)> 
<!ELEMENT year (#PCDATA)> 
<!ELEMENT quantitySoldYearToDate (#PCDATA)> 
<!ELEMENT warehouseSection (#PCDATA)> 
<!ELEMENT warehouseShelve  (#PCDATA)> 
<!ELEMENT remarks  (#PCDATA)> 
<!ELEMENT supplier  (number, shipmentLeadTime, supCost)> 
<!ELEMENT number (#PCDATA)> 
<!ELEMENT shipmentLeadTime (#PCDATA)> 
<!ATTLIST shipmentLeadTime unit (days|weeks) #REQUIRED> 
<!ELEMENT supCost (#PCDATA)> 
]> 

Answer 1

既然這是一個外部DTD，那麼您的XML文件中是否也有一個DOCTYPE聲明引用了此DTD？如果是這樣，您需要從DTD中刪除文檔類型。

下面就來嘗試這樣的例子有它註釋掉：

<!--<!DOCTYPE items [--> 
<!ELEMENT items (item+)> 
<!ELEMENT item  (description, country, sellingPrice, cost, quantityOnHand, 
        backorderedAmount, dateLastReceived, quantitySoldYearToDate, 
        warehouseSection, warehouseShelve, remarks, supplier, supplier+)> 
<!ATTLIST item itemNumber ID #REQUIRED>  
<!ELEMENT description (#PCDATA)> 
<!ELEMENT country (#PCDATA)> 
<!ELEMENT sellingPrice  (#PCDATA)> 
<!ATTLIST sellingPrice saleItem (Y|N) #REQUIRED>  
<!ELEMENT cost (#PCDATA)> 
<!ELEMENT quantityOnHand (#PCDATA)> 
<!ELEMENT backorderedAmount (#PCDATA)> 
<!ATTLIST backorderedAmount dateOrdered NMTOKEN #IMPLIED> 
<!ELEMENT dateLastReceived (month, day, year)> 
<!ELEMENT month (#PCDATA)> 
<!ELEMENT day (#PCDATA)> 
<!ELEMENT year (#PCDATA)> 
<!ELEMENT quantitySoldYearToDate (#PCDATA)> 
<!ELEMENT warehouseSection (#PCDATA)> 
<!ELEMENT warehouseShelve  (#PCDATA)> 
<!ELEMENT remarks  (#PCDATA)> 
<!ELEMENT supplier  (number, shipmentLeadTime, supCost)> 
<!ELEMENT number (#PCDATA)> 
<!ELEMENT shipmentLeadTime (#PCDATA)> 
<!ATTLIST shipmentLeadTime unit (days|weeks) #REQUIRED> 
<!ELEMENT supCost (#PCDATA)> 
<!--]>--> 

也看到這個答案在這裏：External referenced DTD in XML

如果這不回答你的問題，請與minimal, complete, and verifiable example更新。