xml - HTML 开始时查询意外结束？

Question

我正在执行一个无需 HTML 即可运行的查询，但当我添加 HTML 时，可以更好地组织结果。当我添加<div>时和</div>标签，我收到错误(见下文)。这是查询:

let $doc := doc('test')  
for $v in $doc//item 
where $v/product_info/unit[.='9291']
return 
  <div>{ $v/seller_info/seller_company_id[position() lt 2]/text() } 
  </div> 
  <div>{ $v/seller_info/seller_rating[position() lt 3]/text() 
  </div>

在此文档中:

<item>
<item_number>1171270</item_number>
<seller_info>
<seller_company_id>6356</seller_company_id>
<seller_rating>C31</seller_rating>
<seller_rating>T150 hr.</seller_rating>
</seller_info>
<product_info>
<unit>2022</unit>
<sinfo>55 cases</sinfo>
<sinfo>Yu-gi-oh trading card pack</sinfo>
<sinfo>.45kg per unit</sinfo>
<sinfo>24.7500kg shipment</sinfo>
</product_info>
<product_info>
<unit>9291</unit>
<sinfo>7 units</sinfo>
<sinfo>Naruto, Classic, action figure</sinfo>
<sinfo>1.8kg per unit</sinfo>
<sinfo>12.6kg shipment</sinfo>
</product_info>
</item>

我收到的错误:

Stopped at line 4, column 85: [XPST0003] Unexpected end of query: '>{ $v/seller_in...'

Answer 1

当您想要返回多个元素时，您必须将它们包装在一个序列中。此外，您忘记了结束语 }在第二个<div/> .

let $doc := doc('test')  
for $v in $doc//item 
where $v/product_info/unit[.='9291']
return 
(
  <div>{ $v/seller_info/seller_company_id[position() lt 2]/text() } 
  </div>,
  <div>{ $v/seller_info/seller_rating[position() lt 3]/text() }
  </div>
)