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나는이 XML 파일을 가지고, 나는 이러한 쿼리 찾으려 : 사진 하나 개 이상의 사진이 XPath 쿼리 - 부울 조건은
- 모든 책을
- 모든
0,123,516 : "래리 니븐"로 책을 쓴 저자는<?xml version="1.0" encoding="UTF-8"?> <!DOCTYPE inventory SYSTEM "books.dtd"> <inventory> <book num="b1"> <title>Snow Crash</title> <author>Neal Stephenson</author> <publisher>Spectra</publisher> <price>14.95</price> <chapter> <title>Snow Crash - Chapter A</title> <paragraph> This is the <emph>first</emph> paragraph. <image file="firstParagraphImage.gif"/> afetr image... </paragraph> <paragraph> This is the <emph>second</emph> paragraph. <image file="secondParagraphImage.gif"/> afetr image... </paragraph> </chapter> <chapter> <title>Snow Crash - Chapter B</title> <section> <title>Chapter B - section 1</title> <paragraph> This is the <emph>first</emph> paragraph of section 1 in chapter B. <image file="Chapter_B_firstParagraphImage.gif"/> afetr image... </paragraph> <paragraph> This is the <emph>second</emph> paragraph of section 1 in chapter B. <image file="Chapter_B_secondParagraphImage.gif"/> afetr image... </paragraph> </section> </chapter> <chapter> <title>Chapter C</title> <paragraph> This chapter has no images and only one paragraph </paragraph> </chapter> </book> <book num="b2"> <title>Burning Tower</title> <author>Larry Niven</author> <author>Jerry Pournelle</author> <publisher>Pocket</publisher> <price>5.99</price> <chapter> <title>Burning Tower - Chapter A</title> </chapter> <chapter> <title>Burning Tower - Chapter B</title> <paragraph> This is the <emph>second</emph> paragraph of chapter B in the 2nd book. <image file="Burning_Tower_Chapter_B_secondParagraphImage.gif"/> afetr image... </paragraph> </chapter> </book> <book num="b3"> <title>Zodiac</title> <author>Neal Stephenson</author> <publisher>Spectra</publisher> <price>7.50</price> <chapter> <title>Zodiac - Chapter A</title> </chapter> </book> <!-- more books... --> </inventory>
여기
은 XML이다
그리고 여기 내 답변입니다 :
1. /inventory/book[count(image)=1]/title
2. /inventory/book[count(image)>=1/title
3. /inventory/book[author=”Larry Niven”][count(author)>1]/author
하지만 자바 XPath는 코드이 답변을 테스트 할 때, 그것은 작동하지 않습니다.
어디에서 실수가 있습니까? 감사