GraphDB导入RDF图谱报错：Prolog中不允许包含内容

错误原因分析 #

你遇到的Content is not allowed in prolog错误，核心问题是代码使用了非标准Turtle语法，同时存在格式错误：

1. 用了类似JSON-LD的大括号分组（:moviesInfo {...}），这不是Turtle支持的语法；
2. 引号使用HTML转义字符"，Turtle无法识别；
3. 部分三元组主语延续的语法错误，导致解析器无法识别主语；
4. 若文件带UTF-8 BOM（字节顺序标记），也会导致开头出现非法字符触发错误。

修正后的完整Turtle代码 #

@prefix : <http://buchmann.ro#>. 
@prefix xsd: <http://www.w3.org/2001/XMLSchema#>. 

#some movie directors
:JamesCameron   :directorOf :Avatar, :Terminator;
                :hasName "James Cameron".
:JohnMcT        :directorOf :Predator, :DieHard;
                :hasName "John McTiernan";
                :birthInfo  [   :birthDate "1951-01-08"^^xsd:date;
                                :birthPlace :USA].
:McG            :directorOf _:somemovie;
                :hasName "Joseph McGinty";
                :hasNickname "McG".
:TimBurton      :directorOf :Batman;
                :hasName "Tim Burton";
                :birthPlace :USA.

#some movie actors
:SamWorth       :hasName "Sam Worthington";
                :playedIn _:somemovie;
                :playedTheRole [:asCharacter :JakeSully;
                                :inMovie :Avatar].
:Arnold         :playedIn :Terminator, :Predator;
                :wasGovernorOf :California;
                :hasName "Arnold Schwarzenegger";
                :birthInfo [:birthDate "1947-07-10"^^xsd:date;
                            :birthPlace :Austria].
:LindaH         :hasName "Linda Hamilton";
                :playedTheRole [:asCharacter :SarahConnor;
                                :inMovie :Terminator].
:JackNicholson  :playedIn :Batman;
                :hasName "Jack Nicholson".

#this guy is both actor and director
:ShBlack        :playedIn :Predator;
                :hasName "Shane Black";
                :directorOf :KKBB.

#some movies
:Batman         :hasTitle "Batman".
:Terminator     :hasTitle "Terminator";
                :hasBudget 6400000 .
:Avatar         :hasTitle "Avatar";
                :hasBudget 237000000 .
:DieHard        :hasTitle "Die Hard".
:Predator       :hasTitle "Predator";
                :hasBudget 18000000 .
:KKBB           :hasTitle "Kiss Kiss Bang Bang";
                :hasBudget 15000000 .
_:somemovie     :hasBudget 200000000 .

#some movie characters
:JakeSully      :hasName "Jake Sully".
:SarahConnor    :hasName "Sarah Connor".

#some countries/states
:California     :partOf :USA;
                :hasName "California"@en, "Californie"@fr.
:Austria        :hasName "Austria"@en, "Autriche"@fr.
:USA            :hasName "United States of America"@en, "Etats Unis d'Amerique"@fr.

关键修正点说明 #

• 移除:moviesInfo和:geoInfo的大括号分组：Turtle通过前缀、空白行组织数据，不需要大括号；
• 替换"为英文双引号"：Turtle只识别原生引号，HTML转义字符会被判定为非法内容；
• 修正主语延续语法：同一主语的后续谓语需缩进对齐，用分号;连接，最后用句号.结束三元组；
• 检查文件编码：保存时选择UTF-8无BOM格式，避免开头出现隐藏非法字符。

导入验证 #

将修正后的代码保存为.ttl文件，在GraphDB中选择Turtle格式导入即可正常解析。

内容的提问来源于stack exchange，提问作者Sven Alexander Gal