如何解决在Java / Jena API中打开文件
嗨,我目前正在使用Java和Jena API学习语义网。 打开与我的课程位于同一目录中的文件时出现错误
我的代码:
public class Tuto7 extends Object {
static final String inputFileName = "vc-db-1.rdf";
public static void main(String args[]) throws FileNotFoundException {
// create an empty model
BasicConfigurator.configure();
Model model = ModelFactory.createDefaultModel();
// use the FileManager to find the input file
InputStream in = FileManager.get().open(inputFileName);
System.out.println( in );
if ( in == null) {
throw new IllegalArgumentException("File: " + inputFileName + " not found");
}
System.out.println("After open file");
// read the RDF/XML file
model.read( in,"");
// select all the resources with a VCARD.FN property
ResIterator iter = model.listResourcesWithProperty(VCARD.FN);
if (iter.hasNext()) {
System.out.println("The database contains vcards for:");
while (iter.hasNext()) {
System.out.println(" " + iter.nextResource()
.getrequiredProperty(VCARD.FN)
.getString());
}
} else {
System.out.println("No vcards were found in the database");
}
}
}
错误:Exception in thread "main" java.lang.IllegalArgumentException: File: vc-db-1.rdf not found
NB:文件位于同一目录
解决方法
已由解决
static final String inputFileName ="/Users/macbook/Documents/IntelliJ/projet2020/webSemantique/src/tp1/vc-db-1.rdf";
谢谢
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