耶拿fileManager找不到文件? [英] Jena fileManager cannot find file?

问题描述

我使用Jena FileManager从本地rdf文件加载模型. Java代码可以在Eclipse中正确运行.但是，当我从matlab调用此java类时.

I use Jena FileManager to load a model from a local rdf file. The java code run correctly in Eclipse. But when I call this java class from matlab.

部分源代码如下:

public static Set<String> getSubjectsRelatedToProperty(String filePath) throws IllegalArgumentException, URISyntaxException {
        // read the resourceMap
        FileManager fm = FileManager.get();
        model = fm.loadModel(filePath);
        return result_set;
    } 

我收到的错误附在下面.

The error I received is attached below.

--------------
Error Details:
--------------
Error using org.mycom/view (line 961)
Java exception occurred: 
com.hp.hpl.jena.shared.NotFoundException: Not found: /Users/runs/1/abc.rdf

    at com.hp.hpl.jena.util.FileManager.readModelWorker(FileManager.java:378)
    at com.hp.hpl.jena.util.FileManager.loadModelWorker(FileManager.java:297)
    at com.hp.hpl.jena.util.FileManager.loadModel(FileManager.java:248)
    at org.mycom.QueryResourceMap.getSubjectsRelatedToProperty(QueryResourceMap.java:32)

推荐答案

eclipse项目的根目录与matlab项目的位置不同.那是我唯一想到的问题.您提供的文件路径/Users/runs/1/abc.rdf包含一个斜杠，这表示文件搜索从应用程序的根目录开始.我可能只给出一个绝对文件路径，例如C:/example/example/abc.rdf.这样，无论您将文件路径指定给哪个程序，都可以找到该文件.

The root directory for your eclipse project is in a different location than your matlab project. That's the only problem i can think of. The file path you give, /Users/runs/1/abc.rdf, contains a leading slash, which means the file search starts from the root directory of the application. I would probably just give an absolute file path, like C:/example/example/abc.rdf.This way you can find the file no matter what program you give the file path to.

或者，只需在Matlab目录中手动创建文件路径.因此，转到您的matlab项目根目录，并创建一个Users文件夹，然后创建一个runs文件夹，等等...

Or, just manually create your file path within the Matlab directory. So go to your matlab project root directory and create a Users folder, then a runs folder, etc...

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