确定由 Matlab 加载的 Java 类的位置 [英] Determine location of a java class loaded by Matlab

问题描述

当使用 Matlab 中的 java 时，有什么方法可以确定从 matlab 的 java 类路径中加载类的位置吗?我正在尝试诊断由同时使用的同一类的冲突版本引起的错误.

When using java from Matlab, is there some way to figure out from where in matlab's java class path is a class being loaded? I'm trying to diagnose a error caused by conflicting versions of the same class being used simultaneously.

具体来说，我正在寻找的类是 org.apache.lucene.store.FSDirectory.好像是matlab工具箱之一用的，不知道是哪个.

Specifically, the class I'm looking for is org.apache.lucene.store.FSDirectory. It seems to be used by one of the matlab toolboxes, but I don't know which one.

推荐答案

来自 http://www.exampledepot.com/egs/java.lang/ClassOrigin.html

// Get the location of this class
  Class cls = this.getClass();
 ProtectionDomain pDomain = cls.getProtectionDomain();
  CodeSource cSource = pDomain.getCodeSource();
  URL loc = cSource.getLocation();  // file:/c:/almanac14/examples/

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