java处理错误

如果错误不是Fatal则可以使用

try {      root = OntoNode.load(OntologyExtractor.class.getResourceAsStream(filename));    } catch (IOException e) {      e.printStackTrace;    }

如果错误是Fatal的，则需要让程序终止

try {      root = OntoNode.load(OntologyExtractor.class.getResourceAsStream(filename));    } catch (IOException e) {      LOG.fatal(e, "Failed to load ontology from {}", filename);    }