如何高效操作Properties实现代码优化与性能提升？

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读取resources目录下的properties文件作为properties对象：

javapublic static Properties loadProps(String fileName) { Properties props=null; InputStream is=null; try { is=Thread.currentThread().getContextClassLoader().getResourceAsStream(fileName); props=new Properties(); props.load(is); } catch (IOException e) { e.printStackTrace(); } finally { if (is !=null) { try { is.close(); } catch (IOException e) { e.printStackTrace(); } } } return props;}

读取resources目录下的properties文件为properties对象

public static Properties loadProps(String fileName) { Properties props = null; InputStream is = null; try { is = Thread.currentThread().getContextClassLoader().getResourceAsStream(fileName); if (is == null) { throw new ClassNotFoundException(fileName + " file is not found"); } props = new Properties(); props.load(is); } catch (ClassNotFoundException | IOException e) { e.printStackTrace(); } finally { if (is != null){ try { is.close(); }catch (IOException e){ LOGGER.error("close input stream failure", e); } } } return props; }