三种将配置文件读取为InputStream的方法

类名：SequenceReader.java

private static final String FILEPATH="com/readfile/config/filename.properties";

BufferedReader br = new BufferedReader(new InputStreamReader(SequenceReader.class.getClassLoader().getResourceAsStream(FILEPATH)));

BufferedReader br = new BufferedReader(new InputStreamReader(this.getClass().getClassLoader().getResourceAsStream(FILEPATH)));

BufferedReader br = new BufferedReader(new InputStreamReader(Thread.currentThread().getContextClassLoader().getResourceAsStream(FILEPATH)));

InputStream is  = this.getClass().getClassLoader().getResourceAsStream(FILEPATH);