java swing按行读取文本文件，防止乱码

	public String readALine(String file) throws Exception {
		InputStream is = this.class.getResourceAsStream(file);
		InputStreamReader isr = new InputStreamReader(is, "UTF-8");
		BufferedReader br = new BufferedReader(isr);
		String line = "";
		while ((line = br.readLine()) != null) {//下面做处理
		}
	}