java打开txt

public static void loadFile(String filePath) {
    List<String> strList = new ArrayList<String>();
    File file = new File(filePath);
    if (!file.exists()) {
        return;
    }
    try {
        InputStream instream = new FileInputStream(file);
        if (instream != null) {
			//防止中文乱码：ANSI对应gb2312，utf-8对应utf-8
            InputStreamReader inputreader = new InputStreamReader(instream, "gb2312");
            BufferedReader buffreader = new BufferedReader(inputreader);
            String line;
            while ((line = buffreader.readLine()) != null) {
                strList.add(line);//追行读取
            }
            instream.close();
        }
    } catch (IOException e) {
		System.out.println(e.getMessage());
        return;
    }
}