Java读文件 带前缀过滤

private static List<String> loadData(File file, String prefix) {List<String> contentList = new ArrayList<String>();if(!file.isFile()) {return null;}BufferedReader reader = null;try {reader = new BufferedReader(new FileReader(file));String line = null;while ((line = reader.readLine()) != null) {line = line.trim();if("".equals(line)) continue;if(line.startsWith(prefix)) {contentList.add(line);}}} catch (Exception e) {e.printStackTrace();}return contentList;}

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