/**//** * 判断字符串是否是空 * * @param string * @return boolean */ public boolean empty(String string) ...{ if (string == null) ...{ return true; } if (string.trim().length() == 0) ...{ return true; } return false; } 1、从文件一行一行读取1.1、 FileReader fileReader = new FileReader(sourcesfilesPath); LineNumberReader lnr = new LineNumberReader(fileReader); String line = lnr.readLine();1.2、BufferedReader in = new BufferedReader(new FileReader(new File(file))); in.readLine()