private static String filePath = "E:\\test.txt"; private static void saveAsFileWriter(String content) { FileWriter fwriter = null; try { // true表示不覆蓋原來的內容,而是加到文件的后面。若要覆蓋原來的內容,直接省略這個參數就好 fwriter = new FileWriter(filePath, true); fwriter.write(content); } catch (IOException ex) { ex.printStackTrace(); } finally { try { fwriter.flush(); fwriter.close(); } catch (IOException ex) { ex.printStackTrace(); } } }