String content = ""; //文件内容字符串 //----FilePath 为文件全路径------------- public String ReadTxtFileToString(String FilePath ) { //获取文件编码 String codeformat = getCodeFormat( FilePath ).trim(); if ( codeformat.equals("") ) { 1. 读取文本文件的方法 2. //-------把文本文件读入 String, 字符串之间的分隔符为 '\n\------ 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13. 14. 15. 16. 17. 18. FileInputStream fis = new FileInputStream( file ); BufferedReader reader = new BufferedReader(new File file = new File( FilePath ); } //打开文件 try { codeformat = "GBK"; InputStreamReader(fis, codeformat)); String line; //分行读取 while ( ( line = reader.readLine()) != null ) { content += line + "\n"; } fis.close(); reader.close(); } catch ( java.io.FileNotFoundException e ) { Log.i( tag, FilePath + " 不存在。"); } catch (IOException e) { Log.i( tag, "FileOperate 271 error= " + e.getMessage() ); 19. 20. 21. 22. 23. 24. 25. 26. 27. 28. 29. 30. 31. 32. } return content; } 2.判断文本文件的编码格式-------------- public String getCodeFormat(String filepath) { String codeformat = ""; File file = new File(filepath); BufferedReader reader; String text = ""; byte[] first3bytes = new byte[3]; FileInputStream fis = null; BufferedInputStream in = null; try{ 

fis = new FileInputStream(file); in = new BufferedInputStream(fis); in.mark(4); in.read(first3bytes); in.reset(); }catch(IOException ex){ try{ in.close(); fis.close(); }catch(Exception ey){} } try{ in.close(); fis.close(); }catch(Exception ey){} "utf-8")); 0xFE) { 0xFF) { 0xFF) { if(first3bytes[0] == (byte) 0xEF && first3bytes[1] == (byte) 0xBB &&first3bytes[2] == (byte) 0xBF) {// utf-8 codeformat = "utf-8"; //reader = new BufferedReader(newInputStreamReader(in, }else if (first3bytes[0] == (byte) 0xFF && first3bytes[1] == (byte) codeformat = "unicode"; //reader = new BufferedReader(new InputStreamReader(in,"unicode")); }else if (first3bytes[0] == (byte) 0xFE &&first3bytes[1] == (byte) codeformat = "utf-16be"; //reader = new BufferedReader(newInputStreamReader(in,"utf-16be")); }else if (first3bytes[0] == (byte) 0xFF &&first3bytes[1] == (byte) codeformat = "utf-161e"; //reader = new BufferedReader(newInputStreamReader(in,"utf-16le")); //reader = new BufferedReader(newInputStreamReader(in, "GBK")); }else { codeformat = "GBK"; } return codeformat; } 

3. 读取文本文件并把内容保存到字符串数组 String flph = “/mnt/sdcard/files/test.txt”; String[] sar = ReadTxtFileToString( flph).split(“\\n”);