String charEncoding = "UTF-8"; String path = request.getRealPath("/body/js/district.js"); StringBuilder sbl = new StringBuilder(); String end = ""; InputStreamReader isr = null; BufferedReader bufferedReader = null; try { isr = new InputStreamReader(new FileInputStream(path), charEncoding); bufferedReader = new BufferedReader(isr); if ((end = bufferedReader.readLine()) != null) { sbl.append(end); } } catch (FileNotFoundException ex) {ex.printStackTrace(); ex.printStackTrace(); } catch (IOException ex) { ex.printStackTrace(); }finally{ if(isr != null){ try { isr.close(); bufferedReader.close(); } catch (IOException e) { e.printStackTrace(); } } if(bufferedReader != null){ try { bufferedReader.close(); } catch (IOException e) { e.printStackTrace(); } } } String newStr = AddressDeal.getNewPcdStr(); String content = sbl.toString(); int start = content.indexOf("var allDists="); String newCont = content.substring(0,start); newCont += "var allDists="+newStr+";"; FileOutputStream fos = null; OutputStreamWriter writer= null; try { fos = new FileOutputStream(new File(path)) ; writer = new OutputStreamWriter(fos,charEncoding); writer.write(newCont); }catch (IOException ex) { ex.printStackTrace(); }finally{ if(writer != null){ try { writer.close(); } catch (IOException e) { e.printStackTrace(); } } if(fos != null){ try { fos.close(); } catch (IOException e) { e.printStackTrace(); } } }
java读取写入文件指定编码
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转载自yangchunhe.iteye.com/blog/1481610
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