java 读文件中文乱码

 

读：InputStreamReader isr=new InputStreamReader(new FileInputStream(file), "utf-8");
 BufferedReader bReader=new BufferedReader(isr);

写：BufferedWriter bufferWritter =new BufferedWriter(new OutputStreamWriter(new FileOutputStream(nodenewfile),"utf-8" ));
           bufferWritter.write("test begin"+System.getProperty("line.separator"));