Java指定编码格式读写文件

//读文件
public static String ToString(File file){
String result = "";
try{
BufferedReader br = new BufferedReader(new InputStreamReader(
new FileInputStream(file), "utf-8"));//构造一个BufferedReader类来读取文件
String s = null;
while((s = br.readLine())!=null){//使用readLine方法，一次读一行
result = result + "\n" +s;
}
br.close();
}catch(Exception e){
e.printStackTrace();
}
return result;
}

//写文件

public static void toFile(String path,String text){
FileOutputStream fos=null;
try {
fos=new FileOutputStream(path);
fos.write(text.getBytes("UTF-8"));
fos.flush();

} catch (Exception e) {
// TODO Auto-generated catch block
e.printStackTrace();
} finally{
try {
if(fos!=null){
fos.close();
}
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
}