Java io流讀取拷貝中文字符txt文件

package IO;

import java.io.*;

public class test {

	public static void main(String[] args) throws IOException {
		FileInputStream fis = new FileInputStream("D://1.txt");
		InputStreamReader isr=new InputStreamReader(fis,"GB2312");
		BufferedReader br = new BufferedReader(isr);
		
		FileOutputStream fos =new FileOutputStream("E://2.txt");
		OutputStreamWriter osw = new OutputStreamWriter(fos,"GB2312");
		BufferedWriter bw =new BufferedWriter(osw);
		
		
		int i=0;
		while((i=br.read())!=-1){
			bw.write(i);
		}
		bw.close();
		br.close();
		

	}

}

FileWriter和FileReader不能識別中文字符。