将一个GBK编码的文本文件转存为一个UTF-8编码的文本文件。

public class ChangeEncoding {

public static void changeEncoding (String inEncoding, String outEncoding,

String inFileName, String outFileName)  throws IOException {

BufferedReader reader = new BufferedReader(

new InputStreamReader(

new FileInputStream(inFileName), inEncoding));

BufferedWriter writer = new BufferedWriter(

new OutputStreamWriter(

new FileOutputStream(outFileName), outEncoding));

String s = null;

while ((s = reader.readLine()) != null) {

writer.write(s, 0, s.length());

writer.newLine();

}

writer.flush();

writer.close();

reader.close();

}

public static void main(String[] args) {

try {

changeEncoding("GBK", "UTF-8", "gbk.txt", "utf8.txt");

} catch (IOException e) {

System.out.println("转换失败，原因：" + e.getMessage());

}

}

}