Java 读写 中文文档

public void testRW() throws Exception {

File file = new File("e://123.xml");

InputStreamReader read = new InputStreamReader(
new FileInputStream(file), "UTF-8");

BufferedReader reader = new BufferedReader(read);

String line;

StringBuffer filecontent = new StringBuffer();

while ((line = reader.readLine()) != null) {
System.out.println(line);
}

File f = new File("e://321.xml");

if (!f.exists()) {

f.createNewFile();

}

OutputStreamWriter write = new OutputStreamWriter(new FileOutputStream(
f), "UTF-8");

BufferedWriter writer = new BufferedWriter(write);

writer.write(filecontent.toString());

writer.close();

}