java执行cmd命令，返回结果中文乱码问题解决

BufferedReader br=null;
try {
Process p=Runtime.getRuntime().exec("net user");
br=new BufferedReader(new InputStreamReader(p.getInputStream(), Charset.forName("GBK")));
String line=null;
while((line=br.readLine())!=null){
System.out.println(line);
}
} catch (IOException e) {
e.printStackTrace();
}finally{
if(br!=null){
try{
br.close();
}catch(Exception e){
e.printStackTrace();
}
}
}