InputStreamReader的中文乱码的问…

ServerSocket serverSocket = new ServerSocket(5432);

Socket client2 = serverSocket.accept();

String str="";

BufferedReaderinput = new BufferedReader(newInputStreamReader(client2.getInputStream(),"gb2312"));

String tempString ="";

       

 // 一次读入一行，直到读入null为文件结束

while ((tempString = input.readLine()) !=null) 

{

str+=tempString+"\n";

}           

input.close();