怎样控制传送方向？一定要传送序列化对象吗？
这样怎么不行:
ByteArrayOutputStream byteStream=new ByteArrayOutputStream(7000);
PrintWriter out=new PrintWriter(byteStream,true);
out.write("ok");
byteStream.writeTo(response.getOutputStream());
response.sendRedirect("http://ip:port/service/testservlet");
