我是个JSP的初学者，今天碰到个问题非常头疼。。页面不能跳转，数据提交到数据库正常，出个这样的错：java.lang.IllegalStateException: Cannot forward after response has been committed
它的意思好象是不能在响应提交之后跳转。。。怎么都搞不好，望各位高手帮忙出出主义
代码如下：
package bookshop;
import javax.servlet.*;
import javax.servlet.http.*;
import java.io.*;
import java.util.*;
import java.sql.*;
public class submitServlet extends HttpServlet {
private static final String CONTENT_TYPE = "text/html; charset=GBK ";
//Initialize global variables
public void init() throws ServletException {
}
//Process the HTTP Get request
public void doGet(HttpServletRequest request, HttpServletResponse response) throws
ServletException, IOException {
}
public void doPost(HttpServletRequest request, HttpServletResponse response) throws
ServletException, IOException {
doGet(request, response);
response.setContentType(CONTENT_TYPE);
PrintWriter out = response.getWriter();
request.setCharacterEncoding( "GBK ");
response.setCharacterEncoding( "GBK ");
HttpSession session1 = request.getSession(false);
orderBean order = (orderBean) session1.getAttribute( "order ");
String LoginName = (String) session1.getAttribute( "LoginName ");
Integer number1;
String pay1 = request.getParameter( "pay ");
String carry1 = request.getParameter( "carry ");
String bz1 = request.getParameter( "bz ");
order.setPay(pay1);
order.setCarry(carry1);
order.setBz(bz1);
String username = order.getUserName();
System.out.println(username);
String address = order.getAddress();