forward的细节(2)

package request;import java.io.IOException;import javax.servlet.ServletException;import javax.servlet.http.HttpServlet;import javax.servlet.http.HttpServletRequest;import javax.servlet.http.HttpServletResponse;//forward的细节：forward时，会清空response中的数据public class RequestDemo7 extends HttpServlet {    public void doGet(HttpServletRequest request, HttpServletResponse response)            throws ServletException, IOException {        String data = "aaaaaaaa";        response.getWriter().write(data);        request.getRequestDispatcher("/index.jsp").forward(request, response);    }    public void doPost(HttpServletRequest request, HttpServletResponse response)            throws ServletException, IOException {        doGet(request, response);    }}

结果显示:

forward的细节：forward时，会清空response中的数据