高手帮我看看这段代码把

Question

String meb=response.encodeURL("Jsp1.jsp");不用这句看看

Answer 1

String meb=response.encodeURL("Jsp1.jsp");
这句没有必要,改写成
String meb="Jsp1.jsp";

Answer 2

能将response.sendRedirect("")和out.println()一起使用？？？
把if内部的out.println()语句去掉，ok??????

Answer 3

{ if(message.equals("ok")) //验证通过
          {
                    ServletContext ctx=this.getServletContext();
              String meb=response.encodeURL("Jsp1.jsp");、、跳转到本页面
              response.sendRedirect(meb);//弹出illegalstateException!!!
              out.print(message);
           }
        else
          {out.print(message);
          }
      }

Answer 4

{ if(message.equals("ok")) //验证通过
          {
                    ServletContext ctx=this.getServletContext();
               RequestDispatcher dispatcher=ctx.getRequestDispatcher("/Jsp1.jsp);
                  dispatcher.forward(request,response)
}}