结果重定向不适用于 jsp

我在我的servlet中得到了一个ping结果。我正在尝试将其重定向到另一个 jsp 文件。

将打开用于输出的 JSP 文件。但里面什么也没表现出来。

这是我的 servlet 主代码

protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
    // TODO Auto-generated method stub
        String ip = request.getParameter("ip"); 
        response.setContentType("text/html");
        PrintWriter out = response.getWriter();
    //  out.println("The ip address is:"+ip+"n");
        String result = pingTest(ip);
        out.println(result);
        String redirect = "Output.jsp";
        RequestDispatcher view = request.getRequestDispatcher(redirect);//Is it good approach to redirect request in ajax based servlet?
        view.forward(request, response);
        }

这是我的输出.jsp页面

<%@ page language="java" contentType="text/html; charset=UTF-8"
    pageEncoding="UTF-8"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>Ping Check Result</title>
</head>
<body>
</body>
</html

我需要在输出中添加任何内容吗.jsp？

在你的 servlet 中：

request.setAttribute("result", result);
request.getRequestDispatcher("/WEB-INF/Output.jsp").forward(request, response);

在您的 JSP 中：

<pre>The data from servlet: ${result}</pre>

你的servlet必须是：

    protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
            String ip = request.getParameter("ip"); 
            response.setContentType("text/html");
            PrintWriter out = response.getWriter();
            out.println("The ip address is:"+ip+"n");
            String result = pingTest(ip);
            out.println(result);        
            RequestDispatcher view = request.getRequestDispatcher();
            view.forward(request, response);
     }

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