request請求轉發、response重定向跳轉

1.用request方法將 Servlet01頁面跳轉到Servlet02頁面

 

 

 

public class Servlet01 extends HttpServlet {

    public void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
        //向request01存值
        request.setAttribute("name","詹姆斯");
        //請求轉發
        request.getRequestDispatcher("/Servlet02").forward(request, response);
    }

    public void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
        doGet(request, response);
    }
}

public class Servlet02 extends HttpServlet {

    public void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
        //request02取值  取得是object的值 需要強轉
        String name = (String)request.getAttribute("name");
        //解決響應亂碼
        response.setContentType("text/html;charset=utf-8");
        response.getWriter().write(name);
    }

    public void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
        doGet(request, response);
    }
}

運行結果如下：

 

 2.response重定向跳轉

 

 

 

public class Servlet01 extends HttpServlet {

    public void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
        //跳轉
        response.sendRedirect("/WEB03/Servlet02");
    }

    public void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
        doGet(request, response);
    }
}

public class Servlet02 extends HttpServlet {

    public void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
        response.getWriter().write("okokok");
    }

    public void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
        doGet(request, response);
    }
}

運行結果如下：

 歡迎各位大神指點和評論；