JSPì?×a·?ê?

ò?￡oRequestDispatcher.forward()

       ê??ú·t???÷???e×÷ó?￡?μ±ê1ó?forward()ê±￡?Servlet engine ′?μYHTTP???ó′óμ±?°μ?Servlet  or jsp  μ?áííaò???Servlet JSP ?ò??í¨HTML???t

       ?éò???DD2?êy′?μY è?￡o

RequestDispatcher rd = context.getRequestDispatcher("/jsp/forward.jsp?name=zhangsan"); 

RequestDispatcher rd = context.getRequestDispatcher("/F?name=jingjing"); 

             ???¨?òoó?ˉàà?÷μ??·à?URL2?±?

<p>     ày￡o?úservlet?D??DD???¨?ò</p><p>          </p><pre class="java" name="code">public void doPost(HttpServletRequest request, HttpServletResponse response) 

            throws ServletException, IOException { 

        response.setContentType("text/html"); 

        ServletContext context = getServletContext(); 

        //forward()μ?jsp  

        RequestDispatcher rd = context.getRequestDispatcher("/jsp/forward.jsp?name=zhangsan"); 

        //forward()μ?á?ò???servlet F?aservletμ?url-pattern  servletò2?é??DD2?êy′?μY 

        //RequestDispatcher rd = context.getRequestDispatcher("/F?name=jingjing"); 

        request.setAttribute("info", "hello");  //2?êy′?μY 

        rd.forward(request, response); 

    } 

?·???°±?D?′?óD"/" ￡?"/"μ?o?ò?ê±??????3?  ·??ò±¨è???òì3￡￡o

java.lang.IllegalArgumentException: Path F does not start with a "/" character 

    com.org.MyServlet.doGet(MyServlet.java:31) 

    javax.servlet.http.HttpServlet.service(HttpServlet.java:617) 

    javax.servlet.http.HttpServlet.service(HttpServlet.java:717) 

?úforward.jsp?Dè?μ?2?êy?a￡o

String name = request.getParameter("name"); 

?úservlet?Dè?μ?2?êy?a￡o 

<pre class="java" name="code">  String name = request.getParameter("name");