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📁 写给JSP初级程序员的书
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<title>csdn_Servlet和JSP的通信的一种方法</title>
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        <td WIDTH="50%" bordercolor="#FFFFFF" CLASS="t1" bgcolor="#F0F0F0" align="center" nowrap>Servlet和JSP的通信的一种方法</td>
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       <p><br>
    以下的代码片段演示了一个servlet，它例示(instantiates)一个bean并且用由浏览器发送的Form数据将它初始化。此后bean被加入request,而这一要求被送到JSP页面（Bean1.jsp）,JSP通过request取得并做进一步处理。<br>
    <br>
    public void doPost (HttpServletRequest request,<br> 
		       HttpServletResponse response) {<br> 
    <br> 
	try {<br> 
	      govi.FormBean f = new govi.FormBean();<br> 
              String id = request.getParameter("id");<br> 
	      f.setName(request.getParameter("name"));<br> 
	      f.setAddr(request.getParameter("addr"));<br> 
	      f.setAge(request.getParameter("age"));<br> 
              //use the id to compute&nbsp;<br>
              //additional bean properties like info&nbsp;<br>
              //maybe perform a db query, etc.<br> 
              // . . .<br> 
              f.setPersonalizationInfo(info);<br> 
	      request.setAttribute("fBean",f);<br> 
	      getServletConfig().getServletContext().getRequestDispatcher<br> 
                           ("/jsp/Bean1.jsp").forward(request, response);<br> 
	} catch (Exception ex) {<br> 
                . . .<br> 
	}<br> 
 }<br> 
    <br> 
    在将它从通过useBean操作中的缺省的请求范围，即scope首次执行后，即可在JSP文件的Bean1.jsp处理fBean。&nbsp;<br>
    <br>
    &lt;jsp:useBean id="fBean" class="govi.FormBean" scope="request"/><br> 
    &lt;jsp:getProperty name="fBean" property="name" /><br> 
    &lt;jsp:getProperty name="fBean" property="addr" /><br> 
    &lt;jsp:getProperty name="fBean" property="age" /><br> 
    &lt;jsp:getProperty name="fBean" property="personalizationInfo" />  
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