jsp到serlet传值的有关问题
jsp到serlet传值的问题
jsp代码:
servlet代码:
打出来的值都是null,jsp无法向serlvet中传值吗???
------解决方案--------------------
login.jsp
LoginServlet
jsp代码:
<form action="<%=path%>/Index">
<c:set var="qqq" value="123" scope="page"></c:set>
<%
request.setAttribute("temp1","456") ;
%>
<input type="submit" value="111">
</form>
servlet代码:
System.out.println(request.getAttribute("qqq"));
System.out.println(request.getAttribute("temp1"));
打出来的值都是null,jsp无法向serlvet中传值吗???
------解决方案--------------------
login.jsp
<form method="post" name="unform" action="<%=basePath%>LoginServlet" target="_parent">
<table border="0" width="61%" style="background-color:#888fff" bgcolor="#888fff" >
<td width="80%" class="3dfont"><font color="#008040"></font>
<table border="0" width="100%" bgcolor="#888fff" >
<input type="hidden" id="info" value="${param.info}">
<tr >
<td width="10%" class="3dfont"><b>账户</b></td>
<td width="20%"><input type="text" name="username" value="bcsflilong"/></td>
<td width="10%" class="3dfont"><b>密码</b></td>
<td width="20%"><input type="password" name="psw" value="" /></td>
<td width="20%"><input type="submit" onClick="return _submit()" value="登录"> </td>
</tr></b>
</table></td></table></center>
</form>
LoginServlet
public void doGet(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {