以下代码产生此错误:
org.apache.jasper.JasperException:处理发生异常 第26行的JSP页面/WEB-INF/jsp/login.jsp
<form:form method="post" action="/login" commandName="Login" >
<table>
<tr>
<td>
<p>UserName</p>
<form:input path="username"/>
</td>
</tr>
<tr>
<td>
<p>Password</p>
<form:input type="password" path="userpassword"/>
</td>
</tr>
<tr>
<td colspan="2">
<input type="submit" value="Login">
<a href="/registration">Sign Up</a>
</td>
</tr>
</table>
</form:form>