如何用logic:equal判断

Question

如题  怎么判断用户名和密码 

Answer 1

如果用户名username=xxxx
则.....
<logic:equal name="usename" value="xxxx">
 进行操作
</logic:equal>
如密码password=xxxx
则.....
<logic:equal name="password" value="xxxx">
 进行操作
</logic:equal>

Answer 2

<logic:equal name="usename" value="xxxx">
<logic:equal name="password" value="xxxx">
    login success, do something
</logic:equal>
</logic:equal>

Answer 3

<logic:equal name="作用域对象名" scope="作用域" property="作用域对象的属性">