ex2_zy2.jsp

黑魔方JSP基础教程源代码(耿祥义编著)是这里有课件和jsp源代码

<%@ page contentType="text/html;charset=GB2312" %>
<%
String username=request.getParameter("username").trim();
String password=request.getParameter("password").trim();
if(username.equals("admin")&&password.equals("123"))
  out.print("登录成功");
else
{
%>
<jsp:forward page="logout.jsp"/>
<% }
%>
 <P>请输入一个正数,点击按钮求这个数的平方。
<CENTER>
<form action= "Ex2_zy3.jsp" method=post name=form >
<input type="text" name="txt1">
<br>
<input type="submit" value="OK" name=submit>
</form>