JavaWeb学习笔记

denglu.jsp

    
        <form action="check.jsp" method="post">
            <input type="text" name="uname" /> </br>
            <input type="password" name="upwd"/> </br>
            <input type="submit" value="登录"/> </br>
        </form>

check.jsp

<%
            request.setCharacterEncoding("utf-8");
            String name=request.getParameter("uname");
            String pwd=request.getParameter("upwd");
            if(name.equals("qwe")&&pwd.equals("123")){
                request.getRequestDispatcher("success.jsp").forward(  request,response);// 页面跳转重定向，跳到success.jsp读取数据仍然从这个页面读取。
            }else{
                out.print("登录失败");
            }
                
            
        %>

seccess.jsp

    欢迎您:
    <%
    out.print(request.getParameter("uname"));
%>