                        课程
                    
                        /后端开发
                        
                            /Java
                        
                        /JAVA遇见HTML——JSP篇

怎么回事？

<body>

<jsp:useBean id="myUsers"class="com.po.Users"scope="application"/>

<h1>setProperty动作元素</h1>

<jsp:setProperty property="username" name="myUsers" />

用户名：<jsp:getProperty property="username" name="myUsers"/><br>

密码：<jsp:getProperty property="password" name="myUsers"/><br>

</body>

提示错误信息

HTTP Status 500 -

type Exception report

message

description The server encountered an internal error () that prevented it from fulfilling this request.

exception

org.apache.jasper.JasperException: file:/dologin.jsp(40,4) jsp:getProperty for bean with name 'myUsers'. Name was not previously introduced as per JSP.5.3

实例化对象名啥都对着呢