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                        /JAVA遇見HTML——JSP篇

怎么回事？

????

<body>

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

? <h1>setProperty動作元素</h1>

? <hr><jsp:setProperty property="password" name="myUsers" param="mypass"/>

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

用戶名：<jsp:getProperty property="username" name="myUsers"/><br>

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

? </body>

提示錯誤信息

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

實例化對象名啥都對著呢