jsp:相关小细节 Expecting "jsp:param" standard action with "name" and "value" attributes_警告: standardwra

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<%@page contentType="text/html;charset=UTF-8" %>
<%@page errorPage="error.jsp" %>
        <TITLE>forward</TITLE>
    </HEAD>
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            <% double i=Math.random();
            if(i>0.5

问题源码< jsp :include pa ge="helloWorld. jsp " flush="true">  < jsp : pa ram name="hello" value ="Hello Action Element"/> <!-- 名称-值对的形式为其他标记提供参数，必须和其他动作标记一起使用在学习 JSP 过程过，出现了如下报错：关键说明是： Expect ing “ jsp : pa ram ” standard action with “name” and “ value ” attributes 出错地点在 JSP 文件的22行。检查22行发现代码为 < jsp :forward pa ge="viewMessages. jsp "> </body> </html> 此处... 严重: Standard Wr app erValve [ jsp ]: PWC1406 : Servlet . service () for servlet jsp threw exception java.lang.NoSuchMethodError: javax. servlet . Servlet Request.get Servlet Context()Ljavax/ servlet / Servlet Context; 原因：使用 jsp 动作时不规范：错误（末尾丢失斜杠）：< jsp :include pa ge="…/top_model. jsp " flush=“true”> 错误：< jsp :include pa ge="…/top_model. jsp " flush=“true”/> <br />错误信息如下：<br />org.a pa che.jasper.JasperException: /index. jsp (14,0) Expect ing " jsp : pa ram " standard action with "name" and " value " attributes <br /> org.a pa che.jasper.compiler.DefaultErrorHandler. jsp Error(DefaultErrorHandler.java:40)<br /> org.a org.a pa che.jasper.JasperException: / pa ge/back/list_article. jsp (177,6) Expect ing " jsp : pa ram " standard action with "name" and " value " attributes org.a pa che.jasper.compiler.DefaultErrorHandler. jsp Err 在用jstl做 jsp 的时候报这个错误严重: Servlet . service () for servlet DoIndex threw exceptionorg.a pa che.jasper.JasperException: <h3>Validation error messages from TagLibraryValidator for c in /index. jsp </h3... type Exception report message /doreg. jsp (line: 11, column: 0) Expect ing " jsp : pa ram " standard action with "name" and " value " attributes description The server encountered an...