Jsp 如何使用Displaytag显示DAO？

成功了，但表格没有样式，只有文本。如何修复？

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我想使用

displaytag

显示联系人列表。 使用

可以很好地工作，但我不知道如何使用

displaytag

来实现这一点

displaytag-1.2.jar

位于\WEB-INF\lib中

怎么了

<%@ taglib uri="http://java.sun.com/jsp/jstl/core" prefix="c"%>
<%@ taglib uri="http://java.sun.com/jsp/jstl/fmt" prefix="fmt"%>
<%@ taglib uri="http://displaytag.sf.net" prefix="display"%>

.
.
.


    <jsp:useBean id="dao" class="caelum.jdbc.dao.ContatoDao" />


    <display:table name="${dao.lista}" />
.
.
.

错误2

        type Exception report

        message java.lang.ClassNotFoundException: org.apache.jsp.lista_002dcontato_002ddisplay_jsp

        description The se

rver encountered an internal error that prevented it from fulfilling this request.

    exception

    org.apache.jasper.JasperException: java.lang.ClassNotFoundException: org.apache.jsp.lista_002dcontato_002ddisplay_jsp org.apache.jasper.servlet.JspServletWrapper.getServlet(JspServletWrapper.java:176) org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:375) org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:396) org.apache.jasper.servlet.JspServlet.service(JspServlet.java:340) javax.servlet.http.HttpServlet.service(HttpServlet.java:729) org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52) root cause

    java.lang.ClassNotFoundException: org.apache.jsp.lista_002dcontato_002ddisplay_jsp java.net.URLClassLoader.findClass(Unknown Source) org.apache.jasper.servlet.JasperLoader.loadClass(JasperLoader.java:131) org.apache.jasper.servlet.JasperLoader.loadClass(JasperLoader.java:62) org.apache.jasper.servlet.JspServletWrapper.getServlet(JspServletWrapper.java:171) org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:375) org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:396) org.apache.jasper.servlet.JspServlet.service(JspServlet.java:340) javax.servlet.http.HttpServlet.service(HttpServlet.java:729) org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)

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您在webapp中没有所需的库，或者没有其他版本的库。看它起作用了！现在我的表格正在显示，但只有文本，没有颜色或样式。。。如何修复？通过声明CSS规则。您可以使用这些示例作为起点。

        type Exception report

        message java.lang.ClassNotFoundException: org.apache.jsp.lista_002dcontato_002ddisplay_jsp

        description The se

rver encountered an internal error that prevented it from fulfilling this request.

    exception

    org.apache.jasper.JasperException: java.lang.ClassNotFoundException: org.apache.jsp.lista_002dcontato_002ddisplay_jsp org.apache.jasper.servlet.JspServletWrapper.getServlet(JspServletWrapper.java:176) org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:375) org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:396) org.apache.jasper.servlet.JspServlet.service(JspServlet.java:340) javax.servlet.http.HttpServlet.service(HttpServlet.java:729) org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52) root cause

    java.lang.ClassNotFoundException: org.apache.jsp.lista_002dcontato_002ddisplay_jsp java.net.URLClassLoader.findClass(Unknown Source) org.apache.jasper.servlet.JasperLoader.loadClass(JasperLoader.java:131) org.apache.jasper.servlet.JasperLoader.loadClass(JasperLoader.java:62) org.apache.jasper.servlet.JspServletWrapper.getServlet(JspServletWrapper.java:171) org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:375) org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:396) org.apache.jasper.servlet.JspServlet.service(JspServlet.java:340) javax.servlet.http.HttpServlet.service(HttpServlet.java:729) org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)