<%@ page language="java" contentType="text/html; charset=UTF-8"%>
<%@ taglib uri="http://displaytag.sf.net" prefix="display" %>
<%@include file="header.jsp" %>
<style type="text/css" media="all">
@import url("/blog/admin/css/screen.css");
</style>
<script type="text/javascript">
function del() {
var msg = "您真的确定要删除吗?\n\n请确认!";
if (confirm(msg)==true){
return true;
}else{
return false;
}
}
</script> <h2>评论管理</h2>
<display:table name="list" pagesize="4" class="its" requestURI="/servlet/CommentServlet" id="c">
<display:column property="id" title="编号" sortable="true"/>
<display:column property="username" sortable="true" title="作者"/>
<display:column property="content" title="内容" />
<display:column property="createdTime" title="日期" sortable="true"/>
<display:column title="操作">
<a href="/blog/servlet/CommentServlet?method=edit&id=${c.id}"><img src="/blog/admin/images/edit.gif " border="0"/></a>
<a href="/blog/servlet/CommentServlet?method=delete&id=${c.id}" onclick="javascript:return del()"><img src="/blog/admin/images/delete.gif" border="0"/></a>
</display:column>
</display:table> <%@include file="footer.jsp" %> 其他地方没有问题
就是我想点删除和修改
jsp页面中
http://localhost:8080/blog/servlet/CommentServlet?method=edit&id=${c.id}
${c.id}应该是个具体是数啊 请问我错在什么地方 具体该怎么改,谢谢
<%@ taglib uri="http://displaytag.sf.net" prefix="display" %>
<%@include file="header.jsp" %>
<style type="text/css" media="all">
@import url("/blog/admin/css/screen.css");
</style>
<script type="text/javascript">
function del() {
var msg = "您真的确定要删除吗?\n\n请确认!";
if (confirm(msg)==true){
return true;
}else{
return false;
}
}
</script> <h2>评论管理</h2>
<display:table name="list" pagesize="4" class="its" requestURI="/servlet/CommentServlet" id="c">
<display:column property="id" title="编号" sortable="true"/>
<display:column property="username" sortable="true" title="作者"/>
<display:column property="content" title="内容" />
<display:column property="createdTime" title="日期" sortable="true"/>
<display:column title="操作">
<a href="/blog/servlet/CommentServlet?method=edit&id=${c.id}"><img src="/blog/admin/images/edit.gif " border="0"/></a>
<a href="/blog/servlet/CommentServlet?method=delete&id=${c.id}" onclick="javascript:return del()"><img src="/blog/admin/images/delete.gif" border="0"/></a>
</display:column>
</display:table> <%@include file="footer.jsp" %> 其他地方没有问题
就是我想点删除和修改
jsp页面中
http://localhost:8080/blog/servlet/CommentServlet?method=edit&id=${c.id}
${c.id}应该是个具体是数啊 请问我错在什么地方 具体该怎么改,谢谢
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1、web应用的部署描述文件引用的是servlet规范的2.3版本或更早的版本(即jsp1.2或更早),则jsp2.0表达式语言自动在web应用中停用,注意里面的version属性应为2.4及以上版本.
2、web.xml中,是否针对某个目录停用了EL表达式
<jsp-property-group>
<url-pattern>/legacy/*.jsp</url-pattern>
<el-ignored>true</el-ignored>
</jsp-property-group>
这种情况的解决方法就是把<el-ignored>true</el-ignored>改为<el-ignored>false</el-ignored>
<?xml version="1.0" encoding="UTF-8"?>
<web-app version="2.5"
xmlns="http://java.sun.com/xml/ns/javaee"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://java.sun.com/xml/ns/javaee
http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd">
<servlet>
<servlet-name>CaseServlet</servlet-name>
<servlet-class>cn.com.jobedu.my_case.CaseServlet</servlet-class>
</servlet>
<servlet>
<servlet-name>TeacherServlet</servlet-name>
<servlet-class>cn.com.jobedu.my_case.TeacherServlet</servlet-class>
</servlet>
<servlet>
<servlet-name>CourseServlet</servlet-name>
<servlet-class>cn.com.jobedu.my_case.CourseServlet</servlet-class>
</servlet>
<servlet>
<servlet-name>ClassServlet</servlet-name>
<servlet-class>cn.com.jobedu.my_case.ClassServlet</servlet-class>
</servlet>
<servlet>
<servlet-name>LoginServlet</servlet-name>
<servlet-class>cn.com.jobedu.my_case.LoginServlet</servlet-class>
</servlet>
<servlet>
<servlet-name>TcheckInfoServlet</servlet-name>
<servlet-class>cn.com.jobedu.my_case.TcheckInfoServlet</servlet-class>
</servlet>
<servlet-mapping>
<servlet-name>CaseServlet</servlet-name>
<url-pattern>/servlet/CaseServlet</url-pattern>
</servlet-mapping>
<servlet-mapping>
<servlet-name>TeacherServlet</servlet-name>
<url-pattern>/servlet/TeacherServlet</url-pattern>
</servlet-mapping>
<servlet-mapping>
<servlet-name>CourseServlet</servlet-name>
<url-pattern>/servlet/CourseServlet</url-pattern>
</servlet-mapping>
<servlet-mapping>
<servlet-name>ClassServlet</servlet-name>
<url-pattern>/servlet/ClassServlet</url-pattern>
</servlet-mapping>
<servlet-mapping>
<servlet-name>LoginServlet</servlet-name>
<url-pattern>/servlet/LoginServlet</url-pattern>
</servlet-mapping>
<servlet-mapping>
<servlet-name>TcheckInfoServlet</servlet-name>
<url-pattern>/servlet/TcheckInfoServlet</url-pattern>
</servlet-mapping>
<welcome-file-list>
<welcome-file>index.jsp</welcome-file>
</welcome-file-list>
</web-app>没有你提到的上面那些,具体怎么做,大侠,我是新手来的,刚刚接触,麻烦你教教我,万分感谢
<web-app version="2.5"
xmlns="http://java.sun.com/xml/ns/javaee"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://java.sun.com/xml/ns/javaee
http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd">已经是2.5了,应该是支持EL的。而且也没有禁用EL的配置。你的Tomcat是什么版本的?
把web.xml头,降级为2.4试试看:
<web-app xmlns="http://java.sun.com/xml/ns/j2ee" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://java.sun.com/xml/ns/j2ee http://java.sun.com/xml/ns/j2ee/web-app_2_4.xsd" version="2.4">如果还不行,JSP头加上:<%@ page isELIgnored="false" %>
.