package com.buka.controller;
import com.buka.po.Clazz;
import com.buka.service.ClassService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.
web.bind.annotation.RequestMapping;
import org.springframework.
web.bind.annotation.RequestParam;
import org.springframework.
web.servlet.ModelAndView;
import java.util.
List;
@Controller
public class ClassController {
@Autowired
ClassService classService;
@RequestMapping("/menu")
public ModelAndView index(Clazz classes , ModelAndView mv) {
List<Clazz> class
List=classService.selClass(new Clazz());
mv.addObject("classist",class
List);
mv.setViewName("menu.jsp");
return mv;
}
@RequestMapping("/addClass")
public ModelAndView addClass(Clazz clazz,ModelAndView mv){
classService.addClass(clazz);
mv.addObject("clazz",clazz);
List<Clazz> class
List=classService.selClass(clazz);
mv.addObject("classist",class
List);
mv.setViewName("index.jsp");
return mv;
}
}
<%@ page contentType="text/
html;charset=UTF
-8" %>
<%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %>
<
html>
<head>
<title>班级列表</title>
</head>
<body>
<h3>班级列表</h3>
<a href="addClass.jsp">添加班级</a>
<table border="1">
<tr>
<th>班级名称</th>
<th>操作</th>
</tr>
<c:forEach var="cls" items="${classist}">
<tr>
<td>${cls.cname} (ID: ${cls.cid})</td>
<td>
<button>查看成绩</button>
<a href="Student.jsp?classId=${cls.cid}">查看学生</a>
</td>
</tr>
</c:forEach>
</table>
</body>
</
html><?
xml version="1.0" encoding="UTF
-8"?>
<
web-app
version="4.0"
xmlns="http://
xmlns.jcp.org/
xml/ns/javaee"
xmlns:javaee="http://
xmlns.jcp.org/
xml/ns/javaee"
xmlns:
xml="http://www.w3.org/
XML/1998/namespace"
xmlns:xsi="http://www.w3.org/2001/
XMLSchema
-instance"
xsi:schemaLocation="http://
xmlns.jcp.org/
xml/ns/javaee http://
xmlns.jcp.org/
xml/ns/javaee/
web-app_4_0.xsd">
<display
-name>Archetype Created
Web Application</display
-name>
<
welcome-file-list>
<
welcome-file>menu.jsp</
welcome-file>
</
welcome-file-list>
<!
-- SpringMVC
-->
<servlet>
<servlet
-name>springMVC</servlet
-name>
<servlet
-class>org.springframework.
web.servlet.DispatcherServlet</servlet
-class>
<init
-param>
<param
-name>contextConfigLocation</param
-name>
<param
-value>classpath:springmvc
-config.
xml</param
-value>
</init
-param>
</servlet>
<servlet
-mapping>
<servlet
-name>springMVC</servlet
-name>
<url
-pattern>/</url
-pattern>
</servlet
-mapping>
<!
-- 配置Spring的监听器，用于加载Spring
配置文件
-->
<
listener>
<
listener
-class>org.springframework.
web.context.ContextLoader
Listener</
listener
-class>
</
listener>
<context
-param>
<param
-name>contextConfigLocation</param
-name>
<param
-value>classpath:application.
xml</param
-value>
</context
-param>
<filter>
<filter
-name>charset</filter
-name>
<filter
-class>org.springframework.
web.filter.CharacterEncodingFilter</filter
-class>
<init
-param>
<param
-name>encoding</param
-name>
<param
-value>UTF
-8</param
-value>
</init
-param>
</filter>
<filter
-mapping>
<filter
-name>charset</filter
-name>
<url
-pattern>/*</url
-pattern>
</filter
-mapping>
</
web-app>
为什么我添加了
welcome后还是不能直接访问到带有班级信息的menu.jsp文件
本文介绍了一种在web.xml文件中通过<welcome-file>标签设置默认欢迎页面并利用HTML的meta标签实现自动刷新重定向的方法。具体做法是在index.html中加入<meta http-equiv='refresh' content='0;url=index.action'>，从而实现访问首页时直接跳转到index.action。
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