我是j2ee的新人。我已经阅读了一本j2ee书。有一个名为" Soccer"其中一个文件名" list_league.view"存在于" /"目录。这个应用程序使用MVC和一个Servlet文件,所以我的问题是如何创建这些扩展类型文件。
Web.xml文件的内容:
<servlet>
<servlet-name>ListLeague</servlet-name>
<servlet-class>s1314.view.ListLeagueServlet</servlet-class>
</servlet>
<servlet-mapping>
<servlet-name>ListLeague</servlet-name>
<servlet-class>list_league.view</servlet-class>
</servlet-mapping>
/index.html页面包含一个锚标记,引用&#34; list_leauge.view&#34;文件,下面:
<h3>Player</h3>
<ul><li><a href="list_league.view">List all league</a></li>
<li>Register for a league(TBA)</li>
</ul>
ListLeaugeServlet.java
import s1314.model.League;
@Override
protected void doGet(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
processRequest(request, response);
//Creats the set of league
leagueList=new LinkedList();
leagueList.add(new League("2003","Spring","Soccer League(Spring`03)"));
leagueList.add(new League("2003","Summer","Summer Soccer Fest"));
leagueList.add(new League("2003","Fall","Fall Soccer League"));
leagueList.add(new League("2004","Spring","Summer Soccer Fest"));
leagueList.add(new League("2004","Summer","Soccer League(Spring`03)"));
leagueList.add(new League("2004","Fall","Fall Soccer League"));
}
答案 0 :(得分:0)
您需要了解.view
不是文件类型或扩展名。拦截对url
的请求只是spring container
模式。
您可以使用.view
模式拦截应用程序的调度程序servlet。检查你的
dispatcher-servlet.xml
了解视图解析程序下的视图文件夹
更新:
ListLeague
servlet将被网址/list_league.view
拦截。
答案 1 :(得分:0)
在servlet映射中,您应该为servlet处理的URL指定模式。
<servlet-mapping>
<servlet-name>ListLeague</servlet-name>
<url-pattern>*.view</url-pattern>
</servlet-mapping>
url模式应该是路径或扩展名(其他不考虑此处)。一旦调用了servlet,它就应该返回一个视图,即一些JSP页面或另一个servlet。假设您有list_league.jsp
:
<%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %>
<html>
<head>
<title>List League</title>
</head>
<body>
<c:forEach var="row" items="${leagueList}">
Year: <c:out value="${row.year}"/><br>
Season: <c:out value="${row.season}"/><br>
League: <c:out value="${row.league}"/><br>
</c:forEach>
</body>
</html>
servlet是一个转发到JSP以返回视图的控制器
@Override
protected void doGet(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
processRequest(request, response);
//Creats the set of league
List<League> leagueList = new LinkedList<>();
leagueList.add(new League("2003","Spring","Soccer League(Spring`03)"));
leagueList.add(new League("2003","Summer","Summer Soccer Fest"));
leagueList.add(new League("2003","Fall","Fall Soccer League"));
leagueList.add(new League("2004","Spring","Summer Soccer Fest"));
leagueList.add(new League("2004","Summer","Soccer League(Spring`03)"));
leagueList.add(new League("2004","Fall","Fall Soccer League"));
// forward a view with model
request.setAttribute("leagueList", leagueList );
request.getRequestDispatcher("list_league.jsp").forward(request, response);
}