maven新建web項目提示The superclass "javax.servlet.http.HttpServlet" was

在pom.xml中添加下面代碼來下載servlet-api:

<dependency>  
    <groupId>javax.servlet</groupId>  
    <artifactId>servlet-api</artifactId>  
    <version>2.5</version>  
    <scope>provided</scope>  
</dependency>

本文轉自：http://www.cnblogs.com/realvie/p/6353788.html