"javax.servlet.http.HttpServlet" was not found

在eclipse中，用maven新建web项目时，jsp页面报错：

The superclass "javax.servlet.http.HttpServlet" was not found on the Java Build Path.

说明缺乏httpServlet，解决方法是：

右键项目-Properties-Targeted Runtimes-选择本身要运行的服务器，好比 Apache Tomcat v7.0-ok!

听说也能够在pom.xml中添加

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