ServletContext cannot be resolved ServletException cannot be resolved

ServletContext cannot be resolved ServletException cannot be resolved

Multiple markers at this line

- The type javax.servlet.ServletContext cannot be resolved. It is indirectly referenced from required .class files

- The type javax.servlet.ServletException cannot be resolved. It is indirectly referenced from required .class files

缺少servlet-api-xx.jar

maven依赖

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