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jar包  引入可以解決

<dependency>             <groupId>javax.servlet.jsp</groupId>             <artifactId>jsp-api</artifactId>             <version>${jsp.version}</version>             <scope>provided</scope>         </dependency>         <dependency>             <groupId>javax.servlet</groupId>             <artifactId>javax.servlet-api</artifactId>             <version>${servlet.version}</version>             <scope>provided</scope>         </dependency>