mave之：java的web项目必须要的三个jar的pom形式

jsp-api

javax.servlet-api

jstl

<!-- jsp -->
<dependency>
	<groupId>javax.servlet</groupId>
	<artifactId>javax.servlet-api</artifactId>
	<version>3.0.1</version>
    <scope>provided</scope>
</dependency>
<dependency>
	<groupId>javax.servlet.jsp</groupId>
	<artifactId>jsp-api</artifactId>
	<version>2.1</version>
	<scope>provided</scope>
</dependency>
<dependency>
	<groupId>javax.servlet</groupId>
	<artifactId>jstl</artifactId>
	<version>1.2</version>
</dependency>
<!-- jsp -->

tomcat 提供了servlet-api和jsp-api