关于程序中使用servlet-api.jar和jsp-api.jar与服务器lib包jar包冲突的问题

<properties>     

    <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>     

    <javax.servlet-api.version>4.0.1</javax.servlet-api.version> // 请自行选择最新版本号     

    <javax.servlet.jsp-api.version>2.3.3</javax.servlet.jsp-api.version>   

</properties> 

<dependencies>   

    <dependency>       

        <groupId>javax.servlet</groupId>       

        <artifactId>javax.servlet-api</artifactId>       

        <version>${javax.servlet-api.version}</version>       

        <scope>provided</scope>     
    </dependency>   

    <dependency>       

        <groupId>javax.servlet.jsp</groupId>       

        <artifactId>javax.servlet.jsp-api</artifactId>       

        <version>${javax.servlet.jsp-api.version}</version>       

        <scope>provided</scope>    

    </dependency> 

</dependencies>

<dependency>
  <groupId>javax.servlet</groupId>
  <artifactId>jsp-api</artifactId>
  <version>2.0</version>
  <!--主要是与 tomcat 中的 版本冲突 就加了 作用域 -->
  <scope>provided</scope>
</dependency>