org.apache.jasper.el.ELContextImpl cannot be cast to org.apache.jasper.el.ELContextImpl

Maven 项目部署到tomcat中，导致访问localhost:8080是提示错误org.apache.jasper.el.ELContextImpl
cannot be cast to

org.apache.jasper.el.ELContextImpl







遇到org.apache.jasper.el.ELContextImpl cannot be cast to
org.apache.jasper.el.ELContextImpl异常，是因为自己的项目下WEB-INF\lib下的包与tomcat自带的lib包有重复的，删除重复的包即可。比如jasper.jar,jsp-api.jar，jsp.jar等

如果maven项目，则在需要关联该包中添加语句

<pre name="code" class="html">          <dependency>
<groupId>org.jtang</groupId>
<artifactId>store-commons</artifactId>
<version>0.0.3-SNAPSHOT</version>
<!--  部署包冲突 -->
<strong><span style="color:#cc0000;"><exclusions>
<exclusion>
<groupId>org.mortbay.jetty</groupId>
<artifactId>jsp-2.1</artifactId>
</exclusion>
<exclusion>
<groupId>org.mortbay.jetty</groupId>
<artifactId>jsp-api-2.1</artifactId>
</exclusion>
</exclusions></span></strong>
</dependency>