异常：java.lang.NoClassDefFoundError: org/springframework/expression/ParserContext

异常：java.lang.NoClassDefFoundError: org/springframework/expression/ParserContext

解决方案：缺少spring-expression-********.RELEASE.jar包，丢进项目中就可以了

maven导入

    <dependencies>
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-context</artifactId>
            <version>4.3.2.RELEASE</version>
        </dependency>       
    </dependencies>