初学spring，开启注释扫描时就报这个错误，网上寻找一番大概是JDK和Spring版本不对应。开始我是用spring5.0.0版本不行，然后5.2.0版本还是不行。

        然后在spring项目中找到了对应的版本，JDK17要用5.3.0以上的了

https://github.com/spring-projects/spring-framework/wiki/Spring-Framework-Versions

这是spring的下载地址https://mvnrepository.com/artifact/org.springframework/spring-beans

导入idea时的要用的依赖

        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-context</artifactId>
            <version>5.3.18</version>
        </dependency>

        <!--https://mvnrepository.com/artifact/org.springframework/spring-core -->
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-core</artifactId>
            <version>5.3.18</version>
        </dependency>

        <!--https://mvnrepository.com/artifact/org.springframework/spring-beans -->
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-beans</artifactId>
            <version>5.3.18</version>
        </dependency>