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前段时间项目扫描出现一些不合规范的地方，有类问题就是不能动态加载。于是在代码中就换了一个方式：直接从Spring获得bean对象，然后通过getClass方法获得类。项目是使用Springboot开发的。
原来：
Class<? extends Object> clazz = Class.forName(className);
现在：
Object bean = applicationContext.getBean(className); Class<? extends Object>
clazz = bean.getClass();
在后续的代码测试中出现好多no bean named 'XXXX' available的问题，总结了一下出现的问题：
1、className不是使用全类名例如：com.way.inter.impl.CalImpl，需要转换成类名首字母小写：calImpl。因为类交给spring管理的时候一般默认使用小写的类名作为bean的id；
2、如果类名全部是大写字母，Spring会直接使用类名作为id,所以类名必须规范使用驼峰结构，这样有利于在代码中统一处理；
3、Component注解后使用value指定名称，这样也会影响bean的获取。例如：@Component(value="CalureImpl")；
4、类名命名不规范，使用$等特殊字符；
5、直接使用类接口的名称获取实现类的bean，并且接口没有使用Component注解；
6、项目中存在重名的类也会影响bean的获取。
