spring-boot 启动时候 出现异常：The bean 'xxx' could not be injected as a 'xx.xxxx' because it is a JDK dynami

1. @Resource
2.  
   private UmsUserMapper userMapper;

如上代码会报错，这是因为程序中有一个UserMapper，所以当命名为userMapper会首先查找UserMapper这个类而不是UmsUserMapper这个类，改成umsUserMapper程序正常。注入时的变量命名很重要