我看了半天 实在找不到错在哪里

 Error creating bean with name 'sqlSessionFactory' defined in class path resource [spring/spring-dao.xml]: Invocation of init method failed; nested exception is org.springframework.core.NestedIOException: Failed to parse mapping resource: 'file [D:\javawork\demo\target\classes\mapper\SuccessKilledDao.xml]'; nested exception is org.apache.ibatis.builder.BuilderException: Error parsing Mapper XML. Cause: org.apache.ibatis.builder.BuilderException: Error resolving class. Cause: org.apache.ibatis.type.TypeException: Could not resolve type alias 'SuccessKilled'.  Cause: java.lang.ClassNotFoundException: Cannot find class: SuccessKilled