MyBatis系列第2篇：入门篇，带你感受一下mybatis独特的魅力！

33(Integer), 30000.0(Double), null, javacode2018-3(String), 33(Integer), 30000.0(Double), null, 路人甲Java salary=30000.0), UserModel(id=8, name=javacode2018-3, age=33, salary=30000.0), UserModel(id=9, name=路人甲Java salary=30000.0), UserModel(id=8, name=javacode2018-3, age=33, salary=30000.0), UserModel(id=9, name=路人甲Java UserMapperTest - 结果:[UserModel(id=7, name=路人甲Java-3, age=null, salary=null), UserModel(id=9, name=路人甲Java