1. org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'sqlSession' defined in class path resource [spring-mybatis.xml]: Invocation of init method failed; nested exception is org.springframework.core.NestedIOException: Failed to parse mapping resource: 'file [E:\ZengQingLong\MyEclipseTest\.metadata\.me_tcat\webapps\Demo-zql\WEB-INF\classes\mapper\TestMapper.xml]'; nested exception is java.lang.RuntimeException: Error parsing Mapper XML. Cause: org.apache.ibatis.builder.BuilderException: Error resolving class . Cause: org.apache.ibatis.type.TypeException: Could not resolve type alias 'com.jnkj.ssm.dao.Test'.  Cause: java.lang.ClassNotFoundException: Cannot find class: com.jnkj.ssm.dao.Test