关于注解知识的相关案例

package com.apesource.service; import com.apesource.dao.IUserDao; import org.springframework.beans.factory.annotation.Autowired; import org.springframework.beans.factory.annotation.Qualifier; import org.springframework.beans.factory.config.ConfigurableBeanFactory; import org.springframework.context.annotation.Scope; import org.springframework.stereotype.Service; import javax.annotation.Resource; @Service public class UserServiceImp implements IUserService { // @Autowired //按类型匹配 // @Autowired // @Qualifier(value = "userDaoImp") //按名称装配，和@Autowired联合使用 @Resource(name = "userDaoImp") //按名称装配,单独使用 IUserDao dao; public void save() { System.out.println("------service新增方法--------"); dao.save(); } }