//一方配置抓取策略

    @Fetch(FetchMode.JOIN)

    @LazyCollection(LazyCollectionOption.TRUE)

    private Set<Order> orders = new HashSet<>();

package cn.igeekdemo2;

import java.util.List;

import org.hibernate.Session;

import org.hibernate.Transaction;

import org.junit.Test;

import cn.igeekutil.HibernateUtils;

publicclass TestFetch {

    @Test

    publicvoid run1(){

       //查找美美客户的所有订单

       Session session = HibernateUtils.getCurrentSession();

       Transaction tr = session.beginTransaction();

       Customer c = session.get(Customer.class, 23);

       System.out.println(c.getName()+"-->"+c.getOrders().size());

       tr.commit();

    }

}