Java tutorial
/** * Copyright 2017 tianjunwei * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ package com.tianjunwei.lazy; import java.io.IOException; import java.io.InputStream; import java.util.List; import org.apache.ibatis.session.SqlSession; import org.apache.ibatis.session.SqlSessionFactory; import org.apache.ibatis.session.SqlSessionFactoryBuilder; import com.tianjunwei.lazy.entity.Teacher; import com.tianjunwei.lazy.entity.User; /** * @author tianjunwei * @time 2017 ?10:24:21 */ public class LazyMainTeacher { public static void main(String[] args) throws IOException { //mybatis? String resource = "learn/mybatis-config.xml"; InputStream is = LazyMainTeacher.class.getClassLoader().getResourceAsStream(resource); //sqlSession SqlSessionFactory sessionFactory = new SqlSessionFactoryBuilder().build(is); SqlSession session = sessionFactory.openSession(); String statement = "com.tianjunwei.lazy.entity.Teacher.getTeacher";//sql //usersql Teacher teacher = (Teacher) session.selectList(statement, 1).get(0); session.commit(true); System.out.println(teacher.getName()); List<User> users = teacher.getUsers(); System.err.println(users.get(3).getAge()); System.err.println(teacher.getClass()); System.in.read(); } }