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package com.yxw.demo;
import com.yxw.zuoye.dao.OrderMapper;
import com.yxw.zuoye.entity.Order;
import com.yxw.zuoye.entity.User;
import lombok.extern.slf4j.Slf4j;
import org.apache.ibatis.session.ExecutorType;
import org.apache.ibatis.session.SqlSession;
import org.junit.jupiter.api.Test;
import org.mybatis.spring.SqlSessionTemplate;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.boot.test.context.SpringBootTest;
import java.util.ArrayList;
import java.util.List;
import java.util.UUID;
@SpringBootTest
@Slf4j
class DemoApplicationTests {
@Autowired
private SqlSessionTemplate sqlSessionTemplate;
@Test
void contextLoads() {
}
@Test
public void mybatisBatchOne() {
SqlSession session = sqlSessionTemplate.getSqlSessionFactory().openSession();
try {
OrderMapper orderMapper = session.getMapper(OrderMapper.class);
long start = System.currentTimeMillis();
for (int i = 0; i < 10000; i++) {
Order order = new Order();
User user = new User();
user.setUserId("userId");
user.setUserName("userName");
order.setOrderId("orderId");
order.setUserInfo(user);
orderMapper.insertOrder(order);
}
long end = System.currentTimeMillis();
log.info("耗时:" + (end - start));
} catch (Exception e) {
log.error(e.toString());
} finally {
session.commit();
session.close();
}
}
@Test
public void mybatisBatchTwo() {
SqlSession session = sqlSessionTemplate.getSqlSessionFactory().openSession(ExecutorType.BATCH);
try {
OrderMapper orderMapper = session.getMapper(OrderMapper.class);
long start = System.currentTimeMillis();
for (int i = 0; i < 10000; i++) {
Order order = new Order();
User user = new User();
user.setUserId("userId");
user.setUserName("userName");
order.setOrderId("orderId");
order.setUserInfo(user);
orderMapper.insertOrder(order);
}
long end = System.currentTimeMillis();
log.info("耗时:" + (end - start));
} catch (Exception e) {
log.error(e.toString());
} finally {
session.commit();
session.close();
}
}
@Test
public void saveOrderBatchOne() {
SqlSession session = sqlSessionTemplate.getSqlSessionFactory().openSession();
try {
OrderMapper orderMapper = session.getMapper(OrderMapper.class);
long start = System.currentTimeMillis();
List<Order> orderList = new ArrayList<Order>();
for (int i = 0; i < 10000; i++) {
Order order = new Order();
User user = new User();
user.setUserId("userId");
user.setUserName("userName");
order.setOrderId("orderId");
order.setUserInfo(user);
orderList.add(order);
}
orderMapper.insertOrderBatch(orderList);
orderList.clear();
long end = System.currentTimeMillis();
log.info("耗时:" + (end - start));
} catch (Exception e) {
log.error(e.toString());
} finally {
session.commit();
session.close();
}
}
@Test
public void saveOrderBatchTwo() {
//设置ExecutorType.BATCH原理：把SQL语句发个数据库，数据库预编译好，数据库等待需要运行的参数，接收到参数后一次运行，ExecutorType.BATCH只打印一次SQL语句，多次设置参数步骤，
SqlSession session = sqlSessionTemplate.getSqlSessionFactory().openSession(ExecutorType.BATCH);
try {
OrderMapper orderMapper = session.getMapper(OrderMapper.class);
long start = System.currentTimeMillis();
List<Order> orderList = new ArrayList<Order>();
for (int i = 0; i < 10000; i++) {
Order order = new Order();
User user = new User();
user.setUserId("userId");
user.setUserName("userName");
order.setOrderId("orderId");
order.setUserInfo(user);
orderList.add(order);
}
orderMapper.insertOrderBatch(orderList);
orderList.clear();
long end = System.currentTimeMillis();
log.info("耗时:" + (end - start));
} catch (Exception e) {
log.error(e.toString());
} finally {
session.commit();
session.close();
}
}
}