feat: 读写分离
parent
ca6e8eff22
commit
8b924446ed
@ -1,12 +1,13 @@
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package com.yupi.project.mapper;
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import com.baomidou.mybatisplus.core.mapper.BaseMapper;
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import com.yupi.project.model.entity.OrderDO;
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import org.apache.ibatis.annotations.Mapper;
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@Mapper
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public interface OrderMapper {
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public interface OrderMapper extends BaseMapper<OrderDO> {
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void insert(OrderDO order);
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// void insert(OrderDO order);
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}
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@ -0,0 +1,36 @@
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package com.yupi.project.service;
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import com.yupi.project.mapper.OrderMapper;
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import com.yupi.project.model.entity.OrderDO;
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import org.springframework.beans.factory.annotation.Autowired;
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import org.springframework.stereotype.Service;
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import org.springframework.transaction.annotation.Transactional;
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/**
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* @author Administrator
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*/
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@Service
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public class OrderService {
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@Autowired
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private OrderMapper orderMapper;
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@Transactional
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public void add(OrderDO order) {
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// <1.1> 这里先假模假样的读取一下。读取从库
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OrderDO exists = orderMapper.selectById(1);
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System.out.println(exists);
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// <1.2> 插入订单
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orderMapper.insert(order);
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// <1.3> 这里先假模假样的读取一下。读取主库
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exists = orderMapper.selectById(1);
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System.out.println(exists);
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}
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public OrderDO findById(Integer id) {
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return orderMapper.selectById(id);
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}
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}
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