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| package com.mysql.service;
import com.baomidou.mybatisplus.core.conditions.query.QueryWrapper;
import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
import com.mysql.entity.UserInfo;
import com.mysql.entity.UserOrder;
import com.mysql.mapper.UserInfoMapper;
import com.mysql.mapper.UserOrderMapper;
import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import org.springframework.transaction.annotation.Transactional;
import java.time.LocalDateTime;
import java.util.List;
import java.util.concurrent.CompletableFuture;
import java.util.concurrent.ThreadPoolExecutor;
import java.util.concurrent.Executors;
import java.util.concurrent.TimeUnit;
@Slf4j
@Service
public class ShardingService extends ServiceImpl<UserInfoMapper, UserInfo> {
@Autowired
private UserInfoMapper userInfoMapper;
@Autowired
private UserOrderMapper userOrderMapper;
private final ThreadPoolExecutor executor = new ThreadPoolExecutor(
10, 50, 60L, TimeUnit.SECONDS,
new java.util.concurrent.LinkedBlockingQueue<>(1000),
r -> new Thread(r, "sharding-async-" + System.currentTimeMillis())
);
@Transactional
public void batchInsertUsers(List<UserInfo> users) {
try {
log.info("开始批量插入用户信息，数量: {}", users.size());
int batchSize = 1000;
for (int i = 0; i < users.size(); i += batchSize) {
int endIndex = Math.min(i + batchSize, users.size());
List<UserInfo> batch = users.subList(i, endIndex);
CompletableFuture.runAsync(() -> {
try {
userInfoMapper.batchInsert(batch);
log.info("批量插入用户信息完成，批次: {}-{}", i, endIndex);
} catch (Exception e) {
log.error("批量插入用户信息失败，批次: {}-{}", i, endIndex, e);
}
}, executor);
}
} catch (Exception e) {
log.error("批量插入用户信息失败", e);
throw new RuntimeException("批量插入用户信息失败", e);
}
}
@Transactional
public void batchInsertOrders(List<UserOrder> orders) {
try {
log.info("开始批量插入订单信息，数量: {}", orders.size());
int batchSize = 1000;
for (int i = 0; i < orders.size(); i += batchSize) {
int endIndex = Math.min(i + batchSize, orders.size());
List<UserOrder> batch = orders.subList(i, endIndex);
CompletableFuture.runAsync(() -> {
try {
userOrderMapper.batchInsert(batch);
log.info("批量插入订单信息完成，批次: {}-{}", i, endIndex);
} catch (Exception e) {
log.error("批量插入订单信息失败，批次: {}-{}", i, endIndex, e);
}
}, executor);
}
} catch (Exception e) {
log.error("批量插入订单信息失败", e);
throw new RuntimeException("批量插入订单信息失败", e);
}
}
public UserInfo getUserById(Long userId) {
try {
log.debug("查询用户信息: userId={}", userId);
QueryWrapper<UserInfo> queryWrapper = new QueryWrapper<>();
queryWrapper.eq("user_id", userId);
return userInfoMapper.selectOne(queryWrapper);
} catch (Exception e) {
log.error("查询用户信息失败: userId={}", userId, e);
throw new RuntimeException("查询用户信息失败", e);
}
}
public List<UserOrder> getOrdersByUserId(Long userId) {
try {
log.debug("查询用户订单列表: userId={}", userId);
QueryWrapper<UserOrder> queryWrapper = new QueryWrapper<>();
queryWrapper.eq("user_id", userId);
queryWrapper.orderByDesc("create_time");
return userOrderMapper.selectList(queryWrapper);
} catch (Exception e) {
log.error("查询用户订单列表失败: userId={}", userId, e);
throw new RuntimeException("查询用户订单列表失败", e);
}
}
@Transactional
public boolean updateUserStatus(Long userId, String status) {
try {
log.info("更新用户状态: userId={}, status={}", userId, status);
QueryWrapper<UserInfo> queryWrapper = new QueryWrapper<>();
queryWrapper.eq("user_id", userId);
UserInfo userInfo = new UserInfo();
userInfo.setStatus(status);
userInfo.setUpdateTime(LocalDateTime.now());
int result = userInfoMapper.update(userInfo, queryWrapper);
log.info("更新用户状态完成: userId={}, result={}", userId, result);
return result > 0;
} catch (Exception e) {
log.error("更新用户状态失败: userId={}", userId, e);
throw new RuntimeException("更新用户状态失败", e);
}
}
@Transactional
public boolean updateOrderStatus(Long orderId, String status) {
try {
log.info("更新订单状态: orderId={}, status={}", orderId, status);
QueryWrapper<UserOrder> queryWrapper = new QueryWrapper<>();
queryWrapper.eq("id", orderId);
UserOrder order = new UserOrder();
order.setStatus(status);
order.setUpdateTime(LocalDateTime.now());
if ("PAID".equals(status)) {
order.setPayTime(LocalDateTime.now());
}
int result = userOrderMapper.update(order, queryWrapper);
log.info("更新订单状态完成: orderId={}, result={}", orderId, result);
return result > 0;
} catch (Exception e) {
log.error("更新订单状态失败: orderId={}", orderId, e);
throw new RuntimeException("更新订单状态失败", e);
}
}
public String getShardInfo(Long userId) {
try {
int dbIndex = (int) (userId % 4);
int tableIndex = (int) (userId % 16);
return String.format("数据库: ds%d, 表: user_info_%d", dbIndex, tableIndex);
} catch (Exception e) {
log.error("获取分片信息失败: userId={}", userId, e);
return "未知分片";
}
}
}
|
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