彩票助手后端1.0

src/main/java/com/xy/xyaicpzs/service/impl/LotteryDrawsServiceImpl.java

@@ -0,0 +1,65 @@
+package com.xy.xyaicpzs.service.impl;
+
+import com.baomidou.mybatisplus.core.conditions.query.QueryWrapper;
+import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
+import com.xy.xyaicpzs.domain.entity.LotteryDraws;
+import com.xy.xyaicpzs.mapper.LotteryDrawsMapper;
+import com.xy.xyaicpzs.service.LotteryDrawsService;
+import org.springframework.stereotype.Service;
+
+import java.util.Date;
+import java.util.List;
+
+/**
+* @author XY003
+* @description 针对表【lottery_draws(开奖结果表)】的数据库操作Service实现
+* @createDate 2025-06-14 09:48:10
+*/
+@Service
+public class LotteryDrawsServiceImpl extends ServiceImpl<LotteryDrawsMapper, LotteryDraws>
+    implements LotteryDrawsService{
+
+    @Override
+    public List<LotteryDraws> getRecentDraws(Integer limit) {
+        if (limit == null || limit <= 0) {
+            limit = 15;
+        }
+        QueryWrapper<LotteryDraws> queryWrapper = new QueryWrapper<>();
+        queryWrapper.orderByDesc("drawId").last("LIMIT " + limit);
+        return list(queryWrapper);
+    }
+
+    @Override
+    public LotteryDraws getByDrawId(Long drawId) {
+        return getById(drawId);
+    }
+
+    @Override
+    public List<LotteryDraws> getByDateRange(Date startDate, Date endDate) {
+        QueryWrapper<LotteryDraws> queryWrapper = new QueryWrapper<>();
+        if (startDate != null) {
+            queryWrapper.ge("drawDate", startDate);
+        }
+        if (endDate != null) {
+            queryWrapper.le("drawDate", endDate);
+        }
+        queryWrapper.orderByDesc("drawId");
+        return list(queryWrapper);
+    }
+
+    @Override
+    public List<LotteryDraws> queryDraws(Long drawId, Date startDate, Date endDate) {
+        QueryWrapper<LotteryDraws> queryWrapper = new QueryWrapper<>();
+        if (drawId != null) {
+            queryWrapper.eq("drawId", drawId);
+        }
+        if (startDate != null) {
+            queryWrapper.ge("drawDate", startDate);
+        }
+        if (endDate != null) {
+            queryWrapper.le("drawDate", endDate);
+        }
+        queryWrapper.orderByDesc("drawId");
+        return list(queryWrapper);
+    }
+}