From 779633ee344c5571985c5779468073c1ca7373bd Mon Sep 17 00:00:00 2001
From: kaiyu <404897439@qq.com>
Date: Fri, 29 Oct 2021 15:24:32 +0800
Subject: [PATCH] screen-api            获取城市AQI接口

---
 screen-api/src/main/java/com/moral/api/service/impl/CityAqiServiceImpl.java |   32 ++++++++++++++++++++++++++++++++
 1 files changed, 32 insertions(+), 0 deletions(-)

diff --git a/screen-api/src/main/java/com/moral/api/service/impl/CityAqiServiceImpl.java b/screen-api/src/main/java/com/moral/api/service/impl/CityAqiServiceImpl.java
index be69027..e200f04 100644
--- a/screen-api/src/main/java/com/moral/api/service/impl/CityAqiServiceImpl.java
+++ b/screen-api/src/main/java/com/moral/api/service/impl/CityAqiServiceImpl.java
@@ -1,5 +1,6 @@
 package com.moral.api.service.impl;
 
+import com.alibaba.fastjson.JSON;
 import com.alibaba.fastjson.JSONObject;
 import com.baomidou.mybatisplus.core.conditions.query.QueryWrapper;
 import com.moral.api.entity.CityAqi;
@@ -8,9 +9,11 @@
 import com.moral.api.mapper.ForecastMapper;
 import com.moral.api.service.CityAqiService;
 import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
+import com.moral.constant.RedisConstants;
 import com.moral.util.DateUtils;
 
 import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.data.redis.core.RedisTemplate;
 import org.springframework.stereotype.Service;
 import org.springframework.util.ObjectUtils;
 
@@ -36,6 +39,9 @@
 
     @Autowired
     private ForecastMapper forecastMapper;
+
+    @Autowired
+    private RedisTemplate redisTemplate;
 
     @Override
     public List<Map<String, Object>> measuredCompareForecastOfO3(Map<String, Object> params) {
@@ -92,4 +98,30 @@
         }
         return result;
     }
+
+    @Override
+    public Map<String, Object> queryCityAqiByRegionCode(Integer regionCode) {
+        Map<String,Object> value = (Map<String, Object>) redisTemplate.opsForHash().get(RedisConstants.CITY_AQI,String.valueOf(regionCode));
+        if(value==null)
+            value = queryCityAqiByRegionCodeFromDB(regionCode);
+        return value;
+    }
+
+    /**
+    * @Description: ������������������������
+            * @Param: [regionCode]
+            * @return: java.util.Map<java.lang.String,java.lang.Object>
+            * @Author: ���������
+            * @Date: 2021/10/28
+            */
+    private Map<String, Object> queryCityAqiByRegionCodeFromDB(Integer regionCode) {
+        QueryWrapper<CityAqi> wrapper = new QueryWrapper();
+        wrapper.eq("city_code",regionCode);
+        wrapper.orderByDesc("time");
+        wrapper.last(true,"limit 1");
+        CityAqi cityAqi = cityAqiMapper.selectOne(wrapper);
+        String value = cityAqi.getValue();
+        redisTemplate.opsForHash().put(RedisConstants.CITY_AQI,regionCode,value);
+        return  JSON.parseObject(value,Map.class);
+    }
 }

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