天气免费API接口，天气API接口请求讲解及源码下载
天气免费API接口，天气API接口请求讲解及源码下载
全是为了他
修改于 2019-12-17 10:14:39
修改于 2019-12-17 10:14:39
代码可运行
运行总次数：0
代码可运行
文章来源：https://www.sojson.com/blog/349.html
本站一直提供了免费的天气API接口供大家使用，目前日调用量平均为400万次每天左右。天气API介绍请看：https://www.sojson.com/blog/305.html ，由于一直有人在天气API接口使用上有疑问，我开发了一个标准调用天气API接口的Demo，面向对象的Demo，最简单的调用。
天气API接口目前调用情况
截止当天的18点之前的数据，下面看2个图。
详细数据统计图
天气接口详细图
所以还请大家在接入的时候，做好缓存策略，根据自身的业务做最大的缓存力度，能2个小时就别1个小时。您每一次请求我都要付费。免费不容易，且行且珍惜。
天气请求代码
本demo实例用最简单的代码实现。
天气接口Controller
/**
* 天气数据
* @param id
* @return
*/
@RequestMapping(value = "city/{id:1[0-9]{8}}", method = RequestMethod.GET)
public WeatherDto loadApi(@PathVariable("id") String id){
String vliCode = String.format(",%s,", id);
if(!cityCode.contains(vliCode)){
throw new RuntimeException("no_city_id");
}
return weatherManager.getById(id);
}天气接口Manager（数据请求）
//请求连接地址
final static String SOJSON_WEATHER_URL = "http://t.weather.sojson.com/api/weather/city/{1}";
/**
* 获取数据
* @param id
* @return
*/
@Cacheable(cacheNames = "weather_cache", key = "#id")// 从缓存获取，key为ID，缓存具体看 ehcache.xml 配置文件
public WeatherDto getById(String id) {
log.info("WeatherManager#getById: id={}", id);
try {
RestTemplate restTemplate = new RestTemplate();
WeatherDto dto = restTemplate.getForObject(SOJSON_WEATHER_URL , WeatherDto.class,id);
if(dto != null && dto.isSuccess()){
return dto;
}else{
log.error("获取天气数据返回错误：{}", dto);
}
} catch (RestClientException e) {
log.error("获取天气数据返回错误，出现异常.", e);
}
return null;
}就完成了。
天气接口返回
{
"message": "success感谢又拍云(upyun.com)提供CDN赞助",
"status": 200,
"date": "20191216",
"time": "2019-12-16 16:29:43",
"cityInfo": {
"city": "北京市",
"citykey": "101010100",
"parent": "北京",
"updateTime": "16:18"
},
"data": {
"shidu": "89%",
"pm25": 79.0,
"pm10": 0.0,
"quality": "轻度污染",
"wendu": "0",
"ganmao": "儿童、老年人及心脏、呼吸系统疾病患者人群应减少长时间或高强度户外锻炼",
"forecast": [{
"date": "16",
"high": "高温 2℃",
"low": "低温 -3℃",
"ymd": "2019-12-16",
"week": "星期一",
"sunrise": "07:28",
"sunset": "16:50",
"aqi": 97,
"fx": "西风",
"fl": "<3级",
"type": "小雪",
"notice": "小雪虽美，赏雪别着凉"
}, {
"date": "17",
"high": "高温 5℃",
"low": "低温 -7℃",
"ymd": "2019-12-17",
"week": "星期二",
"sunrise": "07:29",
"sunset": "16:51",
"aqi": 30,
"fx": "北风",
"fl": "3-4级",
"type": "晴",
"notice": "愿你拥有比阳光明媚的心情"
}, {
"date": "18",
"high": "高温 2℃",
"low": "低温 -7℃",
"ymd": "2019-12-18",
"week": "星期三",
"sunrise": "07:30",
"sunset": "16:51",
"aqi": 50,
"fx": "南风",
"fl": "<3级",
"type": "晴",
"notice": "愿你拥有比阳光明媚的心情"
}, {
"date": "19",
"high": "高温 4℃",
"low": "低温 -8℃",
"ymd": "2019-12-19",
"week": "星期四",
"sunrise": "07:30",
"sunset": "16:51",
"aqi": 50,
"fx": "北风",
"fl": "3-4级",
"type": "晴",
"notice": "愿你拥有比阳光明媚的心情"
}, {
"date": "20",
"high": "高温 0℃",
"low": "低温 -7℃",
"ymd": "2019-12-20",
"week": "星期五",
"sunrise": "07:31",
"sunset": "16:52",
"aqi": 30,
"fx": "南风",
"fl": "<3级",
"type": "晴",
"notice": "愿你拥有比阳光明媚的心情"
}, {
"date": "21",
"high": "高温 2℃",
"low": "低温 -7℃",
"ymd": "2019-12-21",
"week": "星期六",
"sunrise": "07:32",
"sunset": "16:52",
"aqi": 66,
"fx": "北风",
"fl": "<3级",
"type": "晴",
"notice": "愿你拥有比阳光明媚的心情"
}, {
"date": "22",
"high": "高温 3℃",
"low": "低温 -6℃",
"ymd": "2019-12-22",
"week": "星期日",
"sunrise": "07:32",
"sunset": "16:52",
"fx": "西风",
"fl": "<3级",
"type": "多云",
"notice": "阴晴之间，谨防紫外线侵扰"
}, {
"date": "23",
"high": "高温 3℃",
"low": "低温 -4℃",
"ymd": "2019-12-23",
"week": "星期一",
"sunrise": "07:33",
"sunset": "16:53",
"fx": "西北风",
"fl": "<3级",
"type": "多云",
"notice": "阴晴之间，谨防紫外线侵扰"
}, {
"date": "24",
"high": "高温 3℃",
"low": "低温 -4℃",
"ymd": "2019-12-24",
"week": "星期二",
"sunrise": "07:33",
"sunset": "16:53",
"fx": "东北风",
"fl": "<3级",
"type": "多云",
"notice": "阴晴之间，谨防紫外线侵扰"
}, {
"date": "25",
"high": "高温 3℃",
"low": "低温 -3℃",
"ymd": "2019-12-25",
"week": "星期三",
"sunrise": "07:34",
"sunset": "16:54",
"fx": "西北风",
"fl": "<3级",
"type": "多云",
"notice": "阴晴之间，谨防紫外线侵扰"
}, {
"date": "26",
"high": "高温 4℃",
"low": "低温 -5℃",
"ymd": "2019-12-26",
"week": "星期四",
"sunrise": "07:34",
"sunset": "16:55",
"fx": "北风",
"fl": "<3级",
"type": "多云",
"notice": "阴晴之间，谨防紫外线侵扰"
}, {
"date": "27",
"high": "高温 -2℃",
"low": "低温 -7℃",
"ymd": "2019-12-27",
"week": "星期五",
"sunrise": "07:34",
"sunset": "16:55",
"fx": "东风",
"fl": "<3级",
"type": "阴",
"notice": "不要被阴云遮挡住好心情"
}, {
"date": "28",
"high": "高温 -1℃",
"low": "低温 -8℃",
"ymd": "2019-12-28",
"week": "星期六",
"sunrise": "07:35",
"sunset": "16:56",
"fx": "东南风",
"fl": "<3级",
"type": "晴",
"notice": "愿你拥有比阳光明媚的心情"
}, {
"date": "29",
"high": "高温 -3℃",
"low": "低温 -8℃",
"ymd": "2019-12-29",
"week": "星期日",
"sunrise": "07:35",
"sunset": "16:57",
"fx": "东南风",
"fl": "<3级",
"type": "多云",
"notice": "阴晴之间，谨防紫外线侵扰"
}, {
"date": "30",
"high": "高温 0℃",
"low": "低温 -8℃",
"ymd": "2019-12-30",
"week": "星期一",
"sunrise": "07:35",
"sunset": "16:57",
"fx": "东风",
"fl": "<3级",
"type": "多云",
"notice": "阴晴之间，谨防紫外线侵扰"
}],
"yesterday": {
"date": "15",
"high": "高温 3℃",
"low": "低温 -2℃",
"ymd": "2019-12-15",
"week": "星期日",
"sunrise": "07:28",
"sunset": "16:50",
"aqi": 110,
"fx": "西南风",
"fl": "<3级",
"type": "多云",
"notice": "阴晴之间，谨防紫外线侵扰"
}
},
"success": true
}Ehcache缓存配置
<config xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns="http://www.ehcache.org/v3"
xmlns:jsr107="http://www.ehcache.org/v3/jsr107"
xsi:schemaLocation="
http://www.ehcache.org/v3 http://www.ehcache.org/schema/ehcache-core-3.0.xsd
http://www.ehcache.org/v3/jsr107 http://www.ehcache.org/schema/ehcache-107-ext-3.0.xsd">
<service>
<jsr107:defaults enable-statistics="true"/>
</service>
<!-- user 为该缓存名称 对应@Cacheable的属性cacheNames-->
<cache alias="weather_cache" >
<!-- 指定缓存 key 类型，对应@Cacheable的属性key -->
<key-type>java.lang.String</key-type>
<!-- 配置value类型 -->
<value-type>com.sojson.weather.api.demo.dto.WeatherDto</value-type>
<expiry>
<!-- 缓存 ttl，单位为分钟，现在设置的是2个小时 -->
<ttl unit="minutes">120</ttl>
</expiry>
<resources>
<!-- 分配资源大小 -->
<heap unit="entries">2000</heap>
<offheap unit="MB">100</offheap>
</resources>
</cache>
</config>这里配置了缓存ttl为120分钟，也就是2个小时，建议保持这个配置
源码下载：https://www.sojson.com/blog/349.html
版权所属：SO JSON在线解析
原文地址：https://www.sojson.com/blog/349.html
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