获取天气(含PM2.5)信息百度接口
调用示例
返回示例
{"error":0,"status":"success","date":"2014-10-16","results":[{"currentCity":"广州","pm25":"168","index":[{"title":"穿衣","zs":"热","tipt":"穿衣指数","des":"天气热，建议着短裙、短裤、短薄外套、T恤等夏季服装。"},{"title":"洗车","zs":"较适宜","tipt":"洗车指数","des":"较适宜洗车，未来一天无雨，风力较小，擦洗一新的汽车至少能保持一天。"},{"title":"旅游","zs":"适宜","tipt":"旅游指数","des":"天气较好，温度适宜，是个好天气哦。这样的天气适宜旅游，您可以尽情地享受大自然的风光。"},{"title":"感冒","zs":"少发","tipt":"感冒指数","des":"各项气象条件适宜，无明显降温过程，发生感冒机率较低。"},{"title":"运动","zs":"较适宜","tipt":"运动指数","des":"天气较好，户外运动请注意防晒。推荐您进行室内运动。"},{"title":"紫外线强度","zs":"强","tipt":"紫外线强度指数","des":"紫外线辐射强，建议涂擦SPF20左右、PA++的防晒护肤品。避免在10点至14点暴露于日光下。"}],"weather_data":[{"date":"周四 10月16日 (实时：23℃)【这个比较坑，有的时候没有返回实时温度】","dayPictureUrl":"http://api.map.baidu.com/images/weather/day/qing.png","nightPictureUrl":"http://api.map.baidu.com/images/weather/night/qing.png","weather":"晴","wind":"微风","temperature":"29 ~ 18℃"},{"date":"周五","dayPictureUrl":"http://api.map.baidu.com/images/weather/day/qing.png","nightPictureUrl":"http://api.map.baidu.com/images/weather/night/qing.png","weather":"晴","wind":"微风","temperature":"30 ~ 19℃"},{"date":"周六","dayPictureUrl":"http://api.map.baidu.com/images/weather/day/qing.png","nightPictureUrl":"http://api.map.baidu.com/images/weather/night/qing.png","weather":"晴","wind":"微风","temperature":"30 ~ 19℃"},{"date":"周日","dayPictureUrl":"http://api.map.baidu.com/images/weather/day/duoyun.png","nightPictureUrl":"http://api.map.baidu.com/images/weather/night/duoyun.png","weather":"多云","wind":"微风","temperature":"31 ~ 20℃"}]}]}
调用需要申请ak，申请地址http://developer.baidu.com/map/index.php?title=webapi
上面的红色部门就是pm25了，
接口参数说明，出处http://www.cnblogs.com/txw1958/p/baidu-weather-forecast-api.html
| 参数类型 | 参数名称 | 是否必须 | 具体描述 |
|---|---|---|---|
| String | location | true | 输入城市名或经纬度，城市名称如:北京或者131，经纬度格式为lng,lat坐标如: location=116.305145,39.982368;全国值为all,返回省会城市自治区，港澳台天气情况多城市天气预报中间"|"分隔,location=116.305145,39.982368| 122.305145,36.982368|…. |
| String | output | false | 输出的数据格式，默认为xml格式，当output设置为’json’时，输出的为json格式的数据; |
| String | coord_type | false | 请求参数坐标类型，默认为gcj02经纬度坐标。允许的值为bd09ll、bd09mc、gcj02、wgs84。bd09ll表示百度经纬度坐标，bd09mc表示百度墨卡托坐标，gcj02表示经过国测局加密的坐标。wgs84表示gps获取的坐标。 |
返回结果
| 参数名称 | 含义 | 说明 | |
|---|---|---|---|
| currentCity | 当前城市 | 返回城市名 | |
| status | 返回结果状态信息 | ||
| date | 当前时间 | 年-月-日 | |
| results | 天气预报信息 | 白天可返回近期3天的天气情况（今天、明天、后天）、晚上可返回近期4天的天气情况（今天、明天、后天、大后天） | |
| results.currentCity | 当前城市 | ||
| results.weather_data | weather_data.date | 天气预报时间 | |
| weather_data.dayPictureUrl | 白天的天气预报图片url | ||
| weather_data.nightPictureUrl | 晚上的天气预报图片url | ||
| weather_data.weather | 天气状况 | 所有天气情况（”|”分隔符）：晴|多云|阴|阵雨|雷阵雨|雷阵雨伴有冰雹|雨夹雪|小雨|中雨|大雨|暴雨|大暴雨|特大暴雨|阵雪|小雪|中雪|大雪|暴雪|雾|冻雨|沙尘暴|小雨转中雨|中雨转大雨|大雨转暴雨|暴雨转大暴雨|大暴雨转特大暴雨|小雪转中雪|中雪转大雪|大雪转暴雪|浮尘|扬沙|强沙尘暴|霾 | |
| weather_data.wind | 风力 | ||
| weather_data.temperature | 温度 | ||
