本例请求了天气api接口
对接流程
- 注册一个账号, 对接免费实况天气接口
- 阅读接口文档 http://tianqiapi.com/index/doc?version=day
- 请求接口
- 解析json
开发流程
- 创建一个 json.go 文件
- 需要引入的包
import ("encoding/json""fmt""io/ioutil""net/http"
)
-
定义 Weather Struct
go结构体内的变量首字母必须大写
type Weather struct {Nums intCityid stringCity stringDate stringWeek stringUpdate_time stringWea stringWea_img stringTem stringTem_day stringTem_night stringWin stringWin_speed stringWin_meter stringAir stringPressure stringHumidity string
}
- http.Get 请求接口
- json.Unmarshal 解析json
- gofmt -w json.go 格式化代码
完整代码
package mainimport ("encoding/json""fmt""io/ioutil""net/http"
)type Weather struct {Nums intCityid stringCity stringDate stringWeek stringUpdate_time stringWea stringWea_img stringTem stringTem_day stringTem_night stringWin stringWin_speed stringWin_meter stringAir stringPressure stringHumidity string
}func main() {resp, err := http.Get("http://v1.yiketianqi.com/free/day?appid=85841439&appsecret=EKCDLT4I&unescape=1&city=")if err != nil {fmt.Println("请求失败：", err)}defer resp.Body.Close()body, err := ioutil.ReadAll(resp.Body)if err != nil {fmt.Println("读取响应失败：", err)}fmt.Println(string(body))jsonData := []byte(string(body))var wea Weathererr2 := json.Unmarshal(jsonData, &wea)if err2 != nil {fmt.Println("error:", err2)return}fmt.Println("城市名称：", wea.City)fmt.Println("城市编号：", wea.Cityid)fmt.Println("当前日期：", wea.Date, wea.Week)fmt.Println("更新时间：", wea.Update_time)fmt.Println("今日天气：", wea.Tem, "°", wea.Wea, wea.Tem_night, "°~", wea.Tem_day, "°")fmt.Println("风向风力：", wea.Win, wea.Win_speed, wea.Win_meter)fmt.Println("空气质量：", wea.Air)fmt.Println("当前气压：", wea.Pressure)fmt.Println("当前湿度：", wea.Humidity)fmt.Println("数据来源：", "天气API（http://tianqiapi.com）")
}
 Boot ISO 原版可引导镜像下载)
)
