[A] fetch get

internal/fetch/fetch.go

@@ -0,0 +1,23 @@
+package fetch
+
+import (
+	"encoding/json"
+	"net/http"
+	"time"
+)
+
+// http 请求用
+// 总计超时时间限制5s
+var client = http.Client{Timeout: 5 * time.Second}
+
+// Get HTTP 工具类, GET 并解析返回的报文，如果有错误，返回 error
+// url 统一资源定位符（uniform resource locator;URL)
+// reply 返回值
+func Get(url string, reply interface{}) error {
+	resp, err := client.Get(url)
+	if err != nil {
+		return err
+	}
+	defer resp.Body.Close()
+	return json.NewDecoder(resp.Body).Decode(reply)
+}