feat(实现功能): 使用高德IP定位2.0实现功能

aipdw_util.go

@@ -0,0 +1,42 @@
+package aipdw
+
+import (
+	"crypto/md5"
+	"encoding/hex"
+	"fmt"
+	"net/url"
+	"sort"
+	"strings"
+)
+
+type reqLBS struct {
+	SK   string
+	Args map[string]string
+}
+
+func (r *reqLBS) Encode() string {
+	r.Signature()
+	req := url.Values{}
+	for k, v := range r.Args {
+		req.Set(k, v)
+	}
+	return req.Encode()
+}
+
+func (r *reqLBS) Signature() {
+	if r.Args == nil {
+		r.Args = make(map[string]string)
+	}
+	var keys []string
+	for k := range r.Args {
+		keys = append(keys, k)
+	}
+	sort.Strings(keys)
+	var keyValue []string
+	for i := 0; i < len(keys); i++ {
+		keyValue = append(keyValue, fmt.Sprintf("%s=%s", keys[i], r.Args[keys[i]]))
+	}
+	signStr := strings.Join(keyValue, "&") + r.SK
+	signMd5 := md5.Sum([]byte(signStr))
+	r.Args["sig"] = hex.EncodeToString(signMd5[:])
+}