Initial commit

common/utils/convertUtil.go

@@ -0,0 +1,64 @@
+package utils
+
+import (
+	"encoding/json"
+	"fmt"
+
+	"go.mongodb.org/mongo-driver/bson"
+)
+
+//ToBsonM 将struct转换为 Bson Map
+func ToBsonM(s interface{}) (bson.M, error) {
+	data, err := bson.Marshal(s)
+	if err != nil {
+		return nil, err
+	}
+	m := make(bson.M)
+	if err := bson.Unmarshal(data, &m); err != nil {
+		return nil, err
+	}
+	return m, nil
+}
+
+// 将page转换为数据库的skip、limit
+func ToDBPage(pageNum int64, pageSize int64) (skip int64, limit int64) {
+	return (pageNum - 1) * pageSize, pageSize
+}
+
+//JSONStruct2Map  将struct转换为Map
+func JSONStruct2Map(obj interface{}) (map[string]interface{}, error) {
+	m := make(map[string]interface{})
+	j, err := json.Marshal(obj)
+	if err != nil {
+		return nil, err
+	}
+	if err := json.Unmarshal(j, &m); err != nil {
+		return nil, err
+	}
+	return m, err
+}
+
+//Map2JSONStruct  将map转换为Json struct
+func Map2JSONStruct(v interface{}, m map[string]interface{}) error {
+	j, err := json.Marshal(m)
+	if err != nil {
+		return err
+	}
+	if err := json.Unmarshal(j, v); err != nil {
+		return err
+	}
+	return err
+}
+
+// struct转换为Map
+func Struct2Map(obj interface{}) map[string]interface{} {
+	m := make(map[string]interface{})
+	b, err := json.Marshal(obj)
+	if err != nil {
+		return m
+	}
+	if err = json.Unmarshal(b, &m); err != nil {
+		fmt.Println(err)
+	}
+	return m
+}