diff --git a/get_coupon.go b/get_coupon.go
index 6decdad..79765fc 100644
--- a/get_coupon.go
+++ b/get_coupon.go
@@ -5,16 +5,16 @@ import (
 	"errors"
 )
 
-func GetCouponInfo(dbname,couponId string, url ...string) (string, error) {
+func GetCouponInfo(dbname,couponId string, url ...string) (map[string]string, error) {
 
 	if dbname == "" {
-		return "", errors.New("参数错误")
+		return nil, errors.New("参数错误")
 	}
 
 	conn, err := rpc_server_conn(url...)
 
 	if err != nil {
-		return "", err
+		return nil, err
 	}
 	defer conn.Close()
 
@@ -25,31 +25,31 @@ func GetCouponInfo(dbname,couponId string, url ...string) (string, error) {
 
 	req, err := SetReqData(arg)
 	if err != nil {
-		return "", err
+		return nil, err
 	}
 	res := &CouponResponse{}
 
 	err = conn.GetCouponInfo(req, res)
 
 	if err != nil {
-		return "", err
+		return nil, err
 	}
 
 	res_data_de, err := GetResData(res)
 	if err != nil {
-		return "", err
+		return nil, err
 	}
 
-	var bankCode string
-	err = json.Unmarshal([]byte(res_data_de),&bankCode)
+	var couponInfo map[string]string
+	err = json.Unmarshal([]byte(res_data_de),&couponInfo)
 
 	if err != nil {
-		return "", err
+		return nil, err
 	}
 
 	if res_data_de == "" {
-		return "", nil
+		return nil, nil
 	}
 
-	return bankCode, nil
+	return couponInfo, nil
 }
diff --git a/get_coupon_test.go b/get_coupon_test.go
new file mode 100644
index 0000000..fba6efd
--- /dev/null
+++ b/get_coupon_test.go
@@ -0,0 +1,13 @@
+package couponrpc
+
+import "testing"
+
+func Test_getCoupon(t *testing.T) {
+
+	dbname := "shop_v2"
+	couponId := "4"
+	res, err := GetCouponInfo(dbname, couponId)
+	t.Log(res)
+	t.Log(err)
+
+}