修改

extend/ca_v2/client_test.go

@@ -64,6 +64,43 @@ func TestGetServiceURL(t *testing.T) {
 	if response.WebToken != "token-1" || response.URL != "https://example.test/h5" {
 		t.Fatalf("unexpected response: %+v", response)
 	}
+	if string(response.ExpireTime) != "2026-05-01 10:00:00" {
+		t.Fatalf("unexpected expireTime: %s", response.ExpireTime)
+	}
+}
+
+func TestGetServiceURLWithNumericExpireTime(t *testing.T) {
+	server := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+		_ = json.NewEncoder(w).Encode(map[string]interface{}{
+			"result_code": 0,
+			"result_msg":  "",
+			"success":     true,
+			"body": map[string]interface{}{
+				"webToken":   "token-2",
+				"url":        "https://example.test/h5-2",
+				"expireTime": 1745918720,
+			},
+		})
+	}))
+	defer server.Close()
+
+	client := NewClient(server.URL, "test-app", "test-secret")
+	response, err := client.GetServiceURL(GetServiceURLRequest{
+		CertType:   "Personal",
+		Type:       "CERT_APPLY",
+		EntityID:   "user-2",
+		UserName:   "Bob",
+		UserIDCard: "654321",
+		UserPhone:  "13900000000",
+		AuthMethod: "face",
+	})
+	if err != nil {
+		t.Fatalf("GetServiceURL error: %v", err)
+	}
+
+	if string(response.ExpireTime) != "1745918720" {
+		t.Fatalf("unexpected expireTime: %s", response.ExpireTime)
+	}
 }
 
 func TestFetchH5FaceURLWithStringBody(t *testing.T) {

extend/ca_v2/types.go

@@ -1,6 +1,10 @@
 package cav2
 
-import "encoding/json"
+import (
+	"encoding/json"
+	"strconv"
+	"strings"
+)
 
 type responseEnvelope struct {
 	ResultCode int             `json:"result_code"`
@@ -30,7 +34,7 @@ type GetServiceURLRequest struct {
 type GetServiceURLResponse struct {
 	WebToken   string         `json:"webToken"`
 	URL        string         `json:"url"`
-	ExpireTime string `json:"expireTime"`
+	ExpireTime flexibleString `json:"expireTime"`
 }
 
 type CertSignRequest struct {
@@ -127,3 +131,39 @@ type PhoneVerificationRequest struct {
 	IDCard      string `json:"idCard"`
 	PhoneNumber string `json:"phoneNumber"`
 }
+
+type flexibleString string
+
+func (s *flexibleString) UnmarshalJSON(data []byte) error {
+	raw := strings.TrimSpace(string(data))
+	if raw == "" || raw == "null" {
+		*s = ""
+		return nil
+	}
+
+	var str string
+	if err := json.Unmarshal(data, &str); err == nil {
+		*s = flexibleString(str)
+		return nil
+	}
+
+	var number json.Number
+	if err := json.Unmarshal(data, &number); err == nil {
+		*s = flexibleString(number.String())
+		return nil
+	}
+
+	var integer int64
+	if err := json.Unmarshal(data, &integer); err == nil {
+		*s = flexibleString(strconv.FormatInt(integer, 10))
+		return nil
+	}
+
+	var floatValue float64
+	if err := json.Unmarshal(data, &floatValue); err == nil {
+		*s = flexibleString(strconv.FormatFloat(floatValue, 'f', -1, 64))
+		return nil
+	}
+
+	return nil
+}