add getListByPage

query/baseservice.go

@@ -31,6 +31,24 @@ func (g baseService) List() ([]string, error) {
 	return res, nil
 }
 
+func (g baseService) ListByPage(pageSize int, pageNum int) ([]string, error) {
+	all, err := getAll(g.rdb, g.service)
+	if err != nil {
+		return nil, err
+	}
+	sort.Sort(ServiceInfoList(all))
+	start := pageSize * pageNum
+	end := start + pageSize
+	if len(all) < end {
+		end = len(all)
+	}
+	var res []string
+	for _, v := range all[start:end] {
+		res = append(res, string(v.Message()))
+	}
+	return res, nil
+}
+
 func (g baseService) ServiceInfo(serviceid string) (string, error) {
 	info, err := getOne(g.rdb, g.service, serviceid)
 	if err != nil {
@@ -53,12 +71,25 @@ func getAll(rdb *redis.Client, serviceType common.ServiceType) (ServiceInfoList,
 		return nil, err
 	}
 	var list []ServiceInfo
+	var ctx = context.Background()
+	var resList = make([]*redis.MapStringStringCmd, 0)
+
+	_, err = rdb.Pipelined(ctx, func(pip redis.Pipeliner) error {
 		for _, key := range keys {
-		res := rdb.HGetAll(context.Background(), key)
+			cmd := pip.HGetAll(ctx, key)
+			resList = append(resList, cmd)
+		}
+		return nil
+	})
+	if err != nil {
+		return nil, err
+	}
+	for _, res := range resList {
 		if info := parseInfo(serviceType, res); info != nil {
 			list = append(list, info)
 		}
 	}
+
 	return list, nil
 }
 

query/interface.go

@@ -5,6 +5,7 @@ import "encoding/json"
 type ServiceQuery interface {
 	ModuleName() string
 	List() ([]string, error)
+	ListByPage(pageSize int, pageNum int) ([]string, error)
 	ServiceInfo(instance string) (string, error)
 }