42 lines
906 B
Go
42 lines
906 B
Go
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package service
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import (
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"VideoStream/dao"
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"VideoStream/worker"
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"encoding/json"
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"fmt"
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"strconv"
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)
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// 获取用户信息，有redis缓存
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func GetUserByIDWithCache(id int) dao.User {
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if id <= 0 {
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return dao.User{}
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}
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var user dao.User
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//先从redis获取
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key := "user_info_" + strconv.Itoa(id)
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user_str := worker.GetRedis(key)
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if user_str != "" {
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err := json.Unmarshal([]byte(user_str), &user)
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if err != nil {
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fmt.Println("get user info , json unmarshal error:", err, "\tuser_str:", user_str)
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return dao.User{}
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}
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} else {
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user = dao.FindUserByID2(id)
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if user.ID != 0 {
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userJson, err := json.Marshal(user)
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if err != nil {
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fmt.Println("get user info , json marshal error:", err)
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return dao.User{}
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}
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success := worker.SetRedis(key, string(userJson))
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if !success {
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fmt.Println("set redis error,user json:", string(userJson))
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}
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}
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}
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return user
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}
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