dongqing344716 2015-01-19 07:51
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Golang序列化和反序列化

What's the best way (completeness and performance) in Golang to serialize and deserialize a struct to string and vice versa?

for example, if I have this struct:

struct Session {
   Properties map[string]interface{}
   Permissions []int64
}

I want to store it on Redis and fetch it back. I have tried to save, int and string, it's fine, but how to store struct object?

conn := redisConnectors.Get()

// set example

_, err := conn.Do(`SETEX`, `uid_key`, EXPIRE_SEC, user_id)
_, err = conn.Do(`SETEX`, `email_key`, EXPIRE_SEC, login_email)

// get example

user_id, err := redis.Int64(conn.Do(`GET`, `uid_key`))
login_email, err := redis.String(conn.Do(`GET`, `email_key`))
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  • duandongjin5647 2015-06-09 00:55
    关注

    Using gob and base64 could solve the problem, for example:

    import (
        "encoding/base64"
        "encoding/gob"
        "bytes"
    )
    
    type SX map[string]interface{}
    
    // go binary encoder
    func ToGOB64(m SX) string {
        b := bytes.Buffer{}
        e := gob.NewEncoder(&b)
        err := e.Encode(m)
        if err != nil { fmt.Println(`failed gob Encode`, err) }
        return base64.StdEncoding.EncodeToString(b.Bytes())
    }
    
    // go binary decoder
    func FromGOB64(str string) SX {
        m := SX{}
        by, err := base64.StdEncoding.DecodeString(str)
        if err != nil { fmt.Println(`failed base64 Decode`, err); }
        b := bytes.Buffer{}
        b.Write(by)
        d := gob.NewDecoder(&b)
        err = d.Decode(&m)
        if err != nil { fmt.Println(`failed gob Decode`, err); }
        return m
    }
    

    and when you need to serialize custom struct or type (for example Session struct), just add these lines:

    func init() {
        gob.Register(SX{})
        gob.Register(Session{}) 
    }
    
    本回答被题主选为最佳回答 , 对您是否有帮助呢?
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