Object serialization and deserialization in Go language

With the application of distributed server technology, the function of object serialization and deserialization has become more and more common in programmers' work. The Go language also provides a variety of ways to implement object serialization and deserialization, and the usage scenarios of these methods are also different. This article will introduce in detail the implementation of object serialization and deserialization in Go language and how to use it.

1. What is object serialization and deserialization?

Object serialization and deserialization refers to converting an object data structure into a storable or transferable form to facilitate subsequent operations. The serialization process is to convert the object into a byte stream, which can be stored or transmitted over the network. The deserialization process is to convert the byte stream into an object again.

2. Object serialization and deserialization methods in Go language

1. gob

gob is a package provided by Go language. Used to implement object serialization and deserialization. Its advantage is that it has high efficiency, and its serialization format is very suitable for the data types of the Go language. However, because its parsing method is not flexible enough, it will be difficult to expand.

How to use gob serialization method:

(1) Create a structure to be serialized:

type Student struct {
    Name string
    Age  int
    Sex  int
}

(2) Serialize the structure object:

var stu Student
var buf bytes.Buffer
enc := gob.NewEncoder(&buf)
err = enc.Encode(stu)
if err != nil {
    log.Fatal("encode error:", err)
}

(3) Convert the serialized byte stream into a structure object:

dec := gob.NewDecoder(bytes.NewReader(buf.Bytes()))
err = dec.Decode(&stu)
if err != nil {
    log.Fatal("decode error:", err)
}

2. JSON

JSON is a lightweight Level data exchange format, commonly used for front-end and back-end data transfer on the Web. Support for JSON format is also provided in Go language. Compared with gob, the JSON format is more flexible and more suitable for cross-language data transmission. However, since the JSON parsing method requires additional parser support, the efficiency may be slightly lower than gob when parsing larger data structures.

How to use JSON serialization:

(1) Create a structure to be serialized:

type Student struct {
    Name string `json:"name"`
    Age  int    `json:"age"`
    Sex  int    `json:"sex"`
}

(2) Serialize the structure object:

var stu Student
buf, err := json.Marshal(stu)
if err != nil {
    log.Fatal("marshal error:", err)
}

(3) Convert the serialized byte stream into a structure object:

var stu Student
err = json.Unmarshal(buf, &stu)
if err != nil {
    log.Fatal("unmarshal error:", err)
}

3. Application of object serialization and deserialization

Object sequence Serialization and deserialization can be applied to different scenarios, such as:

1. Storage of data

When storing data to disk or database, the data can be Serialization to save storage space and improve reading and writing efficiency.

2. Network transmission

During network transmission, the data can be serialized, and then the serialized byte stream is sent to the receiver. The receiver Then deserialize the serialized byte stream to obtain the original data and complete the data transmission.

3. Data exchange

When transmitting data between different applications, since the data format and data type may be different, the data can be serialized to be consistent format, deserialized on the receiving side to achieve data exchange.

4. Summary

The Go language provides a variety of ways to implement object serialization and deserialization. Each method has its own advantages and disadvantages in different scenarios. In actual use, the appropriate method should be selected according to the actual situation to improve the efficiency and reusability of the program.

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