Go easyjson使用及反射原理

go get -u github.com/mailru/easyjson
go install  github.com/mailru/easyjson/easyjsonorgo
go build -o easyjson github.com/mailru/easyjson/easyjson(这里默认在当前目录生成easyjson二进制可执行文件)

# for Go < 1.17
go get -u github.com/mailru/easyjson/...

# for Go >= 1.17
go get github.com/mailru/easyjson && go install github.com/mailru/easyjson/...@latest

go mod init demo

package model
import "time"
//model:json
type School struct {
    Name string `json:"name"`
    Addr string `json:"addr"`
}
type Student struct {
    Id       int       `json:"id"`
    Name     string    `json:"s_name"`
    School   School    `json:"s_chool"`
    Birthday time.Time `json:"birthday"`

easyjson -all student.go

package main
 
import (
    "demo/model"
    "fmt"
    "time"
)
func main() {
    s := model.Student{
        Id:   11,
        Name: "qq",
        School: model.School{
            Name: "CUMT",
            Addr: "xz",
        },
        Birthday: time.Now(),
    }
    bt, err := s.MarshalJSON() // MarshalJSON
    fmt.Println(string(bt), err)
    json := `{"id":1,"s_name":"克莱尔","s_chool":{"name":"中南","addr":"wuhan"},"birthday":"2003-08-04T20:58:07.9894603+08:00"}`
    str := model.Student{}
    str.UnmarshalJSON([]byte(json)) // UnmarshalJSON
    fmt.Println(str)
}