Go 语言 json解析框架与 gjson 详解

 go get github.com/tidwall/gjson

    json := `{"name":{"first":"uncle","last":"suta"}}`
    lastName := gjson.Get(json, "name.last")
    fmt.Println(lastName.String()) // "uncle"

// Result represents a json value that is returned from Get().
type Result struct {
   // Type is the json type
   Type Type
   // Raw is the raw json
   Raw string
   // Str is the json string
   Str string
   // Num is the json number
   Num float64
   // Index of raw value in original json, zero means index unknown
   Index int
   // Indexes of all the elements that match on a path containing the '#'
   // query character.
   Indexes []int
}

String() string
Bool() bool
Int() int64
Uint() uint64
Float() float64
Time() time.Time
Array() []Result
IsObject() bool
IsArray() bool
ForEach(iterator func(key Result, value Result) bool)
Map() map[string]Result
Get(path string) Result
arrayOrMap(vc byte, valueize bool) (r arrayOrMapResult)
Exists() bool
Value() interface{}
Less(token Result, caseSensitive bool) bool
Paths(json string) []string
Path(json string) string

  json := `{"list": ["a", "b", "c"]}`
  list := gjson.Get(json, "list")
  list.ForEach(func(_, element gjson.Result) bool {
    fmt.Println(element)
    return true
  })