GO语言中json与map的转换
直接上代码(需要引入encoding/json包)
// 当前程序的包名 package main // 导入其它的包 import ( "encoding/json" "fmt" ) func main() { map2json2map() } func map2json2map() { map1 := make(map[string]interface{}) map1["1"] = "hello" map1["2"] = "world" //return []byte str, err := json.Marshal(map1) if err != nil { fmt.Println(err) } fmt.Println("map to json", string(str)) //json([]byte) to map map2 := make(map[string]interface{}) err = json.Unmarshal(str, &map2) if err != nil { fmt.Println(err) } fmt.Println("json to map ", map2) fmt.Println("The value of key1 is", map2["1"]) }
执行代码 go run jsonmap.go ,结果如下:
map to json {"1":"hello","2":"world"}
json to map map[1:hello 2:world]
The value of key1 is hello