go json 序列化问题

两种方法解决

将value 转为 16进制或base64，服务端单独做一层解码

go
bt := []byte{230,136}
hexStr := hex.EncodeToString(bt)
args := map[string]string{}
args["a"] = hexStr
fmt.Printf("a %v\n",bt)
println("len a", len(bt))
input, err := json.Marshal(args)
if err != nil {
fmt.Println(err)
}
var decodeArgs map[string]string
err =json.Unmarshal(input, &decodeArgs)
if err != nil {
return
}
b, err := hex.DecodeString(decodeArgs["a"])
if err != nil {
return
}
fmt.Println("b", b)
fmt.Println("len b", len(b))
// output
a [230 136]
len a 2
b [230 136]
len b 2 1
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	bt := []byte{230,136}
	hexStr := hex.EncodeToString(bt)
	args := map[string]string{}
	args["a"] = hexStr

	fmt.Printf("a %v\n",bt)
	println("len a", len(bt))

	input, err := json.Marshal(args)
	if err != nil {
		fmt.Println(err)
	}

	var decodeArgs map[string]string

	err =json.Unmarshal(input, &decodeArgs)
	if err != nil {
		return
	}

	b, err := hex.DecodeString(decodeArgs["a"])

	if err != nil {
		return
	}
	fmt.Println("b", b)
	fmt.Println("len b", len(b))

// output
a [230 136]
len a 2
b [230 136]
len b 2

服务端声明一个对应的接收struct

go
type tb struct {
Bytes []byte
}
func test() {
bt := []byte{230,136}
args := tb{Bytes: bt}
fmt.Printf("a %v\n",bt)
println("len a", len(bt))
input, err := json.Marshal(args)
if err != nil {
fmt.Println(err)
}
var decodeArgs tb
err =json.Unmarshal(input, &decodeArgs)
if err != nil {
return
}
if err != nil {
return
}
fmt.Println("b", decodeArgs.Bytes)
fmt.Println("len b", len(decodeArgs.Bytes))
}
// output
a [230 136]
len a 2
b [230 136]
len b 2 1
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type  tb struct {
	Bytes []byte
}


func test() {
	bt := []byte{230,136}
	args := tb{Bytes: bt}
	fmt.Printf("a %v\n",bt)
	println("len a", len(bt))

	input, err := json.Marshal(args)
	if err != nil {
		fmt.Println(err)
	}

	var decodeArgs tb

	err =json.Unmarshal(input, &decodeArgs)
	if err != nil {
		return
	}

	if err != nil {
		return
	}
	fmt.Println("b", decodeArgs.Bytes)
	fmt.Println("len b", len(decodeArgs.Bytes))
}

// output
a [230 136]
len a 2
b [230 136]
len b 2