Go GBK 字节流转字符串

Go GBK 字节流转字符串

package main

import (
	"bytes"
	"encoding/hex"
	"fmt"
	"io/ioutil"

	"github.com/axgle/mahonia"
	"golang.org/x/text/encoding/simplifiedchinese"
	"golang.org/x/text/transform"
)

// BytesFixString []byte 去除空数据(0), (ASCII)再转成 string. 防止溢出
func BytesFixString(origin []byte) string {
	index := bytes.IndexByte(origin, 0)
	if index == -1 {
		return string(origin[0:])
	}
	return string(origin[0:index])
}

// BytesCharString []byte 转 string
func BytesCharString(value []byte, decodes ...string) string {
	decode := "gbk"
	if len(decodes) > 0 {
		decode = decodes[0]
	}
	return mahonia.NewDecoder(decode).ConvertString(BytesFixString(value))
}

// UTF8ToGBK UTF8ToGBK
func UTF8ToGBK(s []byte) ([]byte, error) {
	reader := transform.NewReader(bytes.NewReader(s), simplifiedchinese.GBK.NewEncoder())
	return ioutil.ReadAll(reader)
}

func main() {
	// value, _ := hex.DecodeString("d4c1423838383838")
	value, _ := UTF8ToGBK([]byte("粤B88888"))
	fmt.Printf("value hex: %s\n", hex.EncodeToString(value))
	fmt.Printf("value: %s\n", BytesCharString(value))
}

=> "粤B88888"