golang 字符串重新编码

• golang 字符串重新编码

  //byte decode
  /**
  * function  对字符串重新编码
  *  params   text:需要编码的字符串
  *        encodeStr：编码类型；GB18030 GBK HZGB2312
  */
  func UTF8ReDecode(text string, encodeStr string) (string, error) {
    var reader io.Reader
    switch encodeStr {
    case "GB18030":
        reader = transform.NewReader(bytes.NewReader([]byte(text)), simplifiedchinese.GB18030.NewDecoder())
    case "GBK":
        reader = transform.NewReader(bytes.NewReader([]byte(text)), simplifiedchinese.GBK.NewDecoder())
    case "HZGB2312":
        reader = transform.NewReader(bytes.NewReader([]byte(text)), simplifiedchinese.HZGB2312.NewDecoder())
    default:
        reader = transform.NewReader(bytes.NewReader([]byte(text)), simplifiedchinese.GB18030.NewDecoder())
    }
    d, err := ioutil.ReadAll(reader)
    if err != nil {
        return "", err
    }
    return string(d), nil
  }