90 lines
2.2 KiB
Go
90 lines
2.2 KiB
Go
package utils
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import (
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"bytes"
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"encoding/xml"
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"fmt"
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cs "git.skcks.cn/Shikong/go-gb28181/pkg/utils/charset"
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"github.com/axgle/mahonia"
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"golang.org/x/net/html/charset"
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"golang.org/x/text/encoding/simplifiedchinese"
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"golang.org/x/text/transform"
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"io"
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"strings"
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)
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// XMLMarshalString 将给定的对象v序列化为XML字符串，并指定字符集charset
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func XMLMarshalString(v interface{}, charset string) (string, error) {
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marshal, err := XMLMarshal(v, charset)
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if err != nil {
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return "", err
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}
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return string(marshal), nil
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}
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// XMLMarshal 将给定的对象obj序列化为XML格式的字节数组，并指定字符集charset
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func XMLMarshal(obj interface{}, charset string) ([]byte, error) {
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marshal := &bytes.Buffer{}
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encoder := xml.NewEncoder(marshal)
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encoder.Indent("", " ")
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err := encoder.Encode(&obj)
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if err != nil {
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return nil, err
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}
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err = encoder.Close()
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if err != nil {
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return nil, err
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}
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xmlStr := marshal.String()
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csStr := strings.ToUpper(charset)
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xmlStr = fmt.Sprintf("<?xml version=\"1.0\" encoding=\"%s\" ?>\r\n%s", csStr, xmlStr)
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xmlBytes := &bytes.Buffer{}
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err = func() (err error) {
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defer func() {
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if err := recover(); err != nil {
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var t transform.Transformer
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switch strings.ToUpper(charset) {
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case cs.GBK:
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t = simplifiedchinese.GBK.NewEncoder()
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case cs.GB2312:
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t = simplifiedchinese.HZGB2312.NewEncoder()
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case cs.GB18030:
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t = simplifiedchinese.GB18030.NewEncoder()
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default:
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err = fmt.Errorf("unsupported charset: %s", charset)
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return
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}
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writer := transform.NewWriter(xmlBytes, t)
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_, _ = writer.Write([]byte(xmlStr))
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_ = writer.Close()
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}
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}()
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enc := mahonia.NewEncoder(charset)
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xmlStr := enc.ConvertString(xmlStr)
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xmlBytes.Write([]byte(xmlStr))
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return nil
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}()
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return xmlBytes.Bytes(), nil
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}
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// XMLUnmarshal 将XML格式的字节数组data反序列化为对象obj
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func XMLUnmarshal(data []byte, obj interface{}) error {
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decoder := xml.NewDecoder(bytes.NewReader(data))
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decoder.CharsetReader = func(c string, input io.Reader) (io.Reader, error) {
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reader, err := charset.NewReader(input, c)
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return reader, err
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}
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err := decoder.Decode(&obj)
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if err != nil {
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return err
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}
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return nil
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}
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