序列化 xml 时添加 cdata 标签

message/message.go

@@ -2,6 +2,7 @@ package message
 
 import (
 	"encoding/xml"
+
 	"github.com/silenceper/wechat/device"
 )
 
@@ -181,22 +182,32 @@ type ResponseEncryptedXMLMsg struct {
 	Nonce        string   `xml:"Nonce"        json:"Nonce"`
 }
 
+// CDATA  使用该类型,在序列化为 xml 文本时文本会被解析器忽略
+type CDATA string
+
+// MarshalXML 实现自己的序列化方法
+func (c CDATA) MarshalXML(e *xml.Encoder, start xml.StartElement) error {
+	return e.EncodeElement(struct {
+		string `xml:",cdata"`
+	}{string(c)}, start)
+}
+
 // CommonToken 消息中通用的结构
 type CommonToken struct {
 	XMLName      xml.Name `xml:"xml"`
-	ToUserName   string   `xml:"ToUserName"`
-	FromUserName string   `xml:"FromUserName"`
+	ToUserName   CDATA    `xml:"ToUserName"`
+	FromUserName CDATA    `xml:"FromUserName"`
 	CreateTime   int64    `xml:"CreateTime"`
 	MsgType      MsgType  `xml:"MsgType"`
 }
 
 //SetToUserName set ToUserName
-func (msg *CommonToken) SetToUserName(toUserName string) {
+func (msg *CommonToken) SetToUserName(toUserName CDATA) {
 	msg.ToUserName = toUserName
 }
 
 //SetFromUserName set FromUserName
-func (msg *CommonToken) SetFromUserName(fromUserName string) {
+func (msg *CommonToken) SetFromUserName(fromUserName CDATA) {
 	msg.FromUserName = fromUserName
 }