英文:
Golang - unmarshal extra XML attributes
问题
有没有一种方法可以解析具有动态属性的XML标签（我不知道每次会得到哪些属性）。
也许目前还不支持。请参阅Issue 3633: encoding/xml: support for collecting all attributes
类似于：
package main
import (
"encoding/xml"
"fmt"
)
func main() {
var v struct {
Attributes []xml.Attr `xml:",any"`
}
data := `<TAG ATTR1="VALUE1" ATTR2="VALUE2" />`
err := xml.Unmarshal([]byte(data), &v)
if err != nil {
panic(err)
}
fmt.Println(v)
}
英文:
Is there a way to unmarshal XML tags with dynamic attributes (I don't know which attributes I'll get every time).
Maybe it's not supported yet. See Issue 3633: encoding/xml: support for collecting all attributes
Something like :
package main
import (
"encoding/xml"
"fmt"
)
func main() {
var v struct {
Attributes []xml.Attr `xml:",any"`
}
data := `<TAG ATTR1="VALUE1" ATTR2="VALUE2" />`
err := xml.Unmarshal([]byte(data), &v)
if err != nil {
panic(err)
}
fmt.Println(v)
}
答案1
得分: 6
截至2017年底，可以使用以下代码来支持此功能：
var v struct {
Attributes []xml.Attr `xml:",any,attr"`
}
请参阅 https://github.com/golang/go/issues/3633
英文:
As of late 2017, this is supported by using:
var v struct {
Attributes []xml.Attr `xml:",any,attr"`
}
Please see https://github.com/golang/go/issues/3633
答案2
得分: 4
你需要实现自己的XMLUnmarshaler。
package main
import (
"encoding/xml"
"fmt"
)
type CustomTag struct {
Name string
Attributes []xml.Attr
}
func (c *CustomTag) UnmarshalXML(d *xml.Decoder, start xml.StartElement) error {
c.Name = start.Name.Local
c.Attributes = start.Attr
return d.Skip()
}
func main() {
v := &CustomTag{}
data := []byte(`<tag ATTR1="VALUE1" ATTR2="VALUE2" />`)
err := xml.Unmarshal(data, &v)
if err != nil {
panic(err)
}
fmt.Printf("%+v\n", v)
}
输出结果为：
&{Name:tag Attributes:[{Name:{Space: Local:ATTR1} Value:VALUE1} {Name:{Space: Local:ATTR2} Value:VALUE2}]}
这里是示例代码的链接。
英文:
You need to implement your own XMLUnmarshaler
package main
import (
"encoding/xml"
"fmt"
)
type CustomTag struct {
Name string
Attributes []xml.Attr
}
func (c *CustomTag) UnmarshalXML(d *xml.Decoder, start xml.StartElement) error {
c.Name = start.Name.Local
c.Attributes = start.Attr
return d.Skip()
}
func main() {
v := &CustomTag{}
data := []byte(`<tag ATTR1="VALUE1" ATTR2="VALUE2" />`)
err := xml.Unmarshal(data, &v)
if err != nil {
panic(err)
}
fmt.Printf("%+v\n", v)
}
outputs
&{Name:tag Attributes:[{Name:{Space: Local:ATTR1} Value:VALUE1} {Name:{Space: Local:ATTR2} Value:VALUE2}]}
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