英文:
Different structs for same XML tag with different attributes
问题
假设我有这个XML：
<something><value type="item">...</value><value type="other">...</value></something>
我能否以某种方式将具有不同属性的值提取到结构体的不同字段中，例如：
type Something struct {Item Item `xml:"value[type=item]"` // 元代码Other Other `xml:"value[type=other]"`}
这种做法可行吗？我应该使用什么作为xml:属性？
英文:
Let's say I have this XML:
<something><value type="item">...</value><value type="other">...</value></something>
Can I somehow extract the value with different attributes to different items on my struct, like:
type Something struct {Item Item `xml:"value[type=item]"` // metacodeOther Other `xml:"value[type=other]"`}
Is it possible? What should I use as the xml: attribute?
答案1
得分: 1
我不认为直接将按属性值区分的项目列表映射到特定字段是可能的。你需要将其映射到一个切片，就像下面的示例中的Items切片一样：
package mainimport ("encoding/xml""fmt")func main() {type Item struct {Type string `xml:"type,attr"`Value string `xml:",chardata"`}type Something struct {XMLName xml.Name `xml:"something"`Name string `xml:"name"`Items []Item `xml:"value"`}var v Somethingdata := `<something><name> toto </name><value type="item"> my item </value><value type="other"> my other value </value></something>`err := xml.Unmarshal([]byte(data), &v)if err != nil {fmt.Printf("error: %v", err)return}fmt.Println(v)}
在解码后，你可以根据需要处理切片，提取值并将它们放入特定的字段中。
英文:
I do not think it is possible to directly map a list of items discriminated by an attribute value to specific fields. You need to map it to a slice, like in the following example (Items slice):
package mainimport ("encoding/xml""fmt")func main() {type Item struct {Type string `xml:"type,attr"`Value string `xml:",chardata"`}type Something struct {XMLName xml.Name `xml:"something"`Name string `xml:"name"`Items []Item `xml:"value"`}var v Somethingdata := `<something><name> toto </name><value type="item"> my item </value><value type="other"> my other value </value></something>`err := xml.Unmarshal([]byte(data), &v)if err != nil {fmt.Printf("error: %v", err)return}fmt.Println(v)}
Up to you to process the slice after the decoding to extract the values and put them in specific fields if needed.
通过集体智慧和协作来改善编程学习和解决问题的方式。致力于成为全球开发者共同参与的知识库，让每个人都能够通过互相帮助和分享经验来进步。
评论