英文:
Go template to struct
问题
我有一个Go模板，应该解析为一个结构体。我该如何将模板执行函数的bytes.Buffer结果转换回struct？Playground
package mainimport ("bytes""encoding/gob""fmt""log""text/template")type Data struct {Age intUsername stringSubData SubData}type SubData struct {Name string}func main() {s := SubData{Name: "J. Jr"}d := Data{Age: 26, Username: "HelloWorld", SubData: s}tmpl := "{{ .SubData }}"t := template.New("My template")t, _ = t.Parse(string(tmpl))buffer := new(bytes.Buffer)t.Execute(buffer, d)fmt.Println(buffer)// 写入enc := gob.NewEncoder(buffer)err := enc.Encode(s)if err != nil {log.Fatal("编码错误：", err)}// 读取buffer = bytes.NewBuffer(buffer.Bytes())e := new(SubData)dec := gob.NewDecoder(buffer)err = dec.Decode(e)if err != nil {log.Fatal("解码错误：", err)}fmt.Println(e, err)}
英文:
I have a Go template that should resolve to a struct. How can I convert the bytes.Bufferresult from template execute function back to the struct. Playground
package mainimport ("bytes""encoding/gob""fmt""log""text/template")type Data struct {Age intUsername stringSubData SubData}type SubData struct {Name string}func main() {s := SubData{Name: "J. Jr"}d := Data{Age: 26, Username: "HelloWorld", SubData: s}tmpl := "{{ .SubData }}"t := template.New("My template")t, _ = t.Parse(string(tmpl))buffer := new(bytes.Buffer)t.Execute(buffer, d)fmt.Println(buffer)// writingenc := gob.NewEncoder(buffer)err := enc.Encode(s)if err != nil {log.Fatal("encode error:", err)}// readingbuffer = bytes.NewBuffer(buffer.Bytes())e := new(SubData)dec := gob.NewDecoder(buffer)err = dec.Decode(e)if err != nil {log.Fatal("decode error:", err)}fmt.Println(e, err)}
答案1
得分: 5
你不能这样做。这根本是不可能的。
但是为什么会有人想要做这样的事情呢？为什么不直接通过 gob 发送和解码你的 Data 呢？为什么要创建一个文本表示然后再进行 gob 编码呢？
英文:
You cannot. This is plain simply impossible.
But why on earth would anybody want to do something like this? Why don't you just send your Data directly via gob and decode it directly? Why creating a textual representation which you gob?
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