我正在尝试将JSON解组到我的Mail结构,但是Go在解析html_tmpl和text_tmpl字段时返回错误。 我该如何解决这个问题?
HtmlTmpl字段来自:
html, err := template.ParseFiles(pathToHTMLFile)
这是您可以测试的基本示例
package main
import (
"encoding/json"
"fmt"
"html/template"
"time"
)
type Mail struct {
Id string `json:"id"`
Subject string `json:"subject"`
From string `json:"from"`
To string `json:"to"`
Date time.Time `json:"date"`
HtmlTmpl template.Template `json:"html_tmpl"`
TextTmpl template.Template `json:"text_tmpl"`
Context map[string]string `json:"context"`
}
func main() {
mail := &Mail{}
s := `{"id":"","subject":"Test mail","from":"[email protected]","to":"[email protected]","date":"0001-01-01T00:00:00Z","html_tmpl":{"Tree":{"Name":"template.html","ParseName":"template.html","Root":{"NodeType":11,"Pos":0,"Nodes":[{"NodeType":0,"Pos":0,"Text":"PCFET0NUWVBFIGh0bWw+CjxodG1sIGxhbmc9InJ1Ij4KPGhlYWQ+Cgk8bWV0YSBodHRwLWVxdWl2PSJDb250ZW50LVR5cGUiIGNvbnRlbnQ9InRleHQvaHRtbCIgY2hhcnNldD0iVVRGLTgiPgoJPG1ldGEgbmFtZT0idmlld3BvcnQiIGNvbnRlbnQ9IndpZHRoPWRldmljZS13aWR0aCwgaW5pdGlhbD0xIj4KCTxtZXRhIGh0dHAtZXF1aXY9IlgtVUEtQ29tcGF0aWJsZSIgY29udGVudD0iSUU9ZWRnZSI+Cgk8dGl0bGU+0J/RgNC+0LLQtdGA0LrQsCDRgdCy0Y/Qt9C4PC90aXRsZT4KPC9oZWFkPgo8Ym9keT4KCTxzcGFuPg=="},{"NodeType":1,"Pos":298,"Line":10,"Pipe":{"NodeType":14,"Pos":298,"Line":10,"IsAssign":false,"Decl":null,"Cmds":[{"NodeType":4,"Pos":298,"Args":[{"NodeType":8,"Pos":298,"Ident":["msg"]}]}]}},{"NodeType":0,"Pos":305,"Text":"PC9zcGFuPgo8L2JvZHk+CjwvaHRtbD4="}]}}},"text_tmpl":{"Tree":{"Name":"template.txt","ParseName":"template.txt","Root":{"NodeType":11,"Pos":0,"Nodes":[{"NodeType":1,"Pos":2,"Line":1,"Pipe":{"NodeType":14,"Pos":2,"Line":1,"IsAssign":false,"Decl":null,"Cmds":[{"NodeType":4,"Pos":2,"Args":[{"NodeType":8,"Pos":2,"Ident":["msg"]}]}]}}]}}},"context":{"msg":"Hi!"}}`
err := json.Unmarshal([]byte(s), mail)
fmt.Println(err)
fmt.Println(mail)
}
template.Template
不支持封送到JSON或从JSON封送。它是具有未导出字段的结构,并且未实现用于处理封送/拆送逻辑(例如template.Template
)的接口。
您应该做的是在您的JSON和结构中包含源模板文本,然后解组源模板文本后,将其解析为后期处理步骤。如果要封送包含模板的结构,则它应仅包含源模板文本(json.Unmarshaler
字段应标记为省略,如json.Unmarshaler
)。