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Go text/template multiple templates demo
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| package main | |
| import ( | |
| "fmt" | |
| "html/template" | |
| "os" | |
| ) | |
| func main() { | |
| const parentTemplate = ` | |
| {{define "child"}} | |
| <p>Name: {{.Name}}, Age: {{.Age}}</p> | |
| {{end}} | |
| <!DOCTYPE html> | |
| <html> | |
| <head> | |
| <title>Parent Template</title> | |
| </head> | |
| <body> | |
| {{template "child" .}} | |
| </body> | |
| </html> | |
| ` | |
| parentData := struct { | |
| Name string | |
| Age int | |
| }{ | |
| Name: "John", | |
| Age: 30, | |
| } | |
| tmpl, err := template.New("parent").Parse(parentTemplate) | |
| if err != nil { | |
| fmt.Println("Error parsing parent template:", err) | |
| return | |
| } | |
| err = tmpl.Execute(os.Stdout, parentData) | |
| if err != nil { | |
| fmt.Println("Error executing parent template:", err) | |
| return | |
| } | |
| } |
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| package main | |
| import ( | |
| "encoding/json" | |
| "fmt" | |
| "os" | |
| "text/template" | |
| ) | |
| type TreeNode struct { | |
| Name string `json:"name"` | |
| MetaInfo string `json:"metaInfo"` | |
| } | |
| type MetaItem struct { | |
| Name string `json:"name"` | |
| Value interface{} `json:"value"` | |
| } | |
| func ParseMetaInfo(metaInfo string) []MetaItem { | |
| var metaItems []MetaItem | |
| json.Unmarshal([]byte(metaInfo), &metaItems) | |
| return metaItems | |
| } | |
| func main() { | |
| const tmplStrName1 = `{{- define "name1"}}Name: {{.Name}}{{- end}}` | |
| const tmplStrMeta1 = `{{- define "meta1"}}- Name: {{.Name}}, Value: {{.Value}}{{- end}}` | |
| const tmplStr = `{{template "name1" .}} | |
| MetaInfo: | |
| {{- range $index, $meta := parseMetaInfo .MetaInfo }} | |
| {{template "meta1" $meta}} | |
| {{- end}}` | |
| tmplFuncs := template.FuncMap{ | |
| "parseMetaInfo": ParseMetaInfo, | |
| } | |
| tmpl := template.New("example").Funcs(tmplFuncs) | |
| var tmplName1 = tmpl.New("name1") | |
| _, err := tmplName1.Parse(tmplStrName1) | |
| if err != nil { | |
| return | |
| } | |
| var tmplMeta1 = tmpl.New("meta1") | |
| _, err = tmplMeta1.Parse(tmplStrMeta1) | |
| if err != nil { | |
| return | |
| } | |
| tmpl, err = tmpl.Parse(tmplStr) | |
| if err != nil { | |
| fmt.Println("Error parsing template:", err) | |
| return | |
| } | |
| jsonStr := `{ | |
| "name": "root", | |
| "metaInfo": "[{\"name\":\"size\",\"value\":3344},{\"name\":\"type\",\"value\":\"hidden\"}]" | |
| }` | |
| var node TreeNode | |
| err = json.Unmarshal([]byte(jsonStr), &node) | |
| if err != nil { | |
| fmt.Println("Error parsing JSON:", err) | |
| return | |
| } | |
| tmpl.Execute(os.Stdout, node) | |
| } |
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