Here的工作程序。下面的解释。
package main
import "fmt"
import "strings"
import "reflect"
type Alias struct {
Name string
DevicePath string
GuiPath string
Setpoint string
Command string
Status string
FunctionCmds string
}
type Manifold struct {
Final01 Alias "Final01,/Gaspanel/Shared/Final01,,,wOpen,rIsOpen,"
Dump01 Alias "Dump01,/Gaspanel/Shared/Dump01,,,wOpen,rIsOpen,"
N2Vent01 Alias "N2Vent01,/Gaspanel/Shared/N2Vent01,,,wOpen,rIsOpen,"
N2Vent201 Alias "N2Vent201,/Gaspanel/Shared/N2Vent201,,,wOpen,rIsOpen,"
PurgeValve Alias "PurgeValve,/Gaspanel/Shared/Purge01,,,wOpen,rIsOpen,"
}
func MapTagedAliasToChamber(chamber string, struc interface{}) []string {
attributeStruct := reflect.ValueOf(struc).Elem()
typeAttributeStruct := attributeStruct.Type()
attributes := make([]string, attributeStruct.NumField(), attributeStruct.NumField())
for i := 0; i < attributeStruct.NumField(); i++ {
alias := attributeStruct.Field(i)
tag := string(typeAttributeStruct.Field(i).Tag)
name := typeAttributeStruct.Field(i).Name
params := strings.Split(tag, ",")
alias = reflect.New(reflect.TypeOf(Alias{})).Elem()
for i := 0; i < alias.NumField(); i++ {
alias.Field(i).SetString(params[i])
}
attributeStruct.Field(i).Set(alias)
fmt.Printf("%d: %s %s = %v\n", i, name, alias.Type(), alias.Interface())
}
return attributes
}
func main() {
Attr := Manifold{}
MapTagedAliasToChamber("A", &Attr)
fmt.Println("Final01 = ", Attr.Final01.Command)
}
问题是你原来的计划,在那里你创建了一个新的名为reflect.Value
代表alias
类型*Alias
的值的38行,然后用您的信息填写,但从来没有写过它放回你的Manifold
结构。
此外,我建议你坚持标准的结构标签格式,可以通过(reflect.StructTag).Get(key string)
解析和使用更容易。并且不要在不需要它们的地方使用字符串,例如rIsOpen
听起来像一个布尔值给我。
为什么在设置之前将别名重新分配给新值? – LinearZoetrope 2014-11-21 06:50:58