Golang动态调用方法
main.go
package main
import (
"lenu/call"
"reflect"
)
type FuncCollection map[string]reflect.Value
func main() {
_, _ = CallFunc("Hello", "执行Hello方法")
_, _ = CallFunc("World", "执行World方法")
}
func CallFunc(tableName string, args ... interface{}) (result []reflect.Value, err error) {
var router call.Routers
FuncMap := make(FuncCollection, 0)
rf := reflect.ValueOf(&router)
rft := rf.Type()
funcNum := rf.NumMethod()
for i := 0; i < funcNum; i ++ {
mName := rft.Method(i).Name
FuncMap[mName] = rf.Method(i)
}
parameter := make([]reflect.Value, len(args))
for k, arg := range args {
parameter[k] = reflect.ValueOf(arg)
}
result = FuncMap[tableName].Call(parameter)
return
}
package call:
router.go:
package call
type Routers struct {
}
hello.go
package call
import "log"
func (router *Routers) Hello(args ...interface{}) bool {
log.Println(args[0])
return true
}
world.go
package call
import "log"
func (router *Routers) World(args ...interface{}) bool {
log.Println(args[0])
return true
}
go run main.go会通过反射去调用Hello,World方法
