go结构体转换

//使用反射，转换结构体
func SourceToTarget(sourceStruct interface{}, targetStruct interface{}) {
source := structToMap(sourceStruct)
targetV := reflect.ValueOf(targetStruct).Elem()
targetT := reflect.TypeOf(targetStruct).Elem()
for i := 0; i < targetV.NumField(); i++ {
fieldName := targetT.Field(i).Name
sourceVal := source[fieldName]
if !sourceVal.IsValid() {
continue
}
targetVal := targetV.Field(i)
targetVal.Set(sourceVal)
}
}

func structToMap(structName interface{}) map[string]reflect.Value {
t := reflect.TypeOf(structName).Elem()
v := reflect.ValueOf(structName).Elem()
fieldNum := t.NumField()
resMap := make(map[string]reflect.Value, fieldNum)
for i := 0; i < fieldNum; i++ {
resMap[t.Field(i).Name] = v.Field(i)
}
return resMap
}