/**
* 创建结构体递归遍历子字段操作
*
* @param structV 递归操作字段
* @param joinFieldName 字段连接名
* @param arraySizeMap 解析后的集合数量设值map
*/
func parampackNewStructFindFiled(structV reflect.Value, joinFieldName string, arraySizeMap map[string]int) {
structV = reflect.Indirect(structV)
if reflect.Struct != structV.Kind() {
return
}
// 遍历结构字段寻找需要初始化的slice
filedCount := structV.NumField()
for i := 0; i < filedCount; i++ {
childField := structV.Field(i)
childFieldType := childField.Type()
childFieldName := structV.Type().Field(i).Name
if !childField.CanSet() {
continue
}
if 0 != len(joinFieldName) && '.' != joinFieldName[len(joinFieldName)-1] {
joinFieldName += "."
}
if reflect.Ptr == childFieldType.Kind() && childField.IsNil() {
// 初始化子结构指针的操作
childField.Set(reflect.New(childField.Type().Elem()))
}
switch reflect.Indirect(childField).Kind() {
case reflect.Struct:
if !parampackFilterParamPackStructType(childField.Type()) {
parampackNewStructFindFiled(childField, joinFieldName+childFieldName, arraySizeMap)
}
case reflect.Slice:
tempJoinName := joinFieldName + childFieldName
if sliceSize, ok := arraySizeMap[strings.ToLower(tempJoinName)]; ok {
valueElem := reflect.Indirect(childField)
valueElem.Set(reflect.MakeSlice(valueElem.Type(), sliceSize, sliceSize))
// 继续执行集合子元素的遍历
if !parampackFilterParamPackStructType(valueElem.Type()) {
for j := 0; j < sliceSize; j++ {
childIndex := valueElem.Index(j)
if reflect.Ptr == childIndex.Kind() && childIndex.IsNil() {
// 初始化子元素指针的操作
childIndex.Set(reflect.New(childIndex.Type().Elem()))
}
// 当前由于是数组类型，所以传递连接名的时候加上"[index]"下标往下进行操作
tempJoinName = joinFieldName + childFieldName + "[" + strconv.Itoa(j) + "]"
parampackNewStructFindFiled(childIndex, tempJoinName, arraySizeMap)
}
}
}
}
}
}
