Pour some hot water over your cellophane water and let it sit for 10-20 seconds. Fish it out and rinse in cold water (it should still feel undercooked). Set aside
Pour some hot water over the dried woodear mushroom and let it sit for 5-10 mins. Then cut into thin strips. Set aside.
All of the vegetables that you have grated or julienned, you need to squeeze out all its water/moisture with a cheese cloth or paper towel so that it's completely dry. Do this in batches.
In a bowl, combine all the ingredients and mix well.
Get a piece of spring roll wrapper and place a small amount of your pork mixture (~1-2 tbsp) towards one end. Place one corner over the meat then fold in the 2 side corners. Then continue to finish rolling towards the oppposite corner. Seal with a bit of egg yolk. Repeat until you run out of pork mixture.
Deep fry the spring rolls for around 8 minutes or until golden brown.