用 map 键值过滤 Object 列表，替换 Map 值

Question

I have a List of Objects

List<Person> personLst = [{"person:" {personName:AASH_01 , country :AUS, state :ADL, zip :null }, 
                {personName:AASH_01 , country :AUS, state :MLB, zip :null}}] 

and Map holds a key value and based on this need to apply the filter for the list.

Map<String, String> lstMap = new HashMap<>();
lstMap.put("ADL","12345")

Apply Filter Condition: If the personLst.contains(ADL) this is a map key filter it and replace the zip with map value (12345) .

Tried different stackoverflow question, did not help much on.

Answer 1

Just to be sure,

List<Person> personLst = [{"person:" {personName:AASH_01 , country :AUS, state :ADL, zip :null },{personName:AASH_01 , country :AUS, state :MLB, zip :null}}]

really refers to a list of valid java objects, right? Because in the current state those would be valid JavaScript Objects, but not valid Java objects.

Also, should a List<Person> really be called with personLst.contains(String) ?

So, assuming these are valid Java objects with the correct getters and setters, and the correct method is intended, you should be able to use

personLst.forEach(p -> {
if(lstMap.containsKey(p.getState()))
p.setZip(lstMap.get(p.getState()));
});