convert array to map using spring mvc with jpa

Question

From my service I am generating the JSON based on the language.I need to covert the array to the map which contains one value as key and another as value (lot of value in the arrays based on the database).

I have written the code I am getting the array and only "I need to convert into the list of key value pair like the given sample and write in the text file.

JSON from my service

[
[
    "task",
    "Comments"
],
[
    "CUSTOM_43_01",
    "Email"
],
[
    "CUSTOM_44_02",
    "Mobile"
],..........
]

I think it would happen if you returned a Map instead of a LIst. — duffymo, Jan 07 '19 at 17:45
As per the previous comments, A map would get you closer to your result. Also a map literal would separate key/value with a colon instead of an equal. See https://stackoverflow.com/q/443499/744133. — YoYo, Jan 08 '19 at 03:32

score 1 · Accepted Answer · answered Jan 07 '19 at 17:58

1

Try to convert your result from repository to expected result in the service like bellow:

public Map<String,String> getAllLangaugeDataForEn(Integer appId, String language) {
  Map<String,String> result = new HashMap();
  if (language.equalsIgnoreCase("EN")) {
   result  = languageRepository.getEnLanguageList(appId)
            .stream()
            .map(language-> new AbstractMap.SimpleEntry<>(language.getX(),language.getY()))
            .collect(Collectors.toMap(Map.Entry::getKey,Map.Entry::getValue));
   }
     return result;
}

language.getX() and language.getY() are LanguageDTO getters methods(LanguageDTO properties)!

answered Jan 07 '19 at 17:58

Hadi J

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I am getting The method stream() is undefined for the type Map error – Shashank Ranjan Jan 08 '19 at 03:17
I have added my DTO – Shashank Ranjan Jan 08 '19 at 03:27
well, you tagged `java-8` due to this reason I put this answer. what is your java version? – Hadi J Jan 08 '19 at 05:33
java version is java -8 – Shashank Ranjan Jan 08 '19 at 06:13
the`languageRepository.getEnLanguageList(appId)` result is list so `stream()` is defined for it. can you display or say in detail your error? – Hadi J Jan 08 '19 at 06:18

convert array to map using spring mvc with jpa

1 Answers1