Gson

 

JsonReader와 함게 사용

 

import java.io.FileReader;
import java.io.FileNotFoundException;
import java.util.Map;
import java.util.Set;

import com.google.gson.Gson;
import com.google.gson.JsonElement;
import com.google.gson.JsonObject;
import com.google.gson.stream.JsonReader;

Gson gson = new Gson();try {
	JsonReader rd = new JsonReader(new FileReader(filepath));
	JsonObject obj = gson.fromJson(rd, JsonObject.class);
			
	System.out.println("\"phone\": " + obj.get("phone"));
			
	Set<Map.Entry<String, JsonElement>> element = obj.entrySet();
	for (Map.Entry<String, JsonElement> entry : element) {
		System.out.println("key: " + entry.getKey());
		System.out.println("val: " + entry.getValue() + "\n");
	}
} catch (FileNotFoundException e) {
	System.out.println("file does not exist");
}