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import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import net.sf.json.JSONObject;
public class A {
public static void main(String[] args) {
List<String> list1 = new ArrayList<>();
list1.add("A");
list1.add("B");
list1.add("C");
list1.add("D");
list1.add("E");
List<String> list2 = new ArrayList<>();
list2.add("1");
list2.add("2");
list2.add("3");
list2.add("4");
list2.add("5");
Map<String, List<String>> map = new HashMap<>();
map.put("word", list1);
map.put("number", list2);
JSONObject jsonObject = JSONObject.fromObject(map);
System.out.println(jsonObject.toString());
}
}
打印:
{"number":["1","2","3","4","5"],"word":["A","B","C","D","E"]}