String k="[\"1\",\"2\",\"3\"]"; List<String> list1 = new ArrayList<String>(); list1.add(k); list1.add("2"); list1.add("3"); JSONArray array =JSONArray.fromObject(list1); String jsonstr = array.toString(); System.out.println(jsonstr); array =JSONArray.fromObject(jsonstr); List list2 =JSONArray.toList(array); for(int i=0;i<list1.size();i++){ System.out.println(list1.get(i)); } System.out.println(array.size()); -------结果 [["1","2","3"],"2","3"] ["1","2","3"] 2 3 3 |
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