Java Json 格式转化 —— 将 A.B.C 转成 {"A":{"B":{"C":"XXX"}}}

public class ResultDemo {
    /**
     * 将 A.B.C 变成如下格式：
     * {"A":{"B":{"C":"XXX"}}}
     */
    public static void main(String args[]){
        String module = "A";
        String content = "XXX";
        String result;
        String[] split = module.split("\\.");
        Map<String,Object> resultMap = new HashMap<>();

        for (int i = 0; i < split.length; i++) {
            if (i == split.length-1){
                resultMap.put(split[i],content);
            }else{
                resultMap.put(split[i],new HashMap<>());
            }
        }

        if (split.length > 1) {
            for (int i = split.length-2; i >= 0 ; i--) {
                Map<String,Object> tempMap = (HashMap)resultMap.get(split[i]);
                tempMap.put(split[i+1],resultMap.get(split[i+1]));
            }

            Map<String,Object> newMap = new HashMap<>();
            newMap.put(split[0],resultMap.get(split[0]));
            result = new Gson().toJson(newMap);
        } else {
            result = new Gson().toJson(resultMap);
        }

        System.out.println(result);
    }
}