JSON循环遍历解析

使用递归方式遍历JSON,解析JSON用的是:net.sf.json, alibaba.fastjson测试可用

 @Test
    public void test() {
        String json = "{}";
        test2((Map) JSONObject.fromObject(json));
    }

    private void test1(Map.Entry<String, Object> entry) {
        if (entry.getValue() instanceof JSONArray) {
            System.out.println("key=" + entry.getKey());
            List<Map<String, Object>> list = (List<Map<String, Object>>) entry.getValue();
            for (Map<String, Object> map : list) {
                test2(map);
            }
        } else if (entry.getValue() instanceof JSONObject) {
            System.out.println("key=" + entry.getKey());
            Map jsonMap = (Map) JSONObject.fromObject(entry.getValue());
            test2(jsonMap);
        } else {
            System.out.println("key= " + entry.getKey() + " and value= " + entry.getValue());
        }
    }

    private void test2(Map map) {
        Iterator<Map.Entry<String, Object>> it = map.entrySet().iterator();
        while (it.hasNext()) {
            Map.Entry<String, Object> en = it.next();
            test1(en);
        }
    }