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);
         }
     }