Java遍历Json数据

今天需要遍历一下json，但是只查到了遍历一层json的文章，满足不了多层级的json遍历。所以自己写一下，用fastJson处理。

 public class JsonLoop {      public static String json = "{\"TITLE\":\"Json Title\",\"FORM\":{\"USERNAME\":\"Rick and Morty\"},\"ARRAY\":[{\"FIRST\":\"Rick\"},{\"LAST\":\"Morty\"}]}";      public static void jsonLoop(Object object) {          if(object instanceof JSONObject) {             JSONObject jsonObject = (JSONObject) object;             for (Map.Entry<String, Object> entry: jsonObject.entrySet()) {                 Object o = entry.getValue();                 if(o instanceof String) {                     System.out.println("key:" + entry.getKey() + "，value:" + entry.getValue());                 } else {                     jsonLoop(o);                 }             }         }         if(object instanceof JSONArray) {             JSONArray jsonArray = (JSONArray) object;             for(int i = 0; i < jsonArray.size(); i ++) {                 jsonLoop(jsonArray.get(i));             }         }     }      public static void main(String[] args) {          JSONObject jsonObject = JSON.parseObject(json);         jsonLoop(jsonObject);     } }

{












}

key:FIRST，value:Rick
key:LAST，value:Morty
key:USERNAME，value:Rick and Morty
key:TITLE，value:Json Title

文章来源: https://blog.csdn.net/z1770223284/article/details/90300816