Java 多层嵌套JSON类型数据解析String list

获取json的二级json

{ "code": "200", "data": { "token": "123456" }, "message": "success" } public static JSONObject getJson() { JSONObject result = new JSONObject(); JSONObject jsonObject = new JSONObject(); jsonObject.put("token", "123456"); result.put("data", jsonObject); result.put("code", "200"); result.put("message", "success"); return result; } public static void main(String[] args) { JSONObject result = getJson(); System.out.println(result); JSONObject recordMap = result.getJSONObject("data"); String token = recordMap.getString("token"); System.out.println(token); }

data里面为数组类型：

{ "code": "200", "data": [ { "address": "东方大道01号", "clientId": "487009", "clientName": "张三" }, { "address": "东方大道02号", "clientId": "487010", "clientName": "张三" }, { "address": "东方大道03号", "clientId": "487011", "clientName": "张三" }, { "address": "东方大道04号", "clientId": "487012", "clientName": "张三" } ], "message": "success" } public static JSONObject getUserInfo() { JSONObject result = new JSONObject(); String object ="[{\"address\":\"东方大道01号\",\"clientId\":487009,\"clientName\":\"张三\"},{\"address\":\"东方大道02号\",\"clientId\":487010,\"clientName\":\"张三\"},{\"address\":\"东方大道03号\",\"clientId\":487011,\"clientName\":\"张三\"},{\"address\":\"东方大道04号\",\"clientId\":487012,\"clientName\":\"张三\"}]"; result.put("data", object); result.put("code", "200"); result.put("message", "success"); return result; } public static void main(String[] args) { JSONObject result = getUserInfo(); System.out.println(result); //注意：results中的内容带有中括号[]，所以要转化为JSONArray类型的对象 String data = result.getString("data"); System.out.println(data); List<User> object = (List<User>) JSONArray.parseArray(data, User.class); System.out.println(object); }