没有从JSON对象获取JSON数组的方法

Question

我正在使用simple_Json，我在网上看到了将JSON响应转换为JSON对象数组的示例。

这是我如何尝试获取数组，但不确定为什么我没有获得jason数组的方法。

JSONObject jsonObject =(JSONObject)new JSONParser().parse(response.toString());           

JSONObject s = (JSONObject)jsonObject.get("GetMyRootFoldersForTreeResult");
JSONArray array = /** Not sure how to get array */

这是JSON响应：

{"GetMyRootFoldersForTreeResult":[{"Folder":{"isDirty":false,"isNew":false,"AllTagsData":null,"Archived":false,"ArchivedBy":null,"ArchivedDate":"\/Date(-6847824600000+0530)\/","CreatedBy":"SYSTEM","CreatedOnDate":"\/Date(1321523609427+0530)\/","EntityDescription":null,"EntityName":"System","ModifiedBy":"SYSTEM","ModifiedDate":"\/Date(1321523609427+0530)\/","State":null,"AdministratorViewOnly":false,"EntityFolderID":null,"Hidden":false,"HistoryFolderID":null,"CanBeRoot":true,"DefaultPageName":null,"FolderBehaviorType":"DecisionsFramework.ServiceLayer.Utilities.SystemFolder","FolderID":"SYSTEM FOLDER","FolderTypeName":"Folder","FullPath":"System","HasSubFolders":true,"IsSecurityFolder":true,"IsSystemFolder":true,"NestingLevel":1,"SecurityFolderId":"SYSTEM FOLDER","ShowInTree":true,"SubMenuBehavior":0,"SubMenuGroupName":null},"HasSubFolders":true},{"Folder":{"isDirty":false,"isNew":false,"AllTagsData":null,"Archived":false,"ArchivedBy":null,"ArchivedDate":"\/Date(-6847824600000+0530)\/","CreatedBy":"SYSTEM","CreatedOnDate":"\/Date(1321523675797+0530)\/","EntityDescription":null,"EntityName":"CMDB","ModifiedBy":"SYSTEM","ModifiedDate":"\/Date(1321523675797+0530)\/","State":null,"AdministratorViewOnly":false,"EntityFolderID":null,"Hidden":false,"HistoryFolderID":null,"CanBeRoot":true,"DefaultPageName":null,"FolderBehaviorType":"Decisions.TaskTracking.Service.Asset.AssetFolderBehavior","FolderID":"Asset_BASE_FOLDER_ID","FolderTypeName":"Asset Folder","FullPath":"CMDB","HasSubFolders":false,"IsSecurityFolder":true,"IsSystemFolder":false,"NestingLevel":1,"SecurityFolderId":"Asset_BASE_FOLDER_ID","ShowInTree":true,"SubMenuBehavior":0,"SubMenuGroupName":null},"HasSubFolders":false},{"

我想获取文件夹数组。

Answer 1

JSONObject jsonObject =(JSONObject)new JSONParser().parse(response.toString());           
         JSONArray array = jsonObject.getJSONArray("GetMyRootFoldersForTreeResult");

试试这个。

Answer 2

simple-json没有这些方法。请改用java-json.jar。