类型为java.lang.String的Android值…无法转换为JSONArray

在您的json中，的值

GetNotesResult

""

被解析为一个数组。

{"GetNotesResult":[{"ID":1,"Title":"Note 1","Content":"Hello Vu Chien Thang","CreatedBy":"thangvc"},{"ID":2,"Title":"Note 2","Content":"Hello Nguyen Thi Ngoc","CreatedBy":"thangvc"}]}

因此，解决方案是两件事之一：

1. 如果可以修改服务器响应，请

   ""

   从json数组周围删除。要么
2. parse it first as string and then create a json array from that string..

        String notes = jobj.getString("GetNotesResult");    jarray = new JSonArray(notes);