static String str="{\r\n" +
" \"msg\": \"排号成功\",\r\n" +
" \"code\": \"0\",\r\n" +
" \"data\": \r\n" +
" {\r\n" +
" \"doctorNo\": \"798\",\r\n" +
" \"patient\": \"陈*生\",\r\n" +
" \"doctorPhotoPath\": \"https://ss0.bdstatic.com/70cFvHSh_Q1YnxGkpoWK1HF6hhy/it/u=3347806870,81394400&fm=26&gp=0.jpg\",\r\n" +
" \"consultationRoom\": \"209室\",\r\n" +
" \"departmentName\": \"内伤一部\",\r\n" +
" \"departmentNo\": \"4324324\",\r\n" +
" \"doctorName\": \"黄裳\",\r\n" +
" \"rowNumber\": \"1\",\r\n" +
" \"rowNumberType\": \"1\",\r\n" +
" \"subjectName\": \"内伤一科\",\r\n" +
" \"subjectNo\": \"43242\",\r\n" +
" \"date\": \"2020-02-19-AM\",\r\n" +
" \"orderNo\": \"980698580095736422542\"\r\n" +
" }\r\n" +
"}";
/***********************************字符串转JSON***********************************/
org.json.JSONObject json= new JSONObject(str);
/***********************************JSON转字符串***********************************/
//整体转字符串
String jsonString=jsonObject.toString();
//单个属性转字符串
String msg = (String) json.get("msg");
String data = json.get("data").toString();
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JSON转List、Map