JsonObject类型的方法add(String，JsonElement)不适用于参数(String，String) [英] The method add(String, JsonElement) in the type JsonObject is not applicable for the arguments (String, String)

问题描述

我正在尝试使用json.org libraray将string转换为JsonObject，但出现此错误:

I am trying to convert a string to JsonObject with the json.org libraray but I am getting this error:

类型为JsonObject的方法add(String，JsonElement)不适用于参数(String，String)

The method add(String, JsonElement) in the type JsonObject is not applicable for the arguments (String, String)

代码:

String macAddress = wInfo.getMacAddress();  
JsonObject jsonObject = new JsonObject();
jsonObject.add("mac", macAddress);

结果应如下所示: {"mac":"10:A5:D0:06:C6:E9"}

Result should look such as the following: {"mac": "10:A5:D0:06:C6:E9"}

推荐答案

要获得所需的结果{"mac": "10:A5:D0:06:C6:E9"}，请使用put而不是add

to get the required result {"mac": "10:A5:D0:06:C6:E9"}, use put instead of add

JSONObject jsonObject = new JSONObject();
jsonObject.put("mac", macAddress);

代替

jsonObject.add("mac", macAddress);

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