javascript - 如何在 flutter 中检索访问 token 值

Question

我有这个代码来获取访问 token :

       Future<Null> getData() async {

            var url = "http://192.168.1.23:7070/api/v2/token";
            http.post(url, body:{
              "grant_type": "string",
              "branchcode": "string",
              "password": "string",
              "username": "string",
              "dbname": "string",
              "dbuser": "string",
              "dbpassword": "string",
              "dbtype": "string"
            }).then((response){
              print("Response Status: ${response.statusCode}");
              print("Response Body: ${response.body}");
            });
        }

运行此代码块后，它会返回如下内容:

Response Body: {"access_token":"AQAAANCMnd8BFdERjHoAwE_Cl-sBAAAAgUTYyajkrEKWAWNrBvgpHQAAAAACAAAAAAAQZgAAAAEAACAAAAB-c92RaHBUfb0aNvnWFqx3JW29bBeQPIouZVDHsTsg8QAAAAAOgAAAAAIAACAAAAC7JdwAlRh8ckP3gAG4vc6H-nULfmjfpBF-gleCcFXeFzABAACJft4ZnsMt1clpRHUTAbiWQIqo5Zmt7_Qc7-pDPwA33O7z3VgFhkx2ITLn5xWGKcVHTkxOxPeRe4qrgEDbsd8V6DHcuwirPkAZye5zECUllxE6IDkNetLkTQsLuK2CpSWxAksFzUS6vhiU7fqkNKsXegtOV--0wFzWsq-ikTjYWnr4LsdAiSUfy_HsTMvLxoIjIqDSxw0QyMM1I2eVIE2wSsZSpoYn3CQIGejQAlG_mUIgzt3PBqEZ6kqIX-Qhx4jpcypUOG5GFNMKLUJa5mti1UiTi8ETpVN_8y_tDhVi-9AS2MJpJN7-Gao_fIB5s0yaH_m9fHkwFgXF1N-Y5GevDypdNryQWbHXQkf88DKZnljMSGzJkJhpzls3PTN8iwss32CXbeO1zaWm-iJAgMK_QAAAACVQGecH57e1QB-FRu2iCt-d6x37x6MJ-_H_H8uYOKbZYBX0lA1b8WxteCLWPM5mAJR1p3tHE_VBqQqvS4pKGHM","token_type":"bearer","expires_in":1199,"refresh_token":"f8de12c7a90b401b9400b93b4cf2c128"

我的问题是，如何在此代码块中检索“access_token”的值？

Answer 1

您可以通过以下方式访问响应

1.如果它来自响应 header ，您可以使用

response.headers['access-token']

2.如果它来自响应主体，您可以使用

访问它

  print('access token is -> ${json.decode(response.body)['access_token']}');

3.如果你正在获取对象，你可以解析它并使用它转换为所需的类型

final Map<String, dynamic> data = json.decode(response.body)['user'].cast<String, dynamic>();