android - 从下一个 Activity 的 Json 响应中提取 json 字符串，即身份验证 token 。

Question

*在 postExecute() 上

@Override
        protected void onPostExecute(String s) {
            if (s != null) {
                s.replaceAll("\\s+","");
                Log.e("Fetch_frame_response", s);
                userToken = s.substring(24,451);
                Log.e("userToken", userToken);
                Intent abc = new Intent(MainActivity.this, Orderlist.class);
                startActivity(abc);
                finish();
            } else {
                Intent abc = new Intent(MainActivity.this, MainActivity.class);
                startActivity(abc);
                Toast.makeText(MainActivity.this, "Invalid credentials", Toast.LENGTH_LONG).show();
            }
        }
    }
}

*logcat 响应没有获取我想要存储为变量 userToken 的值

07-29 10:30:57.556 7341-7341/com.example.rinzinchoephel.driverdemo2 E/userToken: 2791d970-c11d-48f6-92f3-8ec4f0b14820","contactEmail":"rchomphel@gmail.com","contactPhones":"+19731488021","createdAt":"2016-07-04T01:42:11.452-05:00","description":"","email":"rchomphel@gmail.com","id":"577a051469702d0380170000","internalId":"rinzin","lastAccessedOn":"2016-07-04T01:42:11.452-05:00","name":"rinzin choephel","phone":"+19731488021","updatedAt":"2016-07-04T01:42:11.452-05:00","userType":"merchant","username":"r

Answer 1

试试这个:

   @Override
        protected void onPostExecute(String s) {
            if (s != null) {
                Log.e("Fetch_frame_response", s);
                try {
                    JSONObject object=new JSONObject(s);
                    String userToken=object.getString("authenticationToken");
                    Log.e("userToken",userToken);
                } catch (JSONException e) {
                    e.printStackTrace();
                }  
                Intent abc = new Intent(MainActivity.this, Orderlist.class);
                startActivity(abc);
                finish();
            } else {
                Intent abc = new Intent(MainActivity.this, MainActivity.class);
                startActivity(abc);
                Toast.makeText(MainActivity.this, "Invalid credentials", Toast.LENGTH_LONG).show();
            }
        }
    }
}