第一種方式解析伺服器端傳過來的Json陣列

private List<CarInformation> jsonAnalytic(String result) {
    List<CarInformation> list=new ArrayList<>();
    if (result == null){
        Toast.makeText(getApplicationContext(), "您還未新增車輛資訊，請新增後再來", Toast.LENGTH_SHORT).show();
}else {
        try{
            JSONObject jsonObject = new 
 
JSONObject(result);
JSONArray children = jsonObject.getJSONArray("carInformations");
            for (int j = 0; j < children.length(); j++) {
                jsonObject = children.getJSONObject(j);
CarInformation carInformation = new CarInformation();
carInformation.setCarInformationSerial(jsonObject.getString("carInformationSerial"
 
));
carInformation.setCarInformationBrand(jsonObject.getString("carInformationBrand"));
carInformation.setCarInformationMake(jsonObject.getString("carInformationMake"));
carInformation.setCarInformationModel(jsonObject.getString("carInformationModel"));
list.add(carInformation);
Log.d("WL", carInformation.getCarInformationBrand());
 
}
        } catch (JSONException e) {
            e.printStackTrace();
}
    }
    return null;
}

第二種方式，解析伺服器傳過來的Json物件，並且對物件進行判斷取值

private void jsonAnalytic(String result) {
    try {
        JSONObject jsonObject = new JSONObject(result);
String Status = jsonObject.getString("Status");
        if(Status.equals("ok")){
            String jsonObject2 = jsonObject.getString("user");
            if (jsonObject2.equals("false")) {
                Toast.makeText(this, "賬號或者密碼錯誤", Toast.LENGTH_SHORT).show();
}else {
                jsonObject = jsonObject.getJSONObject("user");
Oneself user = new Oneself();
user.setOneselfIdCard(jsonObject.getString("oneselIdCard"));
user.setOneselfIdName(jsonObject.getString("oneselIdName"));
user.setOneselfPhone(jsonObject.getString("oneselfPhone"));
user.setOneselfSerial(jsonObject.getString("oneselfSerial"));
user.setOneselfName(jsonObject.getString("oneselfName"));
//快取使用者ID
SharedPreferences sp = getSharedPreferences("sp_demo", Context.MODE_PRIVATE);
SharedPreferences.Editor editor = sp.edit();
editor.putString("name",user.getOneselfSerial());
editor.commit();
Intent intent = new Intent(LoginActivity.this, MainActivity.class);
startActivity(intent);
}
        }else if (Status.equals("error")){
            Toast.makeText(this, "賬號或者密碼錯誤", Toast.LENGTH_SHORT).show();
}
        dismiss();
} catch (JSONException e) {
        e.printStackTrace();
}
}