在MySQL中，我在名为DESIGN_CODE的列中调用以下数字：1000,1001,1002 ......等等。这些数字是旋转的，我试图通过这种方式从微调器中获取数字。
Spinner spinner = (Spinner)findViewById(R.id.spinner);
String text = spinner.getSelectedItem().toString();
我想要文字＆＃39; 1000＆＃39;结果，但它显示像这样
{DESIGN_CODE=1000}
问题是什么？如何才能获得结果＆＃39; 1000＆＃39;？
这是完整的代码。
public class InputProductionInfoActivity extends Activity {
TextView dateInputButton, timeInputButton;
Spinner spinner;
EditText productAmountEditText;
ArrayList<HashMap<String, String>> mArrayList;
String mJsonString;
String productDate, productTime;
private static String TAG = "ㅡㅡㅡㅡㅡㅡㅡㅡㅡㅡㅡㅡㅡㅡㅡㅡㅡㅡㅡㅡ";
private static final String TAG_JSON = "design";
private static final String TAG_DESIGN_CODE = "DESIGN_CODE";
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_input_production_info);
spinner = findViewById(R.id.designSpinner);
dateInputButton = findViewById(R.id.dateInputButton);
timeInputButton = findViewById(R.id.timeInputButton);
mArrayList = new ArrayList<>();
InputProductionInfoActivity.GetData task = new InputProductionInfoActivity.GetData();
task.execute("http://www.cafe24.com/select_design.php");
final Calendar c = Calendar.getInstance();
int mYear = c.get(Calendar.YEAR);
int mMonth = c.get(Calendar.MONTH);
int mDay = c.get(Calendar.DAY_OF_MONTH);
final DatePickerDialog datePickerDialog = new DatePickerDialog(this,
new DatePickerDialog.OnDateSetListener() {
@SuppressLint("SetTextI18n")
@Override
public void onDateSet(DatePicker view, int year, int monthOfYear, int dayOfMonth) {
dateInputButton.setText(year + "년 " + (monthOfYear + 1) + "월 " + dayOfMonth + "일");
productDate = year + "-" + monthOfYear + "-" + dayOfMonth;
}
}, mYear, mMonth, mDay);
dateInputButton.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
datePickerDialog.show();
}
});
final int mHour = c.get(Calendar.HOUR_OF_DAY);
final int mMin = c.get(Calendar.MINUTE);
final TimePickerDialog timePickerDialog = new TimePickerDialog(this,
new TimePickerDialog.OnTimeSetListener() {
@SuppressLint("SetTextI18n")
@Override
public void onTimeSet(TimePicker view, int hourOfDay, int minute) {
timeInputButton.setText(hourOfDay + "시 " + minute + "분");
productTime = hourOfDay + ":" + minute +":00";
}
}, mHour, mMin, true);
timeInputButton.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
timePickerDialog.show();
}
});
Button enterProductInformation = findViewById(R.id.enterProductInformation);
enterProductInformation.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
String spinnerItem = spinner.getSelectedItem().toString();
String productAmount = productAmountEditText.getText().toString();
final RadioGroup dayOrNightRadioGroup = findViewById(R.id.dayOrNightRadioGroup);
int checkedId = dayOrNightRadioGroup.getCheckedRadioButtonId();
RadioButton typeButton = findViewById(checkedId);
String dayOrNight = typeButton.getText().toString();
try {
InsertData task = new InsertData();
task.execute(productDate, productTime, dayOrNight, spinnerItem, productAmount);
} catch (Exception e){
Log.d(TAG, "error : ", e);
}
}
});
}
@SuppressLint("StaticFieldLeak")
private class GetData extends AsyncTask<String, Void, String> {
ProgressDialog progressDialog;
String errorString = null;
@Override
protected void onPreExecute() {
super.onPreExecute();
progressDialog = ProgressDialog.show(InputProductionInfoActivity.this,
"Please Wait", null, true, true);
}
@Override
protected void onPostExecute(String result) {
super.onPostExecute(result);
progressDialog.dismiss();
Log.d(TAG, "response - " + result);
if (result == null) {
} else {
mJsonString = result;
showResult();
}
}
@Override
protected String doInBackground(String... params) {
String serverURL = params[0];
try {
URL url = new URL(serverURL);
HttpURLConnection httpURLConnection = (HttpURLConnection) url.openConnection();
httpURLConnection.setReadTimeout(5000);
httpURLConnection.setConnectTimeout(5000);
httpURLConnection.connect();
int responseStatusCode = httpURLConnection.getResponseCode();
Log.d(TAG, "response code - " + responseStatusCode);
InputStream inputStream;
if (responseStatusCode == HttpURLConnection.HTTP_OK) {
inputStream = httpURLConnection.getInputStream();
} else {
inputStream = httpURLConnection.getErrorStream();
}
InputStreamReader inputStreamReader = new InputStreamReader(inputStream, "UTF-8");
BufferedReader bufferedReader = new BufferedReader(inputStreamReader);
StringBuilder sb = new StringBuilder();
String line;
while ((line = bufferedReader.readLine()) != null) {
sb.append(line);
}
bufferedReader.close();
return sb.toString().trim();
} catch (Exception e) {
Log.d(TAG, "InsertData: Error ", e);
errorString = e.toString();
return null;
}
}
}
private void showResult() {
try {
JSONObject jsonObject = new JSONObject(mJsonString);
JSONArray jsonArray = jsonObject.getJSONArray(TAG_JSON);
for (int i = 0; i < jsonArray.length(); i++) {
JSONObject item = jsonArray.getJSONObject(i);
String designCode = item.getString(TAG_DESIGN_CODE);
HashMap<String, String> hashMap = new HashMap<>();
hashMap.put(TAG_DESIGN_CODE, designCode);
mArrayList.add(hashMap);
}
SimpleAdapter adapter = new SimpleAdapter(
InputProductionInfoActivity.this, mArrayList, R.layout.input_info_spinner,
new String[]{TAG_DESIGN_CODE},
new int[]{R.id.spinner_item}
);
spinner.setAdapter(adapter);
} catch (JSONException e) {
Log.d(TAG, "showResult : ", e);
}
}
@SuppressLint("StaticFieldLeak")
class InsertData extends AsyncTask<String, Void, String> {
ProgressDialog progressDialog;
@Override
protected void onPreExecute() {
super.onPreExecute();
progressDialog = ProgressDialog.show(InputProductionInfoActivity.this,
"Please Wait", null, true, true);
}
@Override
protected void onPostExecute(String result) {
super.onPostExecute(result);
progressDialog.dismiss();
//mTextViewResult.setText(result);
Log.d(TAG, "POST response - " + result);
}
@Override
protected String doInBackground(String... params) {
String productDate = params[0];
String productTime = params[1];
String dayOrNight = params[2];
String spinnerItem = params[3];
String productAmount = params[4];
String serverURL = "http://www.cafe24.com/insert_product.php";
String postParameters = "PRODUCT_DATE=" + productDate
+ "&PRODUCT_TIME=" + productTime
+ "&DAY_NIGHT=" + dayOrNight
+ "&DESIGN_CODE=" + spinnerItem
+ "&PRODUCT_OUTPUT=" + productAmount;
try {
URL url = new URL(serverURL);
HttpURLConnection httpURLConnection = (HttpURLConnection) url.openConnection();
httpURLConnection.setReadTimeout(5000);
httpURLConnection.setConnectTimeout(5000);
httpURLConnection.setRequestMethod("POST");
httpURLConnection.connect();
OutputStream outputStream = httpURLConnection.getOutputStream();
outputStream.write(postParameters.getBytes("UTF-8"));
outputStream.flush();
outputStream.close();
int responseStatusCode = httpURLConnection.getResponseCode();
Log.d(TAG, "POST response code - " + responseStatusCode);
InputStream inputStream;
if (responseStatusCode == HttpURLConnection.HTTP_OK) {
inputStream = httpURLConnection.getInputStream();
} else {
inputStream = httpURLConnection.getErrorStream();
}
InputStreamReader inputStreamReader = new InputStreamReader(inputStream, "UTF-8");
BufferedReader bufferedReader = new BufferedReader(inputStreamReader);
StringBuilder sb = new StringBuilder();
String line = null;
while ((line = bufferedReader.readLine()) != null) {
sb.append(line);
}
bufferedReader.close();
return sb.toString();
} catch (Exception e) {
Log.d(TAG, "InsertData: Error ", e);
return "Error: " + e.getMessage();
}
}
}
}
答案 0 :(得分：0)
如果要在微调器中显示的是值1000,1001,1002，....那么将代码更改为：
private void showResult() {
try {
ArrayList<String> arrayList = new ArrayList<>();
JSONObject jsonObject = new JSONObject(mJsonString);
JSONArray jsonArray = jsonObject.getJSONArray(TAG_JSON);
for (int i = 0; i < jsonArray.length(); i++) {
JSONObject item = jsonArray.getJSONObject(i);
String designCode = item.optString(TAG_DESIGN_CODE, "No Value");
arrayList.add(designCode);
}
ArrayAdapter<String> adapter = new ArrayAdapter<String>(
InputProductionInfoActivity.this,
android.R.layout.simple_spinner_dropdown_item,
arrayList);
if(spinner != null) {
spinner.setAdapter(adapter);
}
} catch (JSONException e) {
Log.d(TAG, "showResult : ", e);
}
}
选择项目后，您只能获得价值＆＃34; 1000＆＃34;或＆＃34; 1002＆＃34;无论选择什么。