Java 尝试调用接口方法'；int org.ksoap2.serialization.KvmSerializable.getPropertyCount（）'；关于空对象引用
我有一个学校项目。它是由以前的某个开发人员构建的。我正在试着运行它。但是我得到了NullPointerException。这是我的密码：Java 尝试调用接口方法'；int org.ksoap2.serialization.KvmSerializable.getPropertyCount（）'；关于空对象引用,java,android,nullpointerexception,ksoap2,android-ksoap2,Java,Android,Nullpointerexception,Ksoap2,Android Ksoap2,我有一个学校项目。它是由以前的某个开发人员构建的。我正在试着运行它。但是我得到了NullPointerException。这是我的密码： private boolean isNetworkAvailable() { ConnectivityManager connectivityManager=(ConnectivityManager) getSystemService(Context.CONNECTIVITY_SERVICE); NetworkInfo activeNetwor
private boolean isNetworkAvailable()
{
ConnectivityManager connectivityManager=(ConnectivityManager) getSystemService(Context.CONNECTIVITY_SERVICE);
NetworkInfo activeNetworkInfo=connectivityManager.getActiveNetworkInfo();
return activeNetworkInfo !=null && activeNetworkInfo.isConnected();
}
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_registration);
setToolbar();
new AsyncTask<Void,Void,Void>(){
@Override
protected void onPreExecute() {
super.onPreExecute();
dialog=new ProgressDialog(RegistrationActivity.this);
dialog.setMessage("Loading...");
dialog.show();
}
@Override
protected Void doInBackground(Void... params) {
SoapObject request = new SoapObject(WSDL_TARGET_NAMESPACE1,OPERATION_NAME1);
SoapSerializationEnvelope envelope = new SoapSerializationEnvelope(SoapEnvelope.VER11);
envelope.dotNet = true;
envelope.setOutputSoapObject(request);
HttpTransportSE httpTransport = new HttpTransportSE(SOAP_ADDRESS1);
httpTransport.debug=true;
try {
httpTransport.call(SOAP_ACTION1, envelope);
} catch (IOException e) {
e.printStackTrace();
} catch (XmlPullParserException e) {
e.printStackTrace();
}
try {
response= envelope.getResponse();
Log.e("response: ", response.toString() + "");
} catch (SoapFault soapFault) {
soapFault.printStackTrace();
Log.e("response: ", response.toString() + "");
}
return null;
}
@Override
protected void onPostExecute(Void aVoid) {
super.onPostExecute(aVoid);
dialog.dismiss();
try {
Log.e("response: ", response.toString() + "");
}catch(Exception e){
e.printStackTrace();
Toast.makeText(RegistrationActivity.this,response.toString()+"",Toast.LENGTH_LONG).show();
}
StringTokenizer tokens = new StringTokenizer(response.toString(), "=");
List<String> mylist=new ArrayList<String>();
for(int i=0;tokens.hasMoreTokens();i++){
StringTokenizer tokens1 = new StringTokenizer(tokens.nextToken(), ";");
mylist.add(tokens1.nextToken());
}
mylist.remove(0);
int partitionSize =1;
List<List<String>> partitions = new LinkedList<List<String>>();
for (int i = 0; i < mylist.size(); i += partitionSize) {
partitions.add(mylist.subList(i,
i + Math.min(partitionSize, mylist.size() - i)));
}
city=new ArrayList<String>();
for(int k=0;k<partitions.size();k++){
city.add(partitions.get(k).get(0));
}
callGetArea();
}
}.execute();
spcity= (Spinner) findViewById(R.id.spcity);
spcity.setOnItemSelectedListener(this);
sparea = (Spinner) findViewById(R.id.sparea);
sparea.setOnItemSelectedListener(this);
dateFormatter = new SimpleDateFormat("dd-MM-yyyy", Locale.US);
rg = (RadioGroup) findViewById(R.id.gendergroup);
name= (EditText) findViewById(R.id.fname);
address=(EditText)findViewById(R.id.address);
contact= (EditText) findViewById(R.id.contact);
email= (EditText) findViewById(R.id.email);
weight= (EditText) findViewById(R.id.weight);
password= (EditText) findViewById(R.id.password);
cpass= (EditText) findViewById(R.id.cpassword);
earea= (Spinner) findViewById(R.id.sparea);
ecity= (Spinner) findViewById(R.id.spcity);
btnContinue= (TextView)findViewById(R.id.btncont);
bdate = (EditText) findViewById(R.id.bdate);
bdate.setInputType(InputType.TYPE_NULL);
bdate.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
setDateTimeField();
fromDatePickerDialog.show();
}
});
btnContinue.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
if (isEmptyField(name)) {
Toast.makeText(RegistrationActivity.this, "Please Enter Name", Toast.LENGTH_LONG).show();
} else if (isEmptyField(bdate)) {
Toast.makeText(RegistrationActivity.this, "Please Select Birthdate", Toast.LENGTH_LONG).show();
} else if (isEmptyField(address)) {
Toast.makeText(RegistrationActivity.this, "Please Enter Address", Toast.LENGTH_LONG).show();
} else if (isEmptyField(weight)) {
Toast.makeText(RegistrationActivity.this, "Please Enter Weight", Toast.LENGTH_LONG).show();
} else if (isEmptyField(contact)) {
Toast.makeText(RegistrationActivity.this, "Please Enter Contact", Toast.LENGTH_LONG).show();
} else if (isEmptyField(email)) {
Toast.makeText(RegistrationActivity.this, "Please Enter E-Mail", Toast.LENGTH_LONG).show();
}else if (!isEmailPattern(email)) {
Toast.makeText(RegistrationActivity.this, "Please Enter Valid E-Mail", Toast.LENGTH_LONG).show();
}else if (isEmptyField(password)) {
Toast.makeText(RegistrationActivity.this, "Please Enter Password", Toast.LENGTH_LONG).show();
} else if (isEmptyField(cpass)) {
Toast.makeText(RegistrationActivity.this, "Please Confirm Password", Toast.LENGTH_LONG).show();
} else if (!isPasswordMatch(cpass,password)) {
Toast.makeText(RegistrationActivity.this, "Password doesn't match", Toast.LENGTH_LONG).show();
}
else {
if(isNetworkAvailable()) {
new AsyncTask<Void, Void, Void>() {
@Override
protected void onPreExecute() {
super.onPreExecute();
dialog = new ProgressDialog(RegistrationActivity.this);
dialog.setMessage("Loading...");
dialog.show();
}
@Override
protected Void doInBackground(Void... params) {
resp = loginCall(email.getText().toString().trim());
return null;
}
@Override
protected void onPostExecute(Void aVoid) {
super.onPostExecute(aVoid);
Log.e("Response", resp + "");
dialog.dismiss();
if (resp == 1) {
UserClass userClass = new UserClass();
userClass.name = name.getText().toString();
userClass.dob = bdate.getText().toString();
int selectedId = rg.getCheckedRadioButtonId();
RadioButton radioButton = (RadioButton) findViewById(selectedId);
userClass.gender = radioButton.getText().toString();
userClass.address = address.getText().toString();
userClass.city = city.get(ecity.getSelectedItemPosition());
userClass.area = area.get(earea.getSelectedItemPosition()).city;
userClass.weight = weight.getText().toString();
userClass.contact = contact.getText().toString();
userClass.email = email.getText().toString();
userClass.password = password.getText().toString();
Log.e("name", userClass.name + "");
Log.e("dob", userClass.dob + "");
Log.e("gender", userClass.gender + "");
Log.e("address", userClass.address + "");
Log.e("city", userClass.city + "");
Log.e("area", userClass.area + "");
Log.e("weight", userClass.weight + "");
Log.e("contact", userClass.contact + "");
Log.e("email", userClass.email + "");
Log.e("password", userClass.password + "");
PrefUtils.setCurrentUser(userClass, RegistrationActivity.this);
Intent intent = new Intent(RegistrationActivity.this, RegistrationActivity2.class);
startActivity(intent);
finish();
} else {
Toast.makeText(getApplicationContext(), "Email Already Exist", Toast.LENGTH_LONG).show();
}
}
}.execute();
}
else
{
Toast.makeText(RegistrationActivity.this, "Check Your Internet Connection", Toast.LENGTH_LONG).show();
}
}
}
});
}
public void onDateSet(DatePicker view, int year, int month, int day) {
Calendar userAge = new GregorianCalendar(year,month,day);
Calendar minAdultAge = new GregorianCalendar();
minAdultAge.add(Calendar.YEAR, -18);
if (minAdultAge.before(userAge))
{
Toast.makeText(RegistrationActivity.this,"Please enter valid date",Toast.LENGTH_LONG).show();
}
}
private void callGetArea() {
new AsyncTask<Void,Void,Void>(){
@Override
protected void onPreExecute() {
super.onPreExecute();
dialog=new ProgressDialog(RegistrationActivity.this);
dialog.setMessage("Loading...");
dialog.show();
}
@Override
protected Void doInBackground(Void... params) {
SoapObject request = new SoapObject(WSDL_TARGET_NAMESPACE2,OPERATION_NAME2);
SoapSerializationEnvelope envelope = new SoapSerializationEnvelope(SoapEnvelope.VER11);
envelope.dotNet = true;
envelope.setOutputSoapObject(request);
HttpTransportSE httpTransport = new HttpTransportSE(SOAP_ADDRESS2);
httpTransport.debug=true;
try {
httpTransport.call(SOAP_ACTION2, envelope);
} catch (IOException e) {
e.printStackTrace();
} catch (XmlPullParserException e) {
e.printStackTrace();
}
try {
response= envelope.getResponse();
Log.e("response: ", response.toString() + "");
} catch (SoapFault soapFault) {
soapFault.printStackTrace();
Log.e("response: ", response.toString() + "");
}
return null;
}
@Override
protected void onPostExecute(Void aVoid) {
super.onPostExecute(aVoid);
dialog.dismiss();
try {
Log.e("response: ", response.toString() + "");
}catch(Exception e){
e.printStackTrace();
Toast.makeText(RegistrationActivity.this,response.toString()+"",Toast.LENGTH_LONG).show();
}
StringTokenizer tokens = new StringTokenizer(response.toString(), "=");
List<String> mylist=new ArrayList<String>();
for(int i=0;tokens.hasMoreTokens();i++){
StringTokenizer tokens1 = new StringTokenizer(tokens.nextToken(), ";");
mylist.add(tokens1.nextToken());
}
mylist.remove(0);
final int partitionSize =2;
List<List<String>> partitions = new LinkedList<List<String>>();
for (int i = 0; i < mylist.size(); i += partitionSize) {
partitions.add(mylist.subList(i,
i + Math.min(partitionSize, mylist.size() - i)));
}
area=new ArrayList<Area>();
for(int k=0;k<partitions.size();k++){
area.add(new Area(partitions.get(k).get(0),partitions.get(k).get(1)));
}
TimeSpinnerAdapter1 tspcity=new TimeSpinnerAdapter1(RegistrationActivity.this,city);
spcity.setAdapter(tspcity);
spcity.setOnItemSelectedListener(new AdapterView.OnItemSelectedListener() {
@Override
public void onItemSelected(AdapterView<?> parent, View view, int position, long id) {
ArrayList<Area> tempList=new ArrayList<Area>();
for(int i=0;i<area.size();i++){
Log.e("city............",area.get(i).area+"");
if(area.get(i).area.equalsIgnoreCase(city.get(position))){
tempList.add(area.get(i));
}
}
TimeSpinnerAdapter tsparea = new TimeSpinnerAdapter(RegistrationActivity.this, tempList);
sparea.setAdapter(tsparea);
}
@Override
public void onNothingSelected(AdapterView<?> parent) {
}
});
}
}.execute();
}
private void setDateTimeField() {
Calendar newCalendar = Calendar.getInstance();
fromDatePickerDialog = new DatePickerDialog(this, new DatePickerDialog.OnDateSetListener() {
public void onDateSet(DatePicker view, int year, int monthOfYear, int dayOfMonth) {
Calendar userAge = new GregorianCalendar(year,monthOfYear,dayOfMonth);
Calendar minAdultAge = new GregorianCalendar();
minAdultAge.add(Calendar.YEAR, -18);
if (minAdultAge.before(userAge))
{
Toast.makeText(RegistrationActivity.this,"Please Enter Valid Date",Toast.LENGTH_LONG).show();
} else {
bdate.setText(dateFormatter.format(userAge.getTime()));
}
}
},newCalendar.get(Calendar.YEAR), newCalendar.get(Calendar.MONTH), newCalendar.get(Calendar.DAY_OF_MONTH));
}
public boolean isEmptyField(EditText param1) {
boolean isEmpty = false;
if (param1.getText() == null || param1.getText().toString().equalsIgnoreCase("")) {
isEmpty = true;
}
return isEmpty;
}
private void setToolbar() {
toolbar = (Toolbar) findViewById(R.id.toolbar);
if (toolbar != null) {
toolbar.setTitle("Register");
setSupportActionBar(toolbar);
}
}
@Override
public void onBackPressed() {
super.onBackPressed();
finish();
}
@Override
public void onItemSelected(AdapterView<?> parent, View view, int position, long id) {
}
@Override
public void onNothingSelected(AdapterView<?> parent) {
}
public class TimeSpinnerAdapter extends BaseAdapter implements SpinnerAdapter {
private final Context activity;
private ArrayList<Area> asr;
public TimeSpinnerAdapter(Context context,ArrayList<Area> asr) {
this.asr=asr;
activity = context;
}
public int getCount()
{
return asr.size();
}
public Object getItem(int i)
{
return asr.get(i);
}
public long getItemId(int i)
{
return (long)i;
}
@Override
public View getDropDownView(int position, View convertView, ViewGroup parent) {
TextView txt = new TextView(RegistrationActivity.this);
txt.setPadding(16,16,16,16);
txt.setTextSize(16);
txt.setGravity(Gravity.CENTER_VERTICAL);
txt.setText(asr.get(position).city);
txt.setTextColor(Color.parseColor("#494949"));
return txt;
}
public View getView(int i, View view, ViewGroup viewgroup) {
TextView txt = new TextView(RegistrationActivity.this);
txt.setGravity(Gravity.CENTER_VERTICAL);
txt.setPadding(16,16,16,16);
txt.setTextSize(16);
txt.setCompoundDrawablesWithIntrinsicBounds(0, 0, R.drawable.ic_spinner, 0);
txt.setText(asr.get(i).city);
txt.setTextColor(Color.parseColor("#ffffff"));
return txt;
}
}
public static boolean isEmailPattern(EditText param1) {
Pattern pattern = Patterns.EMAIL_ADDRESS;
return pattern.matcher(param1.getText().toString()).matches();
}
public static boolean isPasswordMatch(EditText param1, EditText param2) {
boolean isMatch = false;
if (param1.getText().toString().equals(param2.getText().toString())) {
isMatch = true;
}
return isMatch;
}
public class TimeSpinnerAdapter1 extends BaseAdapter implements SpinnerAdapter {
private final Context activity;
private ArrayList<String> asr;
public TimeSpinnerAdapter1(Context context,ArrayList<String> asr) {
this.asr=asr;
activity = context;
}
public int getCount()
{
return asr.size();
}
public Object getItem(int i)
{
return asr.get(i);
}
public long getItemId(int i)
{
return (long)i;
}
@Override
public View getDropDownView(int position, View convertView, ViewGroup parent) {
TextView txt = new TextView(RegistrationActivity.this);
txt.setPadding(16,16,16,16);
txt.setTextSize(16);
txt.setGravity(Gravity.CENTER_VERTICAL);
txt.setText(asr.get(position));
txt.setTextColor(Color.parseColor("#494949"));
return txt;
}
public View getView(int i, View view, ViewGroup viewgroup) {
TextView txt = new TextView(RegistrationActivity.this);
txt.setGravity(Gravity.CENTER_VERTICAL);
txt.setPadding(16,16,16,16);
txt.setTextSize(16);
txt.setCompoundDrawablesWithIntrinsicBounds(0, 0, R.drawable.ic_spinner, 0);
txt.setText(asr.get(i));
txt.setTextColor(Color.parseColor("#ffffff"));
return txt;
}
}
public int loginCall(String c1)
{
SoapObject request = new SoapObject(WSDL_TARGET_NAMESPACE,OPERATION_NAME);
PropertyInfo p1=new PropertyInfo();
p1.setName("email");
p1.setValue(c1);
p1.setType(String.class);
request.addProperty(p1);
SoapSerializationEnvelope envelope = new SoapSerializationEnvelope(
SoapEnvelope.VER11);
envelope.dotNet = true;
envelope.setOutputSoapObject(request);
HttpTransportSE httpTransport = new HttpTransportSE(SOAP_ADDRESS);
Object response=null;
try
{
httpTransport.debug=true;
httpTransport.call(SOAP_ACTION, envelope);
response = envelope.getResponse();
}
catch (Exception ex)
{
// ex.printStackTrace();
Toast.makeText(getApplicationContext(),"error",Toast.LENGTH_LONG).show();
//displayExceptionMessage(ex.getMessage());
//System.out.println(exception.getMessage());
}
return Integer.parseInt(response.toString());
}
谢谢！：） 确保您的服务和android参数中的属性名称相同，例如WebService
公共类登录（字符串名称）中的request.addProperty（“name”，name）
Process: com.nkdroid.blooddonation, PID: 16820
java.lang.RuntimeException: An error occurred while executing doInBackground()
at android.os.AsyncTask$3.done(AsyncTask.java:309)
at java.util.concurrent.FutureTask.finishCompletion(FutureTask.java:354)
at java.util.concurrent.FutureTask.setException(FutureTask.java:223)
at java.util.concurrent.FutureTask.run(FutureTask.java:242)
at android.os.AsyncTask$SerialExecutor$1.run(AsyncTask.java:234)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1113)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:588)
at java.lang.Thread.run(Thread.java:818)
Caused by: java.lang.NullPointerException: Attempt to invoke interface method 'int org.ksoap2.serialization.KvmSerializable.getPropertyCount()' on a null object reference
at org.ksoap2.serialization.SoapSerializationEnvelope.getResponse(SoapSerializationEnvelope.java:513)
at com.nkdroid.blooddonation.RegistrationActivity$1.doInBackground(RegistrationActivity.java:146)
at com.nkdroid.blooddonation.RegistrationActivity$1.doInBackground(RegistrationActivity.java:120)
at android.os.AsyncTask$2.call(AsyncTask.java:295)