嘿开发人员我在Android应用程序中获取数据时遇到错误。以下是我的错误日志：
01-06 16:38:24.535: E/Volley(13308): [7815] NetworkDispatcher.run: Unhandled exception java.lang.NullPointerException
01-06 16:38:24.535: E/Volley(13308): java.lang.NullPointerException
01-06 16:38:24.535: E/Volley(13308): at libcore.net.UriCodec.encode(UriCodec.java:132)
01-06 16:38:24.535: E/Volley(13308): at java.net.URLEncoder.encode(URLEncoder.java:57)
01-06 16:38:24.535: E/Volley(13308): at com.android.volley.Request.encodeParameters(Request.java:449)
01-06 16:38:24.535: E/Volley(13308): at com.android.volley.Request.getBody(Request.java:435)
01-06 16:38:24.535: E/Volley(13308): at com.android.volley.toolbox.HurlStack.addBodyIfExists(HurlStack.java:236)
01-06 16:38:24.535: E/Volley(13308): at com.android.volley.toolbox.HurlStack.setConnectionParametersForRequest(HurlStack.java:210)
01-06 16:38:24.535: E/Volley(13308): at com.android.volley.toolbox.HurlStack.performRequest(HurlStack.java:106)
01-06 16:38:24.535: E/Volley(13308): at com.android.volley.toolbox.BasicNetwork.performRequest(BasicNetwork.java:93)
01-06 16:38:24.535: E/Volley(13308): at com.android.volley.NetworkDispatcher.run(NetworkDispatcher.java:110)
01-06 16:38:24.576: E/Error.Response(13308): com.android.volley.VolleyError: java.lang.NullPointerException
public class Edit_Address extends Activity implements OnClickListener,
TextWatcher {
String[] con = { "India" };
String[] st = { "--- Please Select State ---", "Andhra Pradesh",
"Orissa",
"Telangana", "Tripura", "Uttar Pradesh", "Uttarakhand",
"West Bengal" };
Spinner state, country;
String cartprice = "", cartimage = "", cartdesc = "", cartmodelno = "",
cartqty = "", cartproductid = "", cartintoprice = "";
EditText email, mobile, name, add1, add2, city, postcode;
TextView termstitle;
Button save;
String pname, pemail, pmobile, padd1, padd2, pcity, ppostcode,
shipstatus = "no", pcountry, pstate, status, orderid, subtotal,
shippingcharge, fpName, gpName, fpEmail, gpEmail;
String spname, spemail, spmobile, spadd1, spadd2, spcity, sppostcode,
sshipstatus = "no", spcountry, spstate, flag, fspName, gspName,
fspEmail, gspEmail;
@SuppressWarnings({ "unchecked", "rawtypes" })
@Override
protected void onCreate(Bundle savedInstanceState) {
// TODO Auto-generated method stub
super.onCreate(savedInstanceState);
setContentView(R.layout.edit_address);
getActionBar().setBackgroundDrawable(
new ColorDrawable(Color.parseColor("#ffffff")));
getActionBar().setDisplayOptions(ActionBar.DISPLAY_SHOW_CUSTOM);
getActionBar().setCustomView(R.layout.abs_layout);
View v = getActionBar().getCustomView();
TextView titleTxtView = (TextView) v.findViewById(R.id.mytext);
titleTxtView.setText("Edit Address");
email = (EditText) findViewById(R.id.emailbill);
mobile = (EditText) findViewById(R.id.mobilebill);
name = (EditText) findViewById(R.id.namebill);
add1 = (EditText) findViewById(R.id.add1bill);
add2 = (EditText) findViewById(R.id.add2bill);
city = (EditText) findViewById(R.id.citybill);
save = (Button) findViewById(R.id.save);
postcode = (EditText) findViewById(R.id.postbill);
save.setOnClickListener(this);
email.addTextChangedListener(this);
mobile.addTextChangedListener(this);
name.addTextChangedListener(this);
add1.addTextChangedListener(this);
postcode.addTextChangedListener(this);
city.addTextChangedListener(this);
state = (Spinner) findViewById(R.id.statebill);
country = (Spinner) findViewById(R.id.countrybill);
ArrayAdapter aa = new ArrayAdapter(this,
android.R.layout.simple_spinner_item, st);
aa.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);
// Setting the ArrayAdapter data on the Spinner
state.setAdapter(aa); ////error shows in this line
ArrayAdapter cc = new ArrayAdapter(this,
android.R.layout.simple_spinner_item, con);
aa.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);
country.setAdapter(cc);
Intent i = getIntent();
pname = i.getStringExtra("name");
// fpName = i.getStringExtra("name");
// gpName = i.getStringExtra("name");
// fpEmail = i.getStringExtra("email");
pemail = i.getStringExtra("email");
// gpEmail = i.getStringExtra("email");
pmobile = i.getStringExtra("mobile");
padd1 = i.getStringExtra("add1");
padd2 = i.getStringExtra("add2");
pcity = i.getStringExtra("city");
pcountry = i.getStringExtra("country");
pstate = i.getStringExtra("state");
ppostcode = i.getStringExtra("pincode");
email.setText(pemail);
// email.setText(fpEmail);
// email.setText(gpEmail);
// name.setText(fpName);
// name.setText(gpName);
name.setText(pname);
mobile.setText(pmobile);
add1.setText(padd1);
add2.setText(padd2);
postcode.setText(ppostcode);
city.setText(pcity);
if (!pstate.equals(null)) {
int spinnerPostion = aa.getPosition(pstate);
state.setSelection(spinnerPostion);
spinnerPostion = 0;
}
if (!pcountry.equals(null)) {
int spinnerPostion = cc.getPosition(pcountry);
country.setSelection(spinnerPostion);
spinnerPostion = 0;
}
}
@Override
public void onClick(View v) {
// TODO Auto-generated method stub
try {
pname = name.getText().toString();
pemail = email.getText().toString();
// fpName = name.getText().toString();
// fpEmail = email.getText().toString();
// gpName = name.getText().toString();
// gpEmail = email.getText().toString();
padd1 = add1.getText().toString();
padd2 = add2.getText().toString();
ppostcode = postcode.getText().toString();
pcity = city.getText().toString();
pstate = state.getSelectedItem().toString();
pcountry = country.getSelectedItem().toString();
pmobile = mobile.getText().toString();
if (v == save) {
if (email.getText().toString().trim().length() == 0) {
email.setError("Please eneter email Id.");
email.requestFocus();
} else if (!android.util.Patterns.EMAIL_ADDRESS.matcher(
email.getText().toString()).matches()) {
email.setError("Email address should contains a valid maild_id format !!");
email.requestFocus();
}
else if (mobile.getText().toString().trim().length() == 0) {
mobile.setError("Please eneter valid number");
mobile.requestFocus();
}
else if (name.getText().toString().trim().length() == 0) {
name.setError("Please eneter name");
name.requestFocus();
}
else if (add1.getText().toString().trim().length() == 0) {
add1.setError("Please eneter address");
add1.requestFocus();
}
else if (city.getText().toString().trim().length() == 0) {
city.setError("Please eneter city");
city.requestFocus();
}
else if (postcode.getText().toString().trim().length() == 0) {
postcode.setError("Please eneter pin code");
postcode.requestFocus();
}
else {
fetch_data();
}
}
} catch (NullPointerException e) {
// TODO: handle exception
e.printStackTrace();
}
}
ProgressDialog pDialog;
private void fetch_data() {
// TODO Auto-generated method stub
// bar.setVisibility(View.VISIBLE);
pDialog = new ProgressDialog(Edit_Address.this);
pDialog.setMessage("Please Wait...");
pDialog.setCancelable(false);
pDialog.show();
StringRequest req = new StringRequest(Request.Method.POST,
Config.YOUR_API_URL + "updateuserinformation.aspx",
new Response.Listener<String>() {
@Override
public void onResponse(String response) {
// bar.setVisibility(View.GONE);
// response
pDialog.dismiss();
Log.e("Response", response);
try {
JSONObject obj = new JSONObject(response);
int success = obj.getInt("response");
if (success == 1) {
showconfirm();
} else if (success == 0) {
Toast.makeText(getApplicationContext(),
"error occured", Toast.LENGTH_LONG)
.show();
}
} catch (JSONException e) {
// TODO Auto-generated catch block
e.printStackTrace();
Log.e("exception", "ex" + e.toString());
}
}
}, new Response.ErrorListener() {
@Override
public void onErrorResponse(VolleyError error) {
// bar.setVisibility(View.GONE);
pDialog.dismiss();
showerrordialog();
// error
// Log.d("Error.Response", response);
}
}) {
@Override
protected Map<String, String> getParams() {
// String pid=String.valueOf(produtid);
Map<String, String> params = new HashMap<String, String>();
params.put("name", pname);
params.put("email", pemail);
// params.put("name", fpName);
// params.put("email", fpEmail);
// params.put("name", gpName);
// params.put("email", gpEmail);
params.put("Address1", padd1);
params.put("Address2", padd2);
params.put("City", pcity);
params.put("Zip", ppostcode);
params.put("State", pstate);
params.put("Country", pcountry);
params.put("ContactNo", pmobile);
return params;
}
};
AppController.getInstance().addToRequestQueue(req);
}
protected void showerrordialog() {
// TODO Auto-generated method stub
AlertDialog.Builder builder = new AlertDialog.Builder(this);
builder.setMessage(
"It's taking Longer than usuall.Do You want to wait?")
.setCancelable(false)
.setPositiveButton("Ok", new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int id) {
fetch_data();
}
});
// Creating dialog box
AlertDialog alert = builder.create();
// Setting the title manually
alert.setTitle(" Issue !");
alert.show();
}
protected void showconfirm() {
// TODO Auto-generated method stub
AlertDialog.Builder builder = new AlertDialog.Builder(this);
builder.setMessage("Your detail is sucessfully added.")
.setCancelable(false)
.setPositiveButton("Ok", new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int id) {
Intent i = new Intent(getApplicationContext(),
Show_Address.class);
startActivity(i);
}
});
// Creating dialog box
AlertDialog alert = builder.create();
// Setting the title manually
alert.setTitle(" Issue !");
alert.show();
}
@Override
public void beforeTextChanged(CharSequence s, int start, int count,
int after) {
// TODO Auto-generated method stub
}
@Override
public void onTextChanged(CharSequence s, int start, int before, int count) {
// TODO Auto-generated method stub
}
@Override
public void afterTextChanged(Editable s) {
// TODO Auto-generated method stub
if (name.getText().length() > 0) {
name.setError(null);
name.setSelection(name.length());
}
if (email.getText().length() > 0) {
email.setError(null);
email.setSelection(email.length());
}
if (mobile.getText().length() > 0) {
mobile.setError(null);
mobile.setSelection(mobile.length());
}
if (add1.getText().length() > 0) {
add1.setError(null);
add1.setSelection(add1.length());
}
if (city.getText().length() > 0) {
city.setError(null);
city.setSelection(city.length());
}
if (postcode.getText().length() > 0) {
postcode.setError(null);
postcode.setSelection(postcode.length());
}
}
}
感谢 提前