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當我運行我的代碼時，出現致命異常：AsyncTask＃1。日誌告訴我這是由ArrayIndexOutOfBoundsException引起的。Android：致命例外：Asynctask＃1
這裏是我的項目的代碼 loginactivity
package com.app.amusa;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import org.apache.http.NameValuePair;
import org.apache.http.message.BasicNameValuePair;
import org.json.JSONArray;
import org.json.JSONObject;
import android.os.AsyncTask;
import android.os.Bundle;
import android.util.Log;
import android.view.View;
import android.widget.Button;
import android.widget.EditText;
import android.widget.TextView;
import android.widget.Toast;
import android.app.Activity;
import android.app.ProgressDialog;
import android.content.Intent;
public class loginactivity extends Activity {
private EditText email, password;
private SessionManager session;
private JSONArray jsonArray;
private JSONObject jsonObject;
private Streamer Streamer;
private String output,url,success;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.layout_login);
session = new SessionManager(getApplicationContext());
Streamer = new Streamer();
Toast.makeText(getApplicationContext(),
"User Login Status: " + session.isLoggedIn(), Toast.LENGTH_LONG)
.show();
email = (EditText) findViewById(R.id.etEmail);
password = (EditText) findViewById(R.id.etPass);
TextView register = (TextView) findViewById(R.id.txtregister);
register.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
Intent i = new Intent(getApplicationContext(), Registeractivity.class);
startActivity(i);
}
});
}
public void login(View v) {
if (email.getText().toString().trim().length() > 0
&& password.getText().toString().trim().length() > 0)
{
new Masuk().execute();
}
else
{
Toast.makeText(getApplicationContext(), "Email and Password is Empty!!", Toast.LENGTH_LONG).show();
}
}
public void dologin(){
try {
List<NameValuePair>nameValuePairs = new ArrayList<NameValuePair>();
nameValuePairs.add(new BasicNameValuePair("aksi", "login"));
nameValuePairs.add(new BasicNameValuePair("email", email.getText().toString()));
nameValuePairs.add(new BasicNameValuePair("password", password.getText().toString()));
jsonArray = Streamer.postData(VariabelGlobal.url+"/user.php", nameValuePairs);
jsonObject = jsonArray.getJSONObject(0);
success = jsonObject.getString(success);
JSONArray hasil = jsonObject.getJSONArray("login");
if (success.equals("1")) {
for (int i = 0; i < hasil.length(); i++) {
JSONObject c = hasil.getJSONObject(i);
String nama = c.getString("nama").trim();
String email = c.getString("email").trim();
session.createLoginSession(nama, email);
Log.e("ok", " ambil data");
}
} else {
Log.e("erro", "Can not get datas");
}
} catch (Exception e) {
// TODO: handle exception
e.printStackTrace();
}
}
private class Masuk extends AsyncTask<Object, Integer, Void> {
private ProgressDialog dialog;
@Override
protected void onPreExecute() {
dialog = new ProgressDialog(loginactivity.this);
dialog.setMessage("Is Loging In");
dialog.setIndeterminate(false);
dialog.setCanceledOnTouchOutside(false);
//dialog.setCancelable(false);
dialog.setProgressStyle(ProgressDialog.STYLE_SPINNER);
dialog.setProgress(0);
dialog.show();
}
@Override
protected Void doInBackground(Object... arg0) {
if(arg0[0].equals("login")){
output = "login";
dologin();
}
return null;
}
@Override
protected void onProgressUpdate(Integer... progress) {
dialog.setProgress(progress[0]);
}
@Override
protected void onPostExecute(Void result) {
try {
dialog.dismiss();
if(output.equals("login")){
Toast.makeText(loginactivity.this, jsonObject.getString("status"), Toast.LENGTH_SHORT).show();
Intent a = new Intent(loginactivity.this, Dashboard.class);
startActivity(a);
finish();
}
} catch (Exception e) {
}
}
}
}
這裏是流光。這是JSON與POST方法
package com.app.amusa;
import java.io.BufferedReader;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.util.List;
import org.apache.http.HttpEntity;
import org.apache.http.HttpResponse;
import org.apache.http.NameValuePair;
import org.apache.http.client.HttpClient;
import org.apache.http.client.entity.UrlEncodedFormEntity;
import org.apache.http.client.methods.HttpGet;
import org.apache.http.client.methods.HttpPost;
import org.apache.http.impl.client.DefaultHttpClient;
import org.apache.http.params.HttpConnectionParams;
import org.apache.http.params.HttpParams;
import org.json.JSONArray;
import android.util.Log;
public class Streamer {
private InputStream input;
private HttpClient klien;
private HttpGet req;
private HttpPost post;
private HttpResponse response;
private BufferedReader dataInput;
private HttpEntity httpEntity;
private HttpParams params;
public JSONArray postData(String url, List<NameValuePair> data) {
JSONArray jsonArray = null;
try {
klien = new DefaultHttpClient();
params = klien.getParams();
HttpConnectionParams.setTcpNoDelay(params, true);
post = new HttpPost(url);
post.setEntity(new UrlEncodedFormEntity(data));
response = klien.execute(post);
httpEntity = response.getEntity();
input = httpEntity.getContent();
dataInput = new BufferedReader(new InputStreamReader(input, "iso-8859-1"));
StringBuilder sb = new StringBuilder();
String baris = null;
while ((baris = dataInput.readLine()) != null) {
sb.append(baris + "\n");
}
dataInput.close();
input.close();
jsonArray = new JSONArray(sb.toString());
} catch (Exception e) {
Log.e("gagal postData", e.getMessage());
}
return jsonArray;
}
}
，這是連接php文件到我的服務器
if ($aksi == "login"){
$a = mysql_query("select * from data_orangtua where email ='$email' and password = '$password'");
$jml = mysql_num_rows($a);
if ($jml == 0){
$data[] = NULL;
}else{
$data['login'] = array();
while ($dt = mysql_fetch_array($a))
{
$h['id_orangtua'] = $dt['id_orangtua'] ;
$h['nama'] = $dt['nama'] ;
$h['email'] = $dt['email'] ;
$h['password'] = $dt['password'];
array_push($data["login"], $h);
}
$data["status"] = "Anda Berhasil Login";
$data['success']= '1';
}
} 回聲json_encode（$的數據）;
有人請幫助我。 謝謝
哦，謝謝。你幫我。謝謝。 – riskywidiantoro