登陆验证
package src.siwi.map.android;
import java.io.DataInputStream;
import java.net.HttpURLConnection;
import java.net.URL;
import android.app.Activity;
import android.app.AlertDialog;
import android.app.ProgressDialog;
import android.content.DialogInterface;
import android.content.Intent;
import android.content.SharedPreferences;
import android.os.Bundle;
import android.os.Handler;
import android.os.Message;
import android.util.Log;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.CheckBox;
import android.widget.CompoundButton;
import android.widget.EditText;
import android.widget.Toast;
import android.widget.CompoundButton.OnCheckedChangeListener;
public class Login extends Activity {
private String userName;
private String password;
private EditText view_userName;
private EditText view_password;
private CheckBox view_rememberMe;
private Button view_loginSubmit;
private static final int MENU_EXIT = Menu.FIRST - 1;
private static final int MENU_ABOUT = Menu.FIRST;
private final String SHARE_LOGIN_TAG = "MAP_SHARE_LOGIN_TAG";
private String SHARE_LOGIN_USERNAME = "MAP_LOGIN_USERNAME";
private String SHARE_LOGIN_PASSWORD = "MAP_LOGIN_PASSWORD";
private boolean isNetError;
private ProgressDialog proDialog;
Handler loginHandler = new Handler() {
public void handleMessage(Message msg)
{
isNetError = msg.getData().getBoolean("isNetError");
if(proDialog != null)
{
proDialog.dismiss();
}
if(isNetError)
{
Toast.makeText(Login.this, "当前网络不可用",
Toast.LENGTH_SHORT).show();
}
else
{
Toast.makeText(Login.this, "错误的用户名或密码",
Toast.LENGTH_SHORT).show();
clearSharePassword();
}
}
};
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.login);
findViewsById();
initView(false);
setListener();
}
private void findViewsById() {
view_userName = (EditText)findViewById(R.id.loginUserNameEdit);
view_password = (EditText)findViewById(R.id.loginPasswordEdit);
view_rememberMe = (CheckBox)findViewById(R.id.loginRememberMeCheckBox);
view_loginSubmit = (Button)findViewById(R.id.loginSubmit);
}
private void initView(boolean isRememberMe) {
SharedPreferences share = getSharedPreferences(SHARE_LOGIN_TAG, 0);
String userName = share.getString(SHARE_LOGIN_USERNAME, "");
String password = share.getString(SHARE_LOGIN_PASSWORD, "");
Log.d(this.toString(), "userName=" + userName + " password=" + password);
if (!"".equals(userName)) {
view_userName.setText(userName);
}
if (!"".equals(password)) {
view_password.setText(password);
view_rememberMe.setChecked(true);
}
if (view_password.getText().toString().length() > 0) {
// view_loginSubmit.requestFocus();
// view_password.requestFocus();
}
share = null;
}
private boolean validateLocalLogin(String userName, String password, String validateUrl) {
boolean loginState = false;
HttpURLConnection conn = null;
DataInputStream dis = null;
try
{
URL url = new URL(validateUrl);
conn = (HttpURLConnection)url.openConnection();
conn.setConnectTimeout(5000);
conn.setRequestMethod("GET");
conn.connect();
dis = new DataInputStream(conn.getInputStream());
if(conn.getResponseCode() != HttpURLConnection.HTTP_OK)
{
Log.d(this.toString(), "HTTP ERROR");
isNetError = true;
return false;
}
int loginStateInt = dis.read();
Log.v("loginState", String.valueOf(loginStateInt));
if(loginStateInt == 1)
{
loginState = true;
}
}
catch (Exception e)
{
e.printStackTrace();
isNetError = true;
Log.d(this.toString(), e.getMessage() + " 127 line");
}
finally
{
if(conn != null)
{
conn.disconnect();
}
}
if(loginState)
{
if(isRememberMe())
{
saveSharePreferences(true, true);
}
else
{
saveSharePreferences(true, false);
}
}
else
{
if(!isNetError)
{
clearSharePassword();
}
}
if(!view_rememberMe.isChecked())
{
clearSharePassword();
}
Log.v("loginState", String.valueOf(loginState));
return loginState;
}
private void saveSharePreferences(boolean saveUserName, boolean savePassword) {
SharedPreferences share = getSharedPreferences(SHARE_LOGIN_TAG, 0);
if(saveUserName) {
Log.d(this.toString(), "saveUserName="
+ view_userName.getText().toString());
share.edit().putString(SHARE_LOGIN_USERNAME,
view_userName.getText().toString()).commit();
}
if (savePassword) {
share.edit().putString(SHARE_LOGIN_PASSWORD,
view_password.getText().toString()).commit();
}
share = null;
}
private boolean isRememberMe() {
if (view_rememberMe.isChecked()) {
return true;
}
return false;
}
private OnClickListener submitListener = new OnClickListener() {
public void onClick(View v) {
proDialog = ProgressDialog.show(Login.this, "请稍候",
"", true, true);
Thread loginThread = new Thread(new LoginFailureHandler());
loginThread.start();
}
};
// .start();
// }
// };
private OnCheckedChangeListener rememberMeListener = new OnCheckedChangeListener() {
public void onCheckedChanged(CompoundButton buttonView,
boolean isChecked) {
if (view_rememberMe.isChecked()) {
Toast.makeText(Login.this, "ischecked",
Toast.LENGTH_SHORT).show();
}
}
};
private void setListener() {
view_loginSubmit.setOnClickListener(submitListener);
view_rememberMe.setOnCheckedChangeListener(rememberMeListener);
}
public boolean onCreateOptionsMenu(Menu menu) {
super.onCreateOptionsMenu(menu);
menu.add(0, MENU_EXIT, 0, getResources().getText(R.string.MENU_EXIT));
menu.add(0, MENU_ABOUT, 0, getResources().getText(R.string.MENU_ABOUT));
return true;
}
public boolean onMenuItemSelected(int featureId, MenuItem item) {
super.onMenuItemSelected(featureId, item);
switch (item.getItemId()) {
case MENU_EXIT:
finish();
break;
case MENU_ABOUT:
alertAbout();
break;
}
return true;
}
private void alertAbout() {
new AlertDialog.Builder(Login.this).setTitle(R.string.MENU_ABOUT)
.setMessage(R.string.aboutInfo).setPositiveButton(
R.string.ok_label,
new DialogInterface.OnClickListener() {
public void onClick(
DialogInterface dialoginterface, int i) {
}
}).show();
}
private void clearSharePassword() {
SharedPreferences share = getSharedPreferences(SHARE_LOGIN_TAG, 0);
share.edit().putString(SHARE_LOGIN_PASSWORD, "").commit();
share = null;
}
class LoginFailureHandler implements Runnable {
public void run() {
userName = view_userName.getText().toString();
password = view_password.getText().toString();
String validateURL="http://10.0.2.2:8080/androidShopServer/loginCheck.action?userName="
+ userName + "&password=" + password;
boolean loginState = validateLocalLogin(userName, password,
validateURL);
Log.d(this.toString(), "validateLogin");
if(loginState)
{
Intent intent = new Intent();
intent.setClass(Login.this, IndexPage.class);
Bundle bundle = new Bundle();
bundle.putString("MAP_USERNAME", userName);
intent.putExtras(bundle);
startActivity(intent);
proDialog.dismiss();
} else {
Message message = new Message();
Bundle bundle = new Bundle();
bundle.putBoolean("isNetError", isNetError);
message.setData(bundle);
loginHandler.sendMessage(message);
}
}
}
}