Java 解析数据库用户密码重置

我正在ANDROID应用程序中使用parse数据库创建登录。 我现在已经手动添加了密码重置实用程序， 这意味着，如果用户希望重置密码，他们将使用应用程序本身向应用程序管理员和网站管理员发送通知电子邮件

现在我想添加一个函数，将新密码写入parse数据库并 通过电子邮件自动向用户发送该密码

如果有人知道怎么做，请帮助我

我的解析类名

_使用者

解析列名

密码、电子邮件

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你可能想考虑这个问题：

这将有助于节省重新发明轮子的需要。这与mailgun插件相结合，将有助于将这些功能集成到您的应用程序中

    import android.content.DialogInterface;
    import android.content.Intent;
    import android.net.Uri;
    import android.os.Build;
    import android.os.Bundle;
    import android.support.v7.app.AlertDialog;
    import android.support.v7.app.AppCompatActivity;
    import android.view.View;
    import android.widget.Button;
    import android.widget.EditText;
    import android.widget.TextView;
    import android.widget.Toast;
    import com.parse.LogInCallback;
    import com.parse.Parse;
    import com.parse.ParseException;
    import com.parse.ParseUser;
    import app.com.anew.gdg.utilities.ApplicationData;

    public class MainActivity extends AppCompatActivity {
        protected EditText mUsername;
        protected EditText mPass;
        protected Button mBtn;
        TextView forgotPassword;
        ApplicationData applicationData;
        @Override
        protected void onCreate(Bundle savedInstanceState) {
            super.onCreate(savedInstanceState);
            setContentView(R.layout.activity_main);
            try {
                Parse.initialize(new Parse.Configuration.Builder(this)
                        .applicationId("")
                        .server("")

                        .build()
                );
            }catch (Exception e){}
            applicationData = new ApplicationData(MyApplication.getInstance());
            if(applicationData.isLoggedIn()){
                Intent welcomhome = new Intent(MainActivity.this, AppMain.class);
                startActivity(welcomhome);
            }
            mUsername = (EditText) findViewById(R.id.uu);
            mPass     = (EditText) findViewById(R.id.pp);
            mBtn      = (Button) findViewById(R.id.bb);
            mBtn.setOnClickListener(new View.OnClickListener() {
                public void onClick(View v) {
                    String username= mUsername.getText().toString().trim();
                    String password= mPass.getText().toString().trim();
                    ParseUser.logInInBackground(username, password, new LogInCallback() {
                        public void done(ParseUser user, ParseException e) {
                            if (user != null) {
                                String registeredDevice = user.getString("devicename");
                                String currentDevice = Build.MODEL;
                                if ((registeredDevice.equalsIgnoreCase("") ) || (registeredDevice == null)){
                                    user.put("devicename", currentDevice);
                                    user.saveInBackground();
                                    Toast.makeText(MainActivity.this, "You have registered this app with this device!", Toast.LENGTH_LONG).show();
                                    Intent welcomehome = new Intent(MainActivity.this, AppMain.class);
                                    applicationData.setLogin(true);
                                    startActivity(welcomehome);
                                    finish();
                                }else{
                                    if(currentDevice.equals(registeredDevice)){
                                        Toast.makeText(MainActivity.this, "Welcome!", Toast.LENGTH_LONG).show();
                                        Intent welcomehome = new Intent(MainActivity.this, AppMain.class);
                                        applicationData.setLogin(true);
                                        startActivity(welcomehome);
                                        finish();
                                    }else{
    // delete registered device from database.
    //user.remove("devicename");
    //user.saveInBackground();                                                    Toast.makeText(MainActivity.this, "You are using unregistered device!!", Toast.LENGTH_LONG).show();
                                        ParseUser.logOutInBackground();
                                        finish();
                                    }
                                }
                            } else {
                                AlertDialog.Builder builder = new AlertDialog.Builder(MainActivity.this);
                                builder.setMessage(e.getMessage());
                                builder.setTitle("Sorry");
                                builder.setPositiveButton("ok", new DialogInterface.OnClickListener() {
                                    @Override
                                    public void onClick(DialogInterface dialog, int which) {
                                        dialog.dismiss();
                                    }
                                });
                                AlertDialog dialog = builder.create();
                                dialog.show();
                            }
                        }
                    });
                }
            });
            forgotPassword = (TextView) findViewById(R.id.forgotPassword);
            forgotPassword.setOnClickListener(new View.OnClickListener() {
                @Override
                public void onClick(View v) {
                    String personEmail = "membership@company.com";
                    Intent i = new Intent(Intent.ACTION_SEND);
                    i.setData(Uri.parse("mailto:"));
                    i.setType("plain/text");
                    i.putExtra(Intent.EXTRA_EMAIL, new String[] {personEmail});
                    i.putExtra(Intent.EXTRA_SUBJECT, "Forgot Password");
                    i.putExtra(Intent.EXTRA_TEXT, "Hey,\nI forgot my Password Kindly Reset it.");
                    startActivity(i);
                }
            });
        }
        @Override
        public void onBackPressed() {
            super.onBackPressed();
            System.exit(0);
        }

    }