无需用户交互即可发送电子邮件 - Android Studio

Question

动机:我正在创建注册活动,我需要在按钮单击下发送自动电子邮件.我已经关注了一些博客,stackoverflow问题,并且无法发送电子邮件到目前为止.

工作环境: Android Studio 1.2 Beta 3

当前关注的问题:使用JavaMail API在Android中发送电子邮件,而不使用默认/内置应用程序

现在这就是我所做的:

下载了三个Jar文件

1. 的activation.jar
2. additional.jar
3. 的mail.jar

然后我在follwoing文件夹中复制了三个jar文件:

G:\ Android Projects\Email\app\libs \

复制文件后,我通过指向Android Studio中的"Project Explorer"找到我的.jar文件,然后将我的树视图从"Android"更改为"Project"

然后展开树Project> app> libs>

找到文件后; 在我做的每个.jar文件上:右键单击 - >添加为库

一旦完成了graddle构建,我就会复制上面的代码,然后问题并运行到我自己的项目中.它编译没有任何错误.

现在的问题是:

当我运行程序时,它显示一个Toast消息"电子邮件已成功发送",但我从未收到电子邮件,也没有任何已发送的邮件在我的帐户中.

这是我所有类和.xml文件的所有代码

MainActivity.java

import android.app.Activity;
import android.os.Bundle;
import android.util.Log;
import android.view.View;
import android.widget.Button;
import android.widget.Toast;

public class MainActivity extends Activity {

/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);

    Button send = (Button)findViewById(R.id.send_email);
    send.setOnClickListener(new View.OnClickListener() {

        public void onClick(View v) {
            // TODO Auto-generated method stub

            try {
                GMailSender sender = new     GMailSender("ars@gmail.com", "123abc-123abc");
                sender.sendMail("ARS",
                        "This is Body HEELO WORLD",
                        "ars@gmail.com",
                        "reciever@gmail.com");
                Toast.makeText(MainActivity.this, "Email was sent successfully.", Toast.LENGTH_LONG).show();
            } catch (Exception e) {
                Log.e("SendMail", e.getMessage(), e);
                Toast.makeText(MainActivity.this, "There was a problem   sending the email.", Toast.LENGTH_LONG).show();
            }

        }
    });

}
}

GMailSender.java

package com.example.hassnainmunir.email;

import javax.activation.DataHandler;
import javax.activation.DataSource;
import javax.mail.Message;
import javax.mail.PasswordAuthentication;
import javax.mail.Session;
import javax.mail.Transport;
import javax.mail.internet.InternetAddress;
import javax.mail.internet.MimeMessage;
import java.io.ByteArrayInputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.security.Security;
import java.util.Properties;

class GMailSender extends javax.mail.Authenticator {
private String mailhost = "smtp.gmail.com";
private String user;
private String password;
private Session session;

static {
    Security.addProvider(new JSSEProvider());
}

public GMailSender(String user, String password) {
    this.user = user;
    this.password = password;

    Properties props = new Properties();
    props.setProperty("mail.transport.protocol", "smtp");
    props.setProperty("mail.host", mailhost);
    props.put("mail.smtp.auth", "true");
    props.put("mail.smtp.port", "465");
    props.put("mail.smtp.socketFactory.port", "465");
    props.put("mail.smtp.socketFactory.class",
            "javax.net.ssl.SSLSocketFactory");
    props.put("mail.smtp.socketFactory.fallback", "false");
    props.setProperty("mail.smtp.quitwait", "false");

    session = Session.getDefaultInstance(props, this);
}

protected PasswordAuthentication getPasswordAuthentication() {
    return new PasswordAuthentication(user, password);
}

public synchronized void sendMail(String subject, String body, String sender, String recipients) throws Exception {
    try{
        MimeMessage message = new MimeMessage(session);
        DataHandler handler = new DataHandler(new ByteArrayDataSource(body.getBytes(), "text/plain"));
        message.setSender(new InternetAddress(sender));
        message.setSubject(subject);
        message.setDataHandler(handler);
        if (recipients.indexOf(',') > 0)
            message.setRecipients(Message.RecipientType.TO, InternetAddress.parse(recipients));
        else
            message.setRecipient(Message.RecipientType.TO, new InternetAddress(recipients));
        Transport.send(message);
    }catch(Exception e){
            e.printStackTrace();
    }
}

public class ByteArrayDataSource implements DataSource {
    private byte[] data;
    private String type;

    public ByteArrayDataSource(byte[] data, String type) {
        super();
        this.data = data;
        this.type = type;
    }

    public ByteArrayDataSource(byte[] data) {
        super();
        this.data = data;
    }

    public void setType(String type) {
        this.type = type;
    }

    public String getContentType() {
        if (type == null)
            return "application/octet-stream";
        else
            return type;
    }

    public InputStream getInputStream() throws IOException {
        return new ByteArrayInputStream(data);
    }

    public String getName() {
        return "ByteArrayDataSource";
    }

    public OutputStream getOutputStream() throws IOException {
        throw new IOException("Not Supported");
    }
}
}

JSSEProvider.java

package com.example.hassnainmunir.email;

import java.security.AccessController;
import java.security.Provider;

public final class JSSEProvider extends Provider {

public JSSEProvider() {
    super("HarmonyJSSE", 1.0, "Harmony JSSE Provider");
    AccessController.doPrivileged(new java.security.PrivilegedAction<Void>() {
        public Void run() {
            put("SSLContext.TLS",
                    "org.apache.harmony.xnet.provider.jsse.SSLContextImpl");
            put("Alg.Alias.SSLContext.TLSv1", "TLS");
            put("KeyManagerFactory.X509",
                    "org.apache.harmony.xnet.provider.jsse.KeyManagerFactoryImpl");
            put("TrustManagerFactory.X509",
                    "org.apache.harmony.xnet.provider.jsse.TrustManagerFactoryImpl");
            return null;
        }
    });
}
}

activity_main.xml中

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
>
<Button android:id="@+id/send_email"
    android:layout_width="fill_parent"
    android:layout_height="wrap_content"
    android:text="@string/Send_Email" />
</LinearLayout>

AndroidMenifest.xml

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.example.hassnainmunir.email" >
<uses-permission android:name="android.permission.INTERNET"/>

<application
    android:allowBackup="true"
    android:icon="@mipmap/ic_launcher"
    android:label="@string/app_name"
    android:theme="@style/AppTheme" >

    <activity
        android:name=".MainActivity"
        android:label="@string/app_name" >
        <intent-filter>
            <action android:name="android.intent.action.MAIN" />

            <category android:name="android.intent.category.LAUNCHER" />
        </intent-filter>
    </activity>
</application>
</manifest>

strings.xml中

<resources>
<string name="app_name">Email</string>

<string name="hello_world">Hello world!</string>
<string name="action_settings">Settings</string>
<string name="Send_Email">Send Email</string>
</resources>

的build.gradle

apply plugin: 'com.android.application'

android {
compileSdkVersion 21
buildToolsVersion "22.0.0"

defaultConfig {
    applicationId "com.example.hassnainmunir.email"
    minSdkVersion 14
    targetSdkVersion 21
    versionCode 1
    versionName "1.0"
}
buildTypes {
    release {
        minifyEnabled false
        proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
    }
}
}

dependencies {
compile fileTree(dir: 'libs', include: ['*.jar'])
compile 'com.android.support:appcompat-v7:22.0.0'
compile files('libs/activation.jar')
}

能帮我辨别我做错了吗？

因为它被困在那里三天了.并且无法收到电子邮件.

Answer 1

这不是你问题的答案，但我认为它可能会有所帮助

看看这个https://mandrillapp.com/api/docs/

我使用 mandrill api 在我的应用程序中发送电子邮件

首先，您在 mandrill 网站中创建帐户，然后填写电子邮件应包含的 json 格式的数据，就像您在此链接中看到的那样https://mandrillapp.com/api/docs/messages.html#method=send

然后执行包含 json 到此 uri 的 HTTP POST 请求：https://mandrillapp.com/api/1.0/messages/send.json

执行

//**********Method to send email 
public void sendEmail(){ 
                new AsyncTask<Void, Void, Void>() {
                @Override
                protected void onPostExecute(Void result) {
                    Toast.makeText(MainActivity.this,
                            "Your message was sent successfully.",
                            Toast.LENGTH_SHORT).show();

                    super.onPostExecute(result);
                }

                @Override
                protected Void doInBackground(Void... params) {


                        String respond = POST(
                                URL,
                                makeMandrillRequest(fromEmail.getText()
                                        .toString(), toEmail.getText()
                                        .toString(), name.getText()
                                        .toString(), text.getText()
                                        .toString(), htmlText.getText()
                                        .toString()));
                        Log.d("respond is ", respond);


                    return null;
                }
            }.execute();
}

//*********method to post json to uri
    public String POST(String url , JSONObject jsonObject) {
    InputStream inputStream = null;
    String result = "";
    try {


        Log.d("internet json ", "In post Method");
        // 1. create HttpClient
        DefaultHttpClient httpclient = new DefaultHttpClient();
        // 2. make POST request to the given URL
        HttpPost httpPost = new HttpPost(url);
        String json = "";

        // 3. convert JSONObject to JSON to String
        json = jsonObject.toString();

        StringEntity se = new StringEntity(json);

        // 4. set httpPost Entity
        httpPost.setEntity(se);

        // 5. Set some headers to inform server about the type of the
        // content
        httpPost.setHeader("Accept", "application/json");
        httpPost.setHeader("Content-type", "application/json");

        // 6. Execute POST request to the given URL
        HttpResponse httpResponse = httpclient.execute(httpPost);

        // 7. receive response as inputStream
        inputStream = httpResponse.getEntity().getContent();

        // 8. convert inputstream to string
        if(inputStream != null){
            result = convertStreamToString(inputStream);
        }else{
            result = "Did not work!";
            Log.d("json", "Did not work!" );
        }
    } catch (Exception e) {
        Log.d("InputStream", e.toString());
    }

    // 9. return result
    return result;
}





//*****************TO create email json
     private JSONObject makeMandrillRequest(String from, String to, String name,
        String text, String htmlText) {

    JSONObject jsonObject = new JSONObject();
    JSONObject messageObj = new JSONObject();
    JSONArray toObjArray = new JSONArray();
    JSONArray imageObjArray = new JSONArray();
    JSONObject imageObjects = new JSONObject();
    JSONObject toObjects = new JSONObject();

    try {
        jsonObject.put("key", "********************");

        messageObj.put("html", htmlText);
        messageObj.put("text", text);
        messageObj.put("subject", "testSubject");
        messageObj.put("from_email", from);
        messageObj.put("from_name", name);

        messageObj.put("track_opens", true);
        messageObj.put("tarck_clicks", true);
        messageObj.put("auto_text", true);
        messageObj.put("url_strip_qs", true);
        messageObj.put("preserve_recipients", true);

        toObjects.put("email", to);
        toObjects.put("name", name);
        toObjects.put("type", "to");

        toObjArray.put(toObjects);

        messageObj.put("to", toObjArray);
        if (encodedImage != null) {
            imageObjects.put("type", "image/png");
            imageObjects.put("name", "IMAGE");
            imageObjects.put("content", encodedImage);

            imageObjArray.put(imageObjects);
            messageObj.put("images", imageObjArray);
        }

        jsonObject.put("message", messageObj);

        jsonObject.put("async", false);



        Log.d("Json object is ", " " + jsonObject);

    } catch (JSONException e) {
        // TODO Auto-generated catch block
        e.printStackTrace();
    }

    return jsonObject;
}

还要检查这个库，它可以使其更容易实现。