如何使用JavaMail API发送电子邮件在android系统

问题描述

我要发在Android应用程序的电子邮件，而无需使用电子邮件客户端（没有用户交互）。我有code和我想在我的应用程序。但是，当我试图运行，这表明通知消息派。但我没有收到我的code提到的特定ID的任何电子邮件。我没有得到任何错误或警告了。请谁能帮助我走出这个问题。谢谢

这是我的code

  //导入文件    公共类SendReport扩展ActionBarActivity实现View.OnClickListener {    Button按钮;
    EDITTEXT的EditText，editText2;
    串收件人;
    会话的会话= NULL;
    ProgressDialog pdialog = NULL;
    上下文的背景下= NULL;
    字符串的TextMessage = NULL;
    字符串username [email protected];
    字符串密码=senderpassword;    @覆盖
    保护无效的onCreate（捆绑savedInstanceState）{
        super.onCreate（savedInstanceState）;
        的setContentView（R.layout.activity_send_report）;
        上下文=这一点;
        按钮=（按钮）findViewById（R.id.sendbutton）;
        EDITTEXT =（EditText上）findViewById（R.id.textView2）;
        editText2 =（EditText上）findViewById（R.id.textView4）;
        button.setOnClickListener（本）;
        }    @覆盖
    公共无效的onClick（视图v）{
        。收件人= editText.getText（）的toString（）;
        。的TextMessage = editText2.getText（）的toString（）;        属性道具=新特性（）;
        props.put（mail.smtp.auth，真）;
        props.put（mail.smtp.starttls.enable，真）;
        props.put（mail.smtp.host，smtp.gmail.com）;
        props.put（mail.smtp.port，587）;
        会议=作为Session.getDefaultInstance（道具，新javax.mail.Authenticator（）{
            受保护的PasswordAut​​hentication的getPasswordAut​​hentication（）{
                返回新的PasswordAut​​hentication（用户名，密码）;
            }
        }）;
        pdialog = ProgressDialog.show（背景下，，发送邮件...，真正的）;
        RetrieveFeedTask任务=新RetrieveFeedTask（）;
        task.execute（）;
    } 类RetrieveFeedTask扩展的AsyncTask＆LT;弦乐，太虚，字符串＆GT; {       保护字符串doInBackground（字符串... PARAMS）{           尝试
           {               的MimeMessage消息=新的MimeMessage（会话）;
               message.setFrom（新网际地址（[email protected]））;
               message.setRecipients（javax.mail.Message.RecipientType.TO，InternetAddress.parse（收件人））;
               message.setContent（TextMessage中，text / html的;字符集= UTF-8）;
               Transport.send（消息）;
           }           赶上（MessagingException E）
           {
               e.printStackTrace（）;
           }           赶上（例外五）
           {
               e.printStackTrace（）;
           }           返回null;
       }
        保护无效onPostExecute（字符串供稿）{
              pdialog.dismiss（）;
              editText2.setText（）;
              editText.setText（）;
              Toast.makeText（getApplicationContext（），消息派，Toast.LENGTH_SHORT）.show（）;
        }
    }
 

解决方案

我在几个月前有这个问题。

您必须允许不够安全的应用访问您的谷歌帐户。

更改在这里

I want to send an email in android app without using email client(without user interaction). I have code and I tried it in my app. But when I tried to run, it showed a notification "Message sent". But I did not receive any email from the particular id which I mentioned in the code. I did not get any error or warnings too. Please anyone help me to get out of this problem. Thanks

Here is my code

    //Import files

    public class SendReport extends ActionBarActivity implements View.OnClickListener {

    Button button;
    EditText editText, editText2;
    String recipient;
    Session session = null;
    ProgressDialog pdialog = null;
    Context context = null;
    String textmessage = null;
    String username = "[email protected]";
    String password = "senderpassword";

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_send_report);
        context = this;
        button = (Button) findViewById(R.id.sendbutton);
        editText = (EditText) findViewById(R.id.textView2);
        editText2 = (EditText) findViewById(R.id.textView4);
        button.setOnClickListener(this);
        }

    @Override
    public void onClick(View v) {
        recipient = editText.getText().toString();
        textmessage = editText2.getText().toString();

        Properties props = new Properties();
        props.put("mail.smtp.auth", "true");
        props.put("mail.smtp.starttls.enable", "true");
        props.put("mail.smtp.host", "smtp.gmail.com");
        props.put("mail.smtp.port", "587");
        session = Session.getDefaultInstance(props, new javax.mail.Authenticator() {
            protected PasswordAuthentication getPasswordAuthentication() {
                return new PasswordAuthentication(username,password);
            }
        });
        pdialog = ProgressDialog.show(context, "", "Sending Mail...", true);
        RetrieveFeedTask task = new RetrieveFeedTask();
        task.execute();
    }

 class RetrieveFeedTask extends AsyncTask<String, Void, String> {

       protected String doInBackground(String... params) {

           try
           {

               MimeMessage message = new MimeMessage(session);
               message.setFrom(new InternetAddress("[email protected]"));
               message.setRecipients(javax.mail.Message.RecipientType.TO, InternetAddress.parse(recipient));
               message.setContent(textmessage,"text/html; charset=utf-8");
               Transport.send(message);
           }

           catch(MessagingException e)
           {
               e.printStackTrace();
           }

           catch(Exception e)
           {
               e.printStackTrace();
           }

           return null;
       }
        protected void onPostExecute(String feed) {
              pdialog.dismiss();
              editText2.setText("");
              editText.setText("");
              Toast.makeText(getApplicationContext(), "Message sent", Toast.LENGTH_SHORT).show();
        }
    }

解决方案

I had this problem some months ago.

You have to allowing less secure apps to access your google account.

Change it here

Now your email is correctly sent ;)

Info : https://support.google.com/accounts/answer/6010255?hl=en

这篇关于如何使用JavaMail API发送电子邮件在android系统的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持！