摘要：最近需要做一個郵件相關(guān)的功能，考慮到自建郵件服務(wù)器維護起來比較麻煩，于是選擇第三方郵件服務(wù)。郵件發(fā)送服務(wù)的對比可以看這篇文章。使用觸發(fā)發(fā)送發(fā)件人收件人主題內(nèi)容使用方式發(fā)送發(fā)件人收件人主題內(nèi)容

最近需要做一個郵件相關(guān)的功能，考慮到自建郵件服務(wù)器維護起來比較麻煩，于是選擇第三方郵件服務(wù)。郵件發(fā)送服務(wù)的對比可以看這篇文章。

最后我選擇了：

sendCloud

mailgun

sendCloud向QQ用戶發(fā)送，mailgun則負責(zé)其他用戶。這就需要我同時為這兩種服務(wù)編寫相應(yīng)的接口。但是它們的文檔里給出的示例代碼又各不相同，有的還不夠優(yōu)雅，比如sendcloud的java示例。兩者依賴的庫又不相同，比如mailgun依賴

jersey-client.jar (version ~ 1.17 - 1.18.1)

jersey-core.jar (version ~ 1.17 - 1.18.1)

jersey-multipart.jar (version ~ 1.17 - 1.18.1)

sendCloud則依賴HttpClient。有沒有一種既能簡化代碼又能實現(xiàn)功能的方案呢，然后我發(fā)現(xiàn)了Jodd。

Jodd介紹：

  
Jodd is set of Java micro frameworks, tools and utilities, under 1.5 MB.

  Designed with common sense to make things simple, but not simpler.

  Get things done! Build your Beautiful Ideas! Kickstart your Startup!

  And enjoy the coding.

很喜歡Jodd的理念：

Think Lightweight, Be Awesome, Get Things Done!

下面開始正題：需要用到的依賴如下：

  
    3.6.5
  

  
        org.jodd
        jodd-http
        ${jodd.version}
  

  
         org.jodd
         jodd-mail
         ${jodd.version}
  

Talk is cheap，貼出代碼。以下僅僅給出簡單的發(fā)送功能，起拋磚引玉的作用，其他功能詳見官網(wǎng)文檔。

mailgun:

import jodd.http.HttpRequest;
import jodd.mail.Email;
import jodd.mail.SendMailSession;
import jodd.mail.SmtpServer;

import java.util.HashMap;
import java.util.Map;


public class MailGun {

    private String SMTP_HOST = "smtp.mailgun.org";

    private String SMTP_USER="YOUR_USER";

    private String SMTP_PASS = "YOUR_PASSWORD";

    private String HTTP_URL="https://api.mailgun.net/v3/YOUR_DOMAIN/messages";

    private String HTTP_API="YOUR_API";


    /**
     * 使用SMTP觸發(fā)發(fā)送
     * @param from 發(fā)件人
     * @param to 收件人
     * @param subject 主題
     * @param text 內(nèi)容
     */
    public void sendBySMTP(String from,String to,String subject,String text){
        SmtpServer smtpServer = SmtpServer.create(SMTP_HOST)
                .authenticateWith(SMTP_USER, SMTP_PASS);
        SendMailSession session = smtpServer.createSession();
        session.open();

        Email email = Email.create()
                .from(from)
                .to(to)
                .subject(subject)
                .addHtml(text);
        session.sendMail(email);
        session.close();
    }

    /**
     * 使用HTTP方式發(fā)送
     * @param from 發(fā)件人
     * @param to 收件人
     * @param subject 主題
     * @param text 內(nèi)容
     */
    public void sendByHTTP(String from,String to,String subject,String text){
        Map formData = new HashMap();
        formData.put("from", from);
        formData.put("to", to);
        formData.put("subject", subject);
        formData.put("text", text);
        HttpRequest
                .post(HTTP_URL)
                .basicAuthentication("api",HTTP_API)
                .form(formData).send();
    }
}

sendCloud:

import jodd.http.HttpRequest;
import jodd.mail.Email;
import jodd.mail.SendMailSession;
import jodd.mail.SmtpServer;

import java.util.HashMap;
import java.util.Map;

public class SendCloud {

    private String HTTP_URL ="http://sendcloud.sohu.com/webapi/mail.send.json";

    private String HTTP_API_USER ="YOUR_API_USER";

    private String HTTP_API_KEY = "YOUR_API_KEY";

    private String FROM = "YPUR_DOMAIN_EMAIL";

    private String SMTP_HOST = "smtpcloud.sohu.com";

    private String SMTP_USER="YOUR_USER";

    private String SMTP_PASS = "YOUR_PASS";

    public void sendBySMTP(String to, String subject, String text){
        SmtpServer smtpServer = SmtpServer.create(SMTP_HOST)
                .authenticateWith(SMTP_USER, SMTP_PASS);
        SendMailSession session = smtpServer.createSession();
        session.open();

        Email email = Email.create()
                .from(FROM)
                .to(to)
                .subject(subject)
                .addHtml(text);
        session.sendMail(email);
        session.close();
    }

    public void sendByHTTP(String to, String subject, String text){
        Map formData = new HashMap();
        formData.put("api_user", HTTP_API_USER);
        formData.put("api_key", HTTP_API_KEY);
        formData.put("from", FROM);
        formData.put("to", to);
        formData.put("subject", subject);
        formData.put("html", text);
        HttpRequest
                .post(HTTP_URL)
                .form(formData)
                .send();
    }
}