Spring框架JavaMailSender发送邮件工具类详解

本文实例为大家分享了spring框架javamailsender发送邮件工具类，供大家参考，具体内容如下

需要用到的jar包：

下面是发送工具类代码：

package com.test.email;

import org.springframework.core.io.filesystemresource;
import org.springframework.mail.simplemailmessage;
import org.springframework.mail.javamail.javamailsenderimpl;
import org.springframework.mail.javamail.mimemessagehelper;

import javax.activation.datahandler;
import javax.activation.filedatasource;
import javax.mail.bodypart;
import javax.mail.message;
import javax.mail.messagingexception;
import javax.mail.multipart;
import javax.mail.internet.internetaddress;
import javax.mail.internet.mimebodypart;
import javax.mail.internet.mimemessage;
import javax.mail.internet.mimemultipart;
import javax.mail.internet.mimeutility;

import java.util.arraylist;
import java.util.hashmap;
import java.util.list;
import java.util.map;
import java.util.properties;

/**
 * @author tlimited
 * @create 2017-08-17 11:38
 **/
public class sendmailutils {

  // spring的邮件工具类，实现了mailsender和javamailsender接口
  private javamailsenderimpl mailsender;

  /**
   * 初始化邮件发送数据
   * @param host 服务器
   * @param username 发送人
   * @param passwd 发送人密码
   */
  public void setinitdata(string host,string username,string passwd){
     //创建邮件发送服务器
    mailsender = new javamailsenderimpl();
    mailsender.sethost(host);
   // mailsender.setport(465);
    mailsender.setusername(username);
    mailsender.setpassword(passwd);
    //加认证机制
    properties javamailproperties = new properties();
    javamailproperties.put("mail.smtp.auth", true);
    javamailproperties.put("mail.smtp.starttls.enable", true);
    javamailproperties.put("mail.smtp.timeout", 5000);
    mailsender.setjavamailproperties(javamailproperties);
    system.out.println("初始化邮件发送信息完成");
  }
  /**
   * 发送普通文本
   * @param email 对方邮箱地址
   * @param subject 主题
   * @param text 邮件内容
   */
  public void simplemailsend(string email,string subject,string text) {
    //创建邮件内容
    simplemailmessage message=new simplemailmessage();
    message.setfrom(mailsender.getusername());
    message.setto(email);
    message.setsubject(subject);
    message.settext(text);
    //发送邮件
    mailsender.send(message);
    system.out.println("发送成功");
  }

  /**
   * 发送附件,支持多附件
   * //使用javamail的mimemessage，支付更加复杂的邮件格式和内容
    //mimemessages为复杂邮件模板，支持文本、附件、html、图片等。
   * @param email 对方邮箱
   * @param subject 主题
   * @param text 内容
   * @param paths 附件路径，和文件名
   * @throws messagingexception
   */
  public void attachedsend(string email,string subject,string text,map<string,string> paths) throws messagingexception {

    mimemessage message = mailsender.createmimemessage();
    //创建mimemessagehelper对象，处理mimemessage的辅助类
    mimemessagehelper helper = new mimemessagehelper(message, true);
    //使用辅助类mimemessage设定参数
    helper.setfrom(mailsender.getusername());
    helper.setto(email);
    helper.setsubject(subject);
    helper.settext(text);

    if (paths!=null){
      paths.foreach((k,v)->{
         //加载文件资源，作为附件
         filesystemresource file = new filesystemresource(v);
         try {
          //添加附件
           helper.addattachment(k, file);
        } catch (exception e) {
          e.printstacktrace();
        }
      });
    }
    //发送邮件
    mailsender.send(message);
    system.out.println("发送成功");
  }

  /**
  * 发送html文件，支持多图片
  * @param email 对方邮箱
  * @param subject 主题
  * @param text 内容
  * @param paths 富文本中添加用到的路径，一般是图片，或者css,js文件
  * @throws messagingexception
  */
  public void richcontentsend(string email,string subject,string text,map<string,string> paths) throws messagingexception {

    mimemessage message = mailsender.createmimemessage();
    mimemessagehelper helper = new mimemessagehelper(message, true);

    helper.setfrom(mailsender.getusername());
    helper.setto(email);
    helper.setsubject(subject);
    //第二个参数true，表示text的内容为html，然后注意<img/>标签，src='cid:file'，'cid'是contentid的缩写，'file'是一个标记，
    //需要在后面的代码中调用mimemessagehelper的addinline方法替代成文件
    helper.settext(text,true);
    //文件地址相对应src目录
    // classpathresource file = new classpathresource("logo.png");

    if (paths!=null){
      paths.foreach((k,v)->{
         //文件地址对应系统目录
         filesystemresource file = new filesystemresource(v);
         try {
          helper.addinline(k, file);
        } catch (exception e) {
          e.printstacktrace();
        }
      });
    }
    mailsender.send(message);
    system.out.println("发送成功");
  }

  /**
   * 群发多人，且多附件
   * @param mailto 多人邮件地址
   * @param subject 主题
   * @param text 内容
   * @param filepath 文件路径
   * @throws exception
   */
  public void sendbatchmailwithfile(string[] emails, string subject, string text, string[] filepath) throws exception { 

    mimemessage mimemessage = mailsender.createmimemessage(); 
    mimemessagehelper messagehelper = new mimemessagehelper(mimemessage, true, "utf-8"); 
    messagehelper.setfrom(new internetaddress(mimeutility.encodetext(mailsender.getusername()))); 
    messagehelper.setsubject(subject); 
    if (filepath != null) { 
      bodypart mdp = new mimebodypart();// 新建一个存放信件内容的bodypart对象 
      mdp.setcontent(text, "text/html;charset=utf-8");// 给bodypart对象设置内容和格式/编码方式 
      multipart mm = new mimemultipart();// 新建一个mimemultipart对象用来存放bodypart对象 
      mm.addbodypart(mdp);// 将bodypart加入到mimemultipart对象中(可以加入多个bodypart) 
      // 把mm作为消息对象的内容 
      mimebodypart filepart; 
      filedatasource filedatasource; 
      // 逐个加入附件 
      for (int j = 0; j < filepath.length; j++) { 
        filepart = new mimebodypart(); 
        filedatasource = new filedatasource(filepath[j]); 
        filepart.setdatahandler(new datahandler(filedatasource)); 
        try { 
          filepart.setfilename(mimeutility.encodetext(filedatasource.getname())); 
        } catch (exception e) { 
          e.printstacktrace(); 
        } 
        mm.addbodypart(filepart); 
      } 
      mimemessage.setcontent(mm); 
    } else { 
      messagehelper.settext(text, true); 
    } 

    list<internetaddress> list = new arraylist<internetaddress>();// 不能使用string类型的类型，这样只能发送一个收件人 
    for (int i = 0; i < emails.length; i++) { 
      list.add(new internetaddress(emails[i])); 
    } 
    internetaddress[] address = list.toarray(new internetaddress[list.size()]); 

    mimemessage.setrecipients(message.recipienttype.to, address); 
    mimemessage = messagehelper.getmimemessage(); 

    mailsender.send(mimemessage);  
    system.out.println("发送成功");
  } 


  public static void main(string[] args) throws exception
  {
    sendmailutils test = new sendmailutils();
    //测试发送普通文本
   // test.setinitdata("smtp.qq.com","[e-mail]","123456");
    test.setinitdata("smtp.163.com","[e-mail]","1234");
    test.simplemailsend("[e-mail]","测试","测试能不能发邮件！！！");

    //测试发送附件
    /* test.setinitdata("smtp.163.com","[e-mail]","1234");
    map<string,string> map = new hashmap<string, string>();
    map.put("test12.xls", "d:\\tomcat8\\apache-tomcat-8.0.29\\test12.xls");
    map.put("wsdl.rar", "d:\\wsdl.rar");
    test.attachedsend("[e-mail]","hello attachment","this is a mail with attachment",map);
    */

    //测试发送富文本（html文件）
   /* test.setinitdata("smtp.163.com","[e-mail]","1234");
    string text = "<body><p style='color:red;'>hello html email</p><img src='cid:file'/></body>";
    map<string,string> map = new hashmap<string, string>();
    map.put("file", "e:\\1f7827.jpg");
    test.richcontentsend("[e-mail]","邮件标题",text,map);*/

    //测试群发多人多附件
    test.setinitdata("smtp.163.com","[e-mail]","1234");
    string [] address = {"[e-mail]","[e-mail]"};
    string [] filepath = {"d:\\tomcat8\\apache-tomcat-8.0.29\\test12.xls", "d:\\wsdl.rar"};
    test.sendbatchmailwithfile(address, "群发多文件", "实时", filepath);
  }

}

以上就是本文的全部内容，希望对大家的学习有所帮助，也希望大家多多支持。