struts2集成j-avamail发邮件示例详解

2019-11-02 15:05:45

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这篇文章主要介绍了struts2集成javamail发邮件示例,需要的朋友可以参考下

一、代码预览这两天在做struts2上的邮件发送。以前的项目有用到spring，用spring提供的邮件支持类很方便可以完成这个功能，但是现在只用struts2的话，就碰到了一系列的问题。请先将自己下载的 mail.jar，及activation.jar加入到classpath 代码如下:package com.nerve.cloudoffice.common.util; import java.util.List;import java.util.Properties; import javax.activation.DataHandler;import javax.activation.FileDataSource;import javax.mail.Address;import javax.mail.BodyPart;import javax.mail.Message;import javax.mail.Multipart;import javax.mail.Session;import javax.mail.Transport;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; public class EMailSender { /** * 向用户发送邮件 */ private static final long serialVersionUID = 1L; private MimeMessage mimeMsg; // MIME邮件对象 private Session session; // 邮件会话对象 private Properties props; // 系统属性 private boolean needAuth = false; // smtp是否需要认证 private String username = ""; // smtp认证用户名和密码 private String password = ""; private Multipart mp; // Multipart对象,邮件内容,标题,附件等内容均添加到其中后再生成 private String log; public EMailSender() { } public EMailSender(String smtp) { setSmtpHost(smtp); createMimeMessage(); } public void setSmtpHost(String hostName) { System.out.println("设置系统属性：mail.smtp.host = " + hostName); if (props == null) props = System.getProperties(); // 获得系统属性对象 props.put("mail.smtp.host", hostName); // 设置SMTP主机 props.put("mail.smtp.localhost", "localHostAdress"); } public boolean createMimeMessage() { try { System.out.println("准备获取邮件会话对象！"); session = Session.getDefaultInstance(props, null); // 获得邮件会话对象 } catch (Exception e) { log = "获取邮件会话对象时发生错误！" + e.toString(); System.err.println(log); return false; } try { mimeMsg = new MimeMessage(session); // 创建MIME邮件对象 mp = new MimeMultipart(); // mp 一个multipart对象 // Multipart is a container that holds multiple body parts. return true; } catch (Exception e) { log = "创建MIME邮件对象失败！" + e; System.err.println(log); return false; } } public void setNeedAuth(boolean need) { System.out.println("设置smtp身份认证：mail.smtp.auth = " + need); if (props == null) props = System.getProperties(); if (need) { props.put("mail.smtp.auth", "true"); } else { props.put("mail.smtp.auth", "false"); } } public void setNamePass(String name, String pass) { System.out.println("程序得到用户名与密码"); username = name; password = pass; } public boolean setSubject(String mailSubject) { System.out.println("设置邮件主题！"); try { mimeMsg.setSubject(MimeUtility.encodeText(mailSubject,"utf-8","B")); return true; } catch (Exception e) { log = "设置邮件主题发生错误！"+e; System.err.println(log); return false; } } public boolean setBody(String mailBody) { try { System.out.println("设置邮件体格式"); BodyPart bp = new MimeBodyPart(); // 转换成中文格式 bp.setContent( "<meta http-equiv=Content-Type content=text/html; charset=utf-8>" + mailBody, "text/html;charset=utf-8"); mp.addBodyPart(bp); return true; } catch (Exception e) { log = "设置邮件正文时发生错误！" + e; System.err.println(log); return false; } } public boolean setFiles(List<String> files){ try{ for(String s:files){ MimeBodyPart mbp=new MimeBodyPart(); FileDataSource fds=new FileDataSource(s); //得到数据源 mbp.setDataHandler(new DataHandler(fds)); //得到附件本身并至入BodyPart mbp.setFileName(fds.getName()); //得到文件名同样至入BodyPart mp.addBodyPart(mbp); } return true; }catch(Exception e){ log = "增加附件时出错："+e; e.printStackTrace(); return false; } } public boolean addFile(String path, String name){ try{ MimeBodyPart mbp=new MimeBodyPart(); FileDataSource fds=new FileDataSource(path); //得到数据源 mbp.setDataHandler(new DataHandler(fds)); //得到附件本身并至入BodyPart mbp.setFileName(MimeUtility.encodeText(name,"utf-8","B")); mp.addBodyPart(mbp); return true; }catch(Exception e){ log = "增加附件时出错："+e; e.printStackTrace(); return false; } } public boolean setFrom(String from) { System.out.println("设置发信人！"); try { mimeMsg.setFrom(new InternetAddress(from)); // 设置发信人 return true; } catch (Exception e) { log = "设置发信人出错:"+e; return false; } } public boolean setTo(String to) { System.out.println("设置收信人"); if (to == null) return false; try { mimeMsg.setRecipients(Message.RecipientType.TO, InternetAddress .parse(to)); return true; } catch (Exception e) { return false; } } public boolean setCopyTo(String copyto) { if (copyto == null) return false; try { mimeMsg.setRecipients(Message.RecipientType.CC, (Address[]) InternetAddress.parse(copyto)); return true; } catch (Exception e) { return false; } } public boolean sendout() { try { mimeMsg.setContent(mp); mimeMsg.saveChanges(); System.out.println("正在发送邮件...."); Session mailSession = Session.getInstance(props, null); Transport transport = mailSession.getTransport("smtp"); transport.connect((String) props.get("mail.smtp.host"), username, password); transport.sendMessage(mimeMsg, mimeMsg .getRecipients(Message.RecipientType.TO)); // transport.send(mimeMsg); System.out.println("发送邮件成功！");

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