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
复制代码 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！");
transport.close();
return true;
} catch (Exception e) {
log = "邮件发送失败！" + e;
System.err.println(log);
return false;
}
}
public String getLog(){
return log;
}
}
二、问题总结
2.1 本地执行时报错