java 发送邮件实例
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import java.io.BufferedReader;
import java.io.File;
import java.io.FileReader;
import java.io.UnsupportedEncodingException;
import java.util.ArrayList;
import java.util.Date;
import java.util.List;
import javax.mail.Message;
import javax.mail.MessagingException;
import javax.mail.Transport;
import javax.mail.internet.InternetAddress;
import javax.mail.internet.MimeMessage;
public class SendMail implements Runnable {
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?private String to;???//接收方
???
?private String subject;??//标题
???
?private String content;??//邮件内容
?private Thread thread;??//定义线程
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?private String sname;??//邮件署名
?private List attach;
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?private String type = "text/html"; //or text/plain?发送邮件的格式
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?private String smtpHost;?//邮件服务器?smtp.163.com等
?private String emailFrom;?//发送方邮箱
?private String fromPwd;??//密码
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?//带模板的邮件
?public SendMail(String to, String subject, String content,String fileName) {
??try{
???if(to!=null && !"".equals(to)){
????thread = new Thread(this);
????this.to = to;
????this.subject = subject;
??
????attach = new ArrayList();
???
?????? //读取文件模板
???
????File file=new File(fileName);
????BufferedReader br = new BufferedReader(new FileReader(file));
????
????StringBuffer sb=new StringBuffer();
????while (br.ready()) {
?????sb.append(br.readLine());
?????sb.append("\r\n");
????}?
????//賛换模块中的##content变量内容为content
????this.content=sb.toString().replaceAll("##content",content);
???}
??}catch(Exception e){
???e.printStackTrace();
??}
??
??
?}?
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?//带上署名和模块的邮件
?public SendMail(String sname,String to, String subject, String content,String fileName) {
??try{
???thread = new Thread(this);
???this.to = to;
???this.subject = subject;
???this.sname=sname;
???attach = new ArrayList();
???
???//读取文件模板
??
???File file=new File(fileName);
???BufferedReader br = new BufferedReader(new FileReader(file));
???StringBuffer sb=new StringBuffer();
???while (br.ready()) {
????sb.append(br.readLine());
???}?
???this.content=sb.toString().replaceAll("##caicainet_content",content);
???
??}catch(Exception e){
???e.printStackTrace();
??}
??
??
?}?
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?public SendMail(String sname,String to, String subject, String content,int typeId) {
??thread = new Thread(this);
??this.to = to;
??this.subject = subject;
??this.sname=sname;
??attach = new ArrayList();
??this.content=content;
??this.type = "text/plain";
?}?
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?public void run() {
??try {
???send();
??} catch (Exception e) {
???e.printStackTrace();
??}
?}
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?public void start() {
??thread.start();
?}
?public boolean send() throws Exception {
??return send(to, subject, content);
?}
?private boolean send(String to, String subject, String content){
??boolean blnResult = false;
??InternetAddress[] address = null;
??//mailserver邮件服务器? Form 发送邮件的邮箱? pwd密码
??//此处三个参数可能通过数据库或.properties等方式来获取，方便后期的管理与设置
??String mailserver = "smtp.sina.com";
??String From = "";//发送方的邮箱
??String pwd = "";//密码
??
??if(smtpHost!=null && !"".equals(smtpHost))
???mailserver=smtpHost;
??if(emailFrom!=null && !"".equals(emailFrom))
???From=emailFrom;
??if(fromPwd!=null && !"".equals(fromPwd))
???pwd=fromPwd;
??
??if(smtpHost!=null && "nopass".equals(smtpHost))
??{
???smtpHost="";
???System.out.println("发送给"+to+"失败！原因是smtp地址不正确");
???return false;
??}
??
??
??
??String messageText = content;
??boolean sessionDebug = false;
??Date d1=new Date();
??try {
???// 设定所要用的Mail 服务器和所使用的传输协议
???java.util.Properties props = System.getProperties();
???props.put("mail.host", mailserver);
???props.put("mail.transport.protocol", "smtp");
???props.put("mail.smtp.auth", "true");//指定是否需要SMTP验证
???// 产生新的Session 服务
???javax.mail.Session mailSession = javax.mail.Session.getDefaultInstance(props, null);
???mailSession.setDebug(sessionDebug);
???Message msg = new MimeMessage(mailSession);
???if(sname!=null && !"".equals(sname))
???{
????// 设定发邮件的人
????msg.setFrom(new InternetAddress(From,sname));
???}
???else
???{
????//带署名的邮件
????msg.setFrom(new InternetAddress(From,"刘海洋"));
???}
???
???if(sname!=null && "mail".equals(sname))
???{
????msg.setFrom(new InternetAddress(From,""));
???}
???
???// 设定收信人的信箱
???address = InternetAddress.parse(to, false);
???msg.setRecipients(Message.RecipientType.TO, address);
???// 设定信中的主题?
???msg.setSubject(subject);
???// 设定送信的时间
???msg.setSentDate(new Date());
???if("text/html".equals(this.type))
???{
????????msg.setContent(messageText, type + ";charset=GB2312");
???}
???else
???{
????msg.setText(messageText);
???}
???
???Transport transport = mailSession.getTransport("smtp");
???transport.connect(mailserver, From, pwd);
???transport.sendMessage(msg, msg.getAllRecipients());
???transport.close();
???Date d2=new Date();
???System.out.println("发送给"+to+"成功！耗时"+(d2.getTime()-d1.getTime())+"毫秒,发送方："+From);
???blnResult=true;
???
??} catch (MessagingException mex) {
???mex.printStackTrace();
???blnResult=false;
??} catch (UnsupportedEncodingException e) {
???e.printStackTrace();
??}
??
??return blnResult;
?}
??public void setTo(String to) {
??this.to = to;
?}
?public String getTo() {
??return this.to;
?}
?public void setSubject(String subject) {
??this.subject = subject;
?}
?public String getSubject() {
??return this.subject;
?}
?public void setContent(String content) {
??this.content = content;
?}
?public String getContent() {
??return this.content;
?}
?public void addAttach(String file) {
??attach.add(file);
?}
?public boolean isAttach() {
??return attach != null && attach.size() > 0;
?}
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?public static void main(String[] args) {
??try {
???//普通的文字邮件
??SendMail sendMail=new SendMail("王大河","**@163.com", "试试", "没时间那",1);
??sendMail.start();
???
???
???//带模版的邮件
???String path = "D:/project/tongji/WebRoot/template/email.html"; //获取存放路径?
???
???String chtml="";
???SendMail sendMail=new SendMail("**@163.com","上哪去？！",chtml,path);
???sendMail.start();
??} catch (Exception e) {
???e.printStackTrace();
??}
?}
}
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转自：http://blog.sina.com.cn/s/blog_4ffef4520100dbi3.html
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