关于邮箱问题
我想做个邮箱用smtp和POP3，但是发送时候出现
javax.mail.NoSuchProviderException: smtp
at javax.mail.Session.getService(Session.java:768)
at javax.mail.Session.getTransport(Session.java:708)
at javax.mail.Session.getTransport(Session.java:651)
at javax.mail.Session.getTransport(Session.java:631)
at bb.Send.main(Send.java:22)
我的源代码是
package bb;import java.util.Date;import java.util.Properties;import javax.mail.Message;import javax.mail.Provider;import javax.mail.Session;import javax.mail.Transport;import javax.mail.Message.RecipientType;import javax.mail.internet.InternetAddress;import javax.mail.internet.MimeMessage;public class Send { public static void main(String[] arg){ Properties properties=System.getProperties(); properties.put("mail.smtp.auth", "true"); properties.put("mail.smtp.host", "127.0.0.1"); Session session=Session.getInstance(properties); try{ Transport transport=session.getTransport("smtp"); transport.connect("127.0.0.1", "bb","0"); Message txMsg=new MimeMessage(session); txMsg.setSubject("aaaaa"); txMsg.setFrom(new InternetAddress("bb")); txMsg.setRecipient(Message.RecipientType.TO,new InternetAddress("aa")); txMsg.setText("ccccccccc"); txMsg.setSentDate(new Date()); transport.sendMessage(txMsg, txMsg.getRecipients(Message.RecipientType.TO)); transport.close(); }catch(Exception e){ e.printStackTrace(); } System.out.print("---------发送完毕---------"); }}
setSmtpHost(smtp);
createMimeMessage();
}
/**
*
* 设置SMTP主机
*
* @param hostName
*/
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);
}
/**
*
* @return boolean
*/
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) {
System.err.println("获取邮件会话对象时发生错误！" + e);
return false;
}
System.out.println("准备创建MIME邮件对象！");
try {
mimeMsg = new MimeMessage(session); // 创建MIME邮件对象
mp = new MimeMultipart();
return true;
}
catch (Exception e) {
System.err.println("创建MIME邮件对象失败！" + e);
return false;
}
}
/**
*
*设置smtp身份认证
*
* @param need
* boolean
*/
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");
}
}
/**
*
* 设置用户密码
*/
public void setNamePass(String name, String pass) {
username = name;
password = pass;
}
/**
*
* 设置邮件主题
*
* @param mailSubject
*
* @return
*/
public boolean setSubject(String mailSubject) {
System.out.println("设置邮件主题！");
try {
mimeMsg.setSubject(mailSubject);
return true;
}
catch (Exception e) {
System.err.println("设置邮件主题发生错误！");
return false;
}
}
/**
*
* 设置邮件内容
*/
public boolean setBody(String mailBody) {
try {
BodyPart bp = new MimeBodyPart();
bp.setContent("" + mailBody, "text/html;charset=GB2312");
mp.addBodyPart(bp);
return true;
}
catch (Exception e) {
System.err.println("设置邮件正文时发生错误！" + e);
return false;
}
}
/**
*
* 设置邮件附件
*
* @param filename
* 完整的文件路径名
*
* @return
*/
public boolean addFileAffix(String filename) {
try {
BodyPart bp = new MimeBodyPart();
FileDataSource fileds = new FileDataSource(filename);
System.out.println("a");
bp.setDataHandler(new DataHandler(fileds));
System.out.println("b");
bp.setFileName(fileds.getName());
System.out.println("c");
mp.addBodyPart(bp);
System.out.println("d");
return true;
}
catch (Exception e) {
System.err.println("增加邮件附件：" + filename + "发生错误！" + e);
return false;
}
}
/**
*
* 设置发信人
*
* @param from
*
* @return
*/
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)
{
return false;
}
}
/**
*
* 邮件接受人
*
* @param to
*
* @return
*/
public boolean setTo(String to) {
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;
}
}
/**
*
* 邮件发送
*
* @return
*/
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)
{
System.err.println("邮件发送失败！" + e);
return false;
}
}
/**
*
* @param args
*/
public static void main(String[] args) {
String mailbody = ""
+ "hi:Luciferoffans 最近有什么好看的电影吗？平时也懒得去下它们了，我现在一直在期待小罗伯特唐丽的《钢铁侠2》5月7号全球上映，一起去电影院去看啊？呵呵~~~~";
MailMessage themail = new MailMessage();
themail.sendMail("smtp.163.com");
themail.setNeedAuth(true);
/* 上传一个附件 */
File file= new File("D:/Program Files/11.xlsx");
String filename=file.getPath();
System.out.println(filename);
themail.addFileAffix(filename);
/*上传多个附件*/
/*
List<String> list = new ArrayList<String>();
File f = new File("D:/Program Files");
File[] subfile = f.listFiles();
for (File item : subfile) {
boolean x = item.getName().endsWith("xlsx");
if (x)
{
list.add(item.getAbsolutePath());
}
}
System.out.println(list);
for (String itam : list)
{
System.out.println(itam);
if (themail.addFileAffix(itam) == false)
return;
}
*/
if (themail.setSubject("努力学技术，努力挣钱") == false)
return; // 邮件主题
if (themail.setBody(mailbody) == false)
return;
if (themail.setTo("laolangtou@163.com") == false)
return; // 接受邮件地址
if (themail.setFrom("laolangtou@163.com") == false)
return; // 发送邮件地址
/* if(themail.addFileAffix("c:\\boot.ini") == false) return; */
themail.setNamePass("laolangtou@163.com", "123456");
if (themail.sendout() == false)
return;
}
}
------解决方案--------------------
new InternetAddress("aa"));
这里有问题吧
[解决办法]
邮件基本常识问题
你本机没有smtp服务，你调用smtp发送怎么可能成功
你可以借用其他的smtp服务器 ，比如 163，gmail的 。
javamail 中的api只给你提供了发送邮件的动作，至于怎么发送出去的，是需要smtp服务来进行的