java 邮件系统

最新推荐文章于 2022-06-04 08:25:30 发布

原创最新推荐文章于 2022-06-04 08:25:30 发布 · 1.8k 阅读

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#java 邮件 mail

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package com.base;
import java.util.Iterator;
import java.util.LinkedList;
import java.util.List;
import java.util.Properties;
import javax.activation.DataHandler;
import javax.activation.FileDataSource;
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 EmailHandle {

private MimeMessage mimeMsg; //邮件对象

private Session session; //发送邮件的Session会话

private Properties props;//邮件发送时的一些配置信息的一个属性对象

private String sendUserName; //发件人的用户名

private String sendUserPass; //发件人密码

private Multipart mp;//附件添加的组件

private List files = new LinkedList();//存放附件文件

public EmailHandle(String smtp) {
sendUserName = "";
sendUserPass = "";
setSmtpHost(smtp);// 设置邮件服务器
createMimeMessage(); // 创建邮件
}

public void setSmtpHost(String hostName) {
if (props == null)
props = System.getProperties();
props.put("mail.smtp.host", hostName);
}

public boolean createMimeMessage(){
try {
// 用props对象来创建并初始化session对象
session = Session.getDefaultInstance(props, null);
} catch (Exception e) {
System.err.println("获取邮件会话对象时发生错误！" + e);
return false;
}
try {
mimeMsg = new MimeMessage(session); // 用session对象来创建并初始化邮件对象
mp = new MimeMultipart();// 生成附件组件的实例
} catch (Exception e) {
return false;
}
return true;
}
/**
* 设置SMTP的身份认证
*/
public void setNeedAuth(boolean need) {
if (props == null)
props = System.getProperties();
if (need)
props.put("mail.smtp.auth", "true");
else
props.put("mail.smtp.auth", "false");
}

/**
* 进行用户身份验证时，设置用户名和密码
*/
public void setNamePass(String name, String pass) {
sendUserName = name;
sendUserPass = pass;
}
/**
* 设置邮件主题
* @param mailSubject
* @return
*/
public boolean setSubject(String mailSubject) {
try {
mimeMsg.setSubject(mailSubject);
} catch (Exception e) {
return false;
}
return true;
}
/**
* 设置邮件内容,并设置其为文本格式或HTML文件格式，编码方式为UTF-8
* @param mailBody
* @return
*/
public boolean setBody(String mailBody) {
try {
BodyPart bp = new MimeBodyPart();
bp.setContent("<meta http-equiv=Content-Type content=text/html; charset=UTF-8>"+ mailBody, "text/html;charset=UTF-8");
// 在组件上添加邮件文本
mp.addBodyPart(bp);
} catch (Exception e) {
System.err.println("设置邮件正文时发生错误！" + e);
return false;
}
return true;
}
/**
* 增加发送附件
* @param filename
* 邮件附件的地址，只能是本机地址而不能是网络地址，否则抛出异常
* @return
*/
public boolean addFileAffix(String filename) {
try {
BodyPart bp = new MimeBodyPart();
FileDataSource fileds = new FileDataSource(filename);
bp.setDataHandler(new DataHandler(fileds));
bp.setFileName(MimeUtility.encodeText(fileds.getName(),"utf-8",null)); // 解决附件名称乱码
mp.addBodyPart(bp);// 添加附件
files.add(fileds);
} catch (Exception e) {
System.err.println("增加邮件附件：" + filename + "发生错误！" + e);
return false;
}
return true;
}
public boolean delFileAffix(){
try {
FileDataSource fileds = null;
for(Iterator it = files.iterator() ;it.hasNext();) {
fileds = (FileDataSource)it.next();
if(fileds != null && fileds.getFile() != null){
fileds.getFile().delete();
}
}
}catch (Exception e) {
return false;
}
return true;
}
/**
* 设置发件人地址
* @param from
* 发件人地址
* @return
*/
public boolean setFrom(String from) {
try {
mimeMsg.setFrom(new InternetAddress(from));
} catch (Exception e) {
return false;
}
return true;
}
/**
* 设置收件人地址
* @param to收件人的地址
* @return
*/
public boolean setTo(String to) {
if (to == null)
return false;
try {
mimeMsg.setRecipients(Message.RecipientType.TO,InternetAddress.parse(to));
} catch (Exception e) {
return false;
}
return true;
}
/**
* 发送附件
* @param copyto
* @return
*/
public boolean setCopyTo(String copyto) {
if (copyto == null)
return false;
try {
mimeMsg.setRecipients(javax.mail.Message.RecipientType.CC,InternetAddress.parse(copyto));
} catch (Exception e) {
return false;
}
return true;
}
/**
* 发送邮件
* @return
*/
public boolean sendEmail() throws Exception{
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");
// 连接邮件服务器并进行身份验证
transport.connect((String) props.get("mail.smtp.host"), sendUserName,sendUserPass);
// 发送邮件
transport.sendMessage(mimeMsg, mimeMsg.getRecipients(Message.RecipientType.TO));
System.out.println("发送邮件成功！");
transport.close();
return true;
}

}

《====================================================================================================》

package com.base;
import com.base.EmailHandle;
public class SendEmail {

static String hostName = "smtp.***.com";
static String fromAddress = "********";
static String fromAPass = "****";
///static String attachmentPath = (System.getProperty("user.dir")+"/WebRoot/jasperReport/PurchaseOrders.pdf").replace("\\", "/");
public static void send(String subject, String toaddress,String content)throws Exception {
String attachmentPath = (System.getProperty("user.dir").replace("bin", "")+"webapps/newweb/jasperReport/PurchaseOrders.pdf").replace("\\", "/");
System.out.println("附件文件路径=="+attachmentPath);
EmailHandle emailHandle = new EmailHandle(hostName);
emailHandle.setFrom(fromAddress);
emailHandle.setNeedAuth(true);
emailHandle.setSubject(subject);
emailHandle.setBody(content);
emailHandle.setTo(toaddress);
emailHandle.addFileAffix(attachmentPath);// 附件文件路径
emailHandle.setNamePass(fromAddress, fromAPass);
emailHandle.sendEmail();

}

// public static void main(String[] args) {
// try {
// SendEmail.send("带附件的邮件测试","*********@qq.com","测试内容");
// } catch (Exception e) {
// // TODO Auto-generated catch block
// e.printStackTrace();
// }
// }
}

《=========================================================================================》

SendEmail.send(poNumber.getUsername()+" 附件是采购订单 ",poNumber.getEmail().trim(),"采购订单 ");// 标题邮件地址文本

注意在web下运行时会报错：

Exception in thread "Timer-0" java.lang.NoClassDefFoundError: javax/mail/BodyPart
at com.base.SendEmail.send(SendEmail.java:13)
at com.action.SendMailSupplier.sendEmail(SendMailSupplier.java:56)
at com.action.SendMailSupplier.run(SendMailSupplier.java:79)
at java.util.TimerThread.mainLoop(Timer.java:512)
at java.util.TimerThread.run(Timer.java:462)
Caused by: java.lang.ClassNotFoundException: javax.mail.BodyPart
at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1713)
at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1558)

at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:320)
... 5 more