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package com.sub.utils;
import javax.activation.DataHandler;
import javax.activation.DataSource;
import javax.activation.FileDataSource;
import javax.mail.*;
import javax.mail.internet.*;
import java.util.List;
import java.util.Properties;
public class MailUtil implements Runnable {
private String email;// 收件人邮箱
private String content;//内容
private String filename;//附件
private String subject;//主题
private Boolean ishtml;//是否为html代码
public String getEmail() {
return email;
}
public void setEmail(String email) {
this.email = email;
}
public String getContent() {
return content;
}
public void setContent(String content) {
this.content = content;
}
public String getFilename() {
return filename;
}
public void setFilename(String filename) {
this.filename = filename;
}
public String getSubject() {
return subject;
}
public void setSubject(String subject) {
this.subject = subject;
}
public Boolean getIshtml() {
return ishtml;
}
public void setIshtml(Boolean ishtml) {
this.ishtml = ishtml;
}
public MailUtil(Builder builder) {
this.content = builder.content;
this.filename = builder.filename;
this.subject = builder.subject;
this.email = builder.email;
this.ishtml = builder.ishtml;
}
public static class Builder{
private String email;// 收件人邮箱
private String content="";//内容
private String filename=null;//附件
private String subject="这是邮件";//主题
private Boolean ishtml = false;//是否为html代码
public Builder setContent(String content_b){
this.content = content_b;
return this;
}
public Builder setFilename(String filename_b){
this.filename = filename_b;
return this;
}
public Builder setSubject(String subject_b){
this.subject = subject_b;
return this;
}
public Builder isHtml(){
this.ishtml = true;
return this;
}
public MailUtil buildWithEmail(String email_b) {
this.email = email_b;
return new MailUtil(this);
}
}
public void run() {
String from = "******";// 发件人电子邮箱
String host = "smtp.ym.163.com"; // 指定发送邮件的主机
Properties properties = System.getProperties();// 获取系统属性
properties.setProperty("mail.transport.protocol", "smtp");
properties.setProperty("mail.smtp.host", host);// 设置邮件服务器
properties.setProperty("mail.smtp.auth", "true");// 打开认证
try {
//QQ邮箱需要下面这段代码，163邮箱不需要
// MailSSLSocketFactory sf = new MailSSLSocketFactory();
// sf.setTrustAllHosts(true);
// properties.put("mail.smtp.ssl.enable", "true");
// properties.put("mail.smtp.ssl.socketFactory", sf);
//获取默认session对象
Session session = Session.getDefaultInstance(properties, new Authenticator() {
public PasswordAuthentication getPasswordAuthentication() {
return new PasswordAuthentication("****", "****"); // 发件人邮箱账号、授权码
}
});
// 创建邮件对象
Message message = new MimeMessage(session);
// 设置发件人
message.setFrom(new InternetAddress(from));
// 设置接收人
message.addRecipient(Message.RecipientType.TO, new InternetAddress(email));
// 设置邮件主题
message.setSubject(subject);
// 创建消息部分
BodyPart messageBodyPart = new MimeBodyPart();
// 消息
if (ishtml){
messageBodyPart.setContent(content,"text/html;charset=UTF-8");
}else {
messageBodyPart.setText(content);
}
// 创建多重消息
Multipart multipart = new MimeMultipart();
// 设置文本消息部分
multipart.addBodyPart(messageBodyPart);
// 附件部分
if (filename!=null){
BodyPart messageAttachmentPart = new MimeBodyPart();
DataSource source = new FileDataSource(filename);
messageAttachmentPart.setDataHandler(new DataHandler(source));
messageAttachmentPart.setFileName(filename);
multipart.addBodyPart(messageAttachmentPart);
}
message.setContent(multipart);
// 发送邮件
Transport.send(message);
} catch (Exception e) {
e.printStackTrace();
LogUtil.error("邮件发送失败"+subject,e);
}
}
public static StringBuilder
getTableStart(String head[],String title){
StringBuilder table=new StringBuilder();
table.append(" <html>");
table.append(" <head>");
table.append(" <title> New Document </title>");
table.append(" </head>");
table.append(" ");
table.append(" <style type=\"text/css\">");
table.append(" table { ");
table.append(" margin: 10px 0 30px 0;");
table.append(" font-size: 13px;");
table.append(" }");
table.append(" ");
table.append(" table caption { ");
table.append(" text-align:left;");
table.append(" }");
table.append(" ");
table.append(" table tr th { ");
table.append(" background: #3B3B3B;");
table.append(" color: #FFF;");
table.append(" padding: 7px 4px;");
table.append(" text-align: left;");
table.append(" }");
table.append(" ");
table.append(" table tr td { ");
table.append(" color: #FFF;");
table.append(" padding: 7px 4px;");
table.append(" text-align: left;");
table.append(" }");
table.append(" ");
table.append(" table tr.odd{");
table.append(" background-color:#cef;");
table.append(" }");
table.append(" ");
table.append(" table tr.even{");
table.append(" background-color:#ffc;");
table.append(" }");
table.append(" ");
table.append(" table tr td { ");
table.append(" color: #47433F;");
table.append(" border-top: 1px solid #FFF;");
table.append(" }");
table.append(" </style>");
table.append(" ");
table.append(" <body>");
table.append("<h2>"+title+"<h2/>");
table.append(" <table style=\"width:500px; border-spacing:0;\"> ");
table.append(" <tr> ");
for (int i=0;i<head.length;i++){
table.append(" <th>"+head[i]+"</th> ");
}
table.append(" </tr> ");
return table;
}
public static StringBuilder getTableEnd(StringBuilder table) {
table.append(" </table> ");
table.append(" </body>");
table.append(" </html>");
return table;
}
}测试
package com.sub.utils;
import com.sub.model.Employee;
import java.util.ArrayList;
import java.util.List;
public class Test {
@org.junit.Test
public void start(){
String head[] = {"账号","密码"};
List<Employee> employees = new ArrayList<Employee>(2);
Employee employee = new Employee();
employee.setName("小明");
employee.setPassword("123");
employees.add(employee);
employee.setName("小张");
employee.setPassword("456");
employees.add(employee);
StringBuilder tableStart = MailUtil.getTableStart(head,"账号密码");
for (int i=0;i<employees.size();i++){
String tr = "<tr class=\"odd\">";
if (i%2==1){
tr = "<tr class=\"even\">";
}
tableStart.append(" "+tr+" ");
tableStart.append(" <td>"+employees.get(i).getName()+"</td> ");
tableStart.append(" <td>"+employees.get(i).getPassword()+"</td> ");
tableStart.append(" </tr> ");
}
StringBuilder table = MailUtil.getTableEnd(tableStart);
MailUtil mail = new MailUtil.Builder()
.setContent(table.toString())
.isHtml()
// .setFilename("") 附件路径
.buildWithEmail("*****");//收件人邮箱
mail.run();
}
}
接收到的邮件
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