java结合email实现自动推送功能
1、获取表中最后一条数据
publicstaticStringdemo()throwsSQLException{
Stringsql="select*FROMbaoxiuORDERBYidDESCLIMIT0,1;";
PreparedStatementptmt=conn.prepareStatement(sql);
ResultSetrs=ptmt.executeQuery();
Stringstr=null;
if(rs.next()){
str=rs.getString("bt");
}
returnstr;
}
2、使用模糊查询，获取符合条件的所有数据
publicstaticListgetBaoX(Stringbt)throwsSQLException{ Stringsql="selectbt,`user`.cardid,phoneFROMbaoxiu,`user`WHEREbaoxiu.cardid=`user`.cardidANDbtLIKE'%"+bt+"%'"; PreparedStatementptmt=conn.prepareStatement(sql); ResultSetrs=ptmt.executeQuery(); List list=newArrayList<>(); while(rs.next()){ DuibiModelduibi=newDuibiModel(); duibi.setBt(rs.getString("bt")); duibi.setCardid(rs.getString("cardid")); duibi.setPhone(rs.getString("phone")); list.add(duibi); } returnlist; }
3、Java发送邮件
importjavax.mail.Authenticator;
importjavax.mail.PasswordAuthentication;
publicclassAuthextendsAuthenticator{
privateStringusername="";
privateStringpassword="";
publicAuth(Stringusername,Stringpassword){
this.username=username;
this.password=password;
}
publicPasswordAuthenticationgetPasswordAuthentication(){
returnnewPasswordAuthentication(username,password);
}
}
importjava.util.Properties;
importjavax.mail.Message;
importjavax.mail.Session;
importjavax.mail.Transport;
importjavax.mail.internet.InternetAddress;
importjavax.mail.internet.MimeMessage;
publicclassSendMail{
privatePropertiesprops;//系统属性
privateSessionmailSession;//邮件会话对象
privateMimeMessagemimeMsg;//MIME邮件对象
publicSendMail(StringSMTPHost,StringPort,StringMailUsername,StringMailPassword){
Authau=newAuth(MailUsername,MailPassword);
//设置系统属性
props=java.lang.System.getProperties();//获得系统属性对象
props.put("mail.smtp.host",SMTPHost);//设置SMTP主机
props.put("mail.smtp.port",Port);//设置服务端口号
props.put("mail.smtp.auth","true");//同时通过验证
//获得邮件会话对象
mailSession=Session.getInstance(props,au);
}
publicbooleansendingMimeMail(StringMailFrom,StringMailTo,
StringMailCopyTo,StringMailBCopyTo,StringMailSubject,
StringMailBody){
try{
//创建MIME邮件对象
mimeMsg=newMimeMessage(mailSession);
//设置发信人
mimeMsg.setFrom(newInternetAddress(MailFrom));
//设置收信人
if(MailTo!=null){
mimeMsg.setRecipients(Message.RecipientType.TO,InternetAddress.parse(MailTo));
}
//设置抄送人
if(MailCopyTo!=null){
mimeMsg.setRecipients(javax.mail.Message.RecipientType.CC,InternetAddress.parse(MailCopyTo));
}
//设置暗送人
if(MailBCopyTo!=null){
mimeMsg.setRecipients(javax.mail.Message.RecipientType.BCC,InternetAddress.parse(MailBCopyTo));
}
//设置邮件主题
mimeMsg.setSubject(MailSubject,"utf-8");
//设置邮件内容，将邮件body部分转化为HTML格式
mimeMsg.setContent(MailBody,"text/html;charset=utf-8");
//发送邮件
Transport.send(mimeMsg);
returntrue;
}catch(Exceptione){
e.printStackTrace();
returnfalse;
}
}
}
publicstaticbooleanemail(Stringemail,Stringstr){
StringSMTPHost="smtp.qq.com";
StringPort="25";
StringMailUsername="gkh35@foxmail.com";//直接用我的邮件进行发送测试
StringMailPassword="wggddlvcrqfubhde";//密码请勿修改
SendMailsendMail=newSendMail(SMTPHost,Port,MailUsername,MailPassword);
StringMailFrom="gkh35@foxmail.com";//发件人
StringMailTo=email;//收件人
StringMailCopyTo=null;//抄送人
StringMailBCopyTo=null;//暗送人
StringMailSubject="发现类似商品";//邮件主题
StringMailBody=str;//邮件内容
//发送邮件
booleanisSend=sendMail.sendingMimeMail(MailFrom,MailTo,MailCopyTo,MailBCopyTo,MailSubject,MailBody);
returnisSend;
}
4、main方法
publicstaticvoidmain(String[]args)throwsSQLException{
booleanflag=false;
Stringstr=demo();
for(DuibiModelduibiModel:getBaoX(str)){
System.out.println("名称为:"+duibiModel.getBt()+","+"身份证号："+duibiModel.getCardid()+","+"电话号码为："+duibiModel.getPhone());
flag=email("gkh8299@gmail.com",duibiModel.getBt());
}
if(flag){
System.out.println("邮件发送成功");
}else{
System.out.println("邮件发送失败");
}
}
总结
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