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This article mainly introduces "how to achieve mail forwarding in Qt". In daily operation, I believe many people have doubts about how to achieve mail forwarding in Qt. The editor consulted all kinds of materials and sorted out simple and easy-to-use operation methods. I hope it will be helpful for you to answer the doubts about "how to achieve mail forwarding in Qt"! Next, please follow the editor to study!

I. Preface

The mail forwarding function is basically the same as the SMS alarm function, which is triggered after judging the alarm. what may be slightly different is that mail forwarding needs to rely on the Internet, and the amount of data that can be sent is very large. there is no limitation of 60 Chinese characters of text messages (of course, text messages can also be split into multiple messages, but it is expensive, try to control the information in one message and return the most information content as much as possible. In the case that the user can understand the content of the SMS, email forwarding also encapsulates a SendEmailThread-like, and SMS forwarding peer, both use a thread to send. In this system, when organizing the content of the email, the alarm information is specially sent in the form of a table, so that the received alarm email update is intuitive and clear. As for the adjustable interval between sending the alarm, 0 minutes means real-time sending. As soon as the alarm is triggered, send it immediately. It is not necessary to send an unimportant alarm in real time. You can adjust it to half a day or once a day, so that the form will have more lines and look more comfortable. Instead of jumping to receive an alarm email and another alarm email, it is very annoying.

In addition to supporting alarm triggering to send mail, this system also supports some specific functions, such as regularly sending alarm sorting mail to the mailbox of the person in charge, and the mailbox of the person in charge supports multiple mailboxes, of course, there are generally leaders besides the person in charge, and leaders sometimes want to see specific running reports when they are full and have nothing to do, or during the hardware testing phase, many hardware BUG often misreport. You can send it to the corresponding hardware engineer to see the alarm rule and the corresponding trigger value.

II. Functional features

Collect data port, support serial port + network port, serial port support free setting of serial number + baud rate, network support free setting of IP address + communication port, each port supports collection cycle, default one address per second, support setting communication timeout times, default 3 times, support maximum reconnection time, used to re-read offline devices.

Controller information, you can add the controller name, select the controller address + controller model, and set the number of detectors under the controller.

Detector information, can add tag, free to choose detector type, gas type, gas symbol, high reported value, low reported value, buffer value, clear zero value, whether enabled, alarm sound, background map, storage cycle, numerical conversion decimal places, alarm delay time, alarm type (HH,LL,HL) and so on.

Controller model + detector type + gas type + gas symbol, all can be configured freely.

Maps can be imported and deleted, and all detectors can be dragged and saved freely.

Port information + controller information + detector information, support import and export + export to excel+ printing.

Run record + alarm record + user record, support multi-condition combination query, such as time period + controller + detector, etc., all records can be exported to excel+ printing.

Records exported to excel support all versions of table files such as excel+wps and do not rely on software such as excel.

You can delete data within a specified time range, support automatic cleaning of early data, and set the maximum number of saved records.

Support alarm short message forwarding, support multiple receiving mobile phone numbers, you can set the sending interval, such as instant sending or sending all alarm messages once every 6 hours, the text message content is too long, automatically split multiple text messages.

Support alarm email forwarding, support multiple receiving mailboxes, can set sending interval, such as immediate sending or sending all alarm messages once every 6 hours, support attachment sending.

Overreport color + underreport color + normal color + 0 value color + curve background + curve color, etc., are free to choose.

The Chinese title + English title + logo path + copyright of the software can be set freely.

Provide switch settings for boot operation + alarm sound + automatic login + remember password and so on.

Alarm sound can be set to play the number of times, the interface provides 17 kinds of skin file selection.

Cloud data synchronization is supported, and the information of cloud database can be set, such as database name, user name + password, etc.

Support network forwarding and network reception, after the network reception is turned on, the software receives data from udp for analysis. Network forwarding supports multiple target IP, so it realizes the software of local collection, and freely transfers the data to the client to view the detector data at any time.

Automatically remember the user's last stay in the interface + other information, restart and apply automatically.

The alarm automatically switches to the corresponding map, and the detector button flashes.

Double-click the detector icon to control it back.

Support user rights management, administrator + operator two categories, user login + user exit, can remember the password and automatic login, more than three error messages and close the program.

Support four monitoring modes, equipment panel monitoring + map monitoring + table data monitoring + curve data monitoring, free to switch, four synchronous applications.

Support alarm relay linkage, a tag can link multiple modules and relay numbers across serial ports, and support many-to-many.

The local data store supports sqlite+mysql and remote data synchronization to the cloud database. Automatically reconnect.

The data collected by the local device is uploaded to the cloud in real time so that it can be extracted by other methods such as APP or web.

Two kinds of data sources are supported, one is serial port and network to collect equipment data through protocol, the other is database collection. The database acquisition mode can be used as a general system.

Comes with a device simulation tool that supports 16 device data simulations, as well as database data simulations to test data when there is no device.

The default communication protocol uses modbus protocol, and later increases the support of mqtt and other Internet of things protocols to make a general system.

Supports all windows operating systems + linux operating systems and other operating systems.

Third, effect picture

4. Core code # include "sendemailthread.h" # include "sendemail/smtpmime.h" # pragma execution_character_set ("utf-8") # define TIMEMS qPrintable (QTime::currentTime (). ToString ("hh:mm:ss zzz")) QScopedPointer SendEmailThread::self;SendEmailThread * SendEmailThread::Instance () {if (self.isNull ()) {static QMutex mutex; QMutexLocker locker (& mutex) If (self.isNull ()) {self.reset (new SendEmailThread);}} return self.data ();} SendEmailThread::SendEmailThread (QObject * parent): QThread (parent) {stopped = false; emialTitle = "message title"; sendEmailAddr = "feiyangqingyun@126.com"; sendEmailPwd = "123456789"; receiveEmailAddr = "feiyangqingyun@163.com;517216493@qq.com"; contents.clear () FileNames.clear ();} SendEmailThread::~SendEmailThread () {this- > stop (); this- > wait (1000);} void SendEmailThread::run () {while (! stopped) {int count = contents.count (); if (count > 0) {mutex.lock (); QString content = contents.takeFirst (); QString fileName = fileNames.takeFirst (); mutex.unlock () QString result; QStringList list = sendEmailAddr.split ("@"); QString tempSMTP = list.at (1) .split (".") .at (0); int tempPort = 25; / / QQ Mail port number is 465, SSL protocol must be enabled. If (tempSMTP.toUpper () = = "QQ") {tempPort = 465;} SmtpClient smtp (QString ("smtp.%1.com") .arg (tempSMTP), tempPort, tempPort = = 25? SmtpClient::TcpConnection: SmtpClient::SslConnection); smtp.setUser (sendEmailAddr); smtp.setPassword (sendEmailPwd); / / build email subject, including sender and recipient attachments, etc. MimeMessage message; message.setSender (new EmailAddress (sendEmailAddr)); / / add recipients QStringList receiver = receiveEmailAddr.split (';') one by one; for (int I = 0; I

< receiver.size(); i++) { message.addRecipient(new EmailAddress(receiver.at(i))); } //构建邮件标题 message.setSubject(emialTitle); //构建邮件正文 MimeHtml text; text.setHtml(content); message.addPart(&text); //构建附件-报警图像 if (fileName.length() >

0) {QStringList attas = fileName.split (";"); foreach (QString tempAtta, attas) {QFile * file = new QFile (tempAtta); if (file- > exists ()) {message.addPart (new MimeAttachment (file)) } if (! smtp.connectToHost ()) {result = "Mail server connection failed";} else {if (! smtp.login ()) {result = "Mail user login failure" } else {if (! smtp.sendMail (message)) {result = "message sent failed";} else {result = "message sent successfully";} smtp.quit () If (! result.isEmpty ()) {emit receiveEmailResult (result);} msleep (1000);} msleep (100);} stopped = false;} void SendEmailThread::stop () {stopped = true;} void SendEmailThread::setEmialTitle (const QString & emailTitle) {this- > emialTitle = emailTitle;} void SendEmailThread::setSendEmailAddr (const QString & sendEmailAddr) {this- > sendEmailAddr = sendEmailAddr } void SendEmailThread::setSendEmailPwd (const QString & sendEmailPwd) {this- > sendEmailPwd = sendEmailPwd;} void SendEmailThread::setReceiveEmailAddr (const QString & receiveEmailAddr) {this- > receiveEmailAddr = receiveEmailAddr;} void SendEmailThread::append (const QString & content, const QString & fileName) {mutex.lock (); contents.append (content); fileNames.append (fileName); mutex.unlock (); at this point, the study on "how Qt forwards email" is over, hoping to solve everyone's doubts. The collocation of theory and practice can better help you learn, go and try it! If you want to continue to learn more related knowledge, please continue to follow the website, the editor will continue to work hard to bring you more practical articles!

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