更新

README.md

@@ -27,4 +27,5 @@
 | 24 | qwtdemo | qwt的源码版本，无需插件，直接源码集成到你的项目即可 |
 | 25 | buttondefence | 通用按钮地图效果 |
 | 26 | mouseline | 鼠标定位十字线 |
-| 27 | email | 邮件发送工具 |
+| 27 | email | 邮件发送工具 |
+| 27 | ntpclient | NTP服务器时间同步 |

ntpclient/frmntpclient.cpp

@@ -0,0 +1,27 @@
+#pragma execution_character_set("utf-8")
+
+#include "frmntpclient.h"
+#include "ui_frmntpclient.h"
+#include "ntpclient.h"
+
+frmNtpClient::frmNtpClient(QWidget *parent) : QWidget(parent), ui(new Ui::frmNtpClient)
+{
+    ui->setupUi(this);
+    connect(NtpClient::Instance(), SIGNAL(receiveTime(QDateTime)), this, SLOT(receiveTime(QDateTime)));
+}
+
+frmNtpClient::~frmNtpClient()
+{
+    delete ui;
+}
+
+void frmNtpClient::on_btnGetTime_clicked()
+{
+    NtpClient::Instance()->setNtpIP(ui->txtNtpIP->text().trimmed());
+    NtpClient::Instance()->getDateTime();
+}
+
+void frmNtpClient::receiveTime(const QDateTime &dateTime)
+{
+    ui->txtTime->setText(dateTime.toString("yyyy-MM-dd HH:mm:ss"));
+}

ntpclient/frmntpclient.h

@@ -0,0 +1,27 @@
+#ifndef FRMNTPCLIENT_H
+#define FRMNTPCLIENT_H
+
+#include <QWidget>
+#include <QDateTime>
+
+namespace Ui {
+class frmNtpClient;
+}
+
+class frmNtpClient : public QWidget
+{
+    Q_OBJECT
+
+public:
+    explicit frmNtpClient(QWidget *parent = 0);
+    ~frmNtpClient();
+
+private:
+    Ui::frmNtpClient *ui;
+
+private slots:
+    void on_btnGetTime_clicked();
+    void receiveTime(const QDateTime &dateTime);
+};
+
+#endif // FRMNTPCLIENT_H

ntpclient/frmntpclient.ui

@@ -0,0 +1,68 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<ui version="4.0">
+ <class>frmNtpClient</class>
+ <widget class="QWidget" name="frmNtpClient">
+  <property name="geometry">
+   <rect>
+    <x>0</x>
+    <y>0</y>
+    <width>400</width>
+    <height>300</height>
+   </rect>
+  </property>
+  <property name="windowTitle">
+   <string>Form</string>
+  </property>
+  <widget class="QWidget" name="">
+   <property name="geometry">
+    <rect>
+     <x>10</x>
+     <y>10</y>
+     <width>321</width>
+     <height>48</height>
+    </rect>
+   </property>
+   <layout class="QGridLayout" name="gridLayout">
+    <item row="0" column="0">
+     <widget class="QLabel" name="labNtpIP">
+      <property name="text">
+       <string>NTP服务器</string>
+      </property>
+     </widget>
+    </item>
+    <item row="0" column="1">
+     <widget class="QLineEdit" name="txtNtpIP">
+      <property name="text">
+       <string>133.100.11.8</string>
+      </property>
+     </widget>
+    </item>
+    <item row="0" column="2" rowspan="2">
+     <widget class="QPushButton" name="btnGetTime">
+      <property name="sizePolicy">
+       <sizepolicy hsizetype="Minimum" vsizetype="Expanding">
+        <horstretch>0</horstretch>
+        <verstretch>0</verstretch>
+       </sizepolicy>
+      </property>
+      <property name="text">
+       <string>获取时间</string>
+      </property>
+     </widget>
+    </item>
+    <item row="1" column="0">
+     <widget class="QLabel" name="labTime">
+      <property name="text">
+       <string>返回时间</string>
+      </property>
+     </widget>
+    </item>
+    <item row="1" column="1">
+     <widget class="QLineEdit" name="txtTime"/>
+    </item>
+   </layout>
+  </widget>
+ </widget>
+ <resources/>
+ <connections/>
+</ui>

ntpclient/main.cpp

@@ -0,0 +1,31 @@
+#pragma execution_character_set("utf-8")
+
+#include "frmntpclient.h"
+#include <QApplication>
+#include <QTextCodec>
+
+int main(int argc, char *argv[])
+{
+    QApplication a(argc, argv);
+    a.setFont(QFont("Microsoft Yahei", 9));
+
+#if (QT_VERSION <= QT_VERSION_CHECK(5,0,0))
+#if _MSC_VER
+    QTextCodec *codec = QTextCodec::codecForName("gbk");
+#else
+    QTextCodec *codec = QTextCodec::codecForName("utf-8");
+#endif
+    QTextCodec::setCodecForLocale(codec);
+    QTextCodec::setCodecForCStrings(codec);
+    QTextCodec::setCodecForTr(codec);
+#else
+    QTextCodec *codec = QTextCodec::codecForName("utf-8");
+    QTextCodec::setCodecForLocale(codec);
+#endif
+
+    frmNtpClient w;
+    w.setWindowTitle("Ntp校时");
+    w.show();
+
+    return a.exec();
+}

ntpclient/ntpclient.cpp

@@ -0,0 +1,107 @@
+#include "ntpclient.h"
+#include "qmutex.h"
+#include "qudpsocket.h"
+
+QScopedPointer<NtpClient> NtpClient::self;
+NtpClient *NtpClient::Instance()
+{
+    if (self.isNull()) {
+        static QMutex mutex;
+        QMutexLocker locker(&mutex);
+        if (self.isNull()) {
+            self.reset(new NtpClient);
+        }
+    }
+
+    return self.data();
+}
+
+NtpClient::NtpClient(QObject *parent) : QObject(parent)
+{
+    ntpIP = "202.120.2.101";
+
+    udpSocket = new QUdpSocket(this);
+    connect(udpSocket, SIGNAL(connected()), this, SLOT(sendData()));
+    connect(udpSocket, SIGNAL(readyRead()), this, SLOT(readData()));
+}
+
+void NtpClient::sendData()
+{
+    qint8 LI = 0;
+    qint8 VN = 3;
+    qint8 MODE = 3;
+    qint8 STRATUM = 0;
+    qint8 POLL = 4;
+    qint8 PREC = -6;
+    QDateTime epoch(QDate(1900, 1, 1));
+    qint32 second = quint32(epoch.secsTo(QDateTime::currentDateTime()));
+
+    qint32 temp = 0;
+    QByteArray timeRequest(48, 0);
+    timeRequest[0] = (LI << 6) | (VN << 3) | (MODE);
+    timeRequest[1] = STRATUM;
+    timeRequest[2] = POLL;
+    timeRequest[3] = PREC & 0xff;
+    timeRequest[5] = 1;
+    timeRequest[9] = 1;
+    timeRequest[40] = (temp = (second & 0xff000000) >> 24);
+    temp = 0;
+    timeRequest[41] = (temp = (second & 0x00ff0000) >> 16);
+    temp = 0;
+    timeRequest[42] = (temp = (second & 0x0000ff00) >> 8);
+    temp = 0;
+    timeRequest[43] = ((second & 0x000000ff));
+
+    udpSocket->write(timeRequest);
+}
+
+void NtpClient::readData()
+{
+    QByteArray newTime;
+    QDateTime epoch(QDate(1900, 1, 1));
+    QDateTime unixStart(QDate(1970, 1, 1));
+
+    while (udpSocket->hasPendingDatagrams()) {
+        newTime.resize(udpSocket->pendingDatagramSize());
+        udpSocket->read(newTime.data(), newTime.size());
+    };
+
+    QByteArray transmitTimeStamp ;
+    transmitTimeStamp = newTime.right(8);
+    quint32 seconds = transmitTimeStamp.at(0);
+    quint8 temp = 0;
+
+    for (int i = 1; i <= 3; i++) {
+        seconds = (seconds << 8);
+        temp = transmitTimeStamp.at(i);
+        seconds = seconds + temp;
+    }
+
+    QDateTime dateTime;
+    dateTime.setTime_t(seconds - epoch.secsTo(unixStart));
+
+#ifdef __arm__
+#ifdef arma9
+    dateTime = dateTime.addSecs(60 * 60 * 8);
+#endif
+#endif
+    udpSocket->disconnectFromHost();
+
+    //有些时候返回的数据可能有误或者解析不正确,导致填充的时间不正确
+    if (dateTime.isValid()) {
+        emit receiveTime(dateTime);
+    }
+}
+
+void NtpClient::setNtpIP(const QString &ntpIP)
+{
+    if (this->ntpIP != ntpIP) {
+        this->ntpIP = ntpIP;
+    }
+}
+
+void NtpClient::getDateTime()
+{
+    udpSocket->abort();
+    udpSocket->connectToHost(ntpIP, 123);
+}

ntpclient/ntpclient.h

@@ -0,0 +1,54 @@
+#ifndef NTPCLIENT_H
+#define NTPCLIENT_H
+
+/**
+ * Ntp校时类 作者:feiyangqingyun(QQ:517216493) 2017-2-16
+ * 1:可设置Ntp服务器IP地址
+ * 2:收到时间信号发出
+ */
+
+#include <QObject>
+#include <QDateTime>
+class QUdpSocket;
+
+#ifdef quc
+#if (QT_VERSION < QT_VERSION_CHECK(5,7,0))
+#include <QtDesigner/QDesignerExportWidget>
+#else
+#include <QtUiPlugin/QDesignerExportWidget>
+#endif
+
+class QDESIGNER_WIDGET_EXPORT NtpClient : public QObject
+#else
+class NtpClient : public QObject
+#endif
+
+{
+    Q_OBJECT
+public:
+    static NtpClient *Instance();
+    explicit NtpClient(QObject *parent = 0);
+
+private:
+    static QScopedPointer<NtpClient> self;
+    QString ntpIP;
+    QUdpSocket *udpSocket;
+
+private slots:
+    void readData();
+    void sendData();
+
+signals:
+    //收到时间返回
+    void receiveTime(const QDateTime &dateTime);
+
+public slots:
+    //设置NTP服务器IP
+    void setNtpIP(const QString &ntpIP);
+
+    //获取日期时间
+    void getDateTime();
+
+};
+
+#endif // NTPCLIENT_H

ntpclient/ntpclient.pro

@@ -0,0 +1,23 @@
+#-------------------------------------------------
+#
+# Project created by QtCreator 2019-02-16T15:08:47
+#
+#-------------------------------------------------
+
+QT       += core gui network
+
+greaterThan(QT_MAJOR_VERSION, 4): QT += widgets
+
+TARGET      = ntpclient
+TEMPLATE    = app
+DESTDIR     = $$PWD/../bin
+CONFIG      += warn_off
+
+SOURCES     += main.cpp
+SOURCES     += frmntpclient.cpp
+SOURCES     += ntpclient.cpp
+
+HEADERS     += frmntpclient.h
+HEADERS     += ntpclient.h
+
+FORMS       += frmntpclient.ui