代码拉取完成，页面将自动刷新
#include "mainwindow.h"
#include "ui_mainwindow.h"
#include <QMenu>
#include <QAction>
#include <QDebug>
#include <QCheckBox>
#include <QDir>
#include <QMetaObject>
#include <QMetaClassInfo>
#include <QMetaMethod>
#include <typeinfo>
#include <QtDebug>
#include <QFile>
#include <QTextStream>
#include <utils.h>
#include <QPrinter>
#include <QPrintDialog>
#include <QTextDocument>
#include <base64.h>
#include <QProcess>
/***
* 主题方法，初始化中有以下任务：
* 创建任务栏图标
* 创建任务栏小菜单
* 关联事件和MainWindow方法
* 设置默认dll存放目录和app基本信息
* 读取本地配置：
* redis的ip和地址 默认 127.0.0.1 6379
* udp监听端口 默认 9368
* 程序是否开机启动 默认 false
* 返回信息的间隔符 默认 |->
* 初始化UDP监听，开启监听
* 创建provider，初始化provider用于调用读取dll/打印/二维码等服务
* 设置开机启动和开机启动勾选关联方法
*
* 程序生成完毕
* ***/
MainWindow::MainWindow(QWidget *parent) :
QMainWindow(parent),
ui(new Ui::MainWindow)
{
ui->setupUi(this);
// 创建任务栏图标
trayIcon = new QSystemTrayIcon(this);
trayIcon->setIcon(QIcon(":/logo.ico"));
trayIcon->setVisible(true);
connect(trayIcon, &QSystemTrayIcon::activated, this, &MainWindow::onTrayIconActivated);
trayIcon->setContextMenu(new QMenu(this));
//任务栏小菜单功能
trayIcon->contextMenu()->addAction(QIcon(":/pics/测试.png"),"测试", this, &MainWindow::b_test_clicked);
trayIcon->contextMenu()->addAction(QIcon(":/pics/显示.png"),"显示主界面",this,&MainWindow::show);
trayIcon->contextMenu()->addAction(QIcon(":/pics/退出.png"),"退出程序", this, &MainWindow::closeApp);
// 组件事件与方法关联区 b_UDPSend
connect(this->findChild<QPushButton *>("b_RedisReadWrite"),&QPushButton::clicked,this,&MainWindow::b_RedisReadWrite_clicked);
connect(this->findChild<QPushButton *>("b_UDPBegin"),&QPushButton::clicked,this,&MainWindow::b_UDPBegin_clicked);
connect(this->findChild<QPushButton *>("b_UDPEnd"),&QPushButton::clicked,this,&MainWindow::b_UDPEnd_clicked);
connect(this->findChild<QPushButton *>("b_test"),&QPushButton::clicked,this,&MainWindow::b_test_clicked);
connect(this->findChild<QAction *>("a_mini"),&QAction::triggered,this,&MainWindow::a_mini_triggered);
connect(this->findChild<QAction *>("a_close"),&QAction::triggered,this,&MainWindow::a_close_triggered);
connect(this->findChild<QCheckBox *>("c_openWithSystem"),&QCheckBox::toggled,this,&MainWindow::c_openWithSystem_toggled);
connect(this->findChild<QLineEdit *>("t_psw"),&QLineEdit::textEdited,this,&MainWindow::t_psw_entered);
//设置dll存放目录，默认在exe目录下的 /dll 文件夹内
dir = qApp->applicationDirPath();
appName = "LocalService";
appSource = dir + "/" + appName + ".exe";
//读取本地配置，文件默认在exe目录下 如果不存在就设置默认值
settings = new QSettings("LocalService.ini",QSettings::IniFormat);
QFileInfo fileInfo(dir + "/LocalService.ini");
if(fileInfo.isFile()){
qDebug()<<dir + "/LocalService.ini 读取中！"<<endl;
//获取Redis数据库的IP和Port
QString ip = settings->value("redis/ip").toString();
int port = settings->value("redis/port").toInt();
if(ip.isEmpty() || port <= 0){
qDebug() << dir + "/LocalService.ini 中未配置Redis数据库地址！" << endl;
redis = new Redis("127.0.0.1",6379);
settings->setValue("redis/ip","127.0.0.1");
settings->setValue("redis/port",6379);
}else{
redis = new Redis(ip,port);
}
// 获取UDP监听端口配置
udpPort = settings->value("udp/port").toString();
if(udpPort.isEmpty()){
udpPort = "9368";
settings->setValue("udp/port","9368");
}
ui->t_newUDPPort->setText(udpPort);
// 获取是否随系统启动配置
QString sWS = settings->value("system/open").toString();
if(sWS.isEmpty()){
openWithSystem = false;
settings->setValue("system/open","false");
}else{
if(sWS.trimmed() == "true"){
openWithSystem = true;
}else{
openWithSystem = false;
}
}
ui->c_openWithSystem->setChecked(this->openWithSystem);
// 获取接收数据和返回数据的间隔符 默认为 |->
this->split = settings->value("system/split").toString();
if(this->split.isEmpty()){
this->split = "|->";
settings->setValue("system/split","|->");
}
// 获取更新服务器信息，默认是FTP方式更新
this->updateServiceURL = settings->value("update/url").toString();
this->updateType = settings->value("update/type").toString().toLower();// ftp http
if(this->updateType.isEmpty()) this->updateType = "ftp";
}else{
qDebug()<<dir + "/LocalService.ini 文件不存在！"<<endl;
redis = new Redis("127.0.0.1",6379);
udpPort = "9368";
openWithSystem = false;
this->split = "|->";
settings->setValue("redis/ip","127.0.0.1");
settings->setValue("redis/port",6379);
settings->setValue("udp/port","9368");
settings->setValue("system/open","false");
settings->setValue("system/split","|->");
}
settings->sync();
//配置了更新地址则自动更新
if(!this->updateServiceURL.isEmpty()){
this->version = this->app->arguments().first();
if(this->version.isEmpty()){
this->autoUpdate();
}
}
qApp->setQuitOnLastWindowClosed(false);
//UDP相关
udpSendSocket = new QUdpSocket(this);
udpReceiveSocket = new QUdpSocket(this);
connect(udpReceiveSocket,SIGNAL(readyRead()),
this,SLOT(onSocketReadyRead()));
this->udpListening = false;
this->udpBegin();
//ServiceProvider 设置
provider = new ServiceProvider(dir,this->split);
//设置组件状态
this->findChild<QCheckBox *>("c_openWithSystem")->setChecked(this->openWithSystem);
//设置开机启动
this->setOpenWithSystem();
//设置窗口性质
this->setWindowFlags(windowFlags()&~Qt::WindowMaximizeButtonHint); // 禁止最大化按钮
this->setFixedSize(570,410); // 禁止拖动窗口大小
qDebug()<<"程序主窗口生成"<<endl;
}
/***
* 窗口销毁：
* udp连接丢弃
* 删除相关组件
* ***/
MainWindow::~MainWindow()
{
udpReceiveSocket->abort();
udpSendSocket->abort();
delete redis;
delete provider;
delete udpSendSocket;
delete udpReceiveSocket;
delete ui;
}
/***
* 测试方法
*
* ***/
void MainWindow::b_test_clicked(){
qDebug()<< "<< 测试";
qDebug("()测试");
QPrinter printer;
printer.setPageSize(QPrinter::A4);
// QPrintDialog printDialog(&printer, this);
// if (printDialog.exec()){
QTextDocument textDocument;
QString html("<!DOCTYPE html> <html lang=\"zh-cn\"> <head> <meta charset=\"utf-8\" /> <meta name=\"viewport\" content=\"width=device-width, initial-scale=1.0\" /> <meta name=\"referrer\" content=\"origin-when-cross-origin\" /> <meta name=\"description\" content=\"1.使用html生成表格QString wesiOperateWidget::MakeDataToHtml(){ //表头 //html = &quot;&quot;; //html += &quot;&quot;; //html += &quot;编号&quot;; //html += &quot\" /> <meta property=\"og:description\" content=\"1.使用html生成表格QString wesiOperateWidget::MakeDataToHtml(){ //表头 //html = &quot;&quot;; //html += &quot;&quot;; //html += &quot;编号&quot;; //html += &quot\" /> <meta http-equiv=\"Cache-Control\" content=\"no-transform\" /> <meta http-equiv=\"Cache-Control\" content=\"no-siteapp\" /> <meta http-equiv=\"X-UA-Compatible\" content=\"IE=edge\" /> <title>使用QPrinter生成pdf或用打印机打印数据 - 恒月美剑 - 博客园</title> <link id=\"favicon\" rel=\"shortcut icon\" href=\"//common.cnblogs.com/favicon.svg\" type=\"image/svg+xml\" /> <link rel=\"stylesheet\" 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class=\"headermaintitle HeaderMainTitle\" href=\"https://www.cnblogs.com/jck34/\">恒月美剑</a> </h1> <h2></h2> </div><!--end: blogTitle 博客的标题和副标题 --> <div id=\"navigator\"> <ul id=\"navList\"> <li><a id=\"blog_nav_sitehome\" class=\"menu\" href=\"https://www.cnblogs.com/\"> 博客园</a> </li> <li> <a id=\"blog_nav_myhome\" class=\"menu\" href=\"https://www.cnblogs.com/jck34/\"> 首页</a> </li> <li> <a id=\"blog_nav_newpost\" class=\"menu\" href=\"https://i.cnblogs.com/EditPosts.aspx?opt=1\"> 新随笔</a> </li> <li> </li> <li> <a id=\"blog_nav_rss\" class=\"menu\" href=\"javascript:void(0)\" data-rss=\"https://www.cnblogs.com/jck34/rss/\"> 订阅</a> <!--<partial name=\"./Shared/_XmlLink.cshtml\" model=\"Model\" /></li>--></li> <li> <a id=\"blog_nav_admin\" class=\"menu\" href=\"https://i.cnblogs.com/\"> 管理</a> </li> </ul> <div class=\"blogStats\"> <div id=\"blog_stats_place_holder\"><script>loadBlogStats();</script></div> </div><!--end: blogStats --> </div><!--end: navigator 博客导航栏 --> </div><!--end: header 头部 --> <div id=\"main\"> <div id=\"mainContent\"> <div class=\"forFlow\"> <div id=\"post_detail\"> <!--done--> <div id=\"topics\"> <div class=\"post\"> <h1 class = \"postTitle\"> <a id=\"cb_post_title_url\" class=\"postTitle2 vertical-middle\" href=\"https://www.cnblogs.com/jck34/p/4107885.html\"> <span role=\"heading\" aria-level=\"2\">使用QPrinter生成pdf或用打印机打印数据</span> </a> </h1> <div class=\"clear\"></div> <div class=\"postBody\"> <div id=\"cnblogs_post_body\" class=\"blogpost-body blogpost-body-html\"> <p>1.使用html生成表格</p> <div class=\"cnblogs_code\"><img id=\"code_img_closed_2f0c748e-9f76-49ec-9fe0-ec96683e480b\" class=\"code_img_closed\" src=\"https://images.cnblogs.com/OutliningIndicators/ContractedBlock.gif\" alt=\"\"><img id=\"code_img_opened_2f0c748e-9f76-49ec-9fe0-ec96683e480b\" class=\"code_img_opened\" style=\"display: none\" src=\"https://images.cnblogs.com/OutliningIndicators/ExpandedBlockStart.gif\" alt=\"\"> <div id=\"cnblogs_code_open_2f0c748e-9f76-49ec-9fe0-ec96683e480b\" class=\"cnblogs_code_hide\"> <pre><span style=\"color: rgba(0, 0, 0, 1)\">QString wesiOperateWidget::MakeDataToHtml() { </span><span style=\"color: rgba(0, 128, 0, 1)\">//</span><span style=\"color: rgba(0, 128, 0, 1)\">表头 </span><span style=\"color: rgba(0, 128, 0, 1)\">//</span><span style=\"color: rgba(0, 128, 0, 1)\">html = \"<table width=100% border=1 cellspacing=0 text-align=center style=border-collapse:collapse>\"; </span><span style=\"color: rgba(0, 128, 0, 1)\">//</span><span style=\"color: rgba(0, 128, 0, 1)\">html += \"<tr>\"; </span><span style=\"color: rgba(0, 128, 0, 1)\">//</span><span style=\"color: rgba(0, 128, 0, 1)\">html += \"<th>编号</th>\"; </span><span style=\"color: rgba(0, 128, 0, 1)\">//</span><span style=\"color: rgba(0, 128, 0, 1)\">html += \"<th>姓名</th>\"; </span><span style=\"color: rgba(0, 128, 0, 1)\">//</span><span style=\"color: rgba(0, 128, 0, 1)\">html += \"<th>头部成绩</th>\"; </span><span style=\"color: rgba(0, 128, 0, 1)\">//</span><span style=\"color: rgba(0, 128, 0, 1)\">html += \"<th>胸部成绩</th>\"; </span><span style=\"color: rgba(0, 128, 0, 1)\">//</span><span style=\"color: rgba(0, 128, 0, 1)\">html += \"</tr>\";</span> <span style=\"color: rgba(128, 128, 128, 1)\">///</span><span style=\"color: rgba(0, 128, 0, 1)\">/数据</span> <span style=\"color: rgba(0, 128, 0, 1)\">//</span><span style=\"color: rgba(0, 128, 0, 1)\">html += \"<tr>\"; </span><span style=\"color: rgba(0, 128, 0, 1)\">//</span><span style=\"color: rgba(0, 128, 0, 1)\">html += \"<td align=center>1</td>\"; </span><span style=\"color: rgba(0, 128, 0, 1)\">//</span><span style=\"color: rgba(0, 128, 0, 1)\">html += \"<td align=center>赵六</td>\"; </span><span style=\"color: rgba(0, 128, 0, 1)\">//</span><span style=\"color: rgba(0, 128, 0, 1)\">html += \"<td align=center>100</td>\"; </span><span style=\"color: rgba(0, 128, 0, 1)\">//</span><span style=\"color: rgba(0, 128, 0, 1)\">html += \"<td align=center>400</td>\"; </span><span style=\"color: rgba(0, 128, 0, 1)\">//</span><span style=\"color: rgba(0, 128, 0, 1)\">html += \"</tr>\"; </span><span style=\"color: rgba(0, 128, 0, 1)\">//</span><span style=\"color: rgba(0, 128, 0, 1)\">html += \"</table>\";</span> <span style=\"color: rgba(0, 0, 0, 1)\"> QString html; html </span>= <span style=\"color: rgba(128, 0, 0, 1)\">\"</span><span style=\"color: rgba(128, 0, 0, 1)\"><table width=100% border=1 cellspacing=0 text-align=center style=border-collapse:collapse></span><span style=\"color: rgba(128, 0, 0, 1)\">\"</span><span style=\"color: rgba(0, 0, 0, 1)\">; html </span>+= <span style=\"color: rgba(128, 0, 0, 1)\">\"</span><span style=\"color: rgba(128, 0, 0, 1)\"><tr></span><span style=\"color: rgba(128, 0, 0, 1)\">\"</span><span style=\"color: rgba(0, 0, 0, 1)\">; html </span>+= <span style=\"color: rgba(128, 0, 0, 1)\">\"</span><span style=\"color: rgba(128, 0, 0, 1)\"><th>编号</th></span><span style=\"color: rgba(128, 0, 0, 1)\">\"</span><span style=\"color: rgba(0, 0, 0, 1)\">; html </span>+= <span style=\"color: rgba(128, 0, 0, 1)\">\"</span><span style=\"color: rgba(128, 0, 0, 1)\"><th>姓名</th></span><span style=\"color: rgba(128, 0, 0, 1)\">\"</span><span style=\"color: rgba(0, 0, 0, 1)\">; html </span>+= <span style=\"color: rgba(128, 0, 0, 1)\">\"</span><span style=\"color: rgba(128, 0, 0, 1)\"><th>头部成绩</th></span><span style=\"color: rgba(128, 0, 0, 1)\">\"</span><span style=\"color: rgba(0, 0, 0, 1)\">; html </span>+= <span style=\"color: rgba(128, 0, 0, 1)\">\"</span><span style=\"color: rgba(128, 0, 0, 1)\"><th>胸部成绩</th></span><span style=\"color: rgba(128, 0, 0, 1)\">\"</span><span style=\"color: rgba(0, 0, 0, 1)\">; html </span>+= <span style=\"color: rgba(128, 0, 0, 1)\">\"</span><span style=\"color: rgba(128, 0, 0, 1)\"></tr></span><span style=\"color: rgba(128, 0, 0, 1)\">\"</span><span style=\"color: rgba(0, 0, 0, 1)\">; QStringList dataStringList; QStringList rowInfoList; html </span>+= <span style=\"color: rgba(128, 0, 0, 1)\">\"</span><span style=\"color: rgba(128, 0, 0, 1)\"><tr></span><span style=\"color: rgba(128, 0, 0, 1)\">\"</span><span style=\"color: rgba(0, 0, 0, 1)\">; </span><span style=\"color: rgba(0, 0, 255, 1)\">foreach</span><span style=\"color: rgba(0, 0, 0, 1)\">(QString str, dataStringList) { rowInfoList </span>= str.split(<span style=\"color: rgba(128, 0, 0, 1)\">\"</span><span style=\"color: rgba(128, 0, 0, 1)\">,</span><span style=\"color: rgba(128, 0, 0, 1)\">\"</span><span style=\"color: rgba(0, 0, 0, 1)\">); </span><span style=\"color: rgba(0, 0, 255, 1)\">for</span>(<span style=\"color: rgba(0, 0, 255, 1)\">int</span> i = <span style=\"color: rgba(128, 0, 128, 1)\">0</span>; i < <span style=\"color: rgba(128, 0, 128, 1)\">8</span>; i += <span style=\"color: rgba(128, 0, 128, 1)\">2</span><span style=\"color: rgba(0, 0, 0, 1)\">) { </span><span style=\"color: rgba(0, 0, 255, 1)\">if</span>(rowInfoList[i] == <span style=\"color: rgba(128, 0, 0, 1)\">\"</span><span style=\"color: rgba(128, 0, 0, 1)\">number</span><span style=\"color: rgba(128, 0, 0, 1)\">\"</span><span style=\"color: rgba(0, 0, 0, 1)\">) { html </span>= html + <span style=\"color: rgba(128, 0, 0, 1)\">\"</span><span style=\"color: rgba(128, 0, 0, 1)\"><td align=center></span><span style=\"color: rgba(128, 0, 0, 1)\">\"</span> + rowInfoList[i + i] + <span style=\"color: rgba(128, 0, 0, 1)\">\"</span><span style=\"color: rgba(128, 0, 0, 1)\"></td></span><span style=\"color: rgba(128, 0, 0, 1)\">\"</span><span style=\"color: rgba(0, 0, 0, 1)\">; } </span><span style=\"color: rgba(0, 0, 255, 1)\">else</span> <span style=\"color: rgba(0, 0, 255, 1)\">if</span>(rowInfoList[i] == <span style=\"color: rgba(128, 0, 0, 1)\">\"</span><span style=\"color: rgba(128, 0, 0, 1)\">name</span><span style=\"color: rgba(128, 0, 0, 1)\">\"</span><span style=\"color: rgba(0, 0, 0, 1)\">) { html </span>= html + <span style=\"color: rgba(128, 0, 0, 1)\">\"</span><span style=\"color: rgba(128, 0, 0, 1)\"><td align=center></span><span style=\"color: rgba(128, 0, 0, 1)\">\"</span> + rowInfoList[i + i] + <span style=\"color: rgba(128, 0, 0, 1)\">\"</span><span style=\"color: rgba(128, 0, 0, 1)\"></td></span><span style=\"color: rgba(128, 0, 0, 1)\">\"</span><span style=\"color: rgba(0, 0, 0, 1)\">; } </span><span style=\"color: rgba(0, 0, 255, 1)\">else</span> <span style=\"color: rgba(0, 0, 255, 1)\">if</span>(rowInfoList[i] == <span style=\"color: rgba(128, 0, 0, 1)\">\"</span><span style=\"color: rgba(128, 0, 0, 1)\">headscore</span><span style=\"color: rgba(128, 0, 0, 1)\">\"</span><span style=\"color: rgba(0, 0, 0, 1)\">) { html </span>= html + <span style=\"color: rgba(128, 0, 0, 1)\">\"</span><span style=\"color: rgba(128, 0, 0, 1)\"><td align=center></span><span style=\"color: rgba(128, 0, 0, 1)\">\"</span> + rowInfoList[i + i] + <span style=\"color: rgba(128, 0, 0, 1)\">\"</span><span style=\"color: rgba(128, 0, 0, 1)\"></td></span><span style=\"color: rgba(128, 0, 0, 1)\">\"</span><span style=\"color: rgba(0, 0, 0, 1)\">; } </span><span style=\"color: rgba(0, 0, 255, 1)\">else</span> <span style=\"color: rgba(0, 0, 255, 1)\">if</span>(rowInfoList[i] == <span style=\"color: rgba(128, 0, 0, 1)\">\"</span><span style=\"color: rgba(128, 0, 0, 1)\">bodyscore</span><span style=\"color: rgba(128, 0, 0, 1)\">\"</span><span style=\"color: rgba(0, 0, 0, 1)\">) { html </span>= html + <span style=\"color: rgba(128, 0, 0, 1)\">\"</span><span style=\"color: rgba(128, 0, 0, 1)\"><td align=center></span><span style=\"color: rgba(128, 0, 0, 1)\">\"</span> + rowInfoList[i + i] + <span style=\"color: rgba(128, 0, 0, 1)\">\"</span><span style=\"color: rgba(128, 0, 0, 1)\"></td></span><span style=\"color: rgba(128, 0, 0, 1)\">\"</span><span style=\"color: rgba(0, 0, 0, 1)\">; } } } html </span>+= <span style=\"color: rgba(128, 0, 0, 1)\">\"</span><span style=\"color: rgba(128, 0, 0, 1)\"></tr></span><span style=\"color: rgba(128, 0, 0, 1)\">\"</span><span style=\"color: rgba(0, 0, 0, 1)\">; html </span>+= <span style=\"color: rgba(128, 0, 0, 1)\">\"</span><span style=\"color: rgba(128, 0, 0, 1)\"></table></span><span style=\"color: rgba(128, 0, 0, 1)\">\"</span><span style=\"color: rgba(0, 0, 0, 1)\">; </span><span style=\"color: rgba(0, 0, 255, 1)\">return</span><span style=\"color: rgba(0, 0, 0, 1)\"> html; }</span></pre> </div> <span class=\"cnblogs_code_collapse\">view code</span></div> <p>2.生成pdf文档</p> <div class=\"cnblogs_code\"><img id=\"code_img_closed_d133538e-1dc1-4297-9dbd-0bdcd62ed732\" class=\"code_img_closed\" src=\"https://images.cnblogs.com/OutliningIndicators/ContractedBlock.gif\" alt=\"\"><img id=\"code_img_opened_d133538e-1dc1-4297-9dbd-0bdcd62ed732\" class=\"code_img_opened\" style=\"display: none\" src=\"https://images.cnblogs.com/OutliningIndicators/ExpandedBlockStart.gif\" alt=\"\"> <div id=\"cnblogs_code_open_d133538e-1dc1-4297-9dbd-0bdcd62ed732\" class=\"cnblogs_code_hide\"> <pre><span style=\"color: rgba(0, 0, 0, 1)\"> QPrinter printer; printer.setPageSize(QPrinter::A4); printer.setOutputFormat(QPrinter::PdfFormat); QString filepath </span>= QFileDialog::getSaveFileName(<span style=\"color: rgba(0, 0, 255, 1)\">this</span>, tr(<span style=\"color: rgba(128, 0, 0, 1)\">\"</span><span style=\"color: rgba(128, 0, 0, 1)\">保存为...</span><span style=\"color: rgba(128, 0, 0, 1)\">\"</span>), tr(<span style=\"color: rgba(128, 0, 0, 1)\">\"</span><span style=\"color: rgba(128, 0, 0, 1)\">D://成绩.pdf</span><span style=\"color: rgba(128, 0, 0, 1)\">\"</span>), tr(<span style=\"color: rgba(128, 0, 0, 1)\">\"</span><span style=\"color: rgba(128, 0, 0, 1)\">PDF格式(*.pdf)</span><span style=\"color: rgba(128, 0, 0, 1)\">\"</span><span style=\"color: rgba(0, 0, 0, 1)\">)); printer.setOutputFileName(filepath); QTextDocument textDocument; textDocument.setHtml(MakeDataToHtml()); textDocument.print(</span>&<span style=\"color: rgba(0, 0, 0, 1)\">printer); QMessageBox::about(</span><span style=\"color: rgba(0, 0, 255, 1)\">this</span>, tr(<span style=\"color: rgba(128, 0, 0, 1)\">\"</span><span style=\"color: rgba(128, 0, 0, 1)\">提示</span><span style=\"color: rgba(128, 0, 0, 1)\">\"</span>), tr(<span style=\"color: rgba(128, 0, 0, 1)\">\"</span><span style=\"color: rgba(128, 0, 0, 1)\">保存成功</span><span style=\"color: rgba(128, 0, 0, 1)\">\"</span>));</pre> </div> <span class=\"cnblogs_code_collapse\">View Code</span></div> <p>3.使用打印机打印</p> <div class=\"cnblogs_code\"><img id=\"code_img_closed_ce7beaa2-b702-41b6-bb1c-0db71f11f44c\" class=\"code_img_closed\" src=\"https://images.cnblogs.com/OutliningIndicators/ContractedBlock.gif\" alt=\"\"><img id=\"code_img_opened_ce7beaa2-b702-41b6-bb1c-0db71f11f44c\" class=\"code_img_opened\" style=\"display: none\" src=\"https://images.cnblogs.com/OutliningIndicators/ExpandedBlockStart.gif\" alt=\"\"> <div id=\"cnblogs_code_open_ce7beaa2-b702-41b6-bb1c-0db71f11f44c\" class=\"cnblogs_code_hide\"> <pre><span style=\"color: rgba(0, 128, 128, 1)\">1</span> <span style=\"color: rgba(0, 0, 0, 1)\"> QPrinter printer; </span><span style=\"color: rgba(0, 128, 128, 1)\">2</span> <span style=\"color: rgba(0, 0, 0, 1)\"> printer.setPageSize(QPrinter::A4); </span><span style=\"color: rgba(0, 128, 128, 1)\">3</span> QPrintDialog printDialog(&printer, <span style=\"color: rgba(0, 0, 255, 1)\">this</span><span style=\"color: rgba(0, 0, 0, 1)\">); </span><span style=\"color: rgba(0, 128, 128, 1)\">4</span> <span style=\"color: rgba(0, 0, 255, 1)\">if</span><span style=\"color: rgba(0, 0, 0, 1)\"> (printDialog.exec()){ </span><span style=\"color: rgba(0, 128, 128, 1)\">5</span> <span style=\"color: rgba(0, 0, 0, 1)\"> QTextDocument textDocument; </span><span style=\"color: rgba(0, 128, 128, 1)\">6</span> <span style=\"color: rgba(0, 0, 0, 1)\"> textDocument.setHtml(MakeDataToHtml()); </span><span style=\"color: rgba(0, 128, 128, 1)\">7</span> textDocument.print(&<span style=\"color: rgba(0, 0, 0, 1)\">printer); </span><span style=\"color: rgba(0, 128, 128, 1)\">8</span> }</pre> </div> <span class=\"cnblogs_code_collapse\">View Code</span></div> <p> </p> </div> <div class=\"clear\"></div> <div id=\"blog_post_info_block\" role=\"contentinfo\"> <div id=\"blog_post_info\"></div> <div class=\"clear\"></div> <div id=\"post_next_prev\"></div> </div> </div> <div class=\"postDesc\">posted @ <span id=\"post-date\" data-last-update-days=\"3135.907360063955\" data-date-created=\"BlogServer.Application.Dto.BlogPost.BlogPostDto\" data-date-updated=\"2014-11-19 11:47\">2014-11-19 11:47</span> <a href=\"https://www.cnblogs.com/jck34/\">恒月美剑</a> 阅读(<span id=\"post_view_count\">7626</span>) 评论(<span id=\"post_comment_count\">0</span>) <a href=\"https://i.cnblogs.com/EditPosts.aspx?postid=4107885\" rel=\"nofollow\">编辑</a> <a href=\"javascript:void(0)\" onclick=\"AddToWz(4107885);return false;\">收藏</a> <a href=\"javascript:void(0)\" onclick=\"reportManager.report({ currentUserId: '', targetType: 'blogPost', targetId: '4107885', targetLink: 'https://www.cnblogs.com/jck34/p/4107885.html', title: '使用QPrinter生成pdf或用打印机打印数据' })\">举报</a> </div> </div> </div><!--end: topics 文章、评论容器--> </div> <script> var cb_entryId = 4107885, cb_entryCreatedDate = '2014-11-19 11:47', cb_postType = 1, cb_postTitle = '使用QPrinter生成pdf或用打印机打印数据'; var allowComments = true, cb_blogId = 129889, cb_blogApp = 'jck34', cb_blogUserGuid = 'fa1e24e0-c7fc-e011-b7b9-842b2b196315'; mermaidRender.render() markdown_highlight() zoomManager.apply(\"#cnblogs_post_body img:not(.code_img_closed):not(.code_img_opened)\"); updatePostStats( [cb_entryId], function(id, count) { $(\"#post_view_count\").text(count) }, function(id, count) { $(\"#post_comment_count\").text(count) }); </script> <a id=\"!comments\"></a> <div id=\"blog-comments-placeholder\"></div> <div id=\"comment_form\" class=\"commentform\"> <a name=\"commentform\"></a> <div id=\"divCommentShow\"></div> <div id=\"comment_nav\"><span id=\"span_refresh_tips\"></span><a href=\"javascript:void(0);\" onclick=\"return RefreshCommentList();\" id=\"lnk_RefreshComments\" runat=\"server\" clientidmode=\"Static\">刷新评论</a><a href=\"#\" onclick=\"return RefreshPage();\">刷新页面</a><a href=\"#top\">返回顶部</a></div> <div id=\"comment_form_container\"></div> <div class=\"ad_text_commentbox\" id=\"ad_text_under_commentbox\"></div> <div id=\"cnblogs_ch\"></div> <div id=\"opt_under_post\"></div> <div id=\"cnblogs_c1\" class=\"under-post-card\"> <div id='div-gpt-ad-1592365906576-0' style='width: 300px; height: 250px;'></div> </div> <div id=\"under_post_card1\"></div> <div id=\"under_post_card2\"></div> <div id=\"HistoryToday\" class=\"under-post-card\"></div> <script type=\"text/javascript\"> var commentManager = new blogCommentManager(); commentManager.renderComments(0); fixPostBody(); window.footnoteTipManager.generateFootnoteTips(); window.tocManager.displayDisableTocTips = false; window.tocManager.generateToc(); setTimeout(function() { countViews(cb_blogId, cb_entryId); }, 50); deliverT2(); deliverC1C2(); loadNewsAndKb(); LoadPostCategoriesTags(cb_blogId, cb_entryId); LoadPostInfoBlock(cb_blogId, cb_entryId, cb_blogApp, cb_blogUserGuid); GetPrevNextPost(cb_entryId, cb_blogId, cb_entryCreatedDate, cb_postType); loadOptUnderPost(); GetHistoryToday(cb_blogId, cb_blogApp, cb_entryCreatedDate); </script> </div> </div><!--end: forFlow --> </div><!--end: mainContent 主体内容容器--> <div id=\"sideBar\"> <div id=\"sideBarMain\"> <div id=\"sidebar_c3\"></div> <div id=\"blog-calendar\" style=\"display:none\"></div><script>loadBlogDefaultCalendar();</script> <div id=\"leftcontentcontainer\"> <div id=\"blog-sidecolumn\"></div> <script>loadBlogSideColumn();</script> </div> </div><!--end: sideBarMain --> </div><!--end: sideBar 侧边栏容器 --> <div class=\"clear\"></div> </div><!--end: main --> <div class=\"clear\"></div> <div id=\"footer\"> <!--done--> Copyright © 2023 恒月美剑 <br /><span id=\"poweredby\">Powered by .NET 7.0 on Kubernetes</span> </div><!--end: footer --> </div><!--end: home 自定义的最大容器 --> <input type=\"hidden\" id=\"antiforgery_token\" value=\"CfDJ8DuWIYDefEVJtUW7VadsHY-2Fye1QezlhEEVzwf4BIAto_lRZOfX9wGbBy4fu2ScJJQPOtCOBAXoucEDxhmBLc81RuqDLBYJl6L4KXZX5UpyTUIgn9ryKlS7Jppum0cU5xIXgBETXNMFddHH72Kdpjo\" /> <script async src=\"https://www.googletagmanager.com/gtag/js?id=UA-476124-1\"></script> <script> window.dataLayer = window.dataLayer || []; function gtag(){dataLayer.push(arguments);} gtag('js', new Date()); var kv = getGACustom(); if (kv) { gtag('set', kv); } gtag('config', 'UA-476124-1'); </script> <script defer src=\"https://hm.baidu.com/hm.js?866c9be12d4a814454792b1fd0fed295\"></script> </body> </html>");
textDocument.setHtml(html);
textDocument.print(&printer);
// }
}
/***
* redis读写测试
*
* ***/
void MainWindow::b_RedisReadWrite_clicked(){
qDebug()<<"Redis读写测试按钮被按下"<<endl;
//获取输入框地址，进行redis数据库连接，并且进行数据库key value的写入后读取测试
if(redis->connected){
QString saveKey = ui->t_SaveKey->text();
QString saveVal = ui->t_SaveValue->text();
if(saveKey.isEmpty() || saveVal.isEmpty()){
QMessageBox::information(this,"Redis读写测试","数据Key和Value不能为空！");
}else{
Base64::Encrypt_s(saveVal);
redis->set(saveKey,saveVal);
QString result = redis->get(saveKey);
if(result.isEmpty()){result = "";}
Base64::Decrypt_s(result);
ui->t_Result->setText(result);
QMessageBox::information(this,"Redis读写测试","读写完成！");
}
}else{
QMessageBox::information(this,"Redis读写测试","Redis数据库尚未连接！");
}
}
/***
* UDP监听开始
*
* ***/
bool MainWindow::udpBegin(){
if(!udpListening){
quint16 port = this->udpPort.toInt();
if(udpReceiveSocket->bind(port)){
this->udpListening = true;
return true;
}else{
this->udpListening = false;
return false;
}
}
return true;
}
/***
* udp监听结束
*
* ***/
bool MainWindow::udpEnd(){
if(udpListening){
udpReceiveSocket->close();
this->udpListening = false;
}
return true;
}
/***
* udp监听开始按钮事件
*
* ***/
void MainWindow::b_UDPBegin_clicked(){
if(!udpListening){
if(udpBegin()){
QMessageBox::information(this,"UDP监听测试","开始监听端口[" + this->udpPort + "]！");
}else{
QMessageBox::information(this,"UDP监听测试","绑定端口[" + this->udpPort + "]失败！");
}
}
}
/***
* udp监听结束按钮事件
*
* ***/
void MainWindow::b_UDPEnd_clicked(){
if(udpListening){
udpEnd();
QMessageBox::information(this,"UDP监听测试","UDP监听结束！");
}
}
/***
* 开机启动事件
* **/
void MainWindow::c_openWithSystem_toggled(){
if(ui->c_openWithSystem->checkState() == this->openWithSystem) return;
if(ui->c_openWithSystem->checkState()){
// 开机启动
this->openWithSystem = true;
settings->setValue("system/open","true");
}else{
this->openWithSystem = false;
settings->setValue("system/open","false");
}
this->setOpenWithSystem();
settings->sync();
QMessageBox::information(this,"开机启动设置","设置成功！");
}
/***
* 设置开机启动的函数
* ***/
#define AUTO_RUN "HKEY_CURRENT_USER\\Software\\Microsoft\\Windows\\CurrentVersion\\Run"
void MainWindow::setProcessAutoRun(const QString &appPath,bool flag)
{
QSettings settings(AUTO_RUN, QSettings::NativeFormat);
//以程序名称作为注册表中的键,根据键获取对应的值（程序路径）
QFileInfo fInfo(appPath);
QString name = fInfo.baseName(); //键-名称
//如果注册表中的路径和当前程序路径不一样，则表示没有设置自启动或本自启动程序已经更换了路径
QString oldPath = settings.value(name).toString(); //获取目前的值-绝对路劲
QString newPath = QDir::toNativeSeparators(appPath); //toNativeSeparators函数将"/"替换为"\"
if(flag)
{
if (oldPath != newPath)
settings.setValue(name, newPath);
}
else
settings.remove(name);
}
/***
* 设置开机启动状态
* ***/
void MainWindow::setOpenWithSystem(){
if(openWithSystem){
setProcessAutoRun(this->appSource,1);
}else{
setProcessAutoRun(this->appSource,0);
}
}
/***
* UDP监听事件
* 如果是测试，接收信息为 "DEBUG"
* 正常接收
* redis 数据的ID |-> 服务名称 |-> 调用方法名 |-> 参数列表...
* 正常返回
* 方法返回值 |-> 参数列表...
* 返回中参数列表包含了回调函数返回信息
* 处理UDP信息会是单线程，当处理UDP信息时，dealing将会设置为true停止处理后续的UDP信息
* ***/
void MainWindow::onSocketReadyRead(){
while(udpReceiveSocket->hasPendingDatagrams() && !dealing)
{
QByteArray datagram;
datagram.resize(udpReceiveSocket->pendingDatagramSize()); //数据格式统一
QHostAddress peerAddr;
quint16 peerPort;
udpReceiveSocket->readDatagram(datagram.data(),
datagram.size(),&peerAddr,&peerPort); //接收数据
QString str(datagram.data()); //数据转换为QT的ui界面使用的QString类型
qDebug() << str;
Base64::Decrypt_s(str);
qDebug() << str;
if(!str.isEmpty() || str.indexOf(this->split) != -1){
//当执行相关命令时，就废弃掉处理期间的所有命令 命令进行base64解密
command = str;
qDebug() << command;
//命令格式： 服务名
QStringList cmdList = str.split(this->split);
if(cmdList[0] == "DEBUG"){
ui->t_UDPInfo->setText(ui->t_UDPInfo->toPlainText() + this->containCommands(cmdList,1) + " \n" );
}else{
this->service(cmdList);
}
}
}
}
/***
*
* 对指令进行操作
* 调用对应服务，获取返回结果
* 写入redis中
*
* **/
void MainWindow::service(QStringList cmd)
{
// 入参： redis中的数据ID|->服务名称|->函数名|->服务参数1|->服务参数2 ...
// 出餐： 方法返回参数|->传入参数1|->传入参数2|->传入参数3 ... 返回传入参数是为了解决
this->dealing = true;
QString id = cmd[0];
if(id.isEmpty()){
return;
}
cmd.removeFirst();
QString result = provider->service(cmd,this->split);
Base64::Encrypt_s(result);
redis->set(id,result);
qDebug()<< "id:"+id+" \n result:"+result <<endl;
this->dealing = false;
return;
}
/***
* 封装的方法，用split指定的符号隔开返回结果，组装成一条装进redis的字符串数据
*
* ***/
QString MainWindow::containCommands(QStringList list,int begin){
QString str;
if(list.size() < begin){return "";}
for(int i = 0; i< list.size();++i)
{
if(i >= begin){
if(str.isEmpty()){
str = list[i];
}else{
str.append(this->split);
str.append(list[i]);
}
}
}
return str;
}
/***
* 窗口最小化
* ***/
void MainWindow::a_mini_triggered(){
this->winhide();
}
/***
* 窗口关闭
* ***/
void MainWindow::a_close_triggered(){
this->closeApp();
}
/***
* 双击任务栏小图标，显示和隐藏窗口
* ***/
void MainWindow::onTrayIconActivated(QSystemTrayIcon::ActivationReason reason)
{
if (reason == QSystemTrayIcon::DoubleClick) {
// 双击任务栏图标显示/隐藏主页面
if (isVisible()) {
this->winhide();
} else {
this->winshow();
}
}
}
/***
* 页面解锁，固定密码 lingyl
* ***/
void MainWindow::t_psw_entered(QString key){
QString value = this->ui->t_psw->text();
if(key == "lingyl"){
this->ui->frame->hide();
}
}
/***
* 窗口隐藏，并且上锁
* ***/
void MainWindow::winhide(){
hide();
this->ui->t_psw->setText("");
this->ui->frame->showNormal();
}
/***
* 窗口显示，并且上锁
* ***/
void MainWindow::winshow(){
showNormal();
this->ui->t_psw->setText("");
this->ui->frame->showNormal();
}
/***
* 关闭程序，回收相关资源
* ***/
void MainWindow::closeApp()
{
// 回收相关资源
qDebug().noquote() << "Redis 连接 释放开始"<<endl;
redis->freeRedis();
qDebug().noquote() << "Redis 连接 释放结束"<<endl;
this->udpEnd();
qDebug().noquote() << "udp结束监听"<<endl;
qDebug()<<"closing"<<endl;
app->exit(0);
}
/***
* 窗口关闭事件，此事件不会退出程序，而是隐藏页面
* ***/
void MainWindow::closeEvent(QCloseEvent *event)
{
// 关闭事件交由任务栏图标处理
event->ignore();
this->winhide();
}
/***
* 服务 调用测试 按钮事件
*
* ***/
void MainWindow::on_b_servictest_clicked()
{
QStringList params;
QString servicename = this->ui->t_servicename->text();
QString funname = this->ui->t_funname->text();
if(servicename.isEmpty() || funname.isEmpty()){
this->ui->t_servicereturn->setText("服务名和调用的函数不能为空！");
return;
}
params.append(servicename);
params.append(funname);
params.append(this->ui->t_param1->text());
params.append(this->ui->t_param2->text());
params.append(this->ui->t_param3->text());
params.append(this->ui->t_param4->text());
params.append(this->ui->t_param5->text());
params.append(this->ui->t_param6->text());
params.append(this->ui->t_param7->text());
params.append(this->ui->t_param8->text());
QString res = provider->service(params,this->split);
if(res.isEmpty()){
this->ui->t_servicereturn->setText("返回结果为空！");
}else{
this->ui->t_servicereturn->setText(res);
}
return ;
}
/***
* udp信息发送测试按钮事件
*
* ***/
void MainWindow::on_b_UDPSend_clicked()
{
qDebug()<<"发送UDP测试信息";
quint16 targetPort = this->udpPort.toInt();
QString str = "DEBUG" + this->split + this->ui->t_UDPSend->toPlainText();
if(str.isEmpty()){
str = QString("DEBUG" + this->split + "测试信息").toUtf8();
}
Base64::Encrypt_s(str);
qDebug()<<str;
QHostAddress targetAddr(QString("127.0.0.1"));
udpSendSocket->writeDatagram(str.toUtf8(), targetAddr, targetPort);
}
/***
* redis连接测试
*
* ***/
void MainWindow::on_b_TestRedis_clicked()
{
qDebug()<<"Redis连接测试按钮被按下"<<endl;
QString address = ui->t_RedisAddress->text();
if(!address.isEmpty()){
Redis * red;
red = new Redis(address,6379);
if(red->connected){
red->freeRedis();
QMessageBox::information(this,"Redis连接测试","连接成功！");
}else{
QMessageBox::information(this,"Redis连接测试","连接失败！");
}
}
}
/***
* 将测试成功的Redis设置到当前
*
* **/
void MainWindow::on_b_SetRedis_clicked()
{
qDebug()<<"Redis设置按钮被按下"<<endl;
QString address = ui->t_RedisAddress->text();
int port = ui->t_RedisPort->text().toInt();
if(!address.isEmpty() && port > 0){
Redis * red;
red = new Redis(address,port);
if(red->connected){
red->freeRedis();
redis = new Redis(address,port);
settings->setValue("redis/ip",address);
settings->setValue("redis/port",port);
settings->sync();
QMessageBox::information(this,"Redis设置","设置成功！");
}else{
QMessageBox::information(this,"Redis设置","连接失败，无法设置！！");
}
}else{
QMessageBox::information(this,"Redis设置","请输入正确的ip和端口！");
}
}
/***
* 更换当前监听的端口，并且保存到本地文件
* **/
void MainWindow::on_b_updateUDPPort_clicked()
{
if(!this->udpEnd()){
QMessageBox::information(this,"UDP监听端口设置","关闭当前UDP监听失败！");
return;
}
QString port = ui->t_newUDPPort->text();
if(port.isEmpty()){
QMessageBox::information(this,"UDP监听端口设置","端口不能为空！");
return;
}
this->udpPort = port;
if(!this->udpBegin()){
QMessageBox::information(this,"UDP监听端口设置","启动UDP监听失败！");
return;
}
settings->setValue("udp/port",port);
settings->sync();
QMessageBox::information(this,"UDP监听端口设置","设置成功！");
}
/***
* 确定可以给更新，然后打开自动更新程序，并且关闭当前程序
* ***/
void MainWindow::autoUpdate()
{
QString program = dir + "/" + "autoUpdate.exe";
QFileInfo updateFile(program);
if(updateFile.exists() && !this->updateServiceURL.isEmpty()){
QStringList arguments;
QProcess updateProcess;
arguments<< this->updateServiceURL << this->updateType << this->appSource ;
updateProcess.start(program, arguments);
this->closeApp();
}
}
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