博客网站开发源代码,西宁网站建设企业,wordpress网站如何app,地产政策最新消息需求#xff1a;
公司内部的一个客户端工具#xff0c;想加上一个自动升级功能。
服务端#xff1a;
1#xff0c;服务端使用python3.7 #xff0c;搭配 fastapi 和uvicorn 写一个简单的服务#xff0c;开出一个get接口#xff0c;用于客户端读取安装包的版本#…需求
公司内部的一个客户端工具想加上一个自动升级功能。
服务端
1服务端使用python3.7 搭配 fastapi 和uvicorn 写一个简单的服务开出一个get接口用于客户端读取安装包的版本描述和路径。
2使用 python 自带的 http.server 启动一个文件服务器将安装包存入并将地址写到步骤1的json文件中。
json文件长这个样子每次客户端都解析这个文件如果最新的版本大于当前的版本则从url下载文件并自动执行文件。
{ver:1.0.1,desc:1.优化界面\n2.删除了什么东西\n3.增加了什么东西把\n4.添加了什么东西\n5.特别好用 试试吧,file:test_1_0.exe,url:http://xxx.xxx.xxx:8002/pkg/test/WinSCP.exe
}
服务很简单 主要就是提供一个get接口。
from fastapi import FastAPI
import jsonclass MyApp:def __init__(self, title: str UpgradeServer, version: str 1.0.0):self.app FastAPI(titletitle, versionversion)# Additional initialization or configuration can be done heredef configure_routes(self):self.app.get(/)def root():return {不为无益之事何以遣有涯之生!}self.app.get(/cur_ver/{item})def cur_ver(item:strNone):path pkg/item/item.jsonwith open(path, r) as file:# 从文件中加载JSON数据data json.load(file)print(data[ver])return datadef run(self, host: str 0.0.0.0, port: int 8001):import uvicornuvicorn.run(self.app, hosthost, portport)if __name__ __main__:my_app MyApp()my_app.configure_routes()my_app.run()
客户端
1客户端是一个 QDialog每次启动时 从服务端获取最新的版本号大于则开始下载安装包下载完成后则执行安装包。 2使用的时候 将客户端放到main函数中并传入当前的版本号。 //.h 文件
#ifndef UPGRADECLIENT_H
#define UPGRADECLIENT_H#include QDialog
#include QNetworkAccessManager
#include QNetworkRequest
#include QNetworkReply
#include QThread
#include QMutex
#include QEventLoop
#include QFilenamespace Ui {
class UpgradeClient;
}enum class Status{Init,Error,NeedUpgrade,NoUpgradde,Abandon,DownloadFinished,
};class UpgradeClient : public QDialog
{Q_OBJECTpublic:explicit UpgradeClient(const QString ver,QWidget *parent nullptr);~UpgradeClient();int start();private slots:void on_laterBtn_clicked();void on_nowBtn_clicked();private:Ui::UpgradeClient *ui;QNetworkAccessManager manager;QNetworkReply *verReply{nullptr};QNetworkReply *downloadReply{nullptr};//当前版本QString curVer;//最新版本 描述 名称 urlQString latestVer;QString pkgDesc;QString pkgName;QString pkgUrl;//判断当前状态Status curStatus{Status::Init};//安装包存储文件QFile pkgFile;//事件循环 用于等待版本检擦QEventLoop eventLoop;private://检查当前版本void checkVer();//下载安装包void downloadPkg(const QString _name,const QString _url);//解析json数据void parseJson(const QByteArray jsonData);//比较版本bool compareVer(int lMajor,int lMinor,int lPath,int cMajor,int cMinor,int cPath);//运行安装包bool runPkg(const QString filename);protected:void closeEvent(QCloseEvent *event) override;};#endif // UPGRADECLIENT_H//cpp 文件
#include upgradeclient.h
#include ui_upgradeclient.h
#include QFile
#include QJsonDocument
#include QJsonObject
#include QJsonArray
#include QtConcurrent
#include chrono//检查版本 url
const QString checkVerUrl{http://xxx.xxx.xxx:8001/cur_ver/test};UpgradeClient::UpgradeClient(const QString ver,QWidget *parent) :QDialog (parent),ui(new Ui::UpgradeClient),curVer(ver)
{ui-setupUi(this);this-setWindowTitle(QStringLiteral(检测到需要升级));ui-progressBar-setHidden(true);
}UpgradeClient::~UpgradeClient()
{qDebug()~UpgradeClient();delete ui;
}int UpgradeClient::start()
{checkVer();eventLoop.exec();if(curStatusStatus::NeedUpgrade){this-exec();if(curStatusStatus::DownloadFinished){return 0;}}else{this-reject();}return -1;
}void UpgradeClient::on_laterBtn_clicked()
{curStatus Status::Abandon;this-reject();
}void UpgradeClient::on_nowBtn_clicked()
{if(pkgName.isEmpty())return;downloadPkg(pkgName,pkgUrl);ui-laterBtn-setEnabled(false);ui-nowBtn-setEnabled(false);
}void UpgradeClient::checkVer()
{curStatus Status::Init;QUrl url;url.setUrl(checkVerUrl);QNetworkRequest request(url);verReply manager.get(request);QObject::connect(verReply, QNetworkReply::finished, this,[]() {if (verReply-error() QNetworkReply::NoError) {QByteArray responseData verReply-readAll();qDebug() Response: responseData;parseJson(responseData);} else {qDebug() Error: verReply-errorString();curStatus Status::Error;}eventLoop.quit();});
}void UpgradeClient::downloadPkg(const QString _name,const QString _url)
{QUrl url;url.setUrl(_url);QNetworkRequest request(url);QString currentPath QCoreApplication::applicationDirPath();QString filename currentPath/_name;pkgFile.setFileName(filename);if (pkgFile.open(QIODevice::WriteOnly)){downloadReply manager.get(request);connect(downloadReply, QNetworkReply::downloadProgress, this, [](qint64 bytesReceived, qint64 bytesTotal){if(bytesTotal!0){int progress static_castint((bytesReceived * 100) / bytesTotal);qDebug()process progress;ui-progressBar-setHidden(false);ui-progressBar-setValue(progress);}});connect(downloadReply,QNetworkReply::readyRead,this,[](){pkgFile.write(downloadReply-readAll());});connect(downloadReply, QNetworkReply::finished, this, [,filename](){if(curStatusStatus::Abandon)return;if (verReply-error() QNetworkReply::NoError){pkgFile.flush();pkgFile.close();if(ui-progressBar-value()98){curStatus Status::Error;ui-logLabel-setText(QStringLiteral(下载安装包出错));}else{if(!this-runPkg(filename)){curStatus Status::Error;ui-logLabel-setText(QStringLiteral(安装程序执行失败));}else{curStatus Status::DownloadFinished;this-accept();}}}else{curStatus Status::Error;qDebug() Error: downloadReply-errorString();ui-logLabel-setText(QStringLiteral(下载出错:)downloadReply-errorString());}});}else {qDebug() Error: Could not open file for writing;curStatus Status::Error;this-reject();}
}void UpgradeClient::parseJson(const QByteArray jsonData)
{QJsonDocument jsonDocument QJsonDocument::fromJson(jsonData);if (!jsonDocument.isNull()) {if (jsonDocument.isObject()) {QJsonObject jsonObject jsonDocument.object();latestVer jsonObject[ver].toString();pkgDesc jsonObject[desc].toString();pkgName jsonObject[file].toString();pkgUrl jsonObject[url].toString();qDebug()curVer:curVer latestVer:latestVer;QStringList latestV latestVer.split(.);QStringList curV curVer.split(.);if(latestV.size()3curV.size()3){int lMajorV latestV.at(0).toUInt();int lMinorV latestV.at(1).toUInt();int lPathV latestV.at(2).toUInt();int cMajorV curV.at(0).toUInt();int cMinorV curV.at(1).toUInt();int cPathV curV.at(2).toUInt();if(compareVer(lMajorV,lMinorV,lPathV,cMajorV,cMinorV,cPathV)){ui-textEdit-append(QStringLiteral(最新版本:%1\n).arg(latestVer));ui-textEdit-append(pkgDesc);curStatus Status::NeedUpgrade;}else{curStatus Status::NoUpgradde;}}else{curStatus Status::Error;}}else{curStatus Status::Error;}} else {qDebug() Error: Failed to parse JSON data;curStatus Status::Error;}
}bool UpgradeClient::compareVer(int lMajor, int lMinor, int lPath, int cMajor, int cMinor, int cPath)
{int localVersion[3]{cMajor,cMinor,cPath};int latestVersion[3]{lMajor,lMinor,lPath};int k memcmp(localVersion,latestVersion,sizeof(int)*3);qDebug()compareVer k;if(k0){return false;}else if(k0){return true;}else{return false;}
}bool UpgradeClient::runPkg(const QString filename)
{QStringList arguments;bool success QProcess::startDetached(filename,arguments);if (success) {qDebug() External program started as a detached process.;} else {qDebug() Failed to start external program.;}return success;
}void UpgradeClient::closeEvent(QCloseEvent *event)
{qDebug()closeEvent;curStatus Status::Abandon;if(verReply){verReply-close();verReply-deleteLater();}if(downloadReply){downloadReply-close();downloadReply-deleteLater();}if(pkgFile.isOpen()){pkgFile.close();}QDialog::closeEvent(event);
}//ui文件
?xml version1.0 encodingUTF-8?
ui version4.0classUpgradeClient/classwidget classQWidget nameUpgradeClientproperty namegeometryrectx0/xy0/ywidth409/widthheight240/height/rect/propertyproperty namewindowTitlestringForm/string/propertylayout classQGridLayout namegridLayoutitem row0 column0widget classQTextEdit nametextEditproperty namereadOnlybooltrue/bool/property/widget/itemitem row1 column0widget classQProgressBar nameprogressBarproperty namevaluenumber0/number/propertyproperty nametextVisiblebooltrue/bool/propertyproperty nameinvertedAppearanceboolfalse/bool/propertyproperty nameformatstring%p%/string/property/widget/itemitem row2 column0layout classQHBoxLayout namehorizontalLayoutitemwidget classQLabel namelogLabelproperty nametextstring//property/widget/itemitemspacer namehorizontalSpacerproperty nameorientationenumQt::Horizontal/enum/propertyproperty namesizeHint stdset0sizewidth40/widthheight20/height/size/property/spacer/itemitemwidget classQPushButton namenowBtnproperty nametextstring现在/string/property/widget/itemitemwidget classQPushButton namelaterBtnproperty nametextstring稍后/string/property/widget/item/layout/item/layout/widgetresources/connections/
/ui 效果
1启动检测升级。 2 点击 【现在】 开始下载 安装包。 docker 部署一下服务端
1. 下载镜像:docker pull python3.7 2. 启动容器:docker run -it -p 8001:8001 -p 8002:8002 --name upgrade python:3.7 /bin/bash 3. 安装环境:pip3.7 install fastapi pip3.7 install uvicorn 4. 拷贝文件:docker cp upgrade upgrade:/home 5. 退出容器:CtrlPQ
