C # automatically updates local programs

About Automatic Updates to the system. In recent days, it is necessary to overwrite the latest version of the Java backend system file with the local client, the abbreviation is automatically updated.

Local will get the current system version number to request the background Java interface data. Back to me is the Base64 byte stream that the background compression packet goes to.

The client will need to update the local program to get the new version.

if " Version.txt " " U.zip " ))             {                application.exit ();            }

 　　　　  /// <summary>        ///read local version request update/// </summary>        /// <param name= "Document" >read the file information</param>        /// <param name= "Zippath" >return Zip package local path</param>        /// <returns></returns>        Private BOOLUpdateSystem (stringDocumentstringZippath) {            Try{Dictionary<string,string> postdic =Newdictionary<string,string>(); //get the version number within the file                if(file.exists (document)) {Postdic.add ("version", File.readalltext (document).                Trim ()); }                Else{Postdic.add ("version","0"); }                stringPostjson =Jsonconvert.serializeobject (postdic); stringurl = getappsettingvalue ("ServerURL") +"parkclient/parkclientupdate"; //the JSON data returnedJobject obj =(Jobject) jsonconvert.deserializeobject (postdata (Postjson, url)); stringNewVersion = obj["version"].                ToString (); if(!String.isnullorwhitespace (newversion)) {                    byte[] Bytesfile = convert.frombase64string (obj["ByteArray"].                    ToString ()); if(obj["clientMD5"]. ToString () = =bitconverter.tostring (NewSystem.Security.Cryptography.MD5CryptoServiceProvider (). ComputeHash (Bytesfile)). Replace ("-","") {zipcoverage (bytesfile, Zippath);                       File.writealltext (document, newversion);                     }                }                return true; }            Catch(Exception ex) {MessageBox.Show (ex).                Message); return false; }        }        /// <summary>        ///Unzip zip package overwrite update/// </summary>        /// <param name= "bytes" >Accept byte information for update package</param>        /// <param name= "Zpath" >the path covered</param>        Private voidZipcoverage (byte[] Bytes,stringZpath)            {file.writeallbytes (Zpath, bytes); using(Ziparchive archive =Zipfile.openread (Zpath)) {                stringFile =NULL; foreach(Ziparchiveentry entryinchArchive. Entries) {if(!entry. Fullname.endswith ("/") ) {file=Path.Combine (Application.startuppath, entry.                        FullName); if(file.exists (file)) {file.delete (file); }}}} zipfile.extracttodirectory (Zpath, Application.startuppath)           ;         }        /// <summary>        ///get the configuration in the appsettings section in the configuration file/// </summary>        /// <param name= "Appsettingkey" ></param>        /// <param name= "message" ></param>        /// <returns></returns>        Private stringGetappsettingvalue (stringAppsettingkey) {Execonfigurationfilemap Map=NewExeconfigurationfilemap {execonfigfilename =@"TDH. Parking.Client.exe.config" }; returnconfigurationmanager.openmappedexeconfiguration (map, Configurationuserlevel.none). Appsettings.settings[appsettingkey].        Value; }

byte [] Bytesfile = convert.frombase64string (obj["byteArray"]. ToString ());

Here is the byte stream to get.

This method can be used to solve multiple projects in the same solution that can read the app. config file under the same project.

Note: There is a reference to the class library, which is used to manipulate the compressed package.

Next idea: The first step is actually to get the compressed packet of the byte stream to save to the local, the second step is to loop through the package of files to replace the local files, complete the local System version update.

Whether simple or complex, we need to step forward.

C # automatically updates local programs