• C#Winform使用mysql作为本地数据库


    MYSQL是老牌关系型数据库,在受够了sqlite,mslocaldb,sqlce等本地数据库之后,发现了mysql5.6的一些版本也可以绿色安装,编程实现从资源文件里面解压到目标机器上,并配置好成为本机系统服务。并且EF的mysql驱动对code first支持非常好。于是探索出了用mysql来做本地数据库的方法。

    my.ini配置

    [client]
    port=3308
    [mysql]
    default-character-set=gbk
    
    [mysqld]
    port=3308
    basedir="%BaseDir%"
    datadir="%BaseDir%data/"
    character-set-server=gbk
    default-storage-engine=MyISAM
    sql-mode="NO_AUTO_CREATE_USER,NO_ENGINE_SUBSTITUTION"
    max_connections=512
    
    query_cache_size=0
    table_cache=256
    tmp_table_size=18M
    
    thread_cache_size=8
    myisam_max_sort_file_size=64G
    myisam_sort_buffer_size=35M
    key_buffer_size=25M
    read_buffer_size=256K
    read_rnd_buffer_size=64M
    sort_buffer_size=256M
    
    innodb_additional_mem_pool_size=24M
    
    innodb_flush_log_at_trx_commit=1
    innodb_log_buffer_size=12M
    
    innodb_buffer_pool_size=47M
    innodb_log_file_size=24M
    innodb_thread_concurrency=8

    从资源文件里面解压mysql

    /// <summary>
            /// 检查MySQL服务是否运行,如果没有安装MySQL自动解压并初始化
            /// </summary>
            private static void InitMysqlService()
            {
                WaitUI.WorkMessage = "第一次使用系统,正在初始化本地数据库...";
                byte[] zipfile = (byte[])Properties.Resources.ResourceManager.GetObject("MySQLx86");
                System.IO.File.WriteAllBytes("MySQLx86.zip", zipfile);
                UnZip("MySQLx86.zip", "", "", true);
                #region 初始化MySQL
                try
                {
                    string physicalRoot = AppDomain.CurrentDomain.BaseDirectory + "MySQLx86\";
                    //1.修改my.ini配置  为防止本机已装mysql,特修改my.ini中端口号为3308
                    string iniFile = System.IO.File.ReadAllText(physicalRoot + "my.ini");
                    iniFile = iniFile.Replace("%BaseDir%", physicalRoot.Replace("\", "/")); //%BaseDir%为my.ini中自定义的目录参数
                    System.IO.File.WriteAllText(physicalRoot + "my.ini", iniFile);
                    //2.创建win服务
                    string info1 = Execute(physicalRoot + "bin\mysqld.exe" + " install MySQLd --defaults-file="" + physicalRoot + "my.ini"", 0);
                    Debug.WriteLine(info1);
                    //3.启动服务
                    string info2 = Execute("net start MySQLd", 0);
                    Debug.WriteLine(info2);
                }
                catch (Exception ex)
                {
                    Debug.WriteLine(ex.Message);
                }
                finally
                {
                    System.IO.File.Delete("MySQLx86.zip");
                    ServiceController serviceController = ServiceController.GetServices().Where(sc => sc.ServiceName.Equals("MySQLd")).FirstOrDefault();
                    if (serviceController != null && serviceController.Status != ServiceControllerStatus.Running)
                    {
                        serviceController.Start();
                    }
                }
                #endregion 
            }
    /// <summary>
            /// 解压文件
            /// </summary>
            /// <param name="zipedFile"></param>
            /// <param name="strDirectory"></param>
            /// <param name="password"></param>
            /// <param name="overWrite"></param>
            private static void UnZip(string zipedFile, string strDirectory, string password, bool overWrite)
            {
                if (strDirectory == "")
                    strDirectory = Directory.GetCurrentDirectory();
                if (!strDirectory.EndsWith("\"))
                    strDirectory = strDirectory + "\";
                using (ZipInputStream s = new ZipInputStream(System.IO.File.OpenRead(zipedFile)))
                {
                    s.Password = password;
                    ZipEntry theEntry;
                    while ((theEntry = s.GetNextEntry()) != null)
                    {
                        string directoryName = "";
                        string pathToZip = "";
                        pathToZip = theEntry.Name;
                        if (pathToZip != "")
                            directoryName = Path.GetDirectoryName(pathToZip) + "\";
                        string fileName = Path.GetFileName(pathToZip);
                        Directory.CreateDirectory(strDirectory + directoryName);
                        if (fileName != "")
                        {
                            if ((System.IO.File.Exists(strDirectory + directoryName + fileName) && overWrite) || (!System.IO.File.Exists(strDirectory + directoryName + fileName)))
                            {
                                using (FileStream streamWriter = System.IO.File.Create(strDirectory + directoryName + fileName))
    
                                {
                                    int size = 2048;
                                    byte[] data = new byte[2048];
                                    while (true)
                                    {
                                        size = s.Read(data, 0, data.Length);
                                        if (size > 0)
                                            streamWriter.Write(data, 0, size);
                                        else
                                            break;
                                    }
                                    streamWriter.Close();
                                }
                            }
                        }
                    }
                    s.Close();
                }
            }
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  • 原文地址:https://www.cnblogs.com/datacool/p/datacool_2017_mysql.html
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