运行环境
- 操作系统:
Ubuntu 22.04.3 LTS (Jammy)
- 开发工具:
Visual Studio 2022 (17.8.0)
- 运行时版本:
.NET Runtime 8.0
- 依赖库:
unixodbc
、mdbtools
、odbc-mdbtools
依赖库安装
apt-get update
sudo apt-get install unixodbc mdbtools odbc-mdbtools
依赖库版本信息
-
apt list --installed | grep odbc
libodbc1/jammy,now 2.3.9-5 amd64 [installed,automatic]
libodbc2/jammy,now 2.3.9-5 amd64 [installed,automatic]
libodbccr2/jammy,now 2.3.9-5 amd64 [installed,automatic]
libodbcinst2/jammy,now 2.3.9-5 amd64 [installed,automatic]
odbc-mdbtools/jammy,now 1.0.0+dfsg-1 amd64 [installed]
odbcinst1debian2/jammy,now 2.3.9-5 amd64 [installed,automatic]
odbcinst/jammy,now 2.3.9-5 amd64 [installed,automatic]
unixodbc-common/jammy,now 2.3.9-5 all [installed,automatic]
unixodbc/jammy,now 2.3.9-5 amd64 [installed] -
apt list --installed | grep mdb
liblmdb0/jammy,now 0.9.24-1build2 amd64 [installed,automatic]
libmdb3/jammy,now 1.0.0+dfsg-1 amd64 [installed,automatic]
libmdbsql3/jammy,now 1.0.0+dfsg-1 amd64 [installed,automatic]
mdbtools/jammy,now 1.0.0+dfsg-1 amd64 [installed]
odbc-mdbtools/jammy,now 1.0.0+dfsg-1 amd64 [installed]
Linux平台
下的 ODBC
配置
-
/etc/odbc.ini
[access_db] # 随意命名,会在项目代码里用到它
Description=Microsoft Access Database
Driver=MDBW
ServerName = localhost
Database=/root/Database1.mdb # 按你的实际路径改写,要有读写权限 -
/etc/odbcinst.ini
[MDBW] # 随意,在odbc.ini文件用到它
Description=MDBTools Driver Wide # 随意
Driver=/usr/lib/x86_64-linux-gnu/odbc/libmdbodbcW.so # 按你的实际路径改写
Setup=/usr/lib/x86_64-linux-gnu/odbc/libmdbodbcW.so # 按你的实际路径改写
FileUsage=1
UsageCount=1
[MDBTools]
Description=MDBTools Driver # 随意
Driver=/usr/lib/x86_64-linux-gnu/odbc/libmdbodbc.so # 按你的实际路径改写
Setup=/usr/lib/x86_64-linux-gnu/odbc/libmdbodbc.so # 按你的实际路径改写
FileUsage=1
UsageCount=1
[ODBC]
Trace=1
TraceFile=/tmp/mdb.log # 有写入权限的文件路径
Demo 项目代码
输出:
UserName: Allen
UserName: Joy
编译和发布
在 OdbcForLinuxTestApp
目录下,执行命令:
dotnet publish -c Release -f net8.0 -r win-x64 -o ./publish/win-x64 # 如果只考虑 Linux平台,该命令可忽略
dotnet publish -c Release -f net8.0 -r linux-x64 -o ./publish/linux-x64
运行 OdbcForLinuxTestApp
注意:
Database1.mdb
数据库文件需要提前放到正确的路径,以odbc.ini文件
的Database
配置项为准。
cd ./publish/linux-x64
chmod +x OdbcForLinuxTestApp # 授予可执行权限
./OdbcForLinuxTestApp
BASH 复制 全屏
-
Program.cs
using System.Data; using System.Data.Common; using System.Data.Odbc; using System.Data.OleDb; namespace OdbcForLinuxTestApp; internal sealed class Program { static async Task Main(string[] args) { string connectionStrings; if (OperatingSystem.IsWindows()) { string mdbFile = Path.Combine(AppContext.BaseDirectory, "Database1.mdb"); connectionStrings = $"Provider=Microsoft.ACE.OLEDB.12.0;Data Source={mdbFile}"; } else { //root/Database1.mdb connectionStrings = "DSN=access_db;"; } await using (DbConnection conn = GetDbConnection(connectionStrings)) { await conn.OpenAsync(); DbCommand cmd = conn.CreateCommand(); cmd.CommandType = CommandType.Text; cmd.CommandText = "select [ID],[UserName] from Users"; DbDataReader reader = await cmd.ExecuteReaderAsync(); while (await reader.ReadAsync()) { //The MDBTools does not support the use of column names string userName = reader.GetString(1); Console.WriteLine("UserName: " + userName); } } } private static string DbProviderName => OperatingSystem.IsWindows() ? "System.Data.OleDb" : "System.Data.Odbc"; private static DbConnection GetDbConnection(string connectionStrings) { RegisterOdbcOrOleDbFactory(); DbProviderFactory dbFactory = DbProviderFactories.GetFactory(DbProviderName); DbConnection? conn = dbFactory.CreateConnection(); if (conn == null) { return OperatingSystem.IsWindows() ? new OleDbConnection(connectionStrings) : new OdbcConnection(connectionStrings); } conn.ConnectionString = connectionStrings; return conn; } private static int _isRegisteredDbFactory; private static void RegisterOdbcOrOleDbFactory() { if (Interlocked.CompareExchange(ref _isRegisteredDbFactory, 1, 0) == 0) { string dbProviderName = DbProviderName; IEnumerable<string> providerInvariantNames = DbProviderFactories.GetProviderInvariantNames(); string? invariantName = providerInvariantNames.FirstOrDefault(x => x.Equals(dbProviderName, StringComparison.InvariantCultureIgnoreCase)); if (string.IsNullOrWhiteSpace(invariantName)) { DbProviderFactories.RegisterFactory(dbProviderName, OdbcFactory.Instance); } } } }
编译和发布 Demo 项目代码
准备工作
-
创建
OdbcForLinuxTestApp
目录 -
将上述两个代码文件放入
OdbcForLinuxTestApp
目录 -
安装
.NET SDK 8.0.100