AppConsole中把当前的App.config连接字符串写入到同解决方案下的Web项目下的webcofig

最新推荐文章于 2022-04-19 20:00:00 发布

liyifei21

最新推荐文章于 2022-04-19 20:00:00 发布

阅读量1.4k

点赞数

CC 4.0 BY-SA版权

本文链接：https://blog.youkuaiyun.com/liyifei21/article/details/21078553

本文提供了一个使用C#读取和修改Web.config文件中连接字符串的示例代码。通过引用System.Configuration和System.Web.Configuration命名空间，展示了如何加载配置文件、获取及更新连接字符串。

首先为了能读写webconfig,需要引用System.Web.Configuration;

当然读取appconfig 需要有System.Configuration;

class Program
    {
        static void Main(string[] args)
        {

            string s=System.Configuration.ConfigurationManager.ConnectionStrings["BMS"].ConnectionString;
            string path = Path.Combine(Directory.GetParent(System.IO.Directory.GetCurrentDirectory()).Parent.Parent.FullName, "MvcApp");
            VirtualDirectoryMapping vdm = new VirtualDirectoryMapping(path, true);
            WebConfigurationFileMap wcfm = new WebConfigurationFileMap();
            wcfm.VirtualDirectories.Add("/", vdm);
            System.Configuration.Configuration config = System.Web.Configuration.WebConfigurationManager.OpenMappedWebConfiguration(wcfm, "/");
            ConnectionStringsSection connSection = (ConnectionStringsSection)config.GetSection("connectionStrings");

            if (connSection.ConnectionStrings["BMS"]== null)
            {
                ConnectionStringSettings c=new ConnectionStringSettings();
                c.Name = "BMS";
                c.ConnectionString = s;
                connSection.ConnectionStrings.Add(c);
                config.Save();
            }
            else
            {
                connSection.ConnectionStrings["BMS"].ConnectionString = s;
                config.Save();
            }
            //AppSettingsSection appSection = (AppSettingsSection)config.GetSection("appSettings");
            //if (appSection.Settings["BMS"] == null)
            //{
            //    appSection.Settings.Add("BMS", s);
            //    config.Save();
            //}
            Console.Write(s);
            Console.ReadKey();
        }
    }