Question

如何读取其他应用程序以获取connectionString .. 我有web.config文件的路径但是它中有多个连接字符串，我想获得唯一的非注释连接字符串。

<connectionStrings>
  <add name="DbConString" connectionString="Provider=Microsoft.ACE.OLEDB.12.0;Data Source=D:\abcd\Data\abcd.accdb;" providerName="System.Data.OleDb"/>
  <!--<add name="DbConString" connectionString="Persist Security Info=False;User ID=sa;Password=123;Initial Catalog=abc;Data Source=afrt-WIN7JPN-80\SQLEXPRESS" providerName="System.Data.SqlClient"/>-->
</connectionStrings>

如何获取未评论的DbConString

Answer 1

只需使用XmlDocument

阅读Web.Config即可完成

 string connStr = "";
 XmlDocument xdoc = new XmlDocument();
 xdoc.Load(WebConfigPath);
 XmlNode xnodes = xdoc.SelectSingleNode("/configuration/connectionStrings");

  foreach (XmlNode xnn in xnodes.ChildNodes)
  {
     if (xnn.NodeType == XmlNodeType.Comment)
     { 
     }
     else
     {
       connStr = xnn.Attributes["connectionString"].Value.ToString();
     }
  }

Answer 2

你可以试试这个

var filePath = @"D:\PathToConfig\Web.config";
var map = new ExeConfigurationFileMap { ExeConfigFilename = filePath };
var configFile = ConfigurationManager.OpenMappedExeConfiguration(map, ConfigurationUserLevel.None);

如图所示 here!

阅读另一个应用程序的Web.Config以获取ConnectionString

2 个答案: