private static string connString = ConfigurationManager.AppSettings[“StuMisConnctionStr1”].ToString(); 2.0// appconfig: DBHelper protected string constring = ConfigurationManager.ConnectionStrings[“ConnectionString”].ToString(); 6.0 第一种: //providerName = “System.data.SqlClient”表示要连接的数据库...
providerName="System.Data.SqlClient" /> </connectionStrings> 1. 2. 3. 4. 在页面还可以这样引用<%$ ConnectionString:Name%>. 2.<appSettings>的使用 AI检测代码解析 <add key="connectionstringName" value="data source=服务器名或IP;initial catalog=数据库名;persist security info=False;user id=用户...
2 <appSettings> 3 <addkey="sqlconn"value="server=localhost;database=data;uid=sa;pwd=sa"/> 4 </appSettings> 5 <connectionStrings> 6 <addname="DataConnectionString"connectionString="Data Source=localhost;Initial Catalog=Data;User ID=sa;Password=sa"providerName="System.Data.SqlClient"/> 7 </...
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<addname=".MySettings.JFConnectionString"connectionString="Data Source=JIA;Initial Catalog=JF;Persist Security Info=True;User ID=sa;Password=123456" providerName="System.Data.SqlClient"/> </connectionStrings> <startup> <supportedRuntimeversion="v4.0"sku=".NETFramework,Version=v4.5"/> ...
<?xml version="1.0"encoding="utf-8"?><configuration><add name="ConnStr"connectionString="Data Source=.;Initial Catalog=手机号归属地;User ID=sa;Password=123456"/></configuration> 可是却出现了在运行中弹出这样的错误提示: 很是郁闷,查了很多资料,反复看自己写的代码,可就是不知道到底错哪儿了,于是...
protectedstring conString = ConfigurationManager.ConnectionStrings["ConnectionString"].ToString(); 6.0 <connectionstrings> 第一种: <add name="sql" connectionstring="server=Ip\服务器\.;database=数据库名;uid=用户名;pwd=密码;" providername="System.Data.SqlClient"> ...
// 假设你有一个数据库连接字符串 var connectionString = configuration.GetConnectionString("DefaultConnection"); // 使用连接字符串连接到数据库 using (var connection = new SqlConnection(connectionString)) { // 执行数据库操作 } 综上所述,通过以上步骤,你可以在C#中方便地读取和使用appsettings.json文件...
2. string connectionString = ConfigurationManager.ConnectionStrings["AspNetStudyConnectionString1"].ConnectionString; 3. //实例化SqlConnection对象 4. SqlConnection connection = new SqlConnection(connectionString); 这样做的好处是一旦开发时所用的数据库和部署时的数据库不一致,仅仅需要用记事本之类的文本编辑工...
providerName="System.Data.SqlClient" /> </connectionStrings> 在<connectionStrings>里,在页面还可以这样引用<%$ ConnectionString:Name%>. 2.<appSettings> <add key="connectionstringName" value="data source=服务器名或IP;initial catalog=数据库名;persist security info=False;user id=用户;password=密码;pa...