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  • Sql数据库连接配置

    Web config配置连接字符串

    <connectionStrings>

      <add name="DBName" connectionString="data source='服务器名';User ID='用户名';Password='密码' ;Initial Catalog='数据库名'">

    </connectionStrings>
      public static DataSet(string Sql)

        {

          using(SqlConnection conn=new SqlConnection(ConfigurationManager.ConnectionStrings["DBName"].ConnectionString))

            {

              conn.Open();

              using(SqlCommand cmd=conn.CreateCommand())

                {

                  cmd.CommandText=Sql;

                  SqlDataAdapter adapter=new SqlDataAdapter();

                                       adapter.SelectCommand = cmd;

                  DataSet ds=new DataSet();

                  adapter.Fill(ds);

                  return ds;

                }

            }

        }

    直接添加字符串连接

    public static DataSet(string Sql)

        {

          using(SqlConnection conn=new SqlConnection(@"data source="服务器名";User ID="用户名";Password="密码";Initial Catalog="数据库名""))

            {

              conn.Open();

              using(SqlCommand cmd=conn.CreateCommand())

                {

                  cmd.CommandText=Sql;

                  SqlDataAdapter adapter=new SqlDataAdapter();

                                       adapter.SelectCommand = cmd;

                  DataSet ds=new DataSet();

                  adapter.Fill(ds);

                  return ds;

                }

            }

        }

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  • 原文地址:https://www.cnblogs.com/happygx/p/2019720.html
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