用postGIS向postgresql插入空间数据

    首先新建项目后引用Npgsql，定义连接参数

 

  

   
   string
    strConn 
   =
    
   @"
   SERVER=127.0.0.1;DATABASE=template_postgis;USERID=postgres;PASSWORD=111
   "
   ;

   private
    
   void
    btnConnectPostsql_Click(
   object
    sender, EventArgs e)
{
 
   string
    sql 
   =
    
   "
   INSERT INTO table_name (the_geom) VALUES (ST_GeomFromText('MULTILINESTRING((1 1,2 3,3 4,3 2),(3 2,3 1))',-1));
   "
   ;
 ExecuteScalar(sql)
 }


   public
    
   object
    ExecuteScalar( 
   string
    sql)
{
 IDbConnection dbcon;
 dbcon 
   =
    
   new
    NpgsqlConnection (strConn);
 
   using
    (dbcon)
 {
 dbcon.Open();
 IDbCommand dbcmd 
   =
    dbcon.CreateCommand();
 dbcmd.CommandText 
   =
    sql;
 
   object
    ob 
   =
    dbcmd.ExecuteScalar();
 dbcon.Close();
 
   return
    ob;
 }
 }