SGGL_HBAZ/SGGL/WebAPI/Controllers/DatabaseHelper.cs

using System;
using System.Data.SqlClient;

namespace WebAPI.Helpers
{
    public class DatabaseHelper : IDisposable
    {
        private SqlConnection _sqlConnection;
        private bool _disposed = false;

        public DatabaseHelper(string connectionString)
        {
            _sqlConnection = new SqlConnection(connectionString);
            _sqlConnection.Open();
        }

        public SqlConnection GetConnection()
        {
            return _sqlConnection;
        }

        public void Dispose()
        {
            Dispose(true);
            GC.SuppressFinalize(this);
        }

        protected virtual void Dispose(bool disposing)
        {
            if (!_disposed)
            {
                if (disposing)
                {
                    // 释放托管资源
                    if (_sqlConnection != null)
                    {
                        _sqlConnection.Close();
                        _sqlConnection.Dispose();
                        _sqlConnection = null;
                    }
                }
                // 释放非托管资源
                _disposed = true;
            }
        }
    }
}