【WCF--初入江湖】13 实战

13 实战

在线升级

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;
using System.ServiceModel;
using System.IO;
using System.Reflection;
namespace load
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }

        //进入
        private void button1_Click(object sender, EventArgs e)
        {
            //下载客户端程序
            NetTcpBinding bind = new NetTcpBinding();
            bind.MaxReceivedMessageSize = 9999999;
            bind.ReaderQuotas.MaxArrayLength = 99999999;
            bind.ReaderQuotas.MaxStringContentLength = 99999999;

            EndpointAddress address = new EndpointAddress("net.tcp://localhost:5400/sell");
            ChannelFactory<Contracts.ISellOpration> factory = new ChannelFactory<Contracts.ISellOpration>(bind, address);
            byte[] bt = factory.CreateChannel().download();

            //把bt转成dll文件
            FileStream stream = new FileStream(Application.StartupPath + "/winClient.dll", FileMode.Create);
            stream.Write(bt, 0, bt.Length);
            stream.Close();
            factory.Close();

            //启动客户端程序(dll)
            Assembly ass = Assembly.LoadFile(Application.StartupPath + "/winClient.dll");
            Type tp = ass.GetType("winClient.frmMain");
            Form frm = (Form)Activator.CreateInstance(tp);
            frm.Show();
        }
    }
}

ISellOpration.cs

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.ServiceModel;
namespace Contracts
{
    
    [ServiceContract]
    public interface ISellOpration
    {
        //商品进货
        [OperationContract]
        int addstockBill(Bill bill);

        //商品销售
        [OperationContract]
        int addSellBill(Bill bill);

        //下载新版本的客户应用程序
        [OperationContract]
        byte[] download();
    }
}

ServiceOpration.cs

    public class ServiceOpration:Contracts.ISellOpration
    {
..............
        
                //下载客户端
        public byte[] download()
        {
            FileStream stream = new FileStream(Application.StartupPath+"/winClient.dll", FileMode.Open, FileAccess.Read);
            byte[] bt = new byte[stream.Length];
            stream.Read(bt, 0, bt.Length);
            stream.Close();
            return bt;
        }    

　　winClient.dll是把WinForm项目的参数类型从“Window应用程序”改成“类库”。

    其中

public partial class frmMain : Form