C# 通过WebService方式上传文件到服务器的虚拟机下详尽方法

2021-08-25 14:28:20

应用场景：要将本地的文件上传到服务器的虚拟机上

网络环境：公司局域网（如下图中第二种）

开发环境：VS2010

服务器环境：WinServer2008 虚拟机环境：WinServer2008

我的程序结构目录

AppSrvice 是服务文件将来发布了以后要放到服务器上， WindowFormsAppp 是Winform程序

C# 通过WebService方式上传文件到服务器的虚拟机下详尽方法

第一步：创建一个新的： Windows窗体应用程序

关键代码如下：

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;
using System.Security.Cryptography;
using System.IO;

namespace WindowsFormsApplication1
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }

        private void button1_Click(object sender, EventArgs e)
        {
            //localhost.WebService1 client = new localhost.WebService1();
            ServiceReference1.WebService1SoapClient client = new ServiceReference1.WebService1SoapClient();
            //上传服务器后的文件名  一般不修改文件名称
            int start = textBox1.Text.LastIndexOf("\\");
            int length = textBox1.Text.Length;
            string serverfile = textBox1.Text.Substring(start + 1, length - textBox1.Text.LastIndexOf("."))
                    + DateTime.Now.ToString("-yyyy-mm-dd-hh-mm-ss")
                    + textBox1.Text.Substring(textBox1.Text.LastIndexOf("."), textBox1.Text.Length - textBox1.Text.LastIndexOf("."));

            client.CreateFile(serverfile);
            //要上传文件的路径
            string sourceFile = textBox1.Text ;
            string md5 = GetMD5(sourceFile);

            FileStream fs = new FileStream(sourceFile, FileMode.Open, FileAccess.Read, FileShare.ReadWrite);
            int size = (int)fs.Length;
            int bufferSize = 1024 * 512;
            int count = (int)Math.Ceiling((double)size / (double)bufferSize);
            for (int i = 0; i < count; i++)
            {
                int readSize = bufferSize;
                if (i == count - 1)
                    readSize = size - bufferSize * i;
                byte[] buffer = new byte[readSize];
                fs.Read(buffer, 0, readSize);
                client.Append(serverfile, buffer);
            }

            bool isVerify = client.Verify(serverfile, md5);
            if (isVerify)
                MessageBox.Show("上传成功");
            else
                MessageBox.Show("上传失败");

        }

        private string GetMD5(string fileName)
        {
            FileStream fs = new FileStream(fileName, FileMode.Open, FileAccess.ReadWrite, FileShare.ReadWrite);
            MD5CryptoServiceProvider p = new MD5CryptoServiceProvider();
            byte[] md5buffer = p.ComputeHash(fs);
            fs.Close();
            string md5Str = "";
            List<string> strList = new List<string>();
            for (int i = 0; i < md5buffer.Length; i++)
            {
                md5Str += md5buffer[i].ToString("x2");
            }
            return md5Str;
        }

        private void button2_Click(object sender, EventArgs e)
        {
            OpenFileDialog openDialog = new OpenFileDialog();
            openDialog.Filter = "视频文件(*.avi,*.wmv,*.mp4)|*.avi;*.wmv;*.mp4";
            if (openDialog.ShowDialog() == DialogResult.OK)
            {
                textBox1.Text = openDialog.FileName;
            }
        }


    }
}

第二步：创建WebService

关键代码如下：

using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.Services;
using System.IO;
using System.Security.Cryptography;
namespace StateGrid95598
{
    /// <summary>
    /// WebService1 的摘要说明
    /// </summary>
    [WebService(Namespace = "http://tempuri.org/")]
    [WebServiceBinding(ConformsTo = WsiProfiles.BasicProfile1_1)]
    [System.ComponentModel.ToolboxItem(false)]
    // 若要允许使用 ASP.NET AJAX 从脚本中调用此 Web 服务，请取消注释以下行。 
    // [System.Web.Script.Services.ScriptService]
    public class WebService1 : System.Web.Services.WebService
    {

        [WebMethod]
        public string HelloWorld()
        {
            return "Hello World";
        }

        [WebMethod]
        public bool CreateFile(string fileName)
        {
            bool isCreate = true;
            try
            {
                //首先设置上传服务器文件的路径  然后发布web服务 发布的时候要自己建一个自己知道的文件夹 "C:\NMGIS_Video\" "C:\NMGIS_Video\"                fileName = Path.Combine(Server.MapPath("") + @"\Video\" + Path.GetFileName(fileName));
                FileStream fs = new FileStream(fileName, FileMode.Create, FileAccess.ReadWrite, FileShare.ReadWrite);
                fs.Close();
            }
            catch
            {
                isCreate = false;
            }
            return isCreate;
        }
        [WebMethod]
        public bool Append(string fileName, byte[] buffer)
        {
            bool isAppend = true;
            try
            {
                //fileName = Path.Combine(@"C:\NMGIS_Video\" + Path.GetFileName(fileName));
                fileName = Path.Combine(Server.MapPath("") + @"\Video\" + Path.GetFileName(fileName));
                FileStream fs = new FileStream(fileName, FileMode.Open, FileAccess.ReadWrite, FileShare.ReadWrite);
                fs.Seek(0, SeekOrigin.End);
                fs.Write(buffer, 0, buffer.Length);
                fs.Close();
            }
            catch
            {
                isAppend = false;
            }
            return isAppend;
        }
        [WebMethod]
        public bool Verify(string fileName, string md5)
        {
            bool isVerify = true;
            try
            {

                fileName = Path.Combine(Server.MapPath("") + @"\Video\" + Path.GetFileName(fileName));
                FileStream fs = new FileStream(fileName, FileMode.Open, FileAccess.ReadWrite, FileShare.ReadWrite);
                MD5CryptoServiceProvider p = new MD5CryptoServiceProvider();
                byte[] md5buffer = p.ComputeHash(fs);
                fs.Close();
                string md5Str = "";
                List<string> strList = new List<string>();
                for (int i = 0; i < md5buffer.Length; i++)
                {
                    md5Str += md5buffer[i].ToString("x2");
                }
                if (md5 != md5Str)
                    isVerify = false;
            }
            catch
            {
                isVerify = false;
            }
            return isVerify;
        }
    }
}