文件上传的方法

一。利用webservice上传文件

客户端：
页面：加入一个FileUpload 控件，一个Button(btnUpload)
下面是btnUpload的事件：

protected void btnUpload_Click( object sender, EventArgs e)

{

////获得上传文件的名称

//FileInfo file = new FileInfo(fileUpload.PostedFile.FileName);

//将上传的文件转换为二进制流

byte[] fileContent = fileUpload.FileBytes;

//获得上传文件的名称

string fileName = fileUpload.FileName;

//实例化webservice

AdService.Service adTemp = new AdService.Service();

if (adTemp.UploadFile(fileContent, fileName))　//调用上传方法。

{

Response.Write("OK");

}

else

{

Response.Write("error");

}

新建一个webService 项目，以下是上传方法的代码：

/// <summary>

/// 通过WebService上传文件

/// </summary>

/// <param name="fs">文件二进制流</param>

/// <param name="fileName">文件名</param>

/// <returns></returns>

[WebMethod(Description = " web提供的方法，上传文件到相应的地址 " )]

public bool UploadFile( byte [] fs, string fileName)

{

try

{

///定义并实例化一个内存流，以存放提交上来的字节数组。

System.IO.MemoryStream m = new System.IO.MemoryStream(fs);

//取出存放地址，可以通过数据库里存放，不用定死了。此处只是做DEMO。

string strFile = "E:" + "//" + "Personal files" + "//" + "good things" + "//" +fileName;

///定义实际文件对象，保存上载的文件。

System.IO.FileStream fl = new System.IO.FileStream(strFile, FileMode.OpenorCreate);

///把内内存里的数据写入物理文件

m.Writeto(fl);

m.Close();

fl.Close();

m = null;

fl = null;

return true;

}

catch

{

return false;

}

二。利用控件上传文件

.aspx页面代码

<body>
    <form id="form1" runat="server">
    <div>
        <ASP:FileUpload ID="FileUpload1" runat="server" /><br />
<br />
<ASP:Button ID="Button1" runat="server" OnClick="Button1_Click"
Text="Upload File" /> <br />
<br />
<ASP:RegularExpressionValidator
id="RegularExpressionValidator1" runat="server"
ErrorMessage="Only mp3,m3u or mpeg files are allowed!"

//下面的文件类型帅选代码，可以在aspx.cs页面中写更为妥当
ValidationExpression="^(([a-zA-Z]:)|(//{2}/w+)/$?)(//(/w[/w].*))+(.jpg|.JPG|.mp3|.MP3|.mpeg|.MPEG|.m3u|.M3U)$"
ControlTovalidate="FileUpload1"></ASP:RegularExpressionValidator>
<br />
<ASP:requiredFieldValidator
id="requiredFieldValidator1" runat="server"
ErrorMessage="This is a required field!"
ControlTovalidate="FileUpload1"></ASP:requiredFieldValidator>

</body>
</html>

aspx.cs页面代码

protected void Button1_Click(object sender,EventArgs e)
    {
        if (FileUpload1.HasFile)
        {

            //string clientpath = FileUpload1.PostedFile.FileName.ToString();
            if(FileUpload1.PostedFile.ContentLength!=0)
             {
                try
                {
                    string pathfirst = "C://Uploads//" + FileUpload1.FileName;
                    FileUpload1.SaveAs("C://Uploads//" +
                         FileUpload1.FileName);
                    Label1.Text = "File name: " +
                         FileUpload1.PostedFile.FileName + "<br>" +
                         FileUpload1.PostedFile.ContentLength + " kb<br>" +
                         "Content type: " +
                         FileUpload1.PostedFile.ContentType;
                    string sql = "insert into test(path) values('" + pathfirst + "')";
                    sqlConnection con = new sqlConnection("Data Source=192.168.1.69;Initial Catalog=calendar;Integrated Security=False;user ID=sa;Password=huison");
                    sqlCommand com = new sqlCommand(sql,con);
                    con.open();
                    com.ExecuteNonQuery();
                    con.Close();
                    Label2.Text = FileUpload1.FileName;

                }
                catch (Exception ex)
                {
                    Label1.Text = "ERROR: " + ex.Message.ToString();
                }
            }
            else
            {
                Label1.Text = "This file does not exist.";
            }
        }
        else
        {
            Response.Write("You have not specified a file.");

} }

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