使用流上传WORD和下载WORD（oracle）

1private void Button1_Click(object sender, System.EventArgs e)//上传

2

20 private void Button2_Click(object sender, System.EventArgs e)//下载

21

48

这个很简单啊,数据库字段设为image.在可户端上传的时候用流的方式读取,其他的操作跟别的类型的没多少区别.以下有一个例子:

public void UpPic()

{

HttpPostedFile upFile = File1.PostedFile;//HttpPostedFile对象,用来读取上传文档的属性

int fileLength = upFile.ContentLength;//记录文件的长度

byte[] fileByte = new byte[fileLength];//用file的长度来初始化一个字节数组存储临时的文件

FileStream fs = new System.IO.FileStream(upFile.FileName, FileMode.Open, FileAccess.Read);

BinaryReader br = new BinaryReader(fs);

byte[] wordfile= br.ReadBytes((int)fs.Length); //然后把wordfile当作普通的参数传过去就可以了，应该会吧!

}

怎样把word文件上传到sql server数据库中，并且能够下载,数据的字段设为Image类型,然后保存图片的方法,保存Word.

回复人： zhf2002(歼10A) ( ) 信誉：92

public void ImageStored(Object sender,EventArgs e)

{

Stream imgdatastream = File1.PostedFile.InputStream;

int imgdatalen = File1.PostedFile.ContentLength;

string imgtype = File1.PostedFile.ContentType;

string imgtitle = TextBox1.Text;

byte[] imgdata = new byte[imgdatalen];

int n = imgdatastream.Read(imgdata,0,imgdatalen);

//string connstr="server=(local);database=ImageStore;Trusted_Connection=yes";

SqlConnection connection = new SqlConnection(CWMis.FinanceApp.Base.strConnection);

//SqlConnection connection = new SqlConnection(connstr);

SqlCommand command = new SqlCommand("INSERT INTO ImgStore(imgtitle,imgtype,imgdata)VALUES ( @imgtitle, @imgtype,@imgdata )", connection );

SqlParameter paramTitle = new SqlParameter("@imgtitle", SqlDbType.VarChar,50 );

paramTitle.Value = imgtitle;

command.Parameters.Add( paramTitle);

SqlParameter paramData = new SqlParameter( "@imgdata", SqlDbType.Image );

paramData.Value = imgdata;

command.Parameters.Add( paramData );

SqlParameter paramType = new SqlParameter( "@imgtype", SqlDbType.VarChar,50 );

paramType.Value = imgtype;

command.Parameters.Add( paramType );

connection.Open();

int numRowsAffected = command.ExecuteNonQuery();

connection.Close();

}

回复人： stoway(X.G.Z) ( ) 信誉：100

<!--
* * * * * * * * * * * * * * * * * * * * * * * *			        天天向上	 	    * * * * * * * * * * * * * * * * * * * * * * * * * * *
*	if exists (select * from dbo.sysobjects where id = object_id(N'[dbo].[File]') and OBJECTPROPERTY(id, N'IsUserTable') = 1)			*
*	drop table [dbo].[File]
*	GO																																	*
*
*	CREATE TABLE [dbo].[File] (																											*
*		[ID] [int] IDENTITY (1, 1) NOT NULL ,
*		[fileName] [varchar] (50) COLLATE Chinese_PRC_CI_AS NULL 4	?															*
*		[fileType] [varchar] (50) COLLATE Chinese_PRC_CI_AS NULL ,
*		[fileSize] [float] NULL 4	?																							*
*		[fileContext] [image] NULL
*	) ON [PRIMARY] TEXTIMAGE_ON [PRIMARY]																								*
*	GO
* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
-->
<%@ Page language="c#"%>
<%@ Import Namespace="System.Data.SqlClient" %>
<%@ Import Namespace="System.Web" %>
<%@ Import Namespace="System.Web.UI" %>
<%@ Import Namespace="System.Web.UI.WebControls" %>
<%@ Import Namespace="System.Data" %>
<script runat="server">
override protected void OnInit(EventArgs e)
{
this.btUp.Click += new System.EventHandler(this.btUp_Click);
this.DataGrid1.DeleteCommand += new System.Web.UI.WebControls.DataGridCommandEventHandler(this.DataGrid1_DeleteCommand);
this.Load += new System.EventHandler(this.Page_Load);
base.OnInit(e);
}
void Page_Load(object sender, System.EventArgs e)
{
this.btUp.Attributes.Add("onclick","loading.style.display='';document.body.enabled=true");
if(Request["downFile"]!=null)//下载文件
{
string strFileID = Request["downFile"];
SqlConnection conn = new SqlConnection("Data Source=localhost;database=test;user id=sa;password=");
SqlDataAdapter adapt = new SqlDataAdapter("select * from [file] where id="+strFileID,conn);
DataSet ds = new DataSet();
adapt.Fill(ds);
if(ds.Tables.Count!=0 && ds.Tables[0].Rows.Count!=0)
{
Response.ClearHeaders();
Response.ClearContent();
Response.AddHeader("Content-Disposition", "attachment; filename="+ds.Tables[0].Rows[0]["fileName"].ToString());
byte[] context = (Byte[])ds.Tables[0].Rows[0]["fileContext"];
Response.OutputStream.Write(context,0,context.Length);
Response.End();
}
else
{
Response.Write("<font color=red>没有找到要下载的文件</font>");
}
}
else	//显示文件列表
{
ListFile();
}
}
void ListFile()
{
SqlConnection conn = new SqlConnection("Data Source=localhost;database=test;user id=sa;password=");
SqlDataAdapter adapt = new SqlDataAdapter("select * from [file]",conn);
DataSet ds = new DataSet();
adapt.Fill(ds);
this.DataGrid1.DataSource = ds;
this.DataGrid1.DataBind();
}
void btUp_Click(object sender, System.EventArgs e)
{
if(File.PostedFile!=null && File.PostedFile.ContentLength!=0)
{
int size = File.PostedFile.ContentLength;
SqlConnection conn = new SqlConnection("Data Source=localhost;database=test;user id=sa;password=");
SqlCommand cmd = new SqlCommand("insert into [file] (fileName,fileType,fileSize,fileContext) values(@fileName,@fileType,@fileSize,@fileContext)",conn);
//文件名
SqlParameter param = new SqlParameter("@fileName",SqlDbType.VarChar,50);
param.Value = File.PostedFile.FileName.Substring(File.PostedFile.FileName.LastIndexOf("\\")+1);
cmd.Parameters.Add(param);
//文件类型
param = new SqlParameter("@fileType",SqlDbType.VarChar,50);
param.Value = File.PostedFile.ContentType;
cmd.Parameters.Add(param);
//文件大小
param = new SqlParameter("@fileSize",SqlDbType.Float,8);
param.Value = size;
cmd.Parameters.Add(param);
//文件内容
byte[] context = new Byte[size];
param = new SqlParameter("@fileContext",SqlDbType.Image);
File.PostedFile.InputStream.Read(context,0,size);
param.Value = context;
cmd.Parameters.Add(param);
conn.Open();
cmd.ExecuteNonQuery();
conn.Close();
ListFile();
}
else
{
Response.Write("<font color=red>上传文件为空</font>");
}
}
void DataGrid1_DeleteCommand(object source, System.Web.UI.WebControls.DataGridCommandEventArgs e)
{
SqlConnection conn = new SqlConnection("Data Source=localhost;database=test;user id=sa;password=");
SqlCommand cmd = new SqlCommand("delete [file] where id = @id",conn);
SqlParameter param = new SqlParameter("@id",SqlDbType.Int);
param.Value = e.Item.Cells[0].Text;
cmd.Parameters.Add(param);
conn.Open();
cmd.ExecuteNonQuery();
conn.Close();
ListFile();
}
</script>
<HTML>
<HEAD>
<title>通用上传下载--支持所有格式文件</title>
</HEAD>
<body>
<form id="WebForm5" method="post" runat="server" enctype="multipart/form-data">
<input id="File" type="file" runat="server">
<asp:button id="btUp" runat="server" Text="上  传"></asp:button><asp:datagrid id="DataGrid1" runat="server" AutoGenerateColumns="False">
<HeaderStyle BackColor="#669966"></HeaderStyle>
<Columns>
<asp:BoundColumn DataField="ID" HeaderText="ID">
<HeaderStyle HorizontalAlign="Center"></HeaderStyle>
</asp:BoundColumn>
<asp:BoundColumn DataField="fileName" HeaderText="文件名">
<HeaderStyle HorizontalAlign="Center"></HeaderStyle>
</asp:BoundColumn>
<asp:BoundColumn DataField="fileType" HeaderText="文件类型">
<HeaderStyle HorizontalAlign="Center"></HeaderStyle>
</asp:BoundColumn>
<asp:BoundColumn DataField="fileSize" HeaderText="文件大小">
<HeaderStyle HorizontalAlign="Center"></HeaderStyle>
</asp:BoundColumn>
<asp:TemplateColumn>
<ItemTemplate>
<asp:HyperLink Text="下载" NavigateUrl='<%# String.Format("{0}?downFile={1}",Request.CurrentExecutionFilePath,DataBinder.Eval(Container.DataItem,"ID"))%>' Runat="server">
</asp:HyperLink>
</ItemTemplate>
</asp:TemplateColumn>
<asp:ButtonColumn Text="删除" CommandName="Delete"></asp:ButtonColumn>
</Columns>
</asp:datagrid></form>
<div id="loading" style="display:none;border-left:1px solid #EEEEEE;border-top:1px solid #EEEEEE;border-right:1px solid #666666;border-bottom:1px solid #666666;background-color:#DDDDDD;width:300px;heigth:200px;text-align:center">
正在进行操作，请稍候……
</div>
</body>
</HTML>
回复人： littlehb(闭关ing...) ( ) 信誉：100

[code]上传：
//得到提交的文件
Stream fileDataStream = MyFile.PostedFile.InputStream;
//得到文件大小
int fileLength = MyFile.PostedFile.ContentLength;
//创建数组
byte[] fileData = new byte[fileLength];
//把文件流填充到数组
fileDataStream.Read(fileData,0,fileLength);
//得到文件名字
string fileTitle = MyFileName.Value;
//得到文件类型
string fileType = MyFile.PostedFile.ContentType;
//构建数据库连接，SQL语句，创建参数
SqlConnection connection = new SqlConnection("Server=.;uid=sa;pwd=mdcija;Database=TestUploadFile");
SqlCommand command = new SqlCommand ("INSERT INTO TestFiles (MyFileName,MyFile,FileType)" +
"VALUES (@MyFileName,@MyFile,@FileType)", connection);
SqlParameter paramTitle = new SqlParameter ("@MyFileName", SqlDbType.VarChar,35);
paramTitle.Value = fileTitle;
command.Parameters.Add(paramTitle);
SqlParameter paramData = new SqlParameter ("@MyFile", SqlDbType.Image);
paramData.Value = fileData;
command.Parameters.Add(paramData);
SqlParameter paramType = new SqlParameter ("@FileType", SqlDbType.VarChar,25);
paramType.Value = fileType;
command.Parameters.Add(paramType);
//打开连接，执行查询
connection.Open();
command.ExecuteNonQuery();
connection.Close();
Message.Text="你的文件已经成功上载";
MyFileName.Value = "";
下载：
string sql="SELECT * FROM TestFiles WHERE ID = '" + Request.QueryString["ID"] + "'";
SqlConnection connection = new SqlConnection("Server=.;uid=sa;pwd=mdcija;Database=TestUploadFile");
SqlCommand command = new SqlCommand(sql, connection);
connection.Open();
SqlDataReader dr = command.ExecuteReader();
if(dr.Read())
{
Response.Clear();
Response.AddHeader("Content-Type",dr["FileType"].ToString());
Response.BinaryWrite((byte[])dr["MyFile"]);
}
dr.Close();
connection.Close();

if exists (select * from dbo.sysobjects where id = object_id(N'[dbo].[TestFiles]')
and OBJECTPROPERTY(id, N'IsUserTable') = 1)
drop table [dbo].[TestFiles]
GO
CREATE TABLE [dbo].[TestFiles] (
[id] [int] IDENTITY (1, 1) NOT NULL ,
[MyFileName] [varchar] (50) COLLATE Chinese_PRC_CI_AS NOT NULL ,
[FileType] [varchar] (50) COLLATE Chinese_PRC_CI_AS NOT NULL ,
[MyFile] [image] NOT NULL
) ON [PRIMARY] TEXTIMAGE_ON [PRIMARY]
GO
this is create table code!

[/code]