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published in(发表于) 2014/1/23 3:12:50 |
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C#向ACCESS数据库插入图片_[Asp.Net教程]
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C#向ACCESS数据库插入图片_[Asp.Net教程]
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C#向ACCESS数据库插入图片_[Asp.Net教程] <%@ Page language="c#" Debug="true" Codebehind="Image2Access.aspx.cs" AutoEventWireup="false" Inherits="eMeng.Exam.Image2Access" %>
上传文件到 Access 数据库
using System;
using System.Collections;
using System.ComponentModel;
using System.Data;
using System.Data.OleDb;
using System.Drawing;
using System.Web;
using System.IO;
using System.Web.SessionState;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.HtmlControls;
namespace eMeng.Exam
{
///
/// Image2Access 的摘要说明。
///
public class Image2Access : System.Web.UI.Page
{
protected System.Web.UI.HtmlControls.HtmlInputText MyFileName;
protected System.Web.UI.HtmlControls.HtmlInputFile MyFile;
protected System.Web.UI.HtmlControls.HtmlInputButton Submit1;
protected System.Web.UI.WebControls.DataGrid DG_Persons;
private void Page_Load(object sender, System.EventArgs e)
{
// 在此处放置用户代码以初始化页面
BindGrid();
}
private void BindGrid()
{
string strCnn = "Provider=Microsoft.Jet.OLEDB.4.0;Data Source=" +Server.MapPath("Image2Access.mdb");
OleDbConnection myConnection = new OleDbConnection(strCnn);
OleDbCommand myCommand = new OleDbCommand("SELECT * FROM Person", myConnection);
myCommand.CommandType = CommandType.Text;
try
{
myConnection.Open();
DG_Persons.DataSource = myCommand.ExecuteReader(CommandBehavior.CloseConnection);
DG_Persons.DataBind();
}
catch(OleDbException SQLexc)
{
Response.Write("提取数据时出现错误：" + SQLexc.ToString());
}
}
protected string FormatURL(object strArgument)
{
return "ReadImage.aspx?id=" + strArgument.ToString();
}
#region Web 窗体设计器生成的代码 http://sucai.knowsky.com/
override protected void OnInit(EventArgs e)
{
//
// CODEGEN: 该调用是 ASP.NET Web 窗体设计器所必需的。
//
InitializeComponent();
base.OnInit(e);
}
///
/// 设计器支持所需的方法 - 不要使用代码编辑器修改
/// 此方法的内容。
///
private void InitializeComponent()
{
this.Submit1.ServerClick += new System.EventHandler(this.Submit1_ServerClick);
this.Load += new System.EventHandler(this.Page_Load);
}
#endregion
private void Submit1_ServerClick(object sender, System.EventArgs e)
{
//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
string strCnn = "Provider=Microsoft.Jet.OLEDB.4.0;Data Source=" + Server.MapPath("Image2Access.mdb");
OleDbConnection myConnection = new OleDbConnection(strCnn);
OleDbCommand command = new OleDbCommand ("INSERT INTO Person (PersonName,PersonEmail,PersonSex,PersonImageType,PersonImage)" +
"VALUES (@PersonName,@PersonEmail,@PersonSex,@PersonImageType,@PersonImage)", myConnection);
System.Data.OleDb.OleDbParameter paramPersonName = new OleDbParameter("@PersonName", System.Data.OleDb.OleDbType.VarChar,50);
paramPersonName.Value = fileTitle;
command.Parameters.Add(paramPersonName);
System.Data.OleDb.OleDbParameter paramPersonEmail = new OleDbParameter("@PersonEmail", System.Data.OleDb.OleDbType.VarChar,50);
paramPersonEmail.Value = "mengxianhui@dotnet.aspx.cc";
command.Parameters.Add(paramPersonEmail);
System.Data.OleDb.OleDbParameter paramPersonSex = new OleDbParameter("@paramPersonSex", System.Data.OleDb.OleDbType.VarChar,50);
paramPersonSex.Value = "男";
command.Parameters.Add(paramPersonSex);
System.Data.OleDb.OleDbParameter paramPersonImageType = new OleDbParameter("@PersonImageType", System.Data.OleDb.OleDbType.VarChar,50);
paramPersonImageType.Value = fileType;
command.Parameters.Add(paramPersonImageType);
System.Data.OleDb.OleDbParameter paramPersonImage = new OleDbParameter("@PersonImage", System.Data.OleDb.OleDbType.Binary);
paramPersonImage.Value = fileData;
command.Parameters.Add(paramPersonImage);
//打开连接，执行查询
myConnection.Open();
command.ExecuteNonQuery();
myConnection.Close();
}
}
}
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