知识大全图片上传代码示例

Posted 2022-07-17 文件

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using System;using System IO;using System Collections;using System ComponentModel;using System Data;using System Drawing;using System Drawing Imaging;using System Web;using System Web SessionState;using System Web UI;using System Web UI WebControls;using System Web UI HtmlControls;using System Data SqlClient;using KunslyNetDll Common;using HunMSM include;namespace HunMSM photo /**//// <summary> /// 图片上传 /// </summary> public partial class _upphoto : System Web UI Page public string sPath = ; public string extension; public string path; public string fileName; public string smobile; protected void Page_Load(object sender System EventArgs e) // 在此处放置用户代码以初始化页面 AddControl(); if (Session[ UserMobile ] == null) Response Write( <script language=javascript>alert( 请先登录才允许上传图片 );history back( )</script> ); else smobile = Session[ UserMobile ] ToString() Trim(); if(!this IsPostBack) DropDownPhotoType(); DropDownPhotoColl(); void AddControl()#region void AddControl() /**//// <summary> /// 添加控件 /// </summary> private void AddControl() Control ctrl; sPath = KunslyWebPage GetRelativeRootPath(this); //头 ctrl = LoadControl(sPath + CtrlHead ascx ); HolderHead Controls Add(ctrl); //左边框 ctrl = LoadControl(sPath + CtrlLeft ascx ); HolderLeft Controls Add(ctrl); //底部 ctrl = LoadControl(sPath + CtrlBottom ascx ); HolderBottom Controls Add(ctrl); #endregion Web 窗体设计器生成的代码#region Web 窗体设计器生成的代码 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); /**//// <summary> /// 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 /// </summary> private void InitializeComponent() #endregion protected void Button _Click(object sender System EventArgs e) int ncount = GetRecordCount(); if (ncount == ) KunslyWebPage ShowMessage(this 请先创建相册才允许上传图片 ); return; // Response Write( <script language=javascript>alert( 请先创建相册才允许上传图片 );history back( )</script> ); //else // if(UploadFile PostedFile FileName Trim() == ) //Response Write( <script language=javascript>alert( 老大没文件怎么传啊 );history back( )</script> ); KunslyWebPage ShowMessage(this 请选择文件 ); return; // else // if (txtMessage Text Trim() == ) KunslyWebPage ShowMessage(this 请输入简介 ); return; //Response Write( <script language=javascript>alert( 老大请输入简介 );history back( )</script> ); extension = Path GetExtension(UploadFile PostedFile FileName) ToUpper(); if (extension != JPG && extension != GIF ) KunslyWebPage ShowMessage(this 非法文件不允许上传只允许上传 jpg或 gif文件 ); return; //Response Write( <script language=javascript>alert( 非法文件不允许上传 );history back( )</script> ); if (UploadFile PostedFile ContentLength >= ) //大于 M不允许上传 KunslyWebPage ShowMessage(this 文件过大不能上传单个文件最大不超过 M ); return; fileName = DateTime Now ToString( yyyyMMddhhmmss ); path = Server MapPath( ) + /upfile/ + fileName + extension; updata(); void updata()#region void updata() void updata() //这个过程可以更新的数据库把图片地址插入到数据库 UploadFile PostedFile SaveAs(path); int width height newwidth= newheight; System Drawing Image image ; image = System Drawing Image FromFile(path); width=image Width; height=image Height; newheight=height*newwidth/width; Bitmap bm = new Bitmap(image newwidth newheight); bm Save(Server MapPath( ) + /upfile/ + fileName + _s + extension ImageFormat Jpeg); image = System Drawing Image FromFile(path); LblShowPhoto Text = 照片已经成功上传文件名为 + fileName + extension + 占用空间 ; LblShowPhoto Text += UploadFile PostedFile ContentLength/ + k ; string strtxtMessage = txtMessage Text; strtxtMessage = strtxtMessage Replace( ＇ ); strtxtMessage = strtxtMessage Replace( ＂ ); strtxtMessage = strtxtMessage Replace( <br> ); string strSql = insert into photourl ; strSql += (PhotoUrl PhotoUrl_s PhotoWidth PhotoHeight PhotoSize Puttime PhotoIntro ; strSql += PhotoColl Mobile PhotoColl ) ; strSql += values ; strSql += ( +fileName+extension+ +fileName + _s + extension+ +image Width+ +image Height; strSql += +UploadFile PostedFile ContentLength+ getdate() +strtxtMessage; strSql += +DdlPhotoType SelectedValue ToString() Trim()+ +smobile+ ; strSql += DdlPhotoColl SelectedValue ToString() Trim()+ ) ; SqlConnection dbConn = DbConnection GetSqlConn(); SqlCommand dbCmd = new SqlCommand(strSql dbConn); dbCmd ExecuteNonQuery(); dbCmd Dispose(); dbConn Close(); image Dispose(); bm Dispose(); #endregion void DropDownPhotoType()#region void DropDownPhotoType() void DropDownPhotoType() //这个过程是将照片类型绑定 string strSql = select * from photocolltype ; SqlConnection dbConn = DbConnection GetSqlConn(); SqlCommand dbCmd = new SqlCommand(strSql dbConn); SqlDataReader dbReader = dbCmd ExecuteReader(); DdlPhotoType Items Clear(); while (dbReader Read()) DdlPhotoType Items Add(new ListItem(dbReader[ CollType ] ToString() dbReader[ PhotoID ] ToString())); dbReader Close(); dbConn Close(); #endregion void DropDownPhotoColl()#region void DropDownPhotoColl() void DropDownPhotoColl() //这个过程是将相册类型绑定 string strSql = select * from PhotoColl where mobile= + +smobile+ ; SqlConnection dbConn = DbConnection GetSqlConn(); SqlCommand dbCmd = new SqlCommand(strSql dbConn); SqlDataReader dbReader = dbCmd ExecuteReader(); DdlPhotoColl Items Clear(); while (dbReader Read()) DdlPhotoColl Items Add(new ListItem(dbReader[ PhotoColl ] ToString() dbReader[ PhotoID ] ToString())); dbReader Close(); dbConn Close(); #endregion int GetRecordCount()#region int GetRecordCount() /**//// <summary> /// 取得记录数 /// </summary> /// <returns></returns> private int GetRecordCount() string strSql = select count(*) as tt ; strSql += from photocoll ; strSql += where mobile= + smobile; SqlConnection dbConn = DbConnection GetSqlConn(); SqlCommand dbCmd = new SqlCommand(strSql dbConn); SqlDataReader dbReader = dbCmd ExecuteReader(); int nCount = ; if(dbReader Read()) nCount = Convert ToInt (dbReader[ tt ]); dbReader Close(); dbConn Close(); return nCount; #endregion cha138/Article/program/net/201311/12300

知识大全 图片上传代码示例

知识大全图片上传代码示例