c# post文字图片至服务器

来源:互联网 发布:快照优化 编辑:程序博客网 时间:2024/06/03 09:15

作者:卿笃军

原文地址:http://blog.csdn.net/qingdujun/article/details/41764521


最近由于项目需要实现c#提交文字及数据至服务器,因此研究了一下c# php数据传送;

下面用一个示例来演示,c# post文字+图片 ,php端接收;

需要添加:using system.web;  

如果你的VS2010中右边引用栏.NET里面没有,可以在如下目录中查找该.dll添加进来即可

path = @"C:\Windows\Microsoft.NET\Framework\v2.0.50727"

post提交数据核心代码(post数据提交)

using System;using System.Collections.Generic;using System.Linq;using System.Text;using System.IO;using System.Drawing;using System.Web;using System.Net;namespace postpic{    class postClass    {        /// <summary>        /// 向服务器post文字和图片        /// </summary>        /// <param name="url">url</param>        /// <param name="userName">用户名</param>        /// <param name="userPwd">密码</param>        /// <param name="jpegPath">头像地址</param>        /// <returns>返回服务器返回值</returns>        public string post(string url,string userName, string userPwd, string jpegPath)        {            //将图片转化为byte[]再转化为string            string array = Convert.ToBase64String(imageToByteArray(jpegPath));            //构造post提交字段            string para = "name="+userName+"&pwd="+userPwd+"&head="+HttpUtility.UrlEncode(array);                  #region HttpWebRequest写法            HttpWebRequest httpWeb = (HttpWebRequest)WebRequest.Create(url);            httpWeb.Timeout = 20000;            httpWeb.Method = "POST";            httpWeb.ContentType = "application/x-www-form-urlencoded";            byte[] bytePara = Encoding.ASCII.GetBytes(para);            using (Stream reqStream = httpWeb.GetRequestStream())            {                //提交数据                reqStream.Write(bytePara, 0, para.Length);            }            //获取服务器返回值            HttpWebResponse httpWebResponse = (HttpWebResponse)httpWeb.GetResponse();            Stream stream = httpWebResponse.GetResponseStream();            StreamReader streamReader = new StreamReader(stream, Encoding.GetEncoding("utf-8"));            //获得返回值            string result = streamReader.ReadToEnd();            stream.Close();            #endregion            //将服务器返回值返回            return result;        }        /// <summary>        /// 图片转为Byte字节数组        /// </summary>        /// <param name="FilePath">路径</param>        /// <returns>字节数组</returns>        private byte[] imageToByteArray(string FilePath)        {            using (MemoryStream ms = new MemoryStream())            {                using (Image imageIn = Image.FromFile(FilePath))                {                    using (Bitmap bmp = new Bitmap(imageIn))                    {                        bmp.Save(ms, imageIn.RawFormat);                    }                }                return ms.ToArray();            }        }    }    }

一、c#客户端

为了方便说明,我直接简化了,一个提交按钮就好了。



二、需要提交的图片

该图片存放在俺的E盘根目录下面~~~~~(贴吧随便抓的一张图片)

path =  @"E:\head.jpg";



三、php服务端

接收图片后存放至,path = @"C:\Login\log";


四、附录:

c#端代码:

c#界面简单代码~~~~~(该代码可略过~~~~~)

using System;using System.Collections.Generic;using System.ComponentModel;using System.Data;using System.Drawing;using System.Linq;using System.Text;using System.Windows.Forms;namespace postpic{    public partial class postFrom : Form    {        public postFrom()        {            InitializeComponent();        }        /// <summary>        /// 提交按钮,提交post数据        /// </summary>        /// <param name="sender"></param>        /// <param name="e"></param>        private void btnpost_Click(object sender, EventArgs e)        {            //postClass为数据提交类            postClass ps = new postClass();            string url = @"http://localhost/login.php";            string name = "DooZn";            string pwd = "a12345";            string jpegPath = @"E:\head.jpg";            //提交数据            string value = ps.post(url,name,pwd,jpegPath);            //value为服务器返回值            if (value.Contains("1"))            {                MessageBox.Show("登陆成功.");            }            else if (value.Contains("0"))            {                MessageBox.Show("登陆失败.");            }            else            {                MessageBox.Show("未知错误.");            }        }    }}
服务器php端:

<?php$name = $_POST["name"];  //获取用户名$pwd = $_POST["pwd"];    //获取密码$head = $_POST["head"];    //获取头像if(!$name || !$pwd || !$head){//返回值为2,未知错误echo "2";return;}else if ($name == "DooZn" && $pwd == "a12345"){$time  = date("YmdHis");  //获取时间,用来给图片命名$path="c:\\Login\\";      //构造路径$path.="log"."\\";   createFolder($path);      //创建保存图片目录文件夹$pic=base64_decode($head);  //图片处理$filetype=".jpg";$newname=$path.$time.$filetype; $fq=fopen($newname,'w');//打开路径fwrite($fq,$pic);    //写入图片fclose($fq);echo "1";         //返回值为1,登陆成功}else{echo "0";   //返回值为0,登陆失败}//创建文件夹function createFolder($path){if (!file_exists($path)){createFolder(dirname($path));mkdir($path, 0777);}}?>
原文地址:http://blog.csdn.net/qingdujun/article/details/41764521


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