c# post文字圖片至服務器


最近由於項目需要實現c#提交文字及數據至服務器,因此研究了一下c# php數據傳送;

下面用一個示例來演示,c# post文字+圖片 ,php端接收;

 

post提交數據核心代碼(post數據提交)

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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>
         /// 向服務器post文字和圖片
         /// </summary>
         ///<param name="url">url
         ///<param name="userName">用戶名
         ///<param name="userPwd">密碼
         ///<param name="jpegPath">頭像地址
         /// <returns>返回服務器返回值</returns>
         public string post(string url,string userName, string userPwd, string jpegPath)
         {
             //將圖片轉化為byte[]再轉化為string
             string array = Convert.ToBase64String(imageToByteArray(jpegPath));
             //構造post提交字段
             string para = name=+userName+&pwd=+userPwd+&head=+HttpUtility.UrlEncode(array);
       
             #region HttpWebRequest寫法
 
             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())
             {
                 //提交數據
                 reqStream.Write(bytePara, 0 , para.Length);
             }
             //獲取服務器返回值
             HttpWebResponse httpWebResponse = (HttpWebResponse)httpWeb.GetResponse();
             Stream stream = httpWebResponse.GetResponseStream();
             StreamReader streamReader = new StreamReader(stream, Encoding.GetEncoding(utf- 8 ));
             //獲得返回值
             string result = streamReader.ReadToEnd();
             stream.Close();
 
             #endregion
             //將服務器返回值返回
             return result;
         }
 
         /// <summary>
         /// 圖片轉為Byte字節數組
         /// </summary>
         ///<param name="FilePath">路徑
         /// <returns>字節數組</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#客戶端

為了方便說明,我直接簡化了,一個提交按鈕就好了。

data-cke-saved-src=http://www.2cto.com/uploadfile/Collfiles/20141206/20141206085359118.png

 

二、需要提交的圖片

該圖片存放在俺的E盤根目錄下面~~~~~(貼吧隨便抓的一張圖片)

path = @E:head.jpg;

data-cke-saved-src=http://www.2cto.com/uploadfile/Collfiles/20141206/20141206085359119.jpg

 

三、php服務端

接收圖片后存放至,path = @C:Loginlog;

 

附錄:

c#端代碼:

c#界面簡單代碼~~~~~(該代碼可略過~~~~~)

 

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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>
         /// 提交按鈕,提交post數據
         /// </summary>
         ///<param name="sender">
         ///<param name="e">
         private void btnpost_Click(object sender, EventArgs e)
         {
             //postClass為數據提交類
             postClass ps = new postClass();
             string url = @http : //localhost/login.php;
             string name = DooZn;
             string pwd = a12345;
             string jpegPath = @E :head.jpg;
 
             //提交數據
             string value = ps.post(url,name,pwd,jpegPath);
 
             //value為服務器返回值
             if (value.Contains( 1 ))
             {
                 MessageBox.Show(登陸成功.);
             }
             else if (value.Contains( 0 ))
             {
                 MessageBox.Show(登陸失敗.);
             }
             else
             {
                 MessageBox.Show(未知錯誤.);
             }
         }
     }
}

 

 


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