c# post文字图片至服务器


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;

 

post提交数据核心代码(post数据提交)

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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>
         /// 向服务器post文字和图片
         /// </summary>
         ///<param name="url">url
         ///<param name="userName">用户名
         ///<param name="userPwd">密码
         ///<param name="jpegPath">头像地址
         /// <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
         /// <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。

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

 

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;

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

 

三、php服务端

接收图片后存放至,path = @C:Loginlog;

 

附录:

c#端代码:

c#界面简单代码~~~~~(该代码可略过~~~~~)

 

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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>
         /// 提交按钮,提交post数据
         /// </summary>
         ///<param name="sender">
         ///<param name="e">
         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.);
             }
         }
     }
}

 

 


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