C # Post text picture to server

Ching

Original address: http://blog.csdn.net/qingdujun/article/details/41764521

Recently, because the project needs to implement C # submit text and data to the server, so the study of C # PHP data transfer;

Below is an example to demonstrate, C # post text + picture, PHP side receive;

Post submission Data core code (post data submission)

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> Post text and pictures to the server///</summary>//<param name= "url" >url</param>//<para M name= "UserName" > User name </param>//<param name= "userpwd" > Password </param>//<param name= " Jpegpath "> Avatar address </param>//<returns> return server return value </returns> public string post (string url,st Ring UserName, String userpwd, String jpegpath) {//Convert picture to byte[] and convert to string string array = Con Vert.            ToBase64String (ImageToByteArray (Jpegpath));                  Constructs the post submission field string para = "name=" +username+ "&pwd=" +userpwd+ "&head=" +httputility.urlencode (array); #region HttpWebRequest notation 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 ()) {//Submit data Reqstream.write (by Tepara, 0, para.            Length);            }//Get server return value HttpWebResponse HttpWebResponse = (HttpWebResponse) httpweb.getresponse ();            Stream stream = Httpwebresponse.getresponsestream ();            StreamReader StreamReader = new StreamReader (Stream, encoding.getencoding ("Utf-8"));            Gets the return value of string result = Streamreader.readtoend (); Stream.            Close ();        #endregion//Returns the return value of the server to return result; }///<summary>//image to Byte byte array///</summary>//<param name= "FilePath" > Road Diameter </param>///<returns> byte array </Returns> Private byte[] ImageToByteArray (string FilePath) {using (MemoryStream ms = new Memor                    Ystream ()) {using (Image ImageIn = Image.FromFile (FilePath)) { using (Bitmap BMP = new Bitmap (ImageIn)) {BMP.                    Save (MS, Imagein.rawformat); }} return Ms.            ToArray (); }        }    }    }

One, C # client

To make it easier to explain, I simply simplified, and a submit button was just fine.

Second, the need to submit pictures

The picture is stored in my e-packing directory under the ~~~~~ (paste a random picture)

Path = @ "E:\head.jpg";

Third, PHP service side

After receiving the image, store it to, Path = @ "C:\Login\log";

Appendix:

C # side code:

C # Interface Simple code ~~~~~ (this code can be skipped ~~~~~)

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>///Submit the Post data///</summary>//<param name= "Sender" &GT;&L         t;/param>//<param name= "E" ></param> private void Btnpost_click (object sender, EventArgs e)            {//postclass for Data submission class Postclass PS = new Postclass ();            String url = @ "http://localhost/login.php";            String name = "DOOZN";            string pwd = "a12345";            String jpegpath = @ "E:\head.jpg";            Commit data String value = Ps.post (Url,name,pwd,jpegpath); The value is the server returns the values if (value. Contains ("1")) {MessageBox.Show ("landed successfully.");            } else if (value.            Contains ("0")) {MessageBox.Show ("Login failed.");            } else {MessageBox.Show ("Unknown error."); }        }    }}

server PHP side:

<?php$name = $_post["name"];  Get user name $pwd = $_post["pwd"];    Get Password $head = $_post["Head"];    Get Avatar if (! $name | |! $pwd | |! $head) {//return value is 2, unknown error echo "2"; return;} else if ($name = = "Doozn" && $pwd = = "a12345") {$time  = date ("Ymdhis");  Get the time to name the picture $path= "c:\\login\\";      Construct the path $path.= "log". \\";   CreateFolder ($path);      Create Save Picture Directory folder $pic=base64_decode ($head);  Picture processing $filetype= ". jpg"; $newname = $path. $time. $filetype; $fq =fopen ($newname, ' w ');//Open Path Fwrite ($FQ, $pic);    Write Picture fclose ($FQ); echo "1";         The return value is 1, the login succeeds}else{echo "0";   The return value is 0, Login failed}//Create folder function CreateFolder ($path) {if (!file_exists ($path)) {CreateFolder (dirname ($path)); MkDir ($ Path, 0777);}? >

Original address: http://blog.csdn.net/qingdujun/article/details/41764521

C # Post text picture to server