不解释，只是贴贴代码
控制台：
using System;
using System.Collections.Generic;
using System.Drawing;
using System.Drawing.Imaging;
using System.IO;
using System.Linq;
using System.Net;
using System.Text;
using System.Windows.Forms;
namespace uploadFile
{
class Program
{
private static Bitmap bitmap = null;
private static string userName = Environment.MachineName;
static void Main(string[] args)
{
ExecCutScreen();
Console.ReadLine();
}
/// <summary>
/// 全屏截图
/// </summary>
public static void ExecCutScreen()
{
bitmap = new Bitmap(Screen.PrimaryScreen.Bounds.Width, Screen.PrimaryScreen.Bounds.Height);
Graphics gp = Graphics.FromImage(bitmap);
gp.CopyFromScreen(new Point(Screen.PrimaryScreen.Bounds.X, Screen.PrimaryScreen.Bounds.Y), new Point(0, 0), bitmap.Size, CopyPixelOperation.SourceCopy);
try
{
string newImg = Guid.NewGuid().ToString(); ;
//判断图片是否存在，存在将其删除，用新的替代
if (File.Exists(newImg))
{
File.Delete(newImg);
}
//bitmap.Save("D://"+ newImg, ImageFormat.Png);
UploadImg(userName, BmpToByte(bitmap));
}
catch (Exception ex)
{
}
finally
{
gp.Dispose();
bitmap.Dispose();
}
}
public static void UploadImg(string userName, byte[] fileBytepdf)
{
var httpUpload = new HttpUpload();
httpUpload.SetFieldValue("userName", userName);
string _apiUrl = "http://localhost:54556/api/UploadFile";
httpUpload.SetFieldValue("img.png", "img.png", "application/octet-stream", fileBytepdf);
string responStr = "";
bool suc = httpUpload.Upload(_apiUrl, out responStr);
Console.WriteLine(suc);
Console.ReadLine();
}
public static byte[] BmpToByte(Bitmap bitmap)
{
MemoryStream ms = new MemoryStream();
bitmap.Save(ms, System.Drawing.Imaging.ImageFormat.Png);
byte[] bytes = ms.GetBuffer();
ms.Close();
return bytes;
}
}
}
HttpUpload类：
using System;
using System.Collections;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Net;
using System.Text;
namespace uploadFile
{
public class HttpUpload
{
private ArrayList bytesArray;
private Encoding encoding = Encoding.UTF8;
private string boundary = String.Empty;
public HttpUpload()
{
bytesArray = new ArrayList();
string flag = DateTime.Now.Ticks.ToString("x");
boundary = "---------------------------" + flag;
}
/// <summary>
/// 合并请求数据
/// </summary>
/// <returns></returns>
private byte[] MergeContent()
{
int length = 0;
int readLength = 0;
string endBoundary = "--" + boundary + "--\r\n";
byte[] endBoundaryBytes = encoding.GetBytes(endBoundary);
bytesArray.Add(endBoundaryBytes);
foreach (byte[] b in bytesArray)
{
length += b.Length;
}
byte[] bytes = new byte[length];
foreach (byte[] b in bytesArray)
{
b.CopyTo(bytes, readLength);
readLength += b.Length;
}
return bytes;
}
/// <summary>
/// 上传
/// </summary>
/// <param name="requestUrl">请求url</param>
/// <param name="responseText">响应</param>
/// <returns></returns>
public bool Upload(String requestUrl, out String responseText)
{
WebClient webClient = new WebClient();
webClient.Headers.Add("Content-Type", "multipart/form-data; boundary=" + boundary);
byte[] responseBytes;
byte[] bytes = MergeContent();
try
{
responseBytes = webClient.UploadData(requestUrl, bytes);
responseText = System.Text.Encoding.UTF8.GetString(responseBytes);
return true;
}
catch (WebException ex)
{
Stream responseStream = ex.Response.GetResponseStream();
responseBytes = new byte[ex.Response.ContentLength];
responseStream.Read(responseBytes, 0, responseBytes.Length);
}
responseText = System.Text.Encoding.UTF8.GetString(responseBytes);
return false;
}
/// <summary>
/// 设置表单数据字段
/// </summary>
/// <param name="fieldName">字段名</param>
/// <param name="fieldValue">字段值</param>
/// <returns></returns>
public void SetFieldValue(String fieldName, String fieldValue)
{
string httpRow = "--" + boundary + "\r\nContent-Disposition: form-data; name=\"{0}\"\r\n\r\n{1}\r\n";
string httpRowData = String.Format(httpRow, fieldName, fieldValue);
bytesArray.Add(encoding.GetBytes(httpRowData));
}
/// <summary>
/// 设置表单文件数据
/// </summary>
/// <param name="fieldName">字段名</param>
/// <param name="filename">字段值</param>
/// <param name="contentType">内容内型</param>
/// <param name="fileBytes">文件字节流</param>
/// <returns></returns>
public void SetFieldValue(String fieldName, String filename, String contentType, Byte[] fileBytes)
{
string end = "\r\n";
string httpRow = "--" + boundary + "\r\nContent-Disposition: form-data; name=\"{0}\"; filename=\"{1}\"\r\nContent-Type: {2}\r\n\r\n";
string httpRowData = String.Format(httpRow, fieldName, filename, contentType);
byte[] headerBytes = encoding.GetBytes(httpRowData);
byte[] endBytes = encoding.GetBytes(end);
byte[] fileDataBytes = new byte[headerBytes.Length + fileBytes.Length + endBytes.Length];
headerBytes.CopyTo(fileDataBytes, 0);
fileBytes.CopyTo(fileDataBytes, headerBytes.Length);
endBytes.CopyTo(fileDataBytes, headerBytes.Length + fileBytes.Length);
bytesArray.Add(fileDataBytes);
}
}
}
WebApi控制器：
public IHttpActionResult UploadPhoto()
{
string userName = HttpContext.Current.Request["userName"];
HttpFileCollection files = HttpContext.Current.Request.Files;
foreach (string key in files.AllKeys)
{
HttpPostedFile file = files[key];//file.ContentLength文件长度
if (string.IsNullOrEmpty(file.FileName) == false)
{
string ext = Path.GetExtension(file.FileName);
string newFileName = userName +"_"+ DateTime.Now.ToString("yyyyMMddHHmmss") + ext;
string path = HttpContext.Current.Server.MapPath("~/App_Data/CareImg/");
if (!Directory.Exists(path))
{
Directory.CreateDirectory(path);
}
file.SaveAs(path + newFileName);
}
}
return Ok<string>("ok");
}
