发布：2022/6/29 10:42:30作者：管理员 来源：本站 浏览次数：998
using Maticsoft.Model.DTO;
using OnlineAPI.Utility;
using System;
using System.Collections;
using System.Collections.Generic;
using System.Drawing;
using System.Linq;
using System.Net;
using System.Net.Http;
using System.Threading.Tasks;
using System.Web;
using System.Web.Http;
using System.Web.Http.Results;
using Maticsoft.Common;
using System.IO;
using System.Net.Http.Headers;
using System.Text;
namespace OnlineAPI.Controllers
{
/// <summary>
/// 验证码服务
/// </summary>
[RoutePrefix("code")]
public class CodeController : BaseController
{
/// <summary>
/// 获取验证码
/// </summary>
/// <param name="guid"></param>
[HttpGet,Route("CreateCheckCodeImage")]
public void CreateCheckCodeImage(string guid)
{
if (string.IsNullOrEmpty(guid)) {
return;
}
string checkCode = CodeHelper.MakeValidateCode();
_Redis.Set(guid, checkCode, 1);
if (checkCode == null || checkCode.Trim() == String.Empty)
return;
System.Drawing.Bitmap image = new System.Drawing.Bitmap((int)Math.Ceiling((checkCode.Length * 14.5)), 22);
Graphics g = Graphics.FromImage(image);
try
{
//生成随机生成器
Random random = new Random();
//清空图片背景色
g.Clear(Color.White);
//画图片的背景噪音线
for (int i = 0; i < 3; i++)
{
int x1 = random.Next(image.Width);
int x2 = random.Next(image.Width);
int y1 = random.Next(image.Height);
int y2 = random.Next(image.Height);
g.DrawLine(new Pen(Color.Black), x1, y1, x2, y2);
}
Font font = new System.Drawing.Font("Arial", 12, (System.Drawing.FontStyle.Bold | System.Drawing.FontStyle.Italic));
System.Drawing.Drawing2D.LinearGradientBrush brush = new System.Drawing.Drawing2D.LinearGradientBrush(new Rectangle(0, 0, image.Width, image.Height), Color.Green, Color.DarkRed, 1.2f, true);
g.DrawString(checkCode, font, brush, 2, 2);
//画图片的前景噪音点
for (int i = 0; i < 30; i++)
{
int x = random.Next(image.Width);
int y = random.Next(image.Height);
image.SetPixel(x, y, Color.FromArgb(random.Next()));
}
//画图片的边框线
g.DrawRectangle(new Pen(Color.Silver), 0, 0, image.Width - 1, image.Height - 1);
System.IO.MemoryStream ms = new System.IO.MemoryStream();
image.Save(ms, System.Drawing.Imaging.ImageFormat.Gif);
HttpContext.Current.Response.ClearContent();
HttpContext.Current.Response.ContentType = "image/Gif";
HttpContext.Current.Response.BinaryWrite(ms.ToArray());
}
finally
{
g.Dispose();
image.Dispose();
}
}
/// <summary>
/// WebApi返回图片
/// </summary>
[HttpGet, Route("GetQrCode")]
public HttpResponseMessage GetQrCode0(string guid)
{
if (string.IsNullOrEmpty(guid))
{
return null;
}
string checkCode = CodeHelper.MakeValidateCode();
_Redis.Set(guid, checkCode, 1);
if (checkCode == null || checkCode.Trim() == String.Empty)
return null;
System.Drawing.Bitmap image = new System.Drawing.Bitmap((int)Math.Ceiling((checkCode.Length * 14.5)), 22);
Graphics g = Graphics.FromImage(image);
try
{
//生成随机生成器
Random random = new Random();
//清空图片背景色
g.Clear(Color.White);
//画图片的背景噪音线
for (int i = 0; i < 3; i++)
{
int x1 = random.Next(image.Width);
int x2 = random.Next(image.Width);
int y1 = random.Next(image.Height);
int y2 = random.Next(image.Height);
g.DrawLine(new Pen(Color.Black), x1, y1, x2, y2);
}
Font font = new System.Drawing.Font("Arial", 12, (System.Drawing.FontStyle.Bold | System.Drawing.FontStyle.Italic));
System.Drawing.Drawing2D.LinearGradientBrush brush = new System.Drawing.Drawing2D.LinearGradientBrush(new Rectangle(0, 0, image.Width, image.Height), Color.Green, Color.DarkRed, 1.2f, true);
g.DrawString(checkCode, font, brush, 2, 2);
//画图片的前景噪音点
for (int i = 0; i < 30; i++)
{
int x = random.Next(image.Width);
int y = random.Next(image.Height);
image.SetPixel(x, y, Color.FromArgb(random.Next()));
}
//画图片的边框线
g.DrawRectangle(new Pen(Color.Silver), 0, 0, image.Width - 1, image.Height - 1);
System.IO.MemoryStream ms = new System.IO.MemoryStream();
image.Save(ms, System.Drawing.Imaging.ImageFormat.Gif);
HttpContext.Current.Response.ClearContent();
HttpContext.Current.Response.ContentType = "image/Gif";
HttpContext.Current.Response.BinaryWrite(ms.ToArray());
var resp = new HttpResponseMessage(HttpStatusCode.OK)
{
//Content = new ByteArrayContent(imgByte)
//或者
Content = new StreamContent(ms)
};
resp.Content.Headers.ContentType = new MediaTypeHeaderValue("image/jpg");
return resp;
}
finally
{
g.Dispose();
image.Dispose();
}
}
/// <summary>
/// WebApi返回图片
/// </summary>
public HttpResponseMessage GetQrCode()
{
var imgPath = @"D:\ITdosCom\Images\itdos.jpg";
//从图片中读取byte
var imgByte = File.ReadAllBytes(imgPath);
//从图片中读取流
var imgStream = new MemoryStream(File.ReadAllBytes(imgPath));
var resp = new HttpResponseMessage(HttpStatusCode.OK)
{
Content = new ByteArrayContent(imgByte)
//或者
//Content = new StreamContent(stream)
};
resp.Content.Headers.ContentType = new MediaTypeHeaderValue("image/jpg");
return resp;
}
/// <summary>
/// WebApi返回json数据
/// </summary>
public HttpResponseMessage GetQrCode1()
{
var jsonStr = "{\"IsSuccess\":true,\"Data\":\"www.itdos.com\"}";
var result = new HttpResponseMessage(HttpStatusCode.OK)
{
Content = new StringContent(jsonStr, Encoding.UTF8, "text/json")
};
return result;
}
/// <summary>
/// WebApi返回字符串
/// </summary>
public HttpResponseMessage GetQrCode2()
{
var str = "IT大师www.itdos.com";
var result = new HttpResponseMessage(HttpStatusCode.OK)
{
Content = new StringContent(str, Encoding.UTF8, "text/plain")
};
return result;
}
}
}
