.NET Core 2.0如何生成图片验证码完整实例(2)

using System.DrawingCore.Imaging; using System.IO; using Common.Helper; using Microsoft.AspNetCore.Mvc; namespace WebApplicationApi.Controllers { public class VerifyCodeController : Controller { public IActionResult Index() { return View(); } /// <summary> /// 数字验证码 /// </summary> /// <returns></returns> public FileContentResult NumberVerifyCode() { string code = VerifyCodeHelper.GetSingleObj().CreateVerifyCode(VerifyCodeHelper.VerifyCodeType.NumberVerifyCode); byte[] codeImage = VerifyCodeHelper.GetSingleObj().CreateByteByImgVerifyCode(code, 100, 40); return File(codeImage, @"image/jpeg"); } /// <summary> /// 字母验证码 /// </summary> /// <returns></returns> public FileContentResult AbcVerifyCode() { string code = VerifyCodeHelper.GetSingleObj().CreateVerifyCode(VerifyCodeHelper.VerifyCodeType.AbcVerifyCode); var bitmap = VerifyCodeHelper.GetSingleObj().CreateBitmapByImgVerifyCode(code, 100, 40); MemoryStream stream = new MemoryStream(); bitmap.Save(stream, ImageFormat.Png); return File(stream.ToArray(), "image/png"); } /// <summary> /// 混合验证码 /// </summary> /// <returns></returns> public FileContentResult MixVerifyCode() { string code = VerifyCodeHelper.GetSingleObj().CreateVerifyCode(VerifyCodeHelper.VerifyCodeType.MixVerifyCode); var bitmap = VerifyCodeHelper.GetSingleObj().CreateBitmapByImgVerifyCode(code, 100, 40); MemoryStream stream = new MemoryStream(); bitmap.Save(stream, ImageFormat.Gif); return File(stream.ToArray(), "image/gif"); } } }

添加页面index.cshtml，如下代码：