/// <summary>
/// 图片转base64
/// </summary>
/// <typeparam name="T"></typeparam>
/// <param name="ImageName"></param>
/// <returns></returns>
public static CommonResult <T> ImageToBase64String <T>(string ImageName) where T : class
{
CommonResult <T> result = new CommonResult <T> {
Code = Code.Success, Message = "", Result = default(T)
};
string path1 = HttpContext.Current.Server.MapPath(@"~/Images/" + ImageName);
try
{
//Image途径实例化位图
Bitmap bmap = new Bitmap(path1);
//内存流
MemoryStream ms = new MemoryStream();
//将图片以jpeg形式 保存到内存流中
bmap.Save(ms, System.Drawing.Imaging.ImageFormat.Jpeg);
//实例化内存流长度的byte数组
byte[] arr = new byte[ms.Length];
//设置内存流读的起始位置
ms.Position = 0;
//读取
ms.Read(arr, 0, (int)ms.Length);
ms.Close();
string base64 = Convert.ToBase64String(arr);
result.Result = base64 as T;
result.Message = "成功";
return(result);
}catch (Exception e)
{
Console.WriteLine(e.Message.ToString());
result.Code = Code.Failed;
result.Message = "失败";
return(result);
}
}
/// <summary>
/// base64转Image
/// </summary>
/// <param name="filePath"></param>
/// <param name="base64Str"></param>
public static CommonResult <T> Base64StringToImage(string Name, string base64Str)
{
CommonResult <T> result = new CommonResult <T> {
Code = Code.Success, Message = "", Result = default(T)
};
try
{
string inputStr = base64Str;
//将base64转成byte[]
byte[] bytes = Convert.FromBase64String(inputStr);
//bytes -> MemoryStream
MemoryStream ms = new MemoryStream(bytes);
//MemoryStream -> Bitmap
Bitmap bmap = new Bitmap(ms);
//保存图片到指定路径
bmap.Save(HttpContext.Current.Server.MapPath(@"~/Images/" + Name + ".jpg"),
System.Drawing.Imaging.ImageFormat.Jpeg);
ms.Close();
result.Message = WebBase.GetRootPath() + @"Images/" + Name + ".jpg";
return(result);
}
catch (Exception e)
{
Console.WriteLine(e.Message.ToString());
result.Code = Code.Failed;
result.Message = "失败";
return(result);
}
}