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C# WCF/REST是否将图像放入picturebox？

c# wpf web-services rest

C# WCF/REST是否将图像放入picturebox？,c#,wpf,web-services,rest,C#,Wpf,Web Services,Rest,因此，我有一个wcf rest服务，它成功地从控制台应用程序运行，如果我导航到：我的图像显示注意，300/400设置html页面主体内图像的宽度和高度 代码如下所示： namespace WcfServiceLibrary1 { [ServiceContract] public interface IReceiveData { [OperationContract] [WebInvoke(Method = "GET", BodyStyle

因此，我有一个wcf rest服务，它成功地从控制台应用程序运行，如果我导航到：我的图像显示注意，300/400设置html页面主体内图像的宽度和高度

代码如下所示：

namespace WcfServiceLibrary1
{
    [ServiceContract]
    public interface IReceiveData
    {
        [OperationContract]
        [WebInvoke(Method = "GET", BodyStyle = WebMessageBodyStyle.Wrapped, ResponseFormat = WebMessageFormat.Xml, UriTemplate = "picture/{width}/{height}")]
        Stream GetImage(string width, string height);
    }
    public class RawDataService : IReceiveData
    {
        public Stream GetImage(string width, string height)
        {
                int w, h;

                if (!Int32.TryParse(width, out w))
                {
                    w = 640;
                }
                // Handle error
                if (!Int32.TryParse(height, out h))
                {
                    h = 400;
                }
            Bitmap bitmap = new Bitmap(w, h); 
            for (int i = 0; i < bitmap.Width; i++)
            {
                for (int j = 0; j < bitmap.Height; j++)
                {
                    bitmap.SetPixel(i, j, (Math.Abs(i - j) < 2) ? Color.Blue : Color.Yellow);
                }
            }
            MemoryStream ms = new MemoryStream();
            bitmap.Save(ms, System.Drawing.Imaging.ImageFormat.Jpeg);
            ms.Position = 0;
            WebOperationContext.Current.OutgoingResponse.ContentType = "image/jpeg";
            return ms;
        }
    }
}

public Image GetImage(int width, int height)
{
    string uri = string.Format("http://localhost:8000/Service/picture/{0}/{1}", width, height);
    HttpWebRequest request = (HttpWebRequest)WebRequest.Create(uri);

    using (HttpWebResponse response = (HttpWebResponse)request.GetResponse())
    {
        using (Stream stream = response.GetResponseStream())
        {
            return new Bitmap(stream);
        }
    }
}

private void Form1_Load(object sender, EventArgs e)
{
    pictureBox.Image = GetImage(400, 500); // or any other size here
}

public ImageSource GetImage(int width, int height)
{
    string uri = string.Format("http://localhost:8000/Service/picture/{0}/{1}", width, height);
    return BitmapFrame.Create(new Uri(uri));
}
使用基于WinForms的方法获取具有可变宽度和高度的图像如下所示：

namespace WcfServiceLibrary1
{
    [ServiceContract]
    public interface IReceiveData
    {
        [OperationContract]
        [WebInvoke(Method = "GET", BodyStyle = WebMessageBodyStyle.Wrapped, ResponseFormat = WebMessageFormat.Xml, UriTemplate = "picture/{width}/{height}")]
        Stream GetImage(string width, string height);
    }
    public class RawDataService : IReceiveData
    {
        public Stream GetImage(string width, string height)
        {
                int w, h;

                if (!Int32.TryParse(width, out w))
                {
                    w = 640;
                }
                // Handle error
                if (!Int32.TryParse(height, out h))
                {
                    h = 400;
                }
            Bitmap bitmap = new Bitmap(w, h); 
            for (int i = 0; i < bitmap.Width; i++)
            {
                for (int j = 0; j < bitmap.Height; j++)
                {
                    bitmap.SetPixel(i, j, (Math.Abs(i - j) < 2) ? Color.Blue : Color.Yellow);
                }
            }
            MemoryStream ms = new MemoryStream();
            bitmap.Save(ms, System.Drawing.Imaging.ImageFormat.Jpeg);
            ms.Position = 0;
            WebOperationContext.Current.OutgoingResponse.ContentType = "image/jpeg";
            return ms;
        }
    }
}

public Image GetImage(int width, int height)
{
    string uri = string.Format("http://localhost:8000/Service/picture/{0}/{1}", width, height);
    HttpWebRequest request = (HttpWebRequest)WebRequest.Create(uri);

    using (HttpWebResponse response = (HttpWebResponse)request.GetResponse())
    {
        using (Stream stream = response.GetResponseStream())
        {
            return new Bitmap(stream);
        }
    }
}

private void Form1_Load(object sender, EventArgs e)
{
    pictureBox.Image = GetImage(400, 500); // or any other size here
}

public ImageSource GetImage(int width, int height)
{
    string uri = string.Format("http://localhost:8000/Service/picture/{0}/{1}", width, height);
    return BitmapFrame.Create(new Uri(uri));
}
您可以将图像放入如下图片框：

namespace WcfServiceLibrary1
{
    [ServiceContract]
    public interface IReceiveData
    {
        [OperationContract]
        [WebInvoke(Method = "GET", BodyStyle = WebMessageBodyStyle.Wrapped, ResponseFormat = WebMessageFormat.Xml, UriTemplate = "picture/{width}/{height}")]
        Stream GetImage(string width, string height);
    }
    public class RawDataService : IReceiveData
    {
        public Stream GetImage(string width, string height)
        {
                int w, h;

                if (!Int32.TryParse(width, out w))
                {
                    w = 640;
                }
                // Handle error
                if (!Int32.TryParse(height, out h))
                {
                    h = 400;
                }
            Bitmap bitmap = new Bitmap(w, h); 
            for (int i = 0; i < bitmap.Width; i++)
            {
                for (int j = 0; j < bitmap.Height; j++)
                {
                    bitmap.SetPixel(i, j, (Math.Abs(i - j) < 2) ? Color.Blue : Color.Yellow);
                }
            }
            MemoryStream ms = new MemoryStream();
            bitmap.Save(ms, System.Drawing.Imaging.ImageFormat.Jpeg);
            ms.Position = 0;
            WebOperationContext.Current.OutgoingResponse.ContentType = "image/jpeg";
            return ms;
        }
    }
}

public Image GetImage(int width, int height)
{
    string uri = string.Format("http://localhost:8000/Service/picture/{0}/{1}", width, height);
    HttpWebRequest request = (HttpWebRequest)WebRequest.Create(uri);

    using (HttpWebResponse response = (HttpWebResponse)request.GetResponse())
    {
        using (Stream stream = response.GetResponseStream())
        {
            return new Bitmap(stream);
        }
    }
}

private void Form1_Load(object sender, EventArgs e)
{
    pictureBox.Image = GetImage(400, 500); // or any other size here
}

public ImageSource GetImage(int width, int height)
{
    string uri = string.Format("http://localhost:8000/Service/picture/{0}/{1}", width, height);
    return BitmapFrame.Create(new Uri(uri));
}
在WPF中，您可以执行以下操作：

namespace WcfServiceLibrary1
{
    [ServiceContract]
    public interface IReceiveData
    {
        [OperationContract]
        [WebInvoke(Method = "GET", BodyStyle = WebMessageBodyStyle.Wrapped, ResponseFormat = WebMessageFormat.Xml, UriTemplate = "picture/{width}/{height}")]
        Stream GetImage(string width, string height);
    }
    public class RawDataService : IReceiveData
    {
        public Stream GetImage(string width, string height)
        {
                int w, h;

                if (!Int32.TryParse(width, out w))
                {
                    w = 640;
                }
                // Handle error
                if (!Int32.TryParse(height, out h))
                {
                    h = 400;
                }
            Bitmap bitmap = new Bitmap(w, h); 
            for (int i = 0; i < bitmap.Width; i++)
            {
                for (int j = 0; j < bitmap.Height; j++)
                {
                    bitmap.SetPixel(i, j, (Math.Abs(i - j) < 2) ? Color.Blue : Color.Yellow);
                }
            }
            MemoryStream ms = new MemoryStream();
            bitmap.Save(ms, System.Drawing.Imaging.ImageFormat.Jpeg);
            ms.Position = 0;
            WebOperationContext.Current.OutgoingResponse.ContentType = "image/jpeg";
            return ms;
        }
    }
}

public Image GetImage(int width, int height)
{
    string uri = string.Format("http://localhost:8000/Service/picture/{0}/{1}", width, height);
    HttpWebRequest request = (HttpWebRequest)WebRequest.Create(uri);

    using (HttpWebResponse response = (HttpWebResponse)request.GetResponse())
    {
        using (Stream stream = response.GetResponseStream())
        {
            return new Bitmap(stream);
        }
    }
}

private void Form1_Load(object sender, EventArgs e)
{
    pictureBox.Image = GetImage(400, 500); // or any other size here
}

public ImageSource GetImage(int width, int height)
{
    string uri = string.Format("http://localhost:8000/Service/picture/{0}/{1}", width, height);
    return BitmapFrame.Create(new Uri(uri));
}
请写出您对在请求URL中用“/”分隔宽度和高度参数的评论。更为RESTful的方法是将其作为参数传递，例如URL如下所示：

http://localhost:8000/Service/picture?width=480&height=640

[WebInvoke(Method = "GET", BodyStyle = WebMessageBodyStyle.Wrapped, ResponseFormat = WebMessageFormat.Xml, UriTemplate = "picture?width={width}&height={height}")]
您的WebInvoke看起来像：

http://localhost:8000/Service/picture?width=480&height=640

[WebInvoke(Method = "GET", BodyStyle = WebMessageBodyStyle.Wrapped, ResponseFormat = WebMessageFormat.Xml, UriTemplate = "picture?width={width}&height={height}")]
GetImage方法无需更改，参数的填充方式将与原始UriTemplate相同。

System.IO.Stream不包含CopyTo的定义？请参阅编辑。更简单。CopyTo在.NET4.0中，但您不需要它。是的，它的工作原理令人惊讶，谢谢您的wpf！就像你能读懂我的心思一样！David请看，我能问一下为什么图片？宽度=480和高度=640更安静？因为宽度和高度是图片资源的属性，而不是资源本身的属性。