Question

以下代码获取页面加载时的图像名称：

   Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load
        If Not IsPostBack Then
            Dim getImg As New GetImage.SoapClient
            Dim ImageService As New Service.serviceClient
            Dim imageName As String = ImageService.getImgName(imageID)
            Dim binaryImage As Byte() = getImg.getImgDisplay(imageName )
            Image123.ImageUrl = "data:image/png;base64," & imageName 
        End If
    End Sub

            <asp:Image ID="Image123" runat="server" Visible="true" />

在以下代码行中，我收到了图像名称“imageName”：

  Dim binaryImage As Byte() = getImg.getImgDisplay(imageName )

如何在HTML上显示这个，因为它是一个字节？

Answer 1

byte[]不等于base64，如果您尝试在网页上嵌入，则该图片需要采用何种格式。您需要转换byte[]才能将图像嵌入到html中。

Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load
        If Not IsPostBack Then
            Dim getImg As New GetImage.SoapClient
            Dim ImageService As New Service.serviceClient
            Dim imageName As String = ImageService.getImgName(imageID)
            Dim binaryImage As Byte() = getImg.getImgDisplay(imageName )
            Image123.ImageUrl = "data:image/png;base64," & Convert.ToBase64(binaryImage)
        End If
    End Sub

asp.net使用byte显示图像

1 个答案: