Question

我在本地拥有图像，我需要将它们转换为二进制格式并将它们存储在我的SQL Server数据库中，并且应该能够从SSRS报告中访问它们。

请帮我解决这个问题。

Answer 1

将图像转换为使用File Upload上传的二进制字节，如

(byte[])fileuploader.FileBytes

并将其作为参数发送到SQL Server

中的插入命令或存储过程

在SSRS报告中，执行以下步骤

在报告中插入图片
右键点击图片，然后选择Image Properties
在Image Properties窗口中，选择select image source as: Database

<强>加成

按照以下步骤从数据库中存储和检索客户的徽标图像，并在SSRS报告中显示

1.将使用File Upload Control上传的客户端的徽标图像转换为

(byte[])fileuploader.FileBytes

2.将其作为插入命令或存储过程的参数传递给客户端的其他详细信息，如

Create Table Client_Details
{
 PK_ClientID int Identity(1,1),
 Client_Name Varchar(250),
 Client_Address Varchar(750),
 Client_Logo Varbinary(max),
 Last_insDate datetime
}

根据登录的客户端从PK_Clientid表中检索Client_Details并将其存储在Session变量中，并将Session["PK_Clientid"]作为Clientid参数传递到SSRS报告以检索客户详细信息以及客户的徽标图像，并在上面提到的报告中显示

Answer 2

最初发布图片时确保表单是enctype =＆＃34; multipart / form-data＆＃34;。然后捕获文件并将其转换为byte []，如下面的服务中所示，然后将其插入SQLSERVER

var FileStream=Request.Files;
byte[] bytesInStream = new byte[FileStream[0].InputStream.Length];
FileStream[0].InputStream.Read(bytesInStream, 0, bytesInStream.Length);

再次检索时，需要将其转换为base64字符串并传递给图像标记

<img src="data:image/jpeg;base64,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">


<img src="data:image/jpeg;base64,StringHere" >

如何将Image转换为二进制并将其存储在SQL Server中？

2 个答案: