[英]IBM XMS .Net how do I receive images files like png and jpg from the MQ
I have a .net XMS client to receive messages from the MQ.我有一个 .net XMS 客户端来接收来自 MQ 的消息。 It can receive text files fine.它可以很好地接收文本文件。 But the problem starts when I try to receive .zip or png files.但是当我尝试接收 .zip 或 png 文件时问题就开始了。 The problem is that the file saved is corrupted and always intreprets it as textmessage.问题是保存的文件已损坏并且总是将其解释为短信。
var filename = "test.png";
else if (message is IBytesMessage)
{
IBytesMessage bytesMessage = (IBytesMessage)message;
var messageLength = bytesMessage.ReadInt();
byte[] uploadPayload = new byte[messageLength];
bytesMessage.ReadBytes(uploadPayload, messageLength);
var filePath = _fileUtil.SaveBytesFile(fileName, uploadPayload);
return filePath;
}
if (message is ITextMessage)
{
var msg = (ITextMessage)message;
var result = msg.Text;
var plainTextBytes = Encoding.UTF8.GetBytes(result);
var filePath = _fileUtil.SaveBytesFile(fileName, plainTextBytes);
return filePath;
}
The msg.Text removes the characerters. msg.Text删除字符。
I opened the original png file in notepad++ and find the characters, for example below我在记事本++中打开原始png文件并找到字符,例如下面
O-humMkkVøgÆUf¯éÙô
I tried also copying the text and pasting the text in an new file corrupts the file.我还尝试复制文本并将文本粘贴到新文件中会损坏文件。 Am I missing something... gets translated to我错过了什么......被翻译成
O-humMkkV?g?Uf????
Anyway to read it with the missing characters无论如何用丢失的字符阅读它
Send binary data (files) to MQ as type IBytesMessage .将二进制数据(文件)作为IBytesMessage类型发送到 MQ。
You should use BodyLength to define the size of the byte[], not ReadInt .您应该使用BodyLength来定义 byte[] 的大小,而不是ReadInt 。
Change the following line:更改以下行:
var messageLength = bytesMessage.ReadInt();
To:到:
var messageLength = (int)bytesMessage.BodyLength;
The ITextMessage logic works as expected when the content is text.当内容为文本时, ITextMessage逻辑按预期工作。
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