如何从MySQL Db在struts2中显示图像的斑点类型

Question

Blob type of image is reaching JSP page but it is in an unreadable format.

Service Method:

Iterator itr = list.iterator();
if (itr.hasNext()) {
     Membersdetails get = (Membersdetails) itr.next();
     repCurrentImage = get.getRepPicture();
}
return repCurrentImage;

& my Action Class:

repCurrentImage = sdf.getrepImage(loginId);

Finally My JSP page:

<img src="<s:property value="repCurrentImage"/>

Answer 1

It looks like you are trying to embed the content of the image directly into the JSP... this will not work you can only supply a url (best constructed with the struts2 url tag, which will reference the action which will return a stream result and take the required parameters to select your image).

This question/answer shows an action with such a result type which is used to render a picture: How to display image(bolb type) in jsp page from mySql DB in Struts 2 using Hibernate

I'm my experience a good DB datatype is MEDIUMBLOB, with anything smaller truncation of the image became an issue (You will just see the first part of the file because that is all that can be stored although it would probably be best in production to make sure the file fits!).