如何在JSF中显示数据库中的图像

问题描述：

我有一些图像以BLOB形式存储在数据库中.现在，我可以使用Richfaces mediaOutput标签在我的jsf页面中显示它们.

I have images that are stored in the database as a BLOB. Now I can display them in my jsf pages using Richfaces mediaOutput tag.

当图像存储在数据库中时，图像是否可能具有"/images/image.jpg"之类的路径.

Is it possible for images to have path like "/images/image.jpg" while images are stored in the database.

在寻找答案时，我遇到了如下问题:

While searching for an answer I came around something like this:

@GET
@Path("/files/{filename}")
@Produces(MediaType.WILDCARD)

最诚挚的问候，伊利亚·西多罗维奇(Ilya Sidorovich)

Best regards, Ilya Sidorovich

答

您可以编写一个Servlet来处理对/image/*或适合您的每个请求. 在Servlet中，您可以通过请求参数从数据库中检索正确的数据. 然后通过

You could write a servlet picking up every request to /image/* or something that suits you. And in your servlet you retrieve the correct data from your database via request parameters. And you write out the data via

response.getOutputStream().write(content);

(内容是您图像的字节数组)

(content being the bytearray of you image)

如何在JSF中显示数据库中的图像

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