ZK 讀取WEB-INF中的圖檔

ZK 取得WEB-INF中的檔案的方法如下

例如要讀取WEB-INF/imgs/default.png，並轉成org.zkoss.image.Image。

String fileName = "default.png"
String filePath = "/WEB-INF/imgs/" + fileName;
ServletContext ctx = Sessions.getCurrent().getWebApp().getServletContext();
InputStream input = ctx.getResourceAsStream(filePath);
Image image = Images.encode(fileName, ImageIO.read(input));

取得ServletContext並呼叫getResourceAsStream()，然後使用org.zkoss.image.Images.encode()將java.awt.image.BufferedImage轉成ZK的org.zkoss.image.Image。

參考：

• What does servletcontext.getRealPath(“/”) mean and when should I use it
• Where to place and how to read configuration resource files in servlet based application?
• How to make ImageIO read from InputStream :Java
• Reading/Loading an Image