iText image in java servlet

Question

I'm doing the letter generation with iText (pdf/rtf) in java servlet and got a problem with accessing images. The images are in the WebContent/images folder. When I run it in a local server and pointing the full path of images directory (c://eclipse/myproject/WebContent/images/letterHead.jpg) its working, but it fails running on the server with the directory ("WebContent/images/letterHead.jpg"). The project is being deployed as a WAR on a tomcat server, thus ending up with an address similar to ``` http://someserver:8081/projectName/someJSP.jsp ``` I don't understand how to reference the images relatively in this environment, and any help would be much appreciated. Here is my code ``` Image imghead = Image.getInstance("WebContent/images/letterHead.jpg"); imghead.setAbsolutePosition(35,770); imghead.scaleAbsolute(125, 42); document.add(imghead); ```

Accepted Answer

You should never use relative paths in `java.io` stuff. You will be dependent on the current working directory which is in no way controllable in case of a webapplication. Always use absolute disk file system paths. Thus, `c:/full/path/to/file.ext`.

You can use `ServletContext#getRealPath()` to convert a relative web path to an absolute disk file system path. The relative web path is rooted on the public webcontent folder which is in your case thus `/WebContent`. So, you need to replace the first line of above code by:

```
String relativeWebPath = "/images/letterHead.jpg";
String absoluteDiskPath = getServletContext().getRealPath(relativeWebPath);
Image imghead = Image.getInstance(absoluteDiskPath);
// ...
```

iText image in java servlet

Solution

Problem