WebSphere Gotcha - Streaming in WAS 8

WebSphere Gotcha - Streaming in WAS 8

here's a little gotcha in WebSphere 8; if you're using Spring MVC and you decide to serve non-jsp content from behind the WEB-INF directory (e.g. a javascript file), the ViewResolver must return it as a jsp page, otherwise WAS will block it.

In tomcat or other servlet container it will work, but in WebSphere, I can't get it to.

My workaround

create a controller that will stream it back in the HttpServletResponse object

	package org.incompletecode.spring.web.controller;
	import java.io.InputStream;
	import javax.servlet.http.HttpServletResponse;
	import org.springframework.beans.BeansException;
	import org.springframework.context.ApplicationContext;
	import org.springframework.context.ApplicationContextAware;
	import org.springframework.stereotype.Controller;
	import org.springframework.web.bind.annotation.RequestMapping;
	import org.springframework.web.bind.annotation.RequestParam;
	@Controller
	@RequestMapping("/service")
	public class StreamController implements ApplicationContextAware {
	private ApplicationContext applicationContext;
	private String defaultLocation = "WEB-INF/jsp/";
	@RequestMapping("/stream")
	public void stream(@RequestParam("fileName")String fileName,HttpServletResponse response) throws Exception {
	//retrieve the file from the location
	InputStream in = applicationContext.getResource(defaultLocation + fileName).getInputStream();
	//stream it out
	int i = -1;
	while ((i = in.read()) > 0) {
	response.getOutputStream().write(i);
	}//end while
	//flush
	response.getOutputStream().flush();
	//close
	response.getOutputStream().close();//done
	}
	public void setApplicationContext(ApplicationContext applicationContext) throws BeansException {
	this.applicationContext = applicationContext;
	}
	}

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