关于Servlet开发中的目录

最近再用Servlet，但是被各种目录搞得七荤八素，然后用下面的代码理顺了：）

public static void show(HttpServlet servlet,HttpServletRequest request, HttpServletResponse response)
			throws ServletException, IOException
	{
		System.out.println("*************** REQUEST PATH");
		System.out.println("*************** request.getContextPath(): " + request.getContextPath());
		//System.out.println("*************** request.getRealPath(\"/\"): "+request.getRealPath("/"));//这个目前已经画删除线了
		System.out.println("*************** servlet.getServletContext().getRealPath(\"/\"): "+servlet.getServletContext().getRealPath("/"));
		System.out.println("*************** servlet.getServletContext().getRealPath(\"/WEB-INF\"): "+servlet.getServletContext().getRealPath("/WEB-INF"));
		System.out.println("*************** servlet.getServletContext().getRealPath(\"/WEB-INF/pic\"): "+servlet.getServletContext().getRealPath("/WEB-INF/pic"));
		System.out.println("*************** request.getPathInfo(): " + request.getPathInfo());
		System.out.println("*************** request.getServletPath(): " + request.getServletPath());
		System.out.println("*************** request.getRequestURI(): " + request.getRequestURI());
		System.out.println("*************** request.getRequestURL(): " + request.getRequestURL());
		System.out.println("*************** System.getProperty(\"java.io.tmpdir\"): "+System.getProperty("java.io.tmpdir"));
		System.out.println("*************** File.separator: "+File.separator);
	}

相信看完就全明白了。