request请求获取相对路径和绝对路径

在Action中获取路径

HttpServletRequest request= ServletActionContext.getRequest();

1.request.getSession().getServletContext().getRealPath("")

    打印：D:\dsworkspace\.metadata\.plugins\org.eclipse.wst.server.core\tmp1\wtpwebapps\ecp

2.request.getSession().getServletContext().getRealPath("/")

    打印：D:\dsworkspace\.metadata\.plugins\org.eclipse.wst.server.core\tmp1\wtpwebapps\ecp\

3.request.getRequestURI()

    打印：/ecp/bs-ui/ecp/marketingManage.GalleryAction!retrieve.bs

4.request.getContextPath()

   打印：/ecp

5.request.getServletPath()

   打印：/bs-ui/ecp/marketingManage.GalleryAction!retrieve.bs