servlet中獲得專案絕對路徑
String filePath=this.getServletConfig().getServletContext().getRealPath("/"); 根目錄所對應的絕對路徑:request.getServletPath(); 檔案的絕對路徑 :request.getSession().getServletContext().getRealPath(request.getRequestURI()) 當前web應用的絕對路徑 :servletConfig.getServletContext().getRealPath("/"); ServletContext物件獲得幾種方式： Javax.servlet.http.HttpSession.getServletContext() Javax.servlet.jsp.PageContext.getServletContext() Javax.servlet.ServletConfig.getServletContext() 檔案的絕對路徑 :request.getSession().getServletContext().getRealPath(request.getRequestURI()) 當前web應用的絕對路徑 :servletConfig.getServletContext().getRealPath("/");