如果web项目下有upload这个文件夹
在web.xml设置
upload folder
upload
在servlet中通过下面语句可以得到upload文件夹的路径
public void doGet(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
ServletContext context=getServletConfig().getServletContext();//获取上下文
String uploadpath=context.getInitParameter("upload folder");//获取参数
String path=context.getRealPath(uploadpath);//得到文件夹upload的实际路径(例如E:\Soft\tomcat\tomcat6\webapps\atest\upload)atest为项目名称
response.setContentType("text/html"); PrintWriter out = response.getWriter(); out.println(""-//W3C//DTD HTML 4.01 Transitional//EN\">"); out.println(""); out.println("
A Servlet"); out.println(" "); out.print("uploadpath : "); out.print(path); out.println(", using the GET method"); out.println(" "); out.println(""); out.flush(); out.close(); }