1、在Tomcat的Webapps目录下建立一个目录

				
				
				
				
				
				
				
				
								    String uid = (String)session.getAttribute("UID");
				    
				    String queryString = request.getQueryString();
				    decodeQueryString.setQueryString(queryString);
				    
				    String filename = decodeQueryString.getQueryStringValue("filename");
				    String content = request.getParameter("content");
				    String title = request.getParameter("title");
				    
				    Comment comment = new Comment();
				    comment.setContent(content);
				    comment.setFileName(filename);
				    comment.setUser(uid);
				
				    commnetAdmin.setRootPath(application.getRealPath("/data/"));
				    if (commnetAdmin.add(comment)) {
				        //添加成功，重新显示留言页面
				        response.sendRedirect("photodetails.jsp?filename="+filename+
				                "&title="+title);
				    } else {
				        out.print("相片评论");
				        out.print("");
				        out.print(" CommentAdmin：添加相片评论				    }
				%>