javaweb关于文件上传2

<form action="register.do"  enctype="multipart/form-data"  method="post">
		<p>真实姓名：</p>
		<input type="text" name="question1" size="30"><br>
		
		<p>出生年月：</p>
		<input type="text" name="question2" size="30"><br>
		
		<p>地址：</p>
		<input type="text" name="question3" size="30"><br>
		
		<p>民族：</p>
		<p><select name="question4">
		<option value="汉族">汉族</option>
		<option value="回族">回族</option>
		<option value="布依族">布依族</option>
		<option value="壮族">壮族</option>
		</select>
		</p>
		
		<p>兴趣爱好：</p>
		<input type="checkbox" name="question5" value="看书">看书
		<input type="checkbox" name="question5" value="运动">运动
		<input type="checkbox" name="question5" value="乒乓球">乒乓球
		<input type="checkbox" name="question5" value="篮球">篮球
		<input type="checkbox" name="question5" value="跑步">跑步
		<input type="checkbox" name="question5" value="听歌">听歌
		<input type="checkbox" name="question5" value="泡吧">泡吧
		<input type="checkbox" name="question5" value="约会">约会<br>

		<p>头像：</p>
		<input type="file" name="filename" size="30"><br>			
		<br><br>	
		
		<!-- 上传多个文件的代码 -->
		<!-- 
			<p>文件：</p>
			<input type="file" multiple name="filename1" size="30"><br>
			<br><br>
		 -->	
		
		<input type="submit" value="确认">
		       
		<input type="reset" value="取消">

</form>

@WebServlet(name="Register",urlPatterns={"/register.do"})
//设置文件存储的路径
@MultipartConfig(location="D:\\",fileSizeThreshold=1024)
public class Register extends HttpServlet {
	private static final long serialVersionUID = 1L;
	private static final Object[] OK = null;
	
	//定义提示信息
	String show  = "";

	protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
		
		//新建一个result是为了记录图片的URL
		String result = null;		
		
		request.setCharacterEncoding("UTF-8");
		response.setContentType("text/html;charset=UTF-8");
		//创建输出流准备写入数据
		PrintWriter out = response.getWriter();
		
		//显示页面servlet中的一个基础
		out.println("<html><body><div style=\"width:300px;margin:0 auto;\">");
		
		//获取register界面的注册信息然后显示给用户
		String quest1 = request.getParameter("question1");
		String quest2 = request.getParameter("question2");
		String quest3 = request.getParameter("question3");
		String quest4 = request.getParameter("question4");
		String quest5[] = request.getParameterValues("question5");	
		
		//显示注册信息		
		out.println("<h2 style=\"color:red;\">你的注册信息为：</h2>");

		//——————头像代码开始——————//
			String fname="";
			String path = this.getServletContext().getRealPath("/");//获得根目录
			
			Part filename = request.getPart("filename");//获得文件名
			
//			//判断是否选择了头像
//			if(filename.toString()==null){
//				show = "请选择头像！谢谢";
//				request.setAttribute("show", show);
//				RequestDispatcher rd = request.getRequestDispatcher("register.jsp");
//				rd.forward(request, response);
//			}
			
			if(filename.getSize()>1024*1024){
				filename.delete();
				out.println("文件太大，不能上传！");
			}else{
				path=path+"image\\";//存放图片的路径
				
				File f=new File(path);
				if(!f.exists()){
					f.mkdirs();
				}
				
				String h=filename.getHeader("content-disposition");
				fname=h.substring(h.lastIndexOf("filename")+10,h.length()-1);//得到文件名
				
				filename.write(path+fname);
				
				result= path+fname;//获得当前上传文件的路径
				
				out.println("头像上传成功！"+"<br><br>");
				out.println("头像路径为：<br>"+"<div style=\" word-wrap: break-word; word-break: normal; \">"+result+"</div><br>");
			}
				
			//接下来是显示头像的代码
			out.println("头像为："+"<br><br>");	
		
			//显示图片
			out.println("<img src='image\\"+fname+"' width=300px height=200px/>");		
			//——————头像代码结束——————//
			
			out.println("<br><br>");
			
			//——————显示信息开始——————//
			if(!quest1.equals("")){
			out.println("真实姓名为：" + quest1);
			out.println("<br>");
		}
		else{
			show = "请填写姓名！谢谢";
			request.setAttribute("show", show);
			RequestDispatcher rd = request.getRequestDispatcher("register.jsp");
			rd.forward(request, response);
		}
			
		if(!quest2.equals("")){
			out.println("出生年月为：" + quest2);
			out.println("<br>");
		}			
		else{
			show = "请填写出生年月！谢谢";
			request.setAttribute("show", show);
			RequestDispatcher rd = request.getRequestDispatcher("register.jsp");
			rd.forward(request, response);
		}
			
		if(!quest3.equals("")){
			out.println("地址为：" + quest3);
			out.println("<br>");
		}			
		else{
			show = "请填写地址！谢谢";
			request.setAttribute("show", show);
			RequestDispatcher rd = request.getRequestDispatcher("register.jsp");
			rd.forward(request, response);
		}
		
		if(!quest4.equals("")){
			out.println("民族为："+quest4);
			out.println("<br>");
		}
		
		if(quest5!=null){
			out.println("兴趣爱好为：");
			for(int i=0;i<8;i++)
				out.println(quest5[i]);	
			out.println("<br>");		
		}
		else{
			show = "请填写完成所有信息！谢谢";
			request.setAttribute("show", show);
			RequestDispatcher rd = request.getRequestDispatcher("register.jsp");
			rd.forward(request, response);
		}		
		//——————显示信息结束——————//
		
		//显示页面结束
		out.println("</div></body></html>");
	}
}

javaweb关于文件上传2

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