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qq_35472674 2017-08-30
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这是解决了，谢谢
孟子E章 2017-03-19
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你打印一下
path和
path+"\\"+fname
文件夹存在吗？文件名符合规范吗
qq_35472674 2017-03-19
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java文件servlet
package filUplod;
import java.io.File;
import java.io.IOException;
import javax.servlet.RequestDispatcher;
import javax.servlet.ServletException;
import javax.servlet.annotation.MultipartConfig;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.Part;
@WebServlet(name="FlieServletServlet",urlPatterns={"/fileUplod.do"})
@MultipartConfig(location="N:\\",fileSizeThreshold = 1024)
public class FileUplodServlet extends HttpServlet{
public void doPost(HttpServletRequest request,
HttpServletResponse response)
throws ServletException,IOException{
String path =this.getServletContext().getRealPath("/");
String mnumber =request.getParameter("mnumber");
Part p =request.getPart("fileName");
String message=" ";
if(p.getSize()>1024*1024){
p.delete();
message="文件太大，不能上传";
}
else{
path= path+"\\member\\"+ mnumber;
File f= new File(path);
if(!f.exists()){
f.mkdirs();
}
String h =p.getHeader("content-disposition");
String fname = h.substring(h.lastIndexOf("\\")+1,h.length()-1);
p.write(path+"\\"+fname);
message="文件上传成功";
}
request.setAttribute("message", message);
RequestDispatcher rd = request.getRequestDispatcher("/fileUplod.jsp") ;
rd.forward(request, response);
}
}
qq_35472674 2017-03-19
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jsp文件
<%@ page contentType="text/html; charset=utf-8 " pageEncoding="utf-8"%>
<!DOCTYPE html>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
<title>上传图片</title>
</head>
<body>
<form action="fileUplod.do" method="post" enctype="multipart/form-data">
会员名： <input type="text" name="mnumber" size="30" /> <br>
文件名：<input type="file" name="fileName" size="30"/> <br>
<input type="submit" value="Submit" />
<input type="reset" value="reset" />
</form>
</body>
</html>
