Spring4 MVC 多文件上传

核心代码：

`
package controller;

import java.io.File;
import java.io.IOException;
import java.io.InputStream;
import java.text.SimpleDateFormat;
import java.util.Date;
import java.util.Iterator;
import java.util.Map;

import org.apache.commons.io.FileUtils;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.multipart.MultipartFile;
import org.springframework.web.multipart.MultipartHttpServletRequest;

@Controller
public class UserinfoController {
@RequestMapping(value = "upload")
public String loginMethod(MultipartHttpServletRequest request) throws IOException {

    String username = request.getParameter("username");
    System.out.println("username=" + username);

    SimpleDateFormat format = new SimpleDateFormat("yyyy-MM-dd");
    String uploadPath = request.getSession().getServletContext().getRealPath("/upload");

    Map fileMap = request.getFileMap();
    Iterator iterator = fileMap.keySet().iterator();
    while (iterator.hasNext()) {
        String eachInputName = iterator.next();
        MultipartFile eachFile = fileMap.get(eachInputName);

        String eachFileName = eachFile.getOriginalFilename();
        InputStream eachFileStream = eachFile.getInputStream();

        String dateString = format.format(new Date());
        dateString = dateString + "_" + System.currentTimeMillis() + "_" + eachFileName;

        File destination = new File(uploadPath, dateString);
        FileUtils.copyInputStreamToFile(eachFileStream, destination);

    }

    return "index.jsp";
   }
}
`

index.jsp

 `<%@ page language="java" import="java.util.*" pageEncoding="utf-8"%>
<%@ taglib uri="http://java.sun.com/jsp/jstl/core" prefix="c"%>






    username:
 
    file1:

    file2:

    file3:

    file4:

    file5:

     

        

`

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