1.springMVC实现多文件上传需要的包如图2.webroot下的结构如图所示

3.java代码：

1 package cn.lxc.controller; 2  3 import java.io.File; 4 import java.io.FileOutputStream; 5 import java.io.IOException; 6 import java.io.InputStream; 7 import java.io.OutputStream; 8  9 import javax.servlet.http.HttpServletRequest;10 11 import org.springframework.stereotype.Controller;12 import org.springframework.web.bind.annotation.RequestMapping;13 import org.springframework.web.bind.annotation.RequestParam;14 import org.springframework.web.multipart.commons.CommonsMultipartFile;15 16 @Controller17 public class UploadController {18     @RequestMapping("/upload.do")19     public String upload(@RequestParam("file") CommonsMultipartFile file,HttpServletRequest req){20         String path= req.getSession().getServletContext().getRealPath("/");21         System.out.println(path);22         String fileName=file.getOriginalFilename();23         try {24             InputStream is = file.getInputStream();25             OutputStream os = new FileOutputStream(new File(path,fileName));26             int len=0;27             byte[] buffer = new byte[400];28             while((len=is.read(buffer))!=-1){ //len为读取数据的字节长度29                 os.write(buffer, 0, len); //三个参数分别为输出的字节数组、数据起始偏移量，输出字节长度30             }31             os.close();32             is.close();33         34         } catch (IOException e) {35             e.printStackTrace();36         }37         return "redirect:/index.jsp";38     }39 }

4.jsp代码 

1 <%@ page language="java" import="java.util.*" pageEncoding="utf-8"%> 2 <% 3 String path = request.getContextPath(); 4 String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/"; 5 %> 6  7  8  9   10     11     12   13   14    
     
      15    file1:
      16          
       17    
     
18   19 

5.springmvc-servlet.xml配置

1 
      2 
     
      11     
      12     
       13     
      14     
      
       16         
       17         
       18         
       19     
      20     
      21     
      
         23         
          24         
         25         
         26     
      27     
      28     
        29 
     

6.web.xml配置

1 
      2 
     
       3   
      
        4     
       
        springmvc
        5     
       
        org.springframework.web.servlet.DispatcherServlet
        6     
       
        1
        7   
       8   
      
        9     
       
        springmvc
       10     
       
        *.do
       11   
      12