1. 新建web project

2. 填 jar，注意新加入两个上传文件的jar， commons-io， commons-fileupload

3. 改写web.xml 

     
       
      	  
          
       
        index.jsp
         
          
        	
       
        springMVC
         	
       
        org.springframework.web.servlet.DispatcherServlet
         	
         		
        
         contextConfigLocation
          		
        
         classpath*:config/spring-servlet.xml
          	
         	
       
        1
         
          
                
       
        characterEncodingFilter
                 
       
        org.springframework.web.filter.CharacterEncodingFilter
                 
                     
        
         encoding
                      
        
         UTF-8
                  
                 
                     
        
         forceEncoding
                      
        
         true
                  
             
            
                
       
        characterEncodingFilter
                 
       
        /*
             
            
        	
       
        springMVC
         	
       
        /
         
        
     

4. 新增config包， 新建spring-servlet.xml

   新增了上传文件需要的bean 

5. 写controller方法， uploadController.java

package com.tgb.web.controller;import java.io.File;import java.io.FileNotFoundException;import java.io.FileOutputStream;import java.io.IOException;import java.io.InputStream;import java.util.Date;import java.util.Iterator;import javax.servlet.http.HttpServletRequest;import javax.servlet.http.HttpServletResponse;import org.springframework.stereotype.Controller;import org.springframework.web.bind.annotation.RequestMapping;import org.springframework.web.bind.annotation.RequestParam;import org.springframework.web.multipart.MultipartFile;import org.springframework.web.multipart.MultipartHttpServletRequest;import org.springframework.web.multipart.commons.CommonsMultipartFile;import org.springframework.web.multipart.commons.CommonsMultipartResolver;@Controller@RequestMapping("/file")public class UploadController {	@RequestMapping("/upload")	public String upload(@RequestParam("file") CommonsMultipartFile file,HttpServletRequest request) throws IOException{		System.out.println("filename--->"+file.getOriginalFilename());		if(!file.isEmpty()){			try {				FileOutputStream os = new FileOutputStream("D:/"+new Date().getTime()+file.getOriginalFilename());				InputStream in =  file.getInputStream();				int b = 0;				while((b=in.read())!=-1){					os.write(b);				}				os.flush();				os.close();				in.close();			} catch (FileNotFoundException e) {				// TODO Auto-generated catch block				e.printStackTrace();			}		}		return "/success"; 	}		@RequestMapping("/upload2")	public String upload2(HttpServletRequest request, HttpServletResponse response) throws IllegalStateException, IOException{		CommonsMultipartResolver multipartResolver = new CommonsMultipartResolver(request.getSession().getServletContext());		if(multipartResolver.isMultipart(request)){			MultipartHttpServletRequest multiRequest = (MultipartHttpServletRequest)request;			Iterator
     
       iter = multiRequest.getFileNames();			if(iter.hasNext()){								MultipartFile file = multiRequest.getFile((String)iter.next());				if(file!=null){					 	String fileName="demoUpload"+file.getOriginalFilename();					    String path = "D:/" + fileName;					    					    File localFile = new File(path);					    					    file.transferTo(localFile);				}			}		}		return "/success"; 	}		@RequestMapping("/toUpload")	public String toUpload(){		return "/upload"; 	}}
     

　　

6. 写jsp文件， upload.jsp 

<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%><%@taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %>               	  
     
       添加用户 
      
	  
     
      	  	选择文件: 
      	  		  	
      	  
     
   		  

还有succuss.jsp

<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%><%@taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %>              	  上传文件成功  

　　

7. 地址栏验证

http://localhost:8080/springMVCUpload/file/toUpload