SpringMVC+servlet3.0文件上传的配置和实现代码

 
 
 myWeb 
 org.springframework.web.servlet.DispatcherServlet 
  
  contextConfigLocation 
  classpath:springmvc/servlet.xml 
  
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 myWeb 
 / 
 

package com.xjj.web.controller; 
 
import java.io.File; 
import java.io.IOException; 
import java.util.Map; 
 
import javax.servlet.ServletException; 
import javax.servlet.http.HttpServletRequest; 
import javax.servlet.http.HttpServletResponse; 
import javax.servlet.http.Part; 
 
import org.springframework.stereotype.Controller; 
import org.springframework.util.StringUtils; 
import org.springframework.web.bind.annotation.RequestMapping; 
import org.springframework.web.bind.annotation.RequestParam; 
import org.springframework.web.bind.annotation.ResponseBody; 
 
import com.xjj.json.JsonResult; 
 
/** 
 * 文件上传 
 * @author XuJijun 
 * 
 */ 
@Controller 
@RequestMapping("/servlet/file") 
public class FileUploadController { 
  
 /** 
  * 保存文件的目录，放在web目录、或一个指定的绝对目录下 
  */ 
  private static final String SAVE_DIR = "uploadFiles"; 
  
 @RequestMapping("/upload") 
 public @ResponseBody JsonResult upload(HttpServletRequest request, HttpServletResponse response, @RequestParam Map p) 
   throws ServletException, IOException { 
 
  // 获取 web application的绝对路径 
  String appPath = request.getServletContext().getRealPath(""); 
   
  // 构造文件存放的路径 
  String savePath = appPath + File.separator + SAVE_DIR; 
 
  // 如果文件存放路径不存在，则mkdir一个 
  File fileSaveDir = new File(savePath); 
  if (!fileSaveDir.exists()) { 
   fileSaveDir.mkdir(); 
  } 
 
  for (Part part : request.getParts()) { 
   String fileName = extractFileName(part); 
   if(!StringUtils.isEmpty(fileName)){ 
    part.write(savePath + File.separator + fileName); 
   } 
  } 
 
  return new JsonResult("200", "文件上传成功！", savePath); 
 } 
  
 /** 
  * 从content-disposition头中获取源文件名 
  * 
  * content-disposition头的格式如下： 
  * form-data; name="dataFile"; filename="PHOTO.JPG" 
  * 
  * @param part 
  * @return 
  */ 
 private String extractFileName(Part part) { 
  String cOntentDisp= part.getHeader("content-disposition"); 
  String[] items = contentDisp.split(";"); 
  for (String s : items) { 
   if (s.trim().startsWith("filename")) { 
    return s.substring(s.indexOf("=") + 2, s.length()-1); 
   } 
  } 
  return ""; 
 } 
 
} 

 
 
 
  
  
  
 
 
 
File Upload
 
  
  
 
  选择要上传的文件：