06springmvc文件上传.txt

springmvc 4.3.9 还支持servlet3 文件上传
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单文件上传
	
 

  
	    作者：
  
  

	    文件：
  
  

	    
  
	
 

	@WebServlet("/upload.do") @MultipartConfig
	public class Upload extends HttpServlet{
	    @Override
	    protected void service(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
		req.setCharacterEncoding("utf-8");
		String n = req.getParameter("author");
		System.out.println(n);

		Part pf = req.getPart("ufile");
		String nnnn = pf.getSubmittedFileName();
		System.out.println(nnnn);


		String path = getServletContext().getRealPath("/upload/");
		System.out.println(path);
		File f = new File(path);
		if(!f.exists()){
		    f.mkdirs();
		}
		pf.write(path+nnnn);
	    }
	}

spring mvc 文件 上传
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1、项目pom.xml 文件加入依赖
	
 
        
 
            
  
   commons-fileupload
  
            
  
   commons-fileupload
  
            
  
   1.3.2
  
        
 
	会自动引入如下两个包 
	commons-fileupload.jar
	commons-io.jar 

2、打开src/main/resources/mvc.xml springmvc核心配置文件
    
 
    
 
        
  
        
  
        
  
        
  
    
 

3、表单文件
	
单文件上传
	
 

  
	    作者：
  
  

	    文件：
  
  

	    
  
	
 

4、controller控制器  up.action 编写如下
	控制器方法参数注解如下
		此处ufile就是表单文件名称  

		@RequestParam("ufile") CommonsMultipartFile f,

	package com.fz.controller;
	import org.springframework.stereotype.Controller;
	import org.springframework.web.bind.annotation.RequestMapping;
	import org.springframework.web.bind.annotation.RequestParam;
	import org.springframework.web.multipart.commons.CommonsMultipartFile;
	import javax.servlet.http.HttpServletRequest;
	import javax.servlet.http.HttpServletResponse;
	import java.io.File;
	import java.io.IOException;
	/**
	 * Created by webrx on 2017-06-28.
	 */
	@Controller
	public class UploadFile {
	    @RequestMapping("/up.action")
	    public void upload(@RequestParam("ufile") CommonsMultipartFile f, HttpServletResponse resp, HttpServletRequest req) throws IOException {
		String path = req.getServletContext().getRealPath("/upload/user/");  //项目根  /upload/user/ 此目录下
		System.out.println(path);
		File pa = new File(path);
		if(!pa.exists()){
		    pa.mkdirs();
		}

		System.out.println(f.getBytes());
		System.out.println(f.getContentType());
		System.out.println(f.getName());//取得表单名称
		System.out.println(f.getSize()); //文件大小
		System.out.println(f.getOriginalFilename());//上传的原始文件名
	    }
	}

5、springmvc 多文件上传及表单内容接收
        
 
        
 
            
  
   commons-fileupload
  
            
  
   commons-fileupload
  
            
  
   1.3.2
  
        
 
	会自动引入如下两个包 
	commons-fileupload.jar
	commons-io.jar 

	src/main/resources/mvc.xml springmvc 框架核心配置文件加入bean配置
	    
 
	    
 
		
  
		
  
		
  
		
  
	    
 


	
SpringMVC 多文件上传
	
 

  
	    作者：
  
  

	    文件：
  
  

	    
  
	
 

	    //@RequestMapping("/ups.action") @ResponseBody
	    //public void uploads(@RequestParam("face") CommonsMultipartFile fs[],HttpServletRequest req) throws IOException {
	    @RequestMapping("/ups.action")
	    public ModelAndView uploads(@RequestParam("face") List
 
   fs, HttpServletRequest req) throws IOException {
		String path = req.getServletContext().getRealPath("/upload/booktxt/");
		System.out.println(path);
		File pa = new File(path);
		if(!pa.exists()){
		    pa.mkdirs();
		}

		//System.out.println(fs.length);
		System.out.println(fs.size());
		ModelAndView m = new ModelAndView("ok");
		List
  
    info = new ArrayList
   
    (); for(CommonsMultipartFile cmf : fs){ System.out.println(cmf.getOriginalFilename()); System.out.println(cmf.getSize()); cmf.transferTo(new File(path,cmf.getOriginalFilename())); info.add(String.format("文件名：%s，大小写：%d字节",cmf.getOriginalFilename(),cmf.getSize())); } m.addObject("fs",info); return m; } springmvc 多文件，单文件，上传时可以使用 req直接接表单字符串值 //@RequestMapping("/ups.action") @ResponseBody //public void uploads(@RequestParam("face") CommonsMultipartFile fs[],HttpServletRequest req) throws IOException { @RequestMapping("/ups.action") public ModelAndView uploads(@RequestParam("face") List
    
      fs, HttpServletRequest req) throws IOException { String path = req.getServletContext().getRealPath("/upload/booktxt/"); System.out.println(path); File pa = new File(path); if(!pa.exists()){ pa.mkdirs(); } //System.out.println(fs.length); System.out.println(fs.size()); ModelAndView m = new ModelAndView("ok"); List
     
       info = new ArrayList
      
       (); for(CommonsMultipartFile cmf : fs){ System.out.println(cmf.getOriginalFilename()); System.out.println(cmf.getSize()); cmf.transferTo(new File(path,cmf.getOriginalFilename())); info.add(String.format("文件名：%s，大小写：%d字节",cmf.getOriginalFilename(),cmf.getSize())); } m.addObject("fs",info); //接表单值  req.setAttribute("author",xxx); m.addObject("author",req.getParameter("author")); return m; } 如何解决接到的数据中文乱码 //判断该文件是否为普通表单 if (item.isFormField()) { String name = item.getFieldName(); String value = null; try { value = item.getString("utf8"); } catch (UnsupportedEncodingException e) { e.printStackTrace(); } //获取表单内容 if (name.equalsIgnoreCase("teacherName")) { ClassroomUploadVo.setTeacherName(value); }