fileupload.java

用spring做的一个拥有添加

package com.mvc.Beans;

import java.io.*;
import java.text.SimpleDateFormat;
import java.util.Date;

import javax.servlet.http.*;

import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.springframework.util.FileCopyUtils;
import org.springframework.validation.*;
import org.springframework.web.bind.*;
import org.springframework.web.multipart.MultipartHttpServletRequest;
import org.springframework.web.multipart.commons.CommonsMultipartFile;
import org.springframework.web.multipart.support.ByteArrayMultipartFileEditor;
import org.springframework.web.servlet.*;
import org.springframework.web.servlet.mvc.*;

import com.mvc.form.*;

public class fileUpload extends SimpleFormController{
	
	public Log log=LogFactory.getLog(fileUpload.class);
	
	public String storepath;    //上传文件路径
	
	public String getStorepath() {
		return storepath;
	}

	public void setStorepath(String storepath) {
		this.storepath = storepath;
	}
	
	public fileUpload(){           //构造函数
		setCommandClass(uploadForm.class);
	}
	
	@Override
	protected ModelAndView onSubmit(HttpServletRequest request,
			HttpServletResponse response, Object command, BindException errors)
			throws Exception {
		// TODO Auto-generated method stub
		
		//uploadForm upload=(uploadForm) command;
		//byte[] uploadfile=upload.getFile();
		
		MultipartHttpServletRequest multipart=(MultipartHttpServletRequest)request;
		CommonsMultipartFile file=(CommonsMultipartFile)multipart.getFile("file");
		
		String storepath=this.storepath;
		
		File path=new File(storepath);
		if(!path.exists()){
			path.mkdirs();
		}
		String oldfile=new String(file.getOriginalFilename().getBytes("GBK"),"UTF-8");
		int pos=oldfile.lastIndexOf(".");          //获取文件后缀名
		String ext=oldfile.substring(pos,oldfile.length());
		Date dt=new Date(System.currentTimeMillis());      //获取上传文件时间
		SimpleDateFormat fmt=new SimpleDateFormat("yyyyMMddHHmmssSSS");
		String newfile=fmt.format(dt)+ext;
		
		if(log.isDebugEnabled()){
			log.debug("uploading file to: "+storepath+System.getProperty("file.separator")+newfile);
		}
		
		File uploadpath=new File(storepath+System.getProperty("file.separator")+newfile);
		BufferedOutputStream buffer=new BufferedOutputStream(new FileOutputStream(uploadpath));
		FileCopyUtils.copy(file.getInputStream(), buffer);
		System.out.println("************");
		System.out.println(uploadpath.getAbsolutePath());
		//System.out.println(uploadfile.length);
		System.out.println("************");
		
		return new ModelAndView(getSuccessView());
	}

	@Override
	protected void initBinder(HttpServletRequest request,
			ServletRequestDataBinder binder) throws Exception {
		// TODO Auto-generated method stub
		
		super.initBinder(request, binder);
		binder.registerCustomEditor(byte[].class,new ByteArrayMultipartFileEditor());
	}

	
}