src/com/inloam/common/FileOperateUtil.java

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/** 
 * 
 * @author geloin 
 * @date 2012-5-5 下午12:05:57 
 */
package com.inloam.common;

import java.io.BufferedInputStream;
import java.io.BufferedOutputStream;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.OutputStream;
import java.net.URLEncoder;
import java.text.SimpleDateFormat;
import java.util.ArrayList;
import java.util.Date;
import java.util.HashMap;
import java.util.Iterator;
import java.util.List;
import java.util.Map;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import org.apache.tools.zip.ZipEntry;
import org.apache.tools.zip.ZipOutputStream;
import org.springframework.util.FileCopyUtils;
import org.springframework.web.multipart.MultipartFile;
import org.springframework.web.multipart.MultipartHttpServletRequest;

/**
 * 
 */
public class FileOperateUtil {
	private static final String REALNAME = "realName";
	private static final String STORENAME = "storeName";
	private static final String SIZE = "size";
	private static final String SUFFIX = "suffix";
	private static final String CONTENTTYPE = "contentType";
	private static final String CREATETIME = "createTime";
	private static final String UPLOADDIR = "slide/";

	/**
	 * 将上传的文件进行重命名
	 * 
	 * @param name
	 * @return
	 */
	private static String rename(String name) {

		Long now = Long.parseLong(new SimpleDateFormat("yyyyMMddHHmmss")
				.format(new Date()));
		Long random = (long) (Math.random() * now);
		String fileName = now + "" + random;

		if (name.indexOf(".") != -1) {
			fileName += name.substring(name.lastIndexOf("."));
		}