Spring MVC 文件上传下载 后端 - Java.zip

本文基于 Spring MVC 注解，让 Spring 跑起来。

(1) 导入 jar 包：ant.jar、commons-fileupload.jar、connom-io.jar。

(2) 在 src/context/dispatcher.xml 中添加

[java] view plaincopy

<bean id="multipartResolver"

class="org.springframework.web.multipart.commons.CommonsMultipartResolver"

p:defaultEncoding="UTF-8" />

注意，需要在头部添加内容，添加后如下所示：

[java] view plaincopy

xsi:schemaLocation="

http://www.springframework.org/schema/beans

http://www.springframework.org/schema/beans/spring-beans-3.0.xsd

http://www.springframework.org/schema/mvc

http://www.springframework.org/schema/mvc/spring-mvc-3.0.xsd

http://www.springframework.org/schema/context

http://www.springframework.org/schema/context/spring-context-3.0.xsd">

(3) 添加工具类 FileOperateUtil.java

[java] view plaincopy

/**

import java.io.BufferedInputStream;

import java.io.BufferedOutputStream;

import java.io.File;

import java.io.FileInputStream;

import java.io.FileOutputStream;

import java.text.SimpleDateFormat;

import java.util.ArrayList;

import java.util.Date;

import java.util.HashMap;

import java.util.Iterator;

import javax.servlet.http.HttpServletResponse;

import org.apache.tools.zip.ZipEntry;

import org.apache.tools.zip.ZipOutputStream;

import org.springframework.web.multipart.MultipartHttpServletRequest;

* @date 2012-5-5 下午 12:05:57

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 = "uploadDir/";

/**

* 将上传的文件进行重命名

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("."));

}

/**

* 压缩后的文件名

*

* @author geloin

* @date 2012-3-29 下午 6:21:32

* @return

prefix = name;

}

return prefix + ".zip";

}

/**

* 上传文件

*

* @author geloin

* @date 2012-5-5 下午 12:25:47

* @param request

* @return

String[] params, Map<String, Object[]> values) throws Exception {

List<Map<String, Object>> result = new ArrayList<Map<String, Object>>();

MultipartHttpServletRequest mRequest = (MultipartHttpServletRequest) request;

Map<String, MultipartFile> fileMap = mRequest.getFileMap();

String uploadDir = request.getSession().getServletContext()

.getRealPath("/")

+ FileOperateUtil.UPLOADDIR;