spring mvc 文件下载

package com.clj.test.down.util;

import java.io.File;
import java.io.IOException;

import org.apache.commons.io.FileUtils;
import org.springframework.context.annotation.Scope;
import org.springframework.http.HttpHeaders;
import org.springframework.http.HttpStatus;
import org.springframework.http.MediaType;
import org.springframework.http.ResponseEntity;
import org.springframework.stereotype.Component;
import org.springframework.web.bind.annotation.RequestMapping;

/**
* <一句话功能简述>
* <功能详细描述>
*
* @author Administrator
* @version [版本号, 2014年3月7日]
* @see [相关类/方法]
* @since [产品/模块版本]
*/
@Component
@Scope("prototype")
@RequestMapping("/downloadFile")
public class DownloadAction
{

@RequestMapping("download")
public ResponseEntity<byte[]> download() throws IOException {
String path="D:\workspace\.metadata\.plugins\org.eclipse.wst.server.core\tmp0\wtpwebapps\springMVC\WEB-INF\upload\图片10（定价后）.xlsx";
File file=new File(path);
HttpHeaders headers = new HttpHeaders();
String fileName=new String("你好.xlsx".getBytes("UTF-8"),"iso-8859-1");//为了解决中文名称乱码问题
headers.setContentDispositionFormData("attachment", fileName);
headers.setContentType(MediaType.APPLICATION_OCTET_STREAM);
return new ResponseEntity<byte[]>(FileUtils.readFileToByteArray(file),
headers, HttpStatus.CREATED);
}
}