springMVC 文件下载

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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);
    }
}

在浏览器里面写一句，便可以下载文件

 

<a href="./downloadFile/download" >下载a>

 

springMVC具体怎么配置，请参看：

http://blog.csdn.net/clj198606061111/article/details/20492887

 

本文来源于：http://blog.csdn.net/clj198606061111/article/details/20743769