java实现文件下载功能代码
package com.fh.util;import java.io.BufferedOutputStream;
import java.io.OutputStream;
import java.net.URLEncoder;
import javax.servlet.http.HttpServletResponse;
/**
* 下载文件
*创建时间：2014年12月23日
* @version
*/
public class FileDownload {
/**
* @param response
* @param filePath //文件完整路径(包括文件名和扩展名)
* @param fileName //下载后看到的文件名
* @return文件名
*/
public static void fileDownload(final HttpServletResponse response, String filePath, String fileName) throws Exception{
byte[] data = FileUtil.toByteArray3(filePath);
fileName = URLEncoder.encode(fileName, "UTF-8");
response.reset();
response.setHeader("Content-Disposition", "attachment; filename=\"" + fileName + "\"");
response.addHeader("Content-Length", "" + data.length);
response.setContentType("application/octet-stream;charset=UTF-8");
OutputStream outputStream = new BufferedOutputStream(response.getOutputStream());
outputStream.write(data);
outputStream.flush();
outputStream.close();
}
}
页:
[1]