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FileDownload.java
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FileDownload.java
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import javax.servlet.http.HttpServletResponse;
import java.io.BufferedOutputStream;
import java.io.IOException;
import java.io.OutputStream;
import java.net.URLEncoder;
/**
* DateTime: 2016/9/18 21:01
* 功能:下载文件
* 思路:
*/
public class FileDownload {
//测试
public static void main(String[] args) {
}
/**
* 下载文件
* @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
*/
public static void fileDownload(final HttpServletResponse response, String filePath, String fileName) throws IOException {
byte[] data=FileUtil.toByteArray2(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();
response.flushBuffer();
}
}