解决getOutputStream() has already been called for this response

最新推荐文章于 2023-05-23 10:46:27 发布

夏天吹过的风

最新推荐文章于 2023-05-23 10:46:27 发布

阅读量3k

点赞数

CC 4.0 BY-SA版权

分类专栏： Java Web 常识技巧

本文链接：https://blog.youkuaiyun.com/WSKinght/article/details/47004719

常识技巧同时被 2 个专栏收录

45 篇文章

订阅专栏

Java Web

23 篇文章

订阅专栏

本文详细介绍了如何使用Java的HttpServletResponse将本地文件下载到客户端，并通过设置响应头实现正确的文件名显示。

摘要生成于 C知道，由 DeepSeek-R1 满血版支持，前往体验 >

response.setContentType("application/x-download");
response.setHeader("Content-Disposition", "attachment; filename=" + new String(filename.getBytes("utf-8"), "ISO8859-1" ) );
java.io.FileInputStream fis = new java.io.FileInputStream(targetFilePath);
byte[] b = new byte[2048];
int len;
while((len = fis.read(b)) > 0)
{
    response.getOutputStream().write(b, 0, len);
}
fis.close();
response.getOutputStream().close();
out.clear();
out = pageContext.pushBody(); // the two lines can solve the problem of "getOutputStream() has already been called for this response"