似乎Content-Length设置不正确（源显示FixedLengthOutputStream.close在大小不匹配时引发IOException ）

It would seem that Content-Length is set incorrectly (the source shows that FixedLengthOutputStream.close throws IOException on a size mismatch)

此外，在您的编辑中，您还显示页面返回'404，表示您未使用 ziplis t.php 。仔细检查您正在使用的网址：）

Also, in your edit you're showing that your page is returning a '404, which indicates that you're not using the correct URL for ziplist.php. Double check the URL you're using :)