用火车头采集，测试的时候成功了，然后开始采集，说发布失败，看数据：
ID:1
网址:http://“我采集的网页”
Header:HTTP/1.1 404 Not Found
Date:Sat, 11 Apr 2020 05:06:38 GMT
Server:Apache
Content-Length:259
Connection:close
Content-Type:text/html; charset=iso-8859-1
源代码:<!DOCTYPE HTML PUBLIC "-//IETF//DTD HTML 2.0//EN">
<html><head>
<title>404 Not Found</title>
</head><body>
<h1>Not Found</h1>
<p>The requested URL was not found on this server.</p>
<hr>
<address>Apache Server at 我的网站 Port 80</address>
</body></html>
返回404是什么原因，目标防采集吗？
