如何从Java进行HTTP清除?
发布时间:2020-12-14 06:01:04 所属栏目:Java 来源:网络整理
导读:我正在尝试使用HttpUrlConnection执行PURGE,如下所示: private void callVarnish(URL url) { HttpURLConnection conn = null; try { conn = (HttpURLConnection) url.openConnection(); conn.setRequestMethod(PURGE_METHOD); conn.setDoOutput(true); conn
我正在尝试使用HttpUrlConnection执行PURGE,如下所示:
private void callVarnish(URL url) { HttpURLConnection conn = null; try { conn = (HttpURLConnection) url.openConnection(); conn.setRequestMethod(PURGE_METHOD); conn.setDoOutput(true); conn.setInstanceFollowRedirects(true); conn.setRequestProperty("Host","www.somehost.com"); conn.connect(); System.out.print(conn.getResponseCode() + " " + conn.getResponseMessage()); } catch (Exception e) { log.error("Could not call varnish: " + e); } finally { if (conn != null) { conn.disconnect(); } } } 但是我得到了: 08:56:31,813 ERROR [VarnishHandler] Could not call varnish: java.net.ProtocolException: Invalid HTTP method: PURGE 卷曲没有问题: curl -I -X PURGE -H“主持人:www.somehost.com”someurl HTTP/1.1 404 Not in cache. Server: Varnish Content-Type: text/html; charset=utf-8 Retry-After: 5 Content-Length: 401 Accept-Ranges: bytes Date: Thu,18 Oct 2012 06:40:19 GMT X-Varnish: 1611365598 Age: 0 Via: 1.1 varnish Connection: close X-Cache: MISS 那我该怎么做?我是否需要从Java卷曲或是否有其他我可以使用的库? 解决方法
您可以使用Apache的HttpClient库:
http://hc.apache.org/httpcomponents-client-ga/
您可以使用BasicHttpRequest或实现自己的扩展HttpRequestBase的HttpPurge类. 你可以在这里找到一个快速入门指南:http://hc.apache.org/httpcomponents-client-ga/quickstart.html 例: DefaultHttpClient httpclient = new DefaultHttpClient(); BasicHttpRequest httpPurge = new BasicHttpRequest("PURGE","www.somehost.com") HttpResponse response = httpclient.execute(httpPurge); (编辑:李大同) 【声明】本站内容均来自网络,其相关言论仅代表作者个人观点,不代表本站立场。若无意侵犯到您的权利,请及时与联系站长删除相关内容! |