Java上clear Squid缓存
实现原理：构造TCP请求，调用Squid自带的Purge.
前提条件：
Squid需要配置支持purge
private void purge(String ip, int port, String uri) throws IOException {
Socket sk = null;
OutputStream os = null;
try {
String msg = "PURGE " + uri + " HTTP/1.1\r\nAccept: */*\r\n\r\n";
sk = new Socket(ip, port);
os = sk.getOutputStream();
os.write(msg.getBytes("UTF-8"));
os.flush();
} catch (UnknownHostException e) {
logger.error("Resource purge error, " + ip + ":" + port + "is a unknown host!", e);
} finally {
if(os != null) {
os.close();
}
if(sk != null) {
sk.close();
}
}
}
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