对memcache的数据(key-value)进行遍历操作

最新推荐文章于 2019-06-12 19:42:08 发布

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最新推荐文章于 2019-06-12 19:42:08 发布

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分类专栏： No-SQL 文章标签： string command import ruby class java

本文链接：https://blog.youkuaiyun.com/kunshan_shenbin/article/details/7624484

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本文介绍了使用PHP、Java及Ruby等不同编程语言实现Memcached客户端的方法，包括连接配置、获取键值等操作，并提供了具体的代码示例。

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1. PHP实现：

参考资料：http://www.cnblogs.com/sunli/archive/2008/11/01/1324153.html

$port = 11211;
$host = '192.168.11.128';
$mem  = new Memcache();
$mem->connect($host, $port);
$items = $mem->getExtendedStats('items');
$items = $items["$host:$port"]['items'];
foreach($items as $key => $values){
	$number = $key;
	$str = $mem->getExtendedStats ("cachedump",$number,0);
	$line = $str["$host:$port"];
	if(is_array($line) && count($line) > 0){
		foreach($line as $key => $value) {
			echo $key . '=>';
			print_r($mem->get($key));
			echo "\r\n";
		}
	}
}

2. Java实现：

import java.io.IOException;
import java.net.InetAddress;
import java.net.InetSocketAddress;
import java.util.Iterator;
import java.util.Map;
import java.util.Map.Entry;
import java.util.concurrent.TimeoutException;

import net.rubyeye.xmemcached.KeyIterator;
import net.rubyeye.xmemcached.MemcachedClient;
import net.rubyeye.xmemcached.XMemcachedClient;
import net.rubyeye.xmemcached.exception.MemcachedException;

public class XMemcache {

	public static void main(String[] args) throws IOException, TimeoutException, InterruptedException, MemcachedException {

		InetAddress addr = InetAddress.getByName("192.168.11.128");
		InetSocketAddress ia = new InetSocketAddress(addr, 11211);
		MemcachedClient client = new XMemcachedClient(ia);
		
		KeyIterator it = client.getKeyIterator(ia);
		while(it.hasNext()) {
			String key = it.next();
			System.out.println(client.get(key));
		}
		
		client.shutdown();
	}
}

3. Ruby实现：

http://robbin.iteye.com/blog/252345

4. telnet：

http://iamcaihuafeng.blog.sohu.com/159082880.html

特别提醒：http://fnil.net/docs/xmemcached/net/rubyeye/xmemcached/class-use/KeyIterator.html

memcached 1.6.x will remove cachedump stats command,so this method will be removed in the future