Memcached 简明教程
Memcached - Delete data
Memcached delete 命令用于从 Memcached 服务器中删除现有密钥。
Syntax
Memcached delete 命令的基本语法如下所示：
delete key如果成功删除该密钥，则它将返回 DELETED。如果未找到该密钥，则它将返回 NOT_FOUND，否则将返回 ERROR。
Example
在此示例中，我们使用 tutorialspoint 作为密钥，并将 memcached 存储在其中，其到期时间为 900 秒。此后，它将删除存储的密钥。
set tutorialspoint 0 900 9
memcached
STORED
get tutorialspoint
VALUE tutorialspoint 0 9
memcached
END
delete tutorialspoint
DELETED
get tutorialspoint
END
delete tutorialspoint
NOT_FOUNDDelete Data Using Java Application
若要从 Memcached 服务器删除数据，您需要使用 Memcached delete 方法。
Example
import net.spy.memcached.MemcachedClient;
public class MemcachedJava {
public static void main(String[] args) {
// Connecting to Memcached server on localhost
MemcachedClient mcc = new MemcachedClient(new
InetSocketAddress("127.0.0.1", 11211));
System.out.println("Connection to server successful");
System.out.println("set status:"+mcc.set("tutorialspoint", 900, "memcached").done);
// Get value from cache
System.out.println("Get from Cache:"+mcc.get("tutorialspoint"));
// delete value from cache
System.out.println("Delete from Cache:"+mcc.delete("tutorialspoint").isDone());
// check whether value exists or not
System.out.println("Get from Cache:"+mcc.get("tutorialspoint"));
}
}