Memcached - Connection

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To connect to a Memcached server, you need to use the telnet command on HOST and PORT names.

Syntax

The basic syntax of Memcached telnet command is as shown below −

$telnet HOST PORT

Here, HOST and PORT are machine IP and port number respectively, on which the Memcached server is executing.

Example

The following example shows how to connect to a Memcached server and execute a simple set and get command. Assume that the Memcached server is running on host 127.0.0.1 and port 11211.

$telnet 127.0.0.1 11211
Trying 127.0.0.1...
Connected to 127.0.0.1.
Escape character is '^]'.
// now store some data and get it from memcached server
set howcodex 0 900 9
memcached
STORED
get howcodex
VALUE howcodex 0 9
memcached
END

Connection from Java Application

To connect the Memcached server from your java program, you need to add the Memcached jar into your classpath as shown in the previous chapter. Assume that the Memcached server is running on host 127.0.0.1 and port 11211. −

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 sucessfully");
      
      //not set data into memcached server
      System.out.println("set status:"+mcc.set("howcodex", 900, "memcached").done);
      
      //Get value from cache
      System.out.println("Get from Cache:"+mcc.get("howcodex"));
   }
}

Output

On compiling and executing the program, you get to see the following output −

Connection to server successfully
set status:true
Get from Cache:memcached.

The terminal may show few informational messages too, those can be ignored.

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