Java 连接 Memcached 服务(上)

原创

陈不成i

修改于 2021-07-09 14:30:26

5250

连接实例

Java 连接 Memcached

import net.spy.memcached.MemcachedClient;
import java.net.*;
 
 
public class MemcachedJava {
   public static void main(String[] args) {
      try{
         // 本地连接 Memcached 服务
         MemcachedClient mcc = new MemcachedClient(new InetSocketAddress("127.0.0.1", 11211));
         System.out.println("Connection to server successful.");
         
         // 关闭连接
         mcc.shutdown();
         
      }catch(Exception ex){
         System.out.println( ex.getMessage() );
      }
   }
}

该程序中我们使用 InetSocketAddress 连接 IP 为 127.0.0.1 端口为 11211 的 memcached 服务。

执行以上代码，如果连接成功会输出以下信息：

Connection to server successful.

set 操作实例

以下使用 java.util.concurrent.Future 来存储数据

import java.net.InetSocketAddress;
import java.util.concurrent.Future;
 
import net.spy.memcached.MemcachedClient;
 
public class MemcachedJava {
   public static void main(String[] args) {
   
      try{
         // 连接本地的 Memcached 服务
         MemcachedClient mcc = new MemcachedClient(new InetSocketAddress("127.0.0.1", 11211));
         System.out.println("Connection to server successful.");
      
         // 存储数据
         Future fo = mcc.set("runoob", 900, "Free Education");
      
         // 查看存储状态
         System.out.println("set status:" + fo.get());
         
         // 输出值
         System.out.println("runoob value in cache - " + mcc.get("runoob"));
 
         // 关闭连接
         mcc.shutdown();
         
      }catch(Exception ex){
         System.out.println( ex.getMessage() );
      }
   }
}

执行程序，输出结果为：

Connection to server successful.
set status:true
runoob value in cache - Free Education

add 操作实例

import java.net.InetSocketAddress;
import java.util.concurrent.Future;
 
import net.spy.memcached.MemcachedClient;
 
public class MemcachedJava {
   public static void main(String[] args) {
   
      try{
   
         // 连接本地的 Memcached 服务
         MemcachedClient mcc = new MemcachedClient(new InetSocketAddress("127.0.0.1", 11211));
         System.out.println("Connection to server successful.");
 
         // 添加数据
         Future fo = mcc.set("runoob", 900, "Free Education");
 
         // 打印状态
         System.out.println("set status:" + fo.get());
 
         // 输出
         System.out.println("runoob value in cache - " + mcc.get("runoob"));
 
         // 添加
         fo = mcc.add("runoob", 900, "memcached");
 
         // 打印状态
         System.out.println("add status:" + fo.get());
 
         // 添加新key
         fo = mcc.add("runoob", 900, "All Free Compilers");
 
         // 打印状态
         System.out.println("add status:" + fo.get());
         
         // 输出
         System.out.println("runoob value in cache - " + mcc.get("runoob"));
 
         // 关闭连接
         mcc.shutdown();
         
      }catch(Exception ex){
         System.out.println(ex.getMessage());
      }
   }
}

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