安装libevent和memcached以及memcached

最新推荐文章于 2024-08-25 09:27:40 发布

jinzk123

最新推荐文章于 2024-08-25 09:27:40 发布

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memcached客户端

/**
 * Created by pc on 2018/6/22.
 */

import Vo.UserModel;
import net.rubyeye.xmemcached.*;
import net.rubyeye.xmemcached.exception.MemcachedException;
import net.rubyeye.xmemcached.utils.AddrUtil;

import java.io.IOException;
import java.util.concurrent.TimeoutException;

/**
 * describe:
 *
 * @author xxx
 * @date4 {YEAR}/06/22
 */
public class ShowApi {
    //新增set,add
    private static void showAdd(UserModel um) throws IOException, InterruptedException, MemcachedException, TimeoutException {
        MemcachedClientBuilder builder = new XMemcachedClientBuilder(AddrUtil.getAddresses("101.200.63.29:2222"));
        MemcachedClient memcachedClient = builder.build();
        memcachedClient.set("k6",0,um);
        //修改replace,append,prepend
        memcachedClient.replace("k6",0,um);
        //删除delete
        //查询gets
        GetsResponse<UserModel> gets = memcachedClient.gets("k6");
        //数值操作decr/incr
        memcachedClient.incr("k5", 5, 10);//如果key不存在则第三个参数为初始值，存在则递增或递减，不能减除负数
        //1. 检查更新cas结合gets
        GetsResponse<UserModel> get = gets;
        //2. 先获取版本号
        long cas = get.getCas();
        //3. 进行更新
        memcachedClient.cas("k6",0,um,cas);
        //更新数据过期时间
        memcachedClient.touch("k6",3600);
        //操作Xmemcached操作的cas
        memcachedClient.cas("k6", new CASOperation<String>() {
            //重试次数
            public int getMaxTries() {
                return 1;
            }

            public String getNewValue(long cas, String currentValue) {
                return currentValue;
            }
        });
        //计数器
        Counter counter = new Counter(memcachedClient,"k6",12);
        //加入命名空间后，key的前缀加上命名空间名
    }
    public static UserModel get(String key) throws InterruptedException, MemcachedException, TimeoutException, IOException {
        MemcachedClientBuilder builder = new XMemcachedClientBuilder(AddrUtil.getAddresses("101.200.63.29:2222"));
        MemcachedClient memcachedClient = builder.build();
        return memcachedClient.get(key);
    }
    public static void main(String[] args) throws InterruptedException, TimeoutException, MemcachedException, IOException {
        UserModel userModel = new UserModel(1,"22",3);
        showAdd(userModel);
       System.out.println(get("k6"));
    }
}