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Java Redis 连接池 Jedis 工具类

时间:2018-01-24 19:23:53      阅读:94      评论:0      收藏:0      [点我收藏+]

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import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import redis.clients.jedis.Jedis;
import redis.clients.jedis.JedisPool;
import redis.clients.jedis.JedisPoolConfig;

import java.io.IOException;
import java.io.InputStream;
import java.util.Properties;


public class MyJedisPool {

    private final static Logger logger = LoggerFactory.getLogger(MyJedisPool.class);

    private static JedisPool readPool = null;
    private static JedisPool writePool = null;

    //静态代码初始化池配置
    static {
        try{
            Properties props = new Properties();
            InputStream in = MyJedisPool.class.getResourceAsStream("/redis.properties");
            props.load(in);

            //创建jedis池配置实例
            JedisPoolConfig config = new JedisPoolConfig();

            //设置池配置项值
            config.setMaxTotal(Integer.valueOf(props.getProperty("jedis.pool.maxActive")));
            config.setMaxIdle(Integer.valueOf(props.getProperty("jedis.pool.maxIdle")));
            config.setMaxWaitMillis(Long.valueOf(props.getProperty("jedis.pool.maxWait")));
            config.setTestOnBorrow(Boolean.valueOf(props.getProperty("jedis.pool.testOnBorrow")));
            config.setTestOnReturn(Boolean.valueOf(props.getProperty("jedis.pool.testOnReturn")));

            //根据配置实例化jedis池
            readPool = new JedisPool(config, props.getProperty("redisReadURL"), Integer.valueOf(props.getProperty("redisReadPort")));
            writePool = new JedisPool(config, props.getProperty("redisWriteURL"), Integer.valueOf(props.getProperty("redisWritePort")));

        }catch (IOException e) {
            logger.info("redis连接池异常",e);
        }
    }



    /**获得jedis对象*/
    public static Jedis getReadJedisObject(){
        return readPool.getResource();
    }
    /**获得jedis对象*/
    public static Jedis getWriteJedisObject(){
        return writePool.getResource();
    }

    /**归还jedis对象*/
    public static void returnJedisOjbect(Jedis jedis){
        if (jedis != null) {
            jedis.close();
        }
    }

}

  

import redis.clients.jedis.Jedis;

import java.util.Set;


public class RedisUtils {

    /**
     * 获取hash表中所有key
     * @param name
     * @return
     */
    public static Set<String> getHashAllKey(String name){
        Jedis jedis = null;
        try {
            jedis = MyJedisPool.getReadJedisObject();
            return jedis.hkeys(name);
        }catch (Exception e){
            e.printStackTrace();
        }finally {
            MyJedisPool.returnJedisOjbect(jedis);
        }
        return null;
    }

    /**
     * 从redis hash表中获取
     * @param hashName
     * @param key
     * @return
     */
    public static String getHashKV(String hashName,String key){
        Jedis jedis = null;
        try {
            jedis = MyJedisPool.getReadJedisObject();
            return jedis.hget(hashName, key);
        }catch (Exception e){
            e.printStackTrace();
        }finally {
            MyJedisPool.returnJedisOjbect(jedis);
        }
        return null;
    }

    /**
     * 删除hash表的键值对
     * @param hashName
     * @param key
     */
    public static Long delHashKV(String hashName,String key){
        Jedis jedis = null;
        try {
            jedis = MyJedisPool.getWriteJedisObject();
            return jedis.hdel(hashName,key);
        }catch (Exception e){
            e.printStackTrace();
        }finally {
            MyJedisPool.returnJedisOjbect(jedis);
        }
        return null;
    }

    /**
     * 存放hash表键值对
     * @param hashName
     * @param key
     * @param value
     */
    public static Long setHashKV(String hashName,String key,String value){
        Jedis jedis = null;
        try {
            jedis = MyJedisPool.getWriteJedisObject();
            return jedis.hset(hashName,key,value);
        }catch (Exception e){
            e.printStackTrace();
        }finally {
            MyJedisPool.returnJedisOjbect(jedis);
        }
        return null;
    }

    /**
     * 删除键值对
     * @param k
     * @return
     */
    public static Long delKV(String k){
        Jedis jedis = null;
        try {
            jedis = MyJedisPool.getWriteJedisObject();
            return jedis.del(k);
        }catch (Exception e){
            e.printStackTrace();
        }finally {
            MyJedisPool.returnJedisOjbect(jedis);
        }
        return null;
    }

    /**
     * 放键值对
     * 永久
     * @param k
     * @param v
     */
    public static String setKV(String k, String v)
    {
        Jedis jedis = null;
        try {
            jedis = MyJedisPool.getWriteJedisObject();
            return jedis.set(k, v);
        }catch (Exception e){
            e.printStackTrace();
        }finally {
            MyJedisPool.returnJedisOjbect(jedis);
        }
        return null;
    }


    /**
     * 放键值对
     *
     * @param k
     * @param v
     */
    public static String setKV(String k,int second, String v)
    {
        Jedis jedis = null;
        try {
            jedis = MyJedisPool.getWriteJedisObject();
            return jedis.setex(k,second, v);
        }catch (Exception e){
            e.printStackTrace();
        }finally {
            MyJedisPool.returnJedisOjbect(jedis);
        }
        return null;
    }

    /**
     * 根据key取value
     *
     * @param k
     * @return
     */
    public static String getKV(String k)
    {
        Jedis jedis = null;
        try {
            jedis = MyJedisPool.getReadJedisObject();
            return jedis.get(k);
        }catch (Exception e){
            e.printStackTrace();
        }finally {
            MyJedisPool.returnJedisOjbect(jedis);
        }
        return null;
    }

}

  

 

Java Redis 连接池 Jedis 工具类

标签:eth   bool   mil   value   pos   ava   .info   nbsp   sre   

原文:https://www.cnblogs.com/yanqin/p/8342836.html

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