JedisPool

package com.wsd;


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.HashMap;
import java.util.Map;
import java.util.Properties;

public class Redis {
    public static void main(String[] args)  {

        //读取properties file
        String fileName = "redis.properties";
        Map map = getProperties(fileName);

        String host = map.get("host");
        int port = Integer.valueOf( map.get("port") );
        String auth = map.get("auth");
        int select = Integer.valueOf( map.get("select") );

        //Jedis 连接池的配置类，它用于配置连接池的行为和属性
        JedisPoolConfig poolConfig = new JedisPoolConfig();
        poolConfig.setMaxTotal(5); // 最大连接数
        poolConfig.setMaxIdle(3); // 最大空闲连接数
        poolConfig.setMinIdle(1); // 最小空闲连接数

        //创建jedis连接池
        JedisPool jedisPool = new JedisPool(poolConfig,host,port,3000,auth,select);

        //从连接池获取连接
        Jedis jedis = jedisPool.getResource();

        //执行set命令
        String OK = jedis.set("name","罗小白");
        System.out.println(OK);

        //执行get命令
        String name = jedis.get("name");
        System.out.println("name=" + name);

        if(jedis != null)
            jedis.close();

    }


   private static Map getProperties(String fileName){
       Map map = new HashMap<>();

       Properties properties = new Properties();
       InputStream inputStream = null;

       try{
           //读取properties file
           inputStream = Thread.currentThread().getContextClassLoader().getResourceAsStream(fileName);
           properties.load(inputStream);

           String host = properties.getProperty("host");
           String port = properties.getProperty("port");
           String auth = properties.getProperty("auth");
           String select = properties.getProperty("select");

           map.put("host",host);
           map.put("port",port);
           map.put("auth",auth);
           map.put("select",select);

       }catch (IOException ex){
           System.out.println("read file:" + fileName + " fail");
       }finally {
           if(inputStream != null);
           try {
               inputStream.close();
           } catch (IOException e) {
               e.printStackTrace();
           }
       }
       return map;
   }


}