java封装数据库连接池获取资源

package com.itheima.jedis;

import org.junit.jupiter.api.Test;

import redis.clients.jedis.Jedis;
import redis.clients.jedis.JedisPool;
import redis.clients.jedis.JedisPoolConfig;

public class jedisTest {
 //获得单一的jedis操作数据库
 @Test
 public void test1() {
  //获取一个jedis对象
  Jedis jedis = new Jedis("192.168.1.115", 6379);
  
  //得到数据
  String username = jedis.get("username");
  System.out.println(username);
  
  //存储数据
  jedis.set("addr", "杭州");
  System.out.println(jedis.get("addr"));
 }
 
 @Test
 public void test2() {
  //获取连接池配置的对象
  JedisPoolConfig poolConfig = new JedisPoolConfig();
  poolConfig.setMaxIdle(30);
  poolConfig.setMinIdle(10);
  poolConfig.setMaxTotal(50);
  
  //获取连接池对象
  JedisPool pool = new JedisPool(poolConfig, "192.168.1.115", 6379);
  
  //从连接池获取资源
  Jedis jedis = pool.getResource();
  jedis.set("xxx", "yyyy");
  System.out.println(jedis.get("xxx"));
  
  //关闭资源
  jedis.close();
  //关闭连接池
  pool.close();
 }

}

package com.itheima.jedis;

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

import redis.clients.jedis.Jedis;
import redis.clients.jedis.JedisPool;
import redis.clients.jedis.JedisPoolConfig;

public class JedisPoolUtils {
 private static JedisPool pool = null;
 
 static {
  //加载配置文件 
  InputStream in = JedisPoolUtils.class.getClassLoader().getResourceAsStream("redis.properties");
  Properties pro = new Properties();
  try {
   pro.load(in);
  } catch (IOException e) {
   // TODO Auto-generated catch block
   e.printStackTrace();
  }
  JedisPoolConfig poolConfig = new JedisPoolConfig();
  poolConfig.setMaxIdle(Integer.parseInt(pro.get("redis.MaxIdle").toString()));
  poolConfig.setMinIdle(Integer.parseInt(pro.get("redis.MinIdle").toString()));
  poolConfig.setMaxTotal(Integer.parseInt(pro.get("redis.MaxTotal").toString()));
  pool = new JedisPool(poolConfig,pro.getProperty("redis.url"), Integer.parseInt(pro.get("redis.port").toString()));
 }
 //获取redis资源的方法
 public static Jedis getRedis() {
  return pool.getResource();
 }
    public static void main(String[] args) {
  Jedis jedis = getRedis();
  System.out.println(jedis.get("xxx"));
 }

}


redis.MaxIdle=30
redis.MinIdle=10
redis.MaxTotal=100
redis.url=192.168.1.115
redis.port=6379