package com.jianyuan.redisTest;
import java.util.Iterator;
import java.util.List;
import java.util.Set;
import redis.clients.jedis.Jedis;
public class RedisTest {
public static void main(String[] args) {
//連接本地的Redis服務
Jedis jedis = new Jedis("127.0.0.1",6379);
//權限認證
jedis.auth("wenhongyu66");
jedis.select(0);
System.out.println("連接成功");
//查看服務是否運行
System.out.println(jedis.ping());
//設置 redis 字符串數(shù)據(jù)
jedis.set("runoobkey", "www.runoob.com");
 // 獲取存儲的數(shù)據(jù)并輸出
System.out.println("redis 存儲的字符串為: "+ jedis.get("runoobkey"));
 //存儲數(shù)據(jù)到列表中
jedis.lpush("site-list", "Runoob");
 jedis.lpush("site-list", "Google");
 jedis.lpush("site-list", "Taobao");
 System.out.println(jedis.llen("site-list"));
 // 獲取存儲的數(shù)據(jù)并輸出
List<String> list = jedis.lrange("site-list", 0 ,jedis.llen("site-list"));
 for(int i=0; i<list.size(); i++) {
 System.out.println("列表項為: "+list.get(i));
 }
 // 獲取數(shù)據(jù)并輸出
Set<String> keys = jedis.keys("*"); 
Iterator<String> it=keys.iterator() ; 
while(it.hasNext()){ 
String key = it.next(); 
System.out.println(key); 
}
}
}

private static JedisPool jedisPool = null;
private static Jedis jedis;
 
static {
 jedis = getJedisPool().getResource();
}
 
/**
 * 構建redis連接池
 */
public static JedisPool getJedisPool() {
 if (jedisPool == null) {
  JedisPoolConfig config = new JedisPoolConfig();
  config.setMaxTotal(1024); // 可用連接實例的最大數(shù)目,如果賦值為-1,表示不限制.
  config.setMaxIdle(5); // 控制一個Pool最多有多少個狀態(tài)為idle(空閑的)jedis實例,默認值也是8
  config.setMaxWaitMillis(1000 * 100); // 等待可用連接的最大時間,單位毫秒,默認值為-1,表示永不超時/如果超過等待時間,則直接拋出異常
  config.setTestOnBorrow(true); // 在borrow一個jedis實例時,是否提前進行validate操作,如果為true,則得到的jedis實例均是可用的
  jedisPool = new JedisPool(config, "127.0.0.1", 6379);
 }
 return jedisPool;
}
 
/**
 * 釋放jedis資源
 */
public static void returnResource(Jedis jedis) {
 if (jedis != null) {
  jedis.close();
 }
}
public static String get(String key) {
 String value = null;
 Jedis jedis = null;
 try {
  JedisPool pool = getJedisPool();
  jedis = pool.getResource();
  value = jedis.get(key);
 }
 catch (Exception e) {
  returnResource(jedis);
  e.printStackTrace();
 }
 finally {
  returnResource(jedis);
 }
 return value;
}

public class RedisTemplate {
 
 private JedisPool jedisPool;
 
 public RedisTemplate(JedisPool jedisPool) {
  this.jedisPool = jedisPool;
 }
 
 public <T> T execute(RedisCallback<T> callback) {
  Jedis jedis = jedisPool.getResource();
  try {
   return callback.handle(jedis);
  }
  catch (Exception e) {
   // throw your exception
   throw e;
  }
  finally {
   returnResource(jedis);
  }
 }
 
 private void returnResource(Jedis jedis) {
  if (jedis != null) {
   jedis.close();
  }
 }
}
public interface RedisCallback<T> {
 public T handle(Jedis jedis);
}