jedis儲存物件(序列化)開發
阿新 • • 發佈:2019-02-12
首先引入jar包
<!-- https://mvnrepository.com/artifact/redis.clients/jedis --> <dependency> <groupId>redis.clients</groupId> <artifactId>jedis</artifactId> <version>2.8.0</version> </dependency> <!-- https://mvnrepository.com/artifact/commons-pool/commons-pool --><dependency> <groupId>commons-pool</groupId> <artifactId>commons-pool</artifactId> <version>1.5.6</version> </dependency>
//main方法
public static void main(String[] args) { // Jedis jedis = RedisUtil.getJedis(); ; //許可權認證 // jedis.auth("admin");List<String> list=new ArrayList<String>(); list.add("jgc"); list.add("jgc1");JedisPool.set("list", list);//向key-->name中放入了value-->xinxin
System.out.print(JedisPool.get("list"));}
public class JedisPool { public interface JedisAction { Object action(Jedis jedis); } public interfaceJedisActionVoid { void action(Jedis jedis) throws IOException; } public static Object execute(JedisAction jedisAction) { Jedis jedis = RedisUtil.getJedis(); Object o = null; try { o = jedisAction.action(jedis); } catch (Exception e) { } finally { jedis.close(); } return o; } public static void execute(JedisActionVoid jedisAction) { Jedis jedis = RedisUtil.getJedis(); try { jedisAction.action(jedis); } catch (Exception e) { } finally { jedis.close(); } } public static byte[] getStream(Object o) { ByteArrayOutputStream outputStream = new ByteArrayOutputStream(); ObjectOutputStream oout = null; try { oout = new ObjectOutputStream(outputStream); oout.writeObject(o); return outputStream.toByteArray(); } catch (IOException e) { e.printStackTrace(); } finally { if (oout != null) try { oout.close(); } catch (IOException e) { e.printStackTrace(); } } return null; } public static Object getObject(byte[] bytes) throws IOException { ByteArrayInputStream bais; try { bais = new ByteArrayInputStream(bytes); ObjectInputStream ois = new ObjectInputStream(bais); return ois.readObject(); } catch (Exception e) { e.printStackTrace(); } return null; } public static Object get(final String key) { return execute(new JedisAction() { public Object action(Jedis jedis) { Object o = null; byte[] vs = jedis.get(key.getBytes()); if (null != vs) { try { o = getObject(vs); } catch (IOException e) { e.printStackTrace(); } } return o; } }); } public static void set(final String key, final Object value) { execute(new JedisActionVoid() { public void action(Jedis jedis) throws IOException { if (key == null) { return; } jedis.set(key.getBytes(), getStream(value)); } }); } public static void setExpired(final String key, final int time) { execute(new JedisActionVoid() { public void action(Jedis jedis) { jedis.expire(key, time); } }); } }
package com.netease.test.controller; import redis.clients.jedis.Jedis; import redis.clients.jedis.JedisPool; import redis.clients.jedis.JedisPoolConfig; /** * Created by hzjiaoguangcai on 2017/6/21. */ public class RedisUtil { //Redis伺服器IP private static String ADDR = "localhost"; //Redis的埠號 private static int PORT = 6379; //訪問密碼 private static String AUTH = "ac123"; //可用連線例項的最大數目,預設值為8; //如果賦值為-1,則表示不限制;如果pool已經分配了maxActive個jedis例項,則此時pool的狀態為exhausted(耗盡)。 private static int MAX_ACTIVE = 1024; //控制一個pool最多有多少個狀態為idle(空閒的)的jedis例項,預設值也是8。 private static int MAX_IDLE = 200; //等待可用連線的最大時間,單位毫秒,預設值為-1,表示永不超時。如果超過等待時間,則直接丟擲JedisConnectionException; private static int MAX_WAIT = 10000; private static int TIMEOUT = 10000; //在borrow一個jedis例項時,是否提前進行validate操作;如果為true,則得到的jedis例項均是可用的; private static boolean TEST_ON_BORROW = true; private static JedisPool jedisPool = null; /** * 初始化Redis連線池 */ static { try { JedisPoolConfig config = new JedisPoolConfig(); config.setMaxTotal(MAX_ACTIVE); config.setMaxIdle(MAX_IDLE); config.setTestOnBorrow(TEST_ON_BORROW); jedisPool = new JedisPool(config, ADDR, PORT, TIMEOUT); } catch (Exception e) { e.printStackTrace(); } } /** * 獲取Jedis例項 * @return */ public synchronized static Jedis getJedis() { try { if (jedisPool != null) { Jedis resource = jedisPool.getResource(); return resource; } else { return null; } } catch (Exception e) { e.printStackTrace(); return null; } } /** * 釋放jedis資源 * @param jedis */ public static void returnResource(final Jedis jedis) { jedis.close(); } }