From 3e52c6ba8cf9603809523aa2939395a3fc023666 Mon Sep 17 00:00:00 2001
From: yingjun <yingjunv_c@126.com>
Date: Sun, 31 Jul 2016 22:42:06 +0800
Subject: [PATCH] =?UTF-8?q?=E6=B7=BB=E5=8A=A0redis=20cluster=E6=94=AF?=
 =?UTF-8?q?=E6=8C=81?=
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---
 .../yingjun/ssm/cache/RedisClusterCache.java  | 124 ++++++++++++++++++
 1 file changed, 124 insertions(+)
 create mode 100644 src/main/java/com/yingjun/ssm/cache/RedisClusterCache.java

diff --git a/src/main/java/com/yingjun/ssm/cache/RedisClusterCache.java b/src/main/java/com/yingjun/ssm/cache/RedisClusterCache.java
new file mode 100644
index 0000000..3f2ab71
--- /dev/null
+++ b/src/main/java/com/yingjun/ssm/cache/RedisClusterCache.java
@@ -0,0 +1,124 @@
+package com.yingjun.ssm.cache;
+
+import com.yingjun.ssm.util.ProtoStuffSerializerUtil;
+import org.springframework.stereotype.Component;
+import redis.clients.jedis.Jedis;
+import redis.clients.jedis.JedisCluster;
+import redis.clients.jedis.JedisPool;
+
+import java.util.HashSet;
+import java.util.List;
+import java.util.Map;
+import java.util.Set;
+
+
+/**
+ * redis缓存
+ *
+ * 采用Jedis Cluster
+ *
+ * @author yingjun
+ *
+ */
+@Component
+public class RedisClusterCache {
+	
+	
+	public final static String CAHCENAME="cache";//缓存名
+	public final static int CAHCETIME=60;//默认缓存时间
+
+	//@Autowired
+	private JedisCluster jedisCluster;
+
+
+	public <T> void putCache(String key, T obj) {
+		final byte[] bkey = key.getBytes();
+		final byte[] bvalue = ProtoStuffSerializerUtil.serialize(obj);
+		jedisCluster.set(bkey,bvalue);
+	}
+
+	public <T> void putCacheWithExpireTime(String key, T obj,  int expireTime) {
+		final byte[] bkey = key.getBytes();
+		final byte[] bvalue = ProtoStuffSerializerUtil.serialize(obj);
+		jedisCluster.setex(bkey, expireTime, bvalue);
+	}
+
+	public <T> void putListCache(String key, List<T> objList) {
+		final byte[] bkey = key.getBytes();
+		final byte[] bvalue = ProtoStuffSerializerUtil.serializeList(objList);
+		jedisCluster.set(bkey,bvalue);
+	}
+
+	public <T> void putListCacheWithExpireTime(String key, List<T> objList, int expireTime) {
+		final byte[] bkey = key.getBytes();
+		final byte[] bvalue = ProtoStuffSerializerUtil.serializeList(objList);
+		jedisCluster.setex(bkey, expireTime, bvalue);
+	}
+
+	public <T> T getCache(final String key, Class<T> targetClass) {
+		byte[] result =jedisCluster.get(key.getBytes());
+		if (result == null) {
+			return null;
+		}
+		return ProtoStuffSerializerUtil.deserialize(result, targetClass);
+	}
+
+	public <T> List<T> getListCache(String key, Class<T> targetClass) {
+		byte[] result =jedisCluster.get(key.getBytes());
+		if (result == null) {
+			return null;
+		}
+		return ProtoStuffSerializerUtil.deserializeList(result, targetClass);
+	}
+
+	/**
+	 * 精确删除key
+	 * 
+	 * @param key
+	 */
+	public void deleteCache(String key) {
+		jedisCluster.del(key);
+	}
+
+	/**
+	 * 模糊删除key
+	 * 
+	 * @param pattern
+	 */
+	public void deleteCacheWithPattern(String pattern) {
+		Set<String> keys =this.keys(pattern);
+		for(String key:keys){
+			jedisCluster.del(key);
+		}
+	}
+
+	/**
+	 * 清空所有缓存
+	 */
+	public void clearCache() {
+		deleteCacheWithPattern(RedisClusterCache.CAHCENAME+"|*");
+	}
+
+	/**
+	 * 由于JedisCluster没有提供对keys命令的封装，只能自己实现
+	 * @param pattern
+	 * @return
+     */
+	public Set<String> keys(String pattern){
+		Set<String> keys = new HashSet<>();
+		Map<String, JedisPool> clusterNodes = jedisCluster.getClusterNodes();
+		for(String k : clusterNodes.keySet()){
+			JedisPool jp = clusterNodes.get(k);
+			Jedis connection = jp.getResource();
+			try {
+				keys.addAll(connection.keys(pattern));
+			} catch(Exception e){
+				e.printStackTrace();
+			} finally{
+				//用完一定要close这个链接！！！
+				connection.close();
+			}
+		}
+		return keys;
+	}
+}
-- 
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