首先要在本地安装redis,官方只支持Linux版,windows64版本也有,请自行下载(https://github.com/MSOpenTech/redis/releases)
下载完之后测试安装是否成功(http://jingyan.baidu.com/article/f25ef2546119fd482c1b8214.html)若成功后,则开始代码上的测试。
redis的配置文件为:
redis.pool.maxActive=1024
redis.pool.maxIdle=200
redis.pool.maxWait=1000
redis.pool.testOnBorrow=false
redis.pool.testOnReturn=true
#IP
redis.ip=127.0.0.1
#Port
redis.port=6379
其中,每一个redis服务都会有一个端口,默认为6379端口,IP则表示redis的安装路径IP。
搭建Redis的线程池:
public class RedisPoolManager {
private static JedisPool pool;
static {
ResourceBundle bundle = ResourceBundle.getBundle("redis");
if (bundle == null)
throw new IllegalArgumentException("[redis.properties] is not found");
JedisPoolConfig config = new JedisPoolConfig();
config.setMaxTotal(Integer.valueOf(bundle.getString("redis.pool.maxActive")));
config.setMaxIdle(Integer.valueOf(bundle.getString("redis.pool.maxIdle")));
config.setMaxWaitMillis(Long.valueOf(bundle.getString("redis.pool.maxWait")));
config.setTestOnBorrow(Boolean.valueOf(bundle.getString("redis.pool.testOnBorrow")));
config.setTestOnReturn(Boolean.valueOf(bundle.getString("redis.pool.testOnReturn")));
pool = new JedisPool(config, bundle.getString("redis.ip"), Integer.valueOf(bundle.getString("redis.port")));
}
/**
* Get Jedis resource from the pool
* @return
*/
public static Jedis createInstance() {
Jedis jedis = pool.getResource();
// jedis.auth("will");
return jedis;
}
/**
* Return the resource to pool
* @param jedis
*/
public static void returnResource(Jedis jedis) {
pool.returnResource(jedis);
}
}
jedis基础上实现的自定义,你也可以直接使用jedis)
@Component("cacheManager")
public class CacheManager {
private volatile static CacheManager uniqueCacheManager;
private CacheManager(){
}
public static CacheManager getInstance(){
if(uniqueCacheManager == null){
synchronized (CacheManager.class){
if(uniqueCacheManager == null){
uniqueCacheManager = new CacheManager();
}
}
}
return uniqueCacheManager;
}
private Jedis jedis = RedisPoolManager.createInstance();
Basic Functions(String related) - Start /
/**
* If the value existed, will override the value
* @param entries
*/
public void set(Map<String, String> entries) {
for (Map.Entry<String, String> entry : entries.entrySet()) {
jedis.set(entry.getKey(), entry.getValue());
}
}
/**
* If the key exited, will override the value
* @param key
* @param value
*/
public void set(String key, String value) {
jedis.set(key, value);
}
/**
*
* @param entries
*/
public void setnx(Map<String, String> entries) {
for (Map.Entry<String, String> entry : entries.entrySet()) {
jedis.setnx(entry.getKey(), entry.getValue());
}
}
/**
* Only set the value when the key not exist
* @param key
* @param value
*/
public void setnx(String key, String value) {
jedis.setnx(key, value);
}
/**
* Set the value to the key and specify the key's life cycle as seconds.
* @param key
* @param live
* @param value
*/
public void setKeyLive(String key, int live, String value) {
jedis.setex(key, live, value);
}
/**
* Append the value to an existing key
* @param key
* @param value
*/
public void append(String key, String value) {
jedis.append(key, value);
}
/**
* Get the value by the given key
* @param key
* @return
*/
public String getValue(String key) {
return jedis.get(key);
}
/**
* Get the values of the specified keys
* @param keys
* @return
*/
public List<String> getValues(String... keys) {
return jedis.mget(keys);
}
/**
* remove the value by the key from the cache
* @param key
* @return
*/
public Long removeValue(String key) {
return jedis.del(key);
}
/**
* Delete the expected values from the cache
* @param keys
* @return
*/
public Long removeValues(String... keys) {
return jedis.del(keys);
}
/**
* Identify whether the key in the cache or not
* @param key
* @return
*/
public boolean exists(String key) {
return jedis.exists(key);
}
/**
* Release the resource
*/
public void returnSource() {
RedisPoolManager.returnResource(jedis);
}
/**
* Clear the cache
*/
public String clear() {
return jedis.flushDB();
}
/**
* Calculate the size of the cache
* @return
*/
public long calculateSize() {
return jedis.dbSize();
}
/**
* Get and update the member by the key in the cache
* @param key
* @param value
* @return
*/
public String getSet(String key, String value) {
return jedis.getSet(key, value);
}
/**
*
* @param key
* @param startOffset
* @param endOffset
* @return
*/
public String getRange(String key, int startOffset, int endOffset) {
return jedis.getrange(key, startOffset, endOffset);
}
Basic Functions(String related) - End /
List Functions - Start /
/**
* push the value to the given list
*
* 将一个或多个值 value 插入到列表 key 的表头
*如果有多个 value 值,那么各个 value 值按从左到右的顺序依次插入到表头:
*比如说,对空列表 mylist 执行命令 LPUSH mylist a b c ,列表的值将是 c b a ,
*这等同于原子性地执行 LPUSH mylist a 、 LPUSH mylist b 和 LPUSH mylist c 三个命令。
*如果 key 不存在,一个空列表会被创建并执行 LPUSH 操作。
*当 key 存在但不是列表类型时,返回一个错误。
*
* @param listName
* @param values
* @return
*/
public long add2List(String listName, String... values) {
return jedis.lpush(listName, values);
}
/**
* get the list size
* @param listName
* @return
*/
public long getListSize(String listName) {
return jedis.llen(listName);
}
/**
* Update the member on the index
* @param listName
* @param index
* @param value
*/
public void updateList(String listName, int index, String value) {
jedis.lset(listName, index, value);
}
/**
* Get the value on the index
* @param listName
* @param index
* @return
*/
public String getIndexValue(String listName, int index) {
return jedis.lindex(listName, index);
}
/**
* 根据参数 count 的值,移除列表中与参数 value 相等的元素。
* count 的值可以是以下几种:
*count > 0 : 从表头开始向表尾搜索,移除与 value 相等的元素,数量为 count 。
*count < 0 : 从表尾开始向表头搜索,移除与 value 相等的元素,数量为 count 的绝对值。
*count = 0 : 移除表中所有与 value 相等的值。
*
* @param listName
* @param count
* @param value
* @return
*/
public long removeLValue(String listName, int count, String value) {
return jedis.lrem(listName, count, value);
}
/**
* Remove the value out side of the range
*
* @param listName
* @param start
* @param end
* @return
*/
public String removeOutterValue(String listName, int start, int end) {
return jedis.ltrim(listName, start, end);
}
/**
* Pop the lists
* @param listName
* @return
*/
public String popList(String listName) {
return jedis.lpop(listName);
}
/**
* Get the specified list values
*
* 返回列表 key 中指定区间内的元素,区间以偏移量 start 和 stop 指定。
* 下标(index)参数 start 和 stop 都以 0 为底,也就是说,以 0 表示列表的第一个元素,以 1 表示列表的第二个元素,以此类推。
* 你也可以使用负数下标,以 -1 表示列表的最后一个元素, -2 表示列表的倒数第二个元素,以此类推
*
* 注意LRANGE命令和编程语言区间函数的区别
假如你有一个包含一百个元素的列表,对该列表执行 LRANGE list 0 10 ,结果是一个包含11个元素的列表,
这表明 stop 下标也在 LRANGE 命令的取值范围之内(闭区间), 这和某些语言的区间函数可能不一致,
比如Ruby的 Range.new 、 Array#slice 和Python的 range() 函数
*
* @param listName
* @param start
* @param end
* @return
*/
public List<String> getListValues(String listName, long start, long end) {
return jedis.lrange(listName, start, end);
}
/**
* Get all of the values of the list
*
* @param listName
* @return
*/
public List<String> getAllListValues(String listName) {
return jedis.lrange(listName, 0, -1);
}
/**
* Sort the list
* @param listName
* @return
*/
public List<String> sort(String listName) {
return jedis.sort(listName);
}
/**
*
* @param key
* @param params
* @param dstKey
* @return
*/
public Long sort(String key, SortingParams params, String dstKey) {
return jedis.sort(key, params, dstKey);
}
List Functions - End /
Set Functions - Start /
/**
* Identify whether the member in the given set or not
* @param setName
* @param member
* @return
*/
public boolean exists(String setName, String member) {
return jedis.sismember(setName, member);
}
/**
* Add the members to set
* @param setName
* @param members
* @return
*/
public long add2Set(String setName, String... members) {
return jedis.sadd(setName, members);
}
/**
* Get all of the values of the set
*
* @param setName
* @return
*/
public Set<String> getAllSetValues(String setName) {
return jedis.smembers(setName);
}
/**
* Remove members from the set
*
* @param setName
* @param members
* @return
*/
public Long removeSValues(String setName, String ... members) {
return jedis.srem(setName, members);
}
/**
* Set Pop
* @param setName
* @return
*/
public String popSet(String setName) {
return jedis.spop(setName);
}
/**
* 交集
* Get the intersection
* @param sets
* @return
*/
public Set<String> intersection(String... sets) {
return jedis.sinter(sets);
}
/**
* 并集
* Get the union set of the given sets
* @param sets
* @return
*/
public Set<String> union(String... sets) {
return jedis.sunion(sets);
}
/**
* 差集
* Get the difference set of the given sets
*
* @param sets
* @return
*/
public Set<String> diff(String... sets) {
return jedis.sdiff(sets);
}
Set Functions - End /
Sorted Set Functions - Start /
/**
* 将一个或多个 member 元素及其 score 值加入到有序集 key 当中。
* 如果某个 member 已经是有序集的成员,那么更新这个 member 的 score 值,并通过重新插入这个 member 元素,
* 来保证该 member 在正确的位置上。
*
*
* @param ssetName - 如果 ssetName 不存在,则创建一个空的有序集并执行 ZADD 操作。
* 当 ssetName 存在但不是有序集类型时,返回一个错误。
* @param score - 可以是整数值或者双精度浮点数,用于排序
* @param member
* @return
*/
public long add2SSet(String ssetName, double score, String member) {
return jedis.zadd(ssetName, score, member);
}
/**
* Return the size of the sorted set
* @param sset
* @return
*/
public long card(String sset) {
return jedis.zcard(sset);
}
/**
* Get the sub set
* @param sset
* @param start
* @param end
* @return
*/
public Set<String> getSubSet(String sset, long start, long end) {
return jedis.zrange(sset, start, end);
}
/**
* Get the index of the member
* @param sset
* @param member
* @return
*/
public Double getIndex(String sset, String member) {
return jedis.zscore(sset, member);
}
/**
* Remove the members
* @param sset
* @param members
* @return
*/
public Long removeSSValues(String sset, String ...members) {
return jedis.zrem(sset, members);
}
/**
* Get all of the values of the sorted set
* @param sset
* @return
*/
public Set<String> getAllSSValues(String sset) {
return jedis.zrange(sset, 0, -1);
}
/**
*
* @param sset
* @param start
* @param end
* @return
*/
public Long countRange(String sset, double start, double end) {
return jedis.zcount(sset, start, end);
}
Sorted Set Functions - End /
Hash Map Functions - Start /
/**
* Push the value to the map on the key
* @param map
* @param key
* @param value
* @return
*/
public long push(String map, String key, String value) {
return jedis.hset(map, key, value);
}
/**
* Identify whether the key exist or not
* @param map
* @param key
* @return
*/
public boolean hexists(String map, String key) {
return jedis.hexists(map, key);
}
/**
* Get the value of the key
* @param map
* @param key
* @return
*/
public String getValue(String map, String key) {
return jedis.hget(map, key);
}
/**
* Get the values of the keys
*
* @param map
* @param keys
* @return
*/
public List<String> getHValues(String map, String... keys) {
return jedis.hmget(map, keys);
}
/**
* Remove the values by the keys
* @param map
* @param keys
* @return
*/
public Long removeHValues(String map, String ... keys) {
return jedis.hdel(map, keys);
}
/**
* Increment the value on the key for the map
* @param map
* @param key
* @param value
* @return
*/
public Long increment(String map, String key, long value) {
return jedis.hincrBy(map, key, value);
}
/**
* Get all of the keys of the map
* @param map
* @return
*/
public Set<String> getKeys(String map) {
return jedis.hkeys(map);
}
/**
* Get all of the values of the map
* @param map
* @return
*/
public List<String> getValues(String map) {
return jedis.hvals(map);
}
public Long expire(String key, int seconds){
return jedis.expire(key,seconds);
}
Hash Map Functions - End //
}
测试类为:(copy了一个网上的例子)
public class testCacheManager {
private @Resource
CacheManager cacheManager = CacheManager.getInstance();
@Before
public void init() {
System.out.println(cacheManager.hashCode() + "");
}
@Test
public void basicTest() {
System.out.println("============= Basic1 ==========================");
// 清空数据
System.out.println(cacheManager.clear());
System.out.println(cacheManager.exists("josh"));
// 存储数据
cacheManager.set("josh", "WangSheng");
System.out.println(cacheManager.exists("josh"));
System.out.println(cacheManager.getValue("josh"));
System.out.println("============= Basic 2 ==========================");
// 若key不存在,则存储
cacheManager.setnx("josh", "wang sheng");
System.out.println(cacheManager.getValue("josh"));
// 覆盖数据
cacheManager.set("josh", "wang sheng");
System.out.println(cacheManager.getValue("josh"));
// 追加数据
cacheManager.append("josh", "Lily");
System.out.println(cacheManager.getValue("josh"));
System.out.println("============= Basic 3 ==========================");
// 设置key的有效期,并存储数据
cacheManager.setKeyLive("josh", 2, "WangSheng-Lily");
System.out.println(cacheManager.getValue("josh"));
try {
Thread.sleep(3000);
System.out.println(cacheManager.getValue("josh"));
} catch (InterruptedException e) {
System.out.println("Josh released ... now ^_^");
}
System.out.println("============= Basic 4 ==========================");
// 获取并更改数据
cacheManager.getSet("josh", "wang sheng");
System.out.println(cacheManager.getValue("josh"));
System.out.println("============= Basic 5 ==========================");
// 截取value的值
System.out.println(cacheManager.getRange("josh", 1, 3));
cacheManager.set("MJ", "Jordan");
System.out.println(cacheManager.getValues("josh", "MJ"));
System.out.println("============= Basic 6 ==========================");
cacheManager.removeValues(new String[]{"josh", "MJ"});
System.out.println(cacheManager.getValues("josh", "MJ"));
}
/**
* List 是无序的,所以测试结果和expect的结果可能不一致
*
* 还是是从-1开始?
*/
@Test
public void listTest() {
System.out.println("============= list1 ==========================");
// 清空数据
System.out.println(cacheManager.clear());
// 添加数据
cacheManager.add2List("ball", "Jordan");
cacheManager.add2List("ball", "Maddie");
cacheManager.add2List("ball", "AI");
cacheManager.add2List("ball", "Yao");
// The order should be : Yao, AI, Maddie, Jordan
// 数组长度
System.out.println(cacheManager.getListSize("ball"));
System.out.println(cacheManager.getAllListValues("ball"));
System.out.println(cacheManager.getListValues("ball", 0, -1));
System.out.println("============= list2 ==========================");
// 修改列表中单个值
cacheManager.updateList("ball", 1, "Allen Iversen");
System.out.println(cacheManager.getListValues("ball", 0, 3));
// 获取列表指定下标的值
System.out.println(cacheManager.getIndexValue("ball", 2));
// 删除列表指定下标的值
System.out.println(cacheManager.removeLValue("ball", 1, "Yao"));
System.out.println(cacheManager.getAllListValues("ball"));
// 删除区间以外的数据
System.out.println(cacheManager.removeOutterValue("ball", 0, 1));
System.out.println(cacheManager.getAllListValues("ball"));
// 列表出栈
System.out.println(cacheManager.popList("ball"));
}
@Test
public void testSet() {
System.out.println("========================= Set ====================");
// 清空数据
System.out.println(cacheManager.clear());
// 添加数据
cacheManager.add2Set("ball", "Jordan");
cacheManager.add2Set("ball", "Maddie");
cacheManager.add2Set("ball", "AI");
cacheManager.add2Set("ball", "Yao");
// 判断value是否在列表中
System.out.println(cacheManager.exists("ball", "AI"));
System.out.println(cacheManager.exists("ball", "Yao "));
// 整个列表的值
System.out.println(cacheManager.getAllSetValues("ball"));
// 删除指定的元素
System.out.println(cacheManager.removeSValues("ball", "Yao"));
// 出栈
System.out.println(cacheManager.popSet("ball"));
// 整个列表的值
System.out.println(cacheManager.getAllSetValues("ball"));
cacheManager.add2Set("bball", "Jordan");
cacheManager.add2Set("bball", "Maddie");
cacheManager.add2Set("bball", "AI");
cacheManager.add2Set("bball", "Yao");
cacheManager.add2Set("fball", "Jordan");
cacheManager.add2Set("fball", "Ronaldo");
cacheManager.add2Set("fball", "Rivaldo");
cacheManager.add2Set("fball", "Cristiano Ronaldo");
cacheManager.add2Set("fball", "Ronaldinho");
// 交集
System.out.println(cacheManager.intersection("bball", "fball"));
// 并集
System.out.println(cacheManager.union("bball", "fball"));
// 差集
System.out.println(cacheManager.diff("bball", "fball"));
}
@Test
public void testHash() {
System.out.println("============= hash ==========================");
// 清空数据
System.out.println(cacheManager.clear());
// 添加数据
cacheManager.push("hball", "Jordan", "Chicago");
cacheManager.push("hball", "Maddie", "Houston");
cacheManager.push("hball", "AI", "Philadelphia");
cacheManager.push("hball", "Yao", "Houston");
// 判断某个值是否存在
System.out.println(cacheManager.hexists("hball", "Yao "));
System.out.println(cacheManager.hexists("hball", "AI"));
// 获取指定的值
System.out.println(cacheManager.getValue("hball", "Jordan"));
// 批量获取指定的值
System.out.println(cacheManager.getHValues("hball", "Jordan", "Maddie"));
// 删除指定的值
System.out.println(cacheManager.removeHValues("hball", "Yao"));
// 为key中的域 field 的值加上增量 increment, hash value must be a data value
// System.out.println(cacheManager.increment("hball", "Jordan", 123l));
// 获取所有的keys
System.out.println(cacheManager.getKeys("hball"));
// 获取所有的values
System.out.println(cacheManager.getValues("hball"));
}
// @Test
// public void test(){
// Jedis jedis = new Jedis("121.40.158.114",6379);
// jedis.set("11","222");
// jedis.expire("11",5);
// System.out.println(jedis.get("11"));
// }
//
// @Test
// public void test2(){
// Jedis jedis = new Jedis("121.40.158.114",6379);
// System.out.println(jedis.get("11"));
// }
}
输出结果为:
1338823963
============= Basic1 ==========================
OK
false
true
WangSheng
============= Basic 2 ==========================
WangSheng
wang sheng
wang shengLily
============= Basic 3 ==========================
WangSheng-Lily
null
============= Basic 4 ==========================
wang sheng
============= Basic 5 ==========================
ang
[wang sheng, Jordan]
============= Basic 6 ==========================
[null, null]
1338823963
========================= Set ====================
OK
true
false
[Maddie, Jordan, Yao, AI]
1
Jordan
[Maddie, AI]
[Jordan]
[Jordan, Maddie, Ronaldo, Rivaldo, Cristiano Ronaldo, Yao, Ronaldinho, AI]
[AI, Yao, Maddie]
1338823963
============= hash ==========================
OK
false
true
Chicago
[Chicago, Houston]
1
[Jordan, AI, Maddie]
[Chicago, Houston, Philadelphia]
1338823963
============= list1 ==========================
OK
4
[Yao, AI, Maddie, Jordan]
[Yao, AI, Maddie, Jordan]
============= list2 ==========================
[Yao, Allen Iversen, Maddie, Jordan]
Maddie
1
[Allen Iversen, Maddie, Jordan]
OK
[Allen Iversen, Maddie]
Allen Iversen
存在redis数据库的数据你可以通过redis-cli.exe来进行查看: