!9 RedisCache中所有方法参数添加final，并优化list取出效率，添加其它常用redis方法

Merge pull request !9 from 心悦李国楠/dev-心悦

ruoyi-common/ruoyi-common-redis/src/main/java/com/ruoyi/common/redis/service/RedisService.java

 package com.ruoyi.common.redis.service;
 
-import java.util.ArrayList;
 import java.util.Collection;
-import java.util.HashSet;
-import java.util.Iterator;
 import java.util.List;
 import java.util.Map;
 import java.util.Set;
 import java.util.concurrent.TimeUnit;
 import org.springframework.beans.factory.annotation.Autowired;
-import org.springframework.data.redis.core.BoundSetOperations;
 import org.springframework.data.redis.core.HashOperations;
-import org.springframework.data.redis.core.ListOperations;
 import org.springframework.data.redis.core.RedisTemplate;
 import org.springframework.data.redis.core.ValueOperations;
 import org.springframework.stereotype.Component;
@@ -33,13 +28,10 @@ public class RedisService
      *
      * @param key 缓存的键值
      * @param value 缓存的值
-     * @return 缓存的对象
      */
-    public <T> ValueOperations<String, T> setCacheObject(String key, T value)
+    public <T> void setCacheObject(final String key, final T value)
     {
-        ValueOperations<String, T> operation = redisTemplate.opsForValue();
-        operation.set(key, value);
-        return operation;
+        redisTemplate.opsForValue().set(key, value);
     }
 
     /**
@@ -49,13 +41,35 @@ public class RedisService
      * @param value 缓存的值
      * @param timeout 时间
      * @param timeUnit 时间颗粒度
-     * @return 缓存的对象
      */
-    public <T> ValueOperations<String, T> setCacheObject(String key, T value, Integer timeout, TimeUnit timeUnit)
+    public <T> void setCacheObject(final String key, final T value, final Integer timeout, final TimeUnit timeUnit)
     {
-        ValueOperations<String, T> operation = redisTemplate.opsForValue();
-        operation.set(key, value, timeout, timeUnit);
-        return operation;
+        redisTemplate.opsForValue().set(key, value, timeout, timeUnit);
+    }
+
+    /**
+     * 设置有效时间
+     *
+     * @param key Redis键
+     * @param timeout 超时时间
+     * @return true=设置成功；false=设置失败
+     */
+    public boolean expire(final String key, final long timeout)
+    {
+        return expire(key, timeout, TimeUnit.SECONDS);
+    }
+
+    /**
+     * 设置有效时间
+     *
+     * @param key Redis键
+     * @param timeout 超时时间
+     * @param unit 时间单位
+     * @return true=设置成功；false=设置失败
+     */
+    public boolean expire(final String key, final long timeout, final TimeUnit unit)
+    {
+        return redisTemplate.expire(key, timeout, unit);
     }
 
     /**
@@ -64,7 +78,7 @@ public class RedisService
      * @param key 缓存键值
      * @return 缓存键值对应的数据
      */
-    public <T> T getCacheObject(String key)
+    public <T> T getCacheObject(final String key)
     {
         ValueOperations<String, T> operation = redisTemplate.opsForValue();
         return operation.get(key);
@@ -75,40 +89,33 @@ public class RedisService
      *
      * @param key
      */
-    public void deleteObject(String key)
+    public boolean deleteObject(final String key)
     {
-        redisTemplate.delete(key);
+        return redisTemplate.delete(key);
     }
 
     /**
      * 删除集合对象
      *
-     * @param collection
+     * @param collection 多个对象
+     * @return
      */
-    public void deleteObject(Collection collection)
+    public long deleteObject(final Collection collection)
     {
-        redisTemplate.delete(collection);
+        return redisTemplate.delete(collection);
     }
 
     /**
      * 缓存List数据
      *
      * @param key 缓存的键值
-     * @param dataList 待缓存的List数据
+     * @param values 待缓存的List数据
      * @return 缓存的对象
      */
-    public <T> ListOperations<String, T> setCacheList(String key, List<T> dataList)
+    public <T> long setCacheList(final String key, final List<T> dataList)
     {
-        ListOperations listOperation = redisTemplate.opsForList();
-        if (null != dataList)
-        {
-            int size = dataList.size();
-            for (int i = 0; i < size; i++)
-            {
-                listOperation.leftPush(key, dataList.get(i));
-            }
-        }
-        return listOperation;
+        Long count = redisTemplate.opsForList().rightPushAll(key, dataList);
+        return count == null ? 0 : count;
     }
 
     /**
@@ -117,17 +124,9 @@ public class RedisService
      * @param key 缓存的键值
      * @return 缓存键值对应的数据
      */
-    public <T> List<T> getCacheList(String key)
+    public <T> List<T> getCacheList(final String key)
     {
-        List<T> dataList = new ArrayList<T>();
-        ListOperations<String, T> listOperation = redisTemplate.opsForList();
-        Long size = listOperation.size(key);
-
-        for (int i = 0; i < size; i++)
-        {
-            dataList.add(listOperation.index(key, i));
-        }
-        return dataList;
+        return redisTemplate.opsForList().range(key, 0, -1);
     }
 
     /**
@@ -137,15 +136,10 @@ public class RedisService
      * @param dataSet 缓存的数据
      * @return 缓存数据的对象
      */
-    public <T> BoundSetOperations<String, T> setCacheSet(String key, Set<T> dataSet)
+    public <T> long setCacheSet(final String key, final Set<T> dataSet)
     {
-        BoundSetOperations<String, T> setOperation = redisTemplate.boundSetOps(key);
-        Iterator<T> it = dataSet.iterator();
-        while (it.hasNext())
-        {
-            setOperation.add(it.next());
-        }
-        return setOperation;
+        Long count = redisTemplate.opsForSet().add(key, dataSet);
+        return count == null ? 0 : count;
     }
 
     /**
@@ -154,12 +148,9 @@ public class RedisService
      * @param key
      * @return
      */
-    public <T> Set<T> getCacheSet(String key)
+    public <T> Set<T> getCacheSet(final String key)
     {
-        Set<T> dataSet = new HashSet<T>();
-        BoundSetOperations<String, T> operation = redisTemplate.boundSetOps(key);
-        dataSet = operation.members();
-        return dataSet;
+        return redisTemplate.opsForSet().members(key);
     }
 
     /**
@@ -167,19 +158,12 @@ public class RedisService
      *
      * @param key
      * @param dataMap
-     * @return
      */
-    public <T> HashOperations<String, String, T> setCacheMap(String key, Map<String, T> dataMap)
+    public <T> void setCacheMap(final String key, final Map<String, T> dataMap)
     {
-        HashOperations hashOperations = redisTemplate.opsForHash();
-        if (null != dataMap)
-        {
-            for (Map.Entry<String, T> entry : dataMap.entrySet())
-            {
-                hashOperations.put(key, entry.getKey(), entry.getValue());
-            }
+        if (dataMap != null) {
+            redisTemplate.opsForHash().putAll(key, dataMap);
         }
-        return hashOperations;
     }
 
     /**
@@ -188,10 +172,46 @@ public class RedisService
      * @param key
      * @return
      */
-    public <T> Map<String, T> getCacheMap(String key)
+    public <T> Map<String, T> getCacheMap(final String key)
+    {
+        return redisTemplate.opsForHash().entries(key);
+    }
+
+    /**
+     * 往Hash中存入数据
+     *
+     * @param key Redis键
+     * @param hKey Hash键
+     * @param value 值
+     */
+    public <T> void setCacheMapValue(final String key, final String hKey, final T value)
+    {
+        redisTemplate.opsForHash().put(key, hKey, value);
+    }
+
+    /**
+     * 获取Hash中的数据
+     *
+     * @param key Redis键
+     * @param hKey Hash键
+     * @return Hash中的对象
+     */
+    public <T> T getCacheMapValue(final String key, final String hKey)
+    {
+        HashOperations<String, String, T> opsForHash = redisTemplate.opsForHash();
+        return opsForHash.get(key, hKey);
+    }
+
+    /**
+     * 获取多个Hash中的数据
+     *
+     * @param key Redis键
+     * @param hKeys Hash键集合
+     * @return Hash对象集合
+     */
+    public <T> List<T> getMultiCacheMapValue(final String key, final Collection<Object> hKeys)
     {
-        Map<String, T> map = redisTemplate.opsForHash().entries(key);
-        return map;
+        return redisTemplate.opsForHash().multiGet(key, hKeys);
     }
 
     /**
@@ -200,7 +220,7 @@ public class RedisService
      * @param pattern 字符串前缀
      * @return 对象列表
      */
-    public Collection<String> keys(String pattern)
+    public Collection<String> keys(final String pattern)
     {
         return redisTemplate.keys(pattern);
     }