参数管理支持缓存操作

ruoyi-common/src/main/java/com/ruoyi/common/constant/Constants.java

@@ -57,6 +57,16 @@ public class Constants
      */
     public static final String IS_ASC = "isAsc";
 
+    /**
+     * 参数管理 cache name
+     */
+    public static final String SYS_CONFIG_CACHE = "sys-config";
+
+    /**
+     * 参数管理 cache key
+     */
+    public static final String SYS_CONFIG_KEY = "sys_config:";
+
     /**
      * 资源映射路径 前缀
      */

ruoyi-common/src/main/java/com/ruoyi/common/utils/CacheUtils.java

@@ -0,0 +1,187 @@
+package com.ruoyi.common.utils;
+
+import java.util.Iterator;
+import java.util.Set;
+import org.apache.shiro.cache.Cache;
+import org.apache.shiro.cache.CacheManager;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+import com.ruoyi.common.utils.spring.SpringUtils;
+
+/**
+ * Cache工具类
+ * 
+ * @author ruoyi
+ */
+public class CacheUtils
+{
+    private static Logger logger = LoggerFactory.getLogger(CacheUtils.class);
+
+    private static CacheManager cacheManager = SpringUtils.getBean(CacheManager.class);
+
+    private static final String SYS_CACHE = "sys-cache";
+
+    /**
+     * 获取SYS_CACHE缓存
+     * 
+     * @param key
+     * @return
+     */
+    public static Object get(String key)
+    {
+        return get(SYS_CACHE, key);
+    }
+
+    /**
+     * 获取SYS_CACHE缓存
+     * 
+     * @param key
+     * @param defaultValue
+     * @return
+     */
+    public static Object get(String key, Object defaultValue)
+    {
+        Object value = get(key);
+        return value != null ? value : defaultValue;
+    }
+
+    /**
+     * 写入SYS_CACHE缓存
+     * 
+     * @param key
+     * @return
+     */
+    public static void put(String key, Object value)
+    {
+        put(SYS_CACHE, key, value);
+    }
+
+    /**
+     * 从SYS_CACHE缓存中移除
+     * 
+     * @param key
+     * @return
+     */
+    public static void remove(String key)
+    {
+        remove(SYS_CACHE, key);
+    }
+
+    /**
+     * 获取缓存
+     * 
+     * @param cacheName
+     * @param key
+     * @return
+     */
+    public static Object get(String cacheName, String key)
+    {
+        return getCache(cacheName).get(getKey(key));
+    }
+
+    /**
+     * 获取缓存
+     * 
+     * @param cacheName
+     * @param key
+     * @param defaultValue
+     * @return
+     */
+    public static Object get(String cacheName, String key, Object defaultValue)
+    {
+        Object value = get(cacheName, getKey(key));
+        return value != null ? value : defaultValue;
+    }
+
+    /**
+     * 写入缓存
+     * 
+     * @param cacheName
+     * @param key
+     * @param value
+     */
+    public static void put(String cacheName, String key, Object value)
+    {
+        getCache(cacheName).put(getKey(key), value);
+    }
+
+    /**
+     * 从缓存中移除
+     * 
+     * @param cacheName
+     * @param key
+     */
+    public static void remove(String cacheName, String key)
+    {
+        getCache(cacheName).remove(getKey(key));
+    }
+
+    /**
+     * 从缓存中移除所有
+     * 
+     * @param cacheName
+     */
+    public static void removeAll(String cacheName)
+    {
+        Cache<String, Object> cache = getCache(cacheName);
+        Set<String> keys = cache.keys();
+        for (Iterator<String> it = keys.iterator(); it.hasNext();)
+        {
+            cache.remove(it.next());
+        }
+        logger.info("清理缓存： {} => {}", cacheName, keys);
+    }
+
+    /**
+     * 从缓存中移除指定key
+     * 
+     * @param keys
+     */
+    public static void removeByKeys(Set<String> keys)
+    {
+        removeByKeys(SYS_CACHE, keys);
+    }
+
+    /**
+     * 从缓存中移除指定key
+     * 
+     * @param cacheName
+     * @param keys
+     */
+    public static void removeByKeys(String cacheName, Set<String> keys)
+    {
+        for (Iterator<String> it = keys.iterator(); it.hasNext();)
+        {
+            remove(it.next());
+        }
+        logger.info("清理缓存： {} => {}", cacheName, keys);
+    }
+
+    /**
+     * 获取缓存键名
+     * 
+     * @param key
+     * @return
+     */
+    private static String getKey(String key)
+    {
+        return key;
+    }
+
+    /**
+     * 获得一个Cache，没有则显示日志。
+     * 
+     * @param cacheName
+     * @return
+     */
+    private static Cache<String, Object> getCache(String cacheName)
+    {
+        Cache<String, Object> cache = cacheManager.getCache(cacheName);
+        if (cache == null)
+        {
+            throw new RuntimeException("当前系统中没有定义“" + cacheName + "”这个缓存。");
+        }
+        return cache;
+    }
+
+}