fixbug

@@ -19,20 +19,24 @@ public class RedisLock {
 
     private static final Long RELEASE_SUCCESS = 1L;
 
+    private static final String ACQUIRE_SUCCESS = "OK";
+    private static final String SET_IF_NOT_EXIST = "NX";
+    private static final String SET_WITH_EXPIRE_TIME = "PX";
+
     @Redis("gwNoSyncRedis")
     private YHRedisTemplate redis;
 
     @Redis("gwNoSyncRedis")
     private YHValueOperations valueOperations;
 
-    public boolean acquire(RedisKeyBuilder key, String value, final long timeout, final TimeUnit unit) {
+    public boolean acquire(RedisKeyBuilder keyBuilder, String value, final long timeout, final TimeUnit unit) {
         try {
-            String redisLockValue = valueOperations.get(key);
-            if (StringUtils.isNoneBlank(redisLockValue)) {
-                return false;
-            }
-            valueOperations.set(key, value, timeout, unit);
-            return true;
+            String script = "return redis.call('set', KEYS[1],ARGV[1],ARGV[2],ARGV[3],ARGV[4])";
+            RedisScript<String> redisScript = new DefaultRedisScript(script, Long.class);
+            String key = keyBuilder.getKey();
+            String result = redis.getStringRedisTemplate().execute(redisScript, Lists.newArrayList(key),
+                    value, SET_IF_NOT_EXIST, SET_WITH_EXPIRE_TIME, unit.toMillis(timeout));
+            return ACQUIRE_SUCCESS.equals(result);
         } catch (Exception e) {
             return false;
         }