diff --git a/iot-data/iot-data-cache/src/main/java/cc/iotkit/data/service/DeviceInfoDataCache.java b/iot-data/iot-data-cache/src/main/java/cc/iotkit/data/service/DeviceInfoDataCache.java
index 8201238a..6cef5fab 100755
--- a/iot-data/iot-data-cache/src/main/java/cc/iotkit/data/service/DeviceInfoDataCache.java
+++ b/iot-data/iot-data-cache/src/main/java/cc/iotkit/data/service/DeviceInfoDataCache.java
@@ -103,15 +103,13 @@ public class DeviceInfoDataCache implements IDeviceInfoData, SmartInitializingSi
     @Override
     @Cacheable(value = Constants.CACHE_DEVICE_INFO, key = "#root.method.name+#deviceId", unless = "#result == null")
     public DeviceInfo findByDeviceId(String deviceId) {
-        //不需要查数据库，在数据变更时更新到缓存
-        return null;
+        return deviceInfoData.findByDeviceId(deviceId);
     }
 
     @Override
     @Cacheable(value = Constants.CACHE_DEVICE_INFO, key = "#root.method.name+#productKey+#deviceName", unless = "#result == null")
     public DeviceInfo findByProductKeyAndDeviceName(String productKey, String deviceName) {
-        //不需要查数据库，在数据变更时更新到缓存
-        return null;
+        return deviceInfoData.findByProductKeyAndDeviceName(productKey, deviceName);
     }
 
     @Override
diff --git a/iot-rule-engine/src/main/java/cc/iotkit/ruleengine/rule/RuleMessageHandler.java b/iot-rule-engine/src/main/java/cc/iotkit/ruleengine/rule/RuleMessageHandler.java
index e32e87a2..003ae265 100755
--- a/iot-rule-engine/src/main/java/cc/iotkit/ruleengine/rule/RuleMessageHandler.java
+++ b/iot-rule-engine/src/main/java/cc/iotkit/ruleengine/rule/RuleMessageHandler.java
@@ -21,7 +21,7 @@ import java.util.*;
 @Component
 public class RuleMessageHandler implements DeviceMessageHandler {
 
-    private Map<String, List<Rule>> deviceRuleMap = new HashMap<>();
+    private final Map<String, List<Rule>> deviceRuleMap = new HashMap<>();
 
     @Autowired
     private RuleExecutor ruleExecutor;
diff --git a/iot-standalone/.DS_Store b/iot-standalone/.DS_Store
index 3a821f73..43bda51d 100755
Binary files a/iot-standalone/.DS_Store and b/iot-standalone/.DS_Store differ
diff --git a/iot-test-tool/iot-test-mqtt/src/main/java/cc/iotkit/test/mqtt/performance/ConnectionTest.java b/iot-test-tool/iot-test-mqtt/src/main/java/cc/iotkit/test/mqtt/performance/ConnectionTest.java
index b2cb5a44..0be221a2 100755
--- a/iot-test-tool/iot-test-mqtt/src/main/java/cc/iotkit/test/mqtt/performance/ConnectionTest.java
+++ b/iot-test-tool/iot-test-mqtt/src/main/java/cc/iotkit/test/mqtt/performance/ConnectionTest.java
@@ -33,7 +33,7 @@ public class ConnectionTest {
             Mqtt.brokerHost = args[0];
         }
 
-        int total = 1000;
+        int total = 100;
         if (args.length > 1) {
             total = Integer.parseInt(args[1]);
         }
@@ -44,7 +44,7 @@ public class ConnectionTest {
             executor.submit(() -> {
                 log.info("start gateway " + (finalI + 1));
                 Gateway gateway = new Gateway("hbtgIA0SuVw9lxjB",
-                        "TEST:GW:" + StringUtils.leftPad(finalI + "", 6, "0"));
+                        "TEST:GW:T" + StringUtils.leftPad(finalI + "", 6, "0"));
 
 //                gateway.addSubDevice("Rf4QSjbm65X45753",
 //                        "TEST_SW_" + StringUtils.leftPad(finalI + "", 6, "0"),
diff --git a/iot-test-tool/iot-test-mqtt/src/main/java/cc/iotkit/test/mqtt/service/Gateway.java b/iot-test-tool/iot-test-mqtt/src/main/java/cc/iotkit/test/mqtt/service/Gateway.java
index 44478be0..751fa3eb 100755
--- a/iot-test-tool/iot-test-mqtt/src/main/java/cc/iotkit/test/mqtt/service/Gateway.java
+++ b/iot-test-tool/iot-test-mqtt/src/main/java/cc/iotkit/test/mqtt/service/Gateway.java
@@ -30,6 +30,9 @@ import java.util.ArrayList;
 import java.util.List;
 import java.util.UUID;
 import java.util.concurrent.CountDownLatch;
+import java.util.concurrent.Executors;
+import java.util.concurrent.ScheduledExecutorService;
+import java.util.concurrent.TimeUnit;
 import java.util.function.Consumer;
 
 @Slf4j
@@ -43,15 +46,31 @@ public class Gateway extends Device {
 
     private MqttClient client;
 
+    private boolean isConnecting;
+
     public Gateway(String productKey, String deviceName) {
         super(productKey, deviceName, "GW01");
     }
 
     @SneakyThrows
     public void start() {
+        ScheduledExecutorService executorService = Executors.newScheduledThreadPool(1);
+        executorService.scheduleAtFixedRate(this::connect, 0, 3, TimeUnit.SECONDS);
+    }
+
+    private void connect() {
+        if (client != null && client.isConnected()) {
+            return;
+        }
+
+        if(isConnecting){
+            return;
+        }
+
         String clientId = String.format("%s_%s_%s", productKey, deviceName, getModel());
 
         try {
+            isConnecting = true;
             MqttClientOptions options = new MqttClientOptions();
             options.setUsername(this.deviceName);
             options.setPassword(DigestUtils.md5Hex(Constants.PRODUCT_SECRET + clientId));
@@ -103,11 +122,14 @@ public class Gateway extends Device {
             client.publishHandler(new MessageHandler(client, this, deviceOnlineListener));
 
             client.closeHandler((v) -> {
-                log.info("{} closed", deviceName);
+                log.info("{} closed,reconnecting...", deviceName);
+                client.disconnect();
             });
 
         } catch (Throwable e) {
             log.error("connect mqtt-broker error", e);
+        } finally {
+            isConnecting = false;
         }
     }