fix subscription when enable monitor (#2166)

It looks good.

Author: jasonjoo2010

dubbo-config/dubbo-config-api/src/main/java/com/alibaba/dubbo/config/AbstractInterfaceConfig.java

@@ -36,6 +36,8 @@
 import com.alibaba.dubbo.rpc.cluster.Cluster;
 import com.alibaba.dubbo.rpc.support.MockInvoker;
 
+import static com.alibaba.dubbo.common.utils.NetUtils.isInvalidLocalHost;
+
 import java.util.ArrayList;
 import java.util.HashMap;
 import java.util.List;
@@ -225,7 +227,16 @@ protected URL loadMonitor(URL registryURL) {
         if (ConfigUtils.getPid() > 0) {
             map.put(Constants.PID_KEY, String.valueOf(ConfigUtils.getPid()));
         }
+        //set ip
+        String hostToRegistry = ConfigUtils.getSystemProperty(Constants.DUBBO_IP_TO_REGISTRY);
+        if (hostToRegistry == null || hostToRegistry.length() == 0) {
+            hostToRegistry = NetUtils.getLocalHost();
+        } else if (isInvalidLocalHost(hostToRegistry)) {
+            throw new IllegalArgumentException("Specified invalid registry ip from property:" + Constants.DUBBO_IP_TO_REGISTRY + ", value:" + hostToRegistry);
+        }
+        map.put(Constants.REGISTER_IP_KEY, hostToRegistry);
         appendParameters(map, monitor);
+        appendParameters(map, application);
         String address = monitor.getAddress();
         String sysaddress = System.getProperty("dubbo.monitor.address");
         if (sysaddress != null && sysaddress.length() > 0) {