优化oush

common/src/main/java/com/wecloud/im/ws/sender/PushTask.java

@@ -55,6 +55,9 @@ public class PushTask {
      */
     private static final String PUSH_BODY = "Click to view";
 
+    private static final String title = "title";
+    private static final String subTitle = "subTitle";
+
     /**
      * 异步系统推送
      *
@@ -70,8 +73,8 @@ public class PushTask {
             pushModel.setTitle(PUSH_TITLE);
             pushModel.setSubTitle(PUSH_BODY);
         } else {
-            pushModel.setTitle(pushMap.get("title"));
-            pushModel.setSubTitle(pushMap.get("subTitle"));
+            pushModel.setTitle(pushMap.get(title));
+            pushModel.setSubTitle(pushMap.get(subTitle));
         }
 
         // 校验参数