Merge branch 'zx_saas_0906' of http://git.dayaedu.com/yonge/mec into dev

mec-im/src/main/java/com/ym/controller/PrivateController.java

@@ -117,7 +117,7 @@ public class PrivateController {
                 }
             }
         }
-        Boolean ret = imPluginContext.getPluginService().sendPrivateMessage(build);
+        String ret = imPluginContext.getPluginService().sendPrivateMessage(build);
         log.info("privateMessage send ret:{}, service={}, content={}", ret, imPluginContext.defaultService(), JSON.toJSONString(build));
 
         return true;