Vaadin java.lang.RuntimeException: A connector with id # is already registered!
2014-08-26 11:08
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出现"java.lang.RuntimeException: A connector with id # is already registered!"的错误原因：
1、vaadin控件不能定义为static类型
比如：private static final Label hello = new Label();
这样所导致的问题就是，一旦一个组件是附属于其当前的用户界面，而不应该被用在另一个用户界面。
2、要保证受Spring 管理的vaadin控件没有初始化多次
参考：https://vaadin.com/forum/#!/thread/4172427/4177308
1、vaadin控件不能定义为static类型
比如：private static final Label hello = new Label();
这样所导致的问题就是，一旦一个组件是附属于其当前的用户界面，而不应该被用在另一个用户界面。
2、要保证受Spring 管理的vaadin控件没有初始化多次
参考：https://vaadin.com/forum/#!/thread/4172427/4177308
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