[u]
[/u]in web.xml
<servlet>
<servlet-name>CharApplication</servlet-name>
<servlet-class>com.vaadin.terminal.gwt.server.ApplicationServlet</servlet-class>
<init-param>
<param-name>application</param-name>
<param-value>cn.aaa.MainPanel</param-value>
</init-param>
</servlet>
<servlet-mapping>
<servlet-name>CharApplication</servlet-name>
<url-pattern>/*</url-pattern>
</servlet-mapping>
I need change to
<servlet>
<servlet-name>CharApplication</servlet-name>
<servlet-class>com.vaadin.terminal.gwt.server.ApplicationServlet</servlet-class>
<init-param>
<param-name>application</param-name>
<param-value>cn.aaa.MainPanel</param-value>
</init-param>
</servlet>
<servlet-mapping>
<servlet-name>CharApplication</servlet-name>
<url-pattern>/chat/*</url-pattern>
</servlet-mapping>
but alert show
“Failed to load the widgetset: /ASYT/VAADIN/widgetsets/com.vaadin.terminal.gwt.DefaultWidgetSet/com.vaadin.terminal.gwt.DefaultWidgetSet.nocache.js”
could you help me ,thanks