java - 使用 SBT 和 Intellij 在 Scala 中编译 Widgetset 时出现 IOException

Question

我使用 vaadin-sbt-plugin (https://github.com/Gekkio/sbt-vaadin-plugin) 进行的小部件集编译正在生成以下异常:

> vaadin-compile
[info]
[info] == copy-resources ==
[info] == copy-resources ==
[info]
[info] == vaadin-compile ==
[error] Nov 29, 2011 10:09:35 PM com.vaadin.terminal.gwt.widgetsetutils.ClassPathExplorer getAvailableWidgetSets
[error] Informaþ§es: Widgetsets found from classpath:
[error]         com.vaadin.terminal.gwt.DefaultWidgetSet in jar:file:E:/Projetos/smarthome/view/lib/vaadin-6.7.2.jar!/
[error]         org.vaadin.vaadinvisualizations.widgetset.VaadinvisualizationApp
licationWidgetset in jar:file:E:/Projetos/smarthome/view/lib_managed/scala_2.9.0-1/compile/visualizationsforvaadin-1.1.2.jar!/
[error]         com.invient.vaadin.charts.widgetset.InvientChartsWidgetset in jar:file:E:/Projetos/smarthome/view/lib_managed/scala_2.9.0-1/compile/invient-charts-0.8.5.jar!/
[error]
[error] Nov 29, 2011 10:09:35 PM com.vaadin.terminal.gwt.widgetsetutils.ClassPathExplorer getAvailableWidgetSets
[error] Informaþ§es: Search took 11ms
[error] Nov 29, 2011 10:09:35 PM com.vaadin.tools.WidgetsetCompiler$1 run
[error] Grave: Widgetset compilation failed
[error] java.io.IOException: Could not create directory for the widgetset: file:
E:\Projetos\smarthome\view\lib\vaadin-6.7.2.jar!\com\vaadin\terminal\gwt
[error]         at com.vaadin.terminal.gwt.widgetsetutils.WidgetSetBuilder.updateWidgetSet(WidgetSetBuilder.java:79)
[error]         at com.vaadin.tools.WidgetsetCompiler$1.run(WidgetsetCompiler.java:76)
[error]         at java.lang.Thread.run(Unknown Source)
[error]
[info] Updating GWT module description file...
[info] Widgetset compilation finished
[info] == vaadin-compile ==
[success] Successful.
[info]
[info] Total time: 1 s, completed 29/11/2011 22:09:36

我不知道如何解决这个问题。有人可以帮助我吗？

Answer 1

我遇到了同样的问题，我执行了以下操作来解决它:

1. 从项目的类路径中删除任何小部件集描述文件 (.gwt.xml)。
2. 在类路径上的任何包中创建一个 customwidgetset.gwt.xml。确保此文件具有唯一的路径，并且不包含在您的 Maven 依赖项包含的任何 jar 中(这是问题中错误的原因)。例如: com/example/vaadinapp/widgetset/customwidgetset.gwt.xml

3. 在此文件中，输入以下内容:

   <?xml version="1.0" encoding="UTF-8"?>
   <!DOCTYPE module PUBLIC
       "-//Google Inc.//DTD Google Web Toolkit 1.7.0//EN"
       "http://google-web-toolkit.googlecode.com/svn/tags/1.7.0/distro-source/core/src/gwt-module.dtd">
   <module>
       <inherits name="org.vaadin.anaddon.AnAddonWidgetset" />
       <inherits name="org.vaadin.anotheraddon.AnotherAddonWidgetset" />
   </module>
   

   在这里您可以声明来自您正在使用的插件的小部件集。

4. 像这样更新 web.xml 文件:

   <servlet>
       <servlet-name>vaadin-frontend</servlet-name>
       <servlet-class>com.example.vaadinapp.servlet.SpringApplicationServlet</servlet-class>
       <init-param>
           <description>Application widgetset</description>
           <param-name>widgetset</param-name>
           <param-value>com.example.vaadinapp.widgetset.customwidgetset</param-value>
       </init-param>
   </servlet>
   

5. 运行mvn gwt:compile