添加gwteventservice作为Maven依赖项会破坏项目

Question

我有一个相当大的GWT应用程序，我想试用gwteventservice。为此，我从Maven Repository页面获取了1.2.1版本的依赖项：

<dependency>
<groupId>de.novanic.gwteventservice</groupId>
<artifactId>eventservice</artifactId>
<version>1.2.1</version>
</dependency>

在将它添加到我的pom.xml中，更新Maven依赖项并对我的项目进行干净的构建之后，突然出现了一大堆编译器错误
我从Eclipse中的"问题"选项卡复制了相关消息(每行都是一个单独的条目)：

The method setCellStyleNames(String) is undefined for the type Column<T,capture#5-of ?>
The constructor SimplePager(SimplePager.TextLocation, boolean, int, boolean) is undefined
com.google.gwt.cell.client.Cell.Context cannot be resolved to a type
com.google.gwt.cell.client.Cell.Context cannot be resolved to a type
The method getSafeUri() is undefined for the type ImageResource GameSearchTable.java
The method getSafeUri() is undefined for the type ImageResource GameSearchTable.java
The method getSafeUri() is undefined for the type ImageResource GameSearchTable.java
The method getSafeUri() is undefined for the type ImageResource GameSearchTable.java
The method getSafeUri() is undefined for the type ImageResource GameSearchTable.java
The method setSortable(boolean) is undefined for the type GameSearchTable.RatingColumn
The method setSortable(boolean) is undefined for the type GameSearchTable.StatusColumn
The method setSortable(boolean) is undefined for the type TextColumn<GameDTO>
The method setSortable(boolean) is undefined for the type TextColumn<GameDTO>
The type GameSearchTable.RatingCell must implement the inherited abstract method AbstractCell<GameDTO>.render(GameDTO, Object, SafeHtmlBuilder)
The type GameSearchTable.StatusCell must implement the inherited abstract method AbstractCell<GameDTO>.render(GameDTO, Object, SafeHtmlBuilder)
com.google.gwt.cell.client.Cell.Context cannot be resolved to a type
com.google.gwt.cell.client.Cell.Context cannot be resolved to a type
The method getSafeUri() is undefined for the type ImageResource
The method getSafeUri() is undefined for the type ImageResource
The method getSafeUri() is undefined for the type ImageResource
The method getSafeUri() is undefined for the type ImageResource
The method getSafeUri() is undefined for the type ImageResource
The method setSortable(boolean) is undefined for the type GameTable.RatingColumn
The method setSortable(boolean) is undefined for the type GameTable.StatusColumn
The method setSortable(boolean) is undefined for the type TextColumn<GameDTO>
The type GameTable.RatingCell must implement the inherited abstract method AbstractCell<GameDTO>.render(GameDTO, Object, SafeHtmlBuilder)
The type GameTable.StatusCell must implement the inherited abstract method AbstractCell<GameDTO>.render(GameDTO, Object, SafeHtmlBuilder)
The constructor ActivityManager(ActivityMapper, EventBus) is undefined
The method register(com.google.gwt.place.shared.PlaceController, com.google.gwt.event.shared.EventBus, com.google.gwt.place.shared.Place) in the type PlaceHistoryHandler is not applicable for the arguments (com.google.gwt.place.shared.PlaceController, com.google.web.bindery.event.shared.EventBus, com.google.gwt.place.shared.Place)
The constructor PlaceController(EventBus) is undefined
com.google.gwt.cell.client.Cell.Context cannot be resolved to a type
com.google.gwt.cell.client.Cell.Context cannot be resolved to a type
com.google.gwt.cell.client.Cell.Context cannot be resolved to a type
Context cannot be resolved to a type
Context cannot be resolved to a type
The method getSafeUri() is undefined for the type ImageResource
The method getSafeUri() is undefined for the type ImageResource
The method getSafeUri() is undefined for the type ImageResource
The method getSafeUri() is undefined for the type ImageResource
The method getSafeUri() is undefined for the type ImageResource
The method setSortable(boolean) is undefined for the type PlatformTable.ProgressBarColumn
The method setSortable(boolean) is undefined for the type PlatformTable.RatingColumn
The method setSortable(boolean) is undefined for the type PlatformTable.StatusColumn
The method setSortable(boolean) is undefined for the type TextColumn<PlatformDTO>
The type PlatformTable.ProgressBarCell must implement the inherited abstract method AbstractCell<PlatformDTO>.render(PlatformDTO, Object, SafeHtmlBuilder)
The type PlatformTable.RatingCell must implement the inherited abstract method AbstractCell<PlatformDTO>.render(PlatformDTO, Object, SafeHtmlBuilder)
The type PlatformTable.StatusCell must implement the inherited abstract method AbstractCell<PlatformDTO>.render(PlatformDTO, Object, SafeHtmlBuilder)
The method setWidget(int, int, Widget) in the type HTMLTable is not applicable for the arguments (int, int, IsWidget)
The method setWidget(int, int, Widget) in the type HTMLTable is not applicable for the arguments (int, int, IsWidget)

有趣的是，这些仅显示在代码的客户端上。在没有添加依赖项的情况下，我的应用程序编译得很好。

我的环境：

• Java 1.7.0_55
• GWT 2.6.0
• Maven 3.3.1

到目前为止我尝试过但没有成功的东西：

• 在我的pom.xml中使用gwteventservice的早期版本(1.2.0)
• Eclipse建议Quick Fix将gwt-user.jar添加到我的构建路径中
• 将依赖项gwt-user添加到我的pom.xml
• 将相关的外部jar直接添加到我的构建路径中(这是唯一有效的方法，但我真的不喜欢这个解决方案……我宁愿把所有东西都放在pom.xml中)

所以问题是：

• 为什么添加依赖项会破坏我的项目和
• 我该怎么解决这个问题

如果没有其他帮助，我可能会转而研究gwt-comet。

Answer 1

尝试排除从事件服务传递继承的依赖关系。

<dependencies>
....
<dependency>
<groupId>de.novanic.gwteventservice</groupId>
<artifactId>eventservice</artifactId>
<version>1.2.1</version>
<exclusions>
<exclusion>
<artifactId>gwt-servlet</artifactId>
<groupId>com.google.gwt</groupId>
</exclusion>
<exclusion>
<artifactId>gwt-user</artifactId>
<groupId>com.google.gwt</groupId>
</exclusion>
</exclusion>
</dependency>
<dependency>
<artifactId>gwt-user</artifactId>
<groupId>com.google.gwt</groupId>
<version>2.6.0</version>
</dependency>
<dependency>
<artifactId>gwt-servlet</artifactId>
<groupId>com.google.gwt</groupId>
<version>2.6.0</version>
</dependency>
....
</dependencies>

但是，您需要为它们提供依赖关系(即使您不需要它们)，而eventservice将查找它们。

Answer 2

gwteventservice依赖于gwt 2.1.0，如您所见。我认为您不能将它与GWT2.6.0一起使用。