blocks|key|231645|text|这取决于你所说的“兼容”是什么意思，也取决于你所使用的GAE插件的特性。我们使用appengine、maven插件、http://code.google.com/p/maven-gae-plugin/和eclipse，它们似乎可以很好地协同工作，但我们没有使用GWT或JDO。与大多数maven/eclipse一样，我发现最好从命令行运行您的程序，并且只使用eclipse作为编辑器。|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|231646|entityMap|0|LINK|mutability|MUTABLE|url|http://code.google.com/p/maven-gae-plugin/^0|1M|16|0|0^^$0|@$1|2|3|4|5|6|7|L|8|@]|9|@$A|M|B|N|1|O]]|C|$]]|$1|D|3|-4|5|6|7|P|8|@]|9|@]|C|$]]]|E|$F|$5|G|H|I|C|$J|K]]]]

Depends on what you mean by "compatible" and it depends on what features you're using of GAE plugin. We use the appengine maven plugin <a href="http://code.google.com/p/maven-gae-plugin/" rel="noreferrer">http://code.google.com/p/maven-gae-plugin/</a> and eclipse and they seem to work fine together but we're not using GWT or JDO. As with most things maven/eclipse I find it's best to run your stuff from the command line and just use eclipse as an editor.

blocks|key|234139|text|Rick的答案是%2B1，但我想补充一下：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|234140|谷歌有一个关于这方面的教程：http://code.google.com/p/google-web-toolkit/wiki/WorkingWithMaven|offset|length|234141|也就是说，我们从来没有让它100%25地工作。maven-gwt-plugin似乎与Eclipse有问题，如果你由于APT而使用RequestFactory，情况会变得更糟。maven-gae-plugin看起来玩得很好。从cmdline运行更容易。此外，在Eclipse3.7/M2E中有一个已知的错误引用，它阻止了许多事情的正常工作。|style|CODE|234142|entityMap|0|LINK|mutability|MUTABLE|url|http://code.google.com/p/google-web-toolkit/wiki/WorkingWithMaven^0|0|E|1T|0|0|L|G|2D|G|0^^$0|@$1|2|3|4|5|6|7|R|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|S|8|@]|9|@$D|T|E|U|1|V]]|A|$]]|$1|F|3|G|5|6|7|W|8|@$D|X|E|Y|H|I]|$D|Z|E|10|H|I]]|9|@]|A|$]]|$1|J|3|-4|5|6|7|11|8|@]|9|@]|A|$]]]|K|$L|$5|M|N|O|A|$P|Q]]]]

+1 to Rick's answer, but I'd like to add this:

Google has a tutorial on this: <a href="http://code.google.com/p/google-web-toolkit/wiki/WorkingWithMaven" rel="nofollow">http://code.google.com/p/google-web-toolkit/wiki/WorkingWithMaven</a>

That said, we have never gotten it to work 100%. The <code>maven-gwt-plugin</code> seems to have problems with Eclipse, and it gets worse if you're using RequestFactory due to APT. <code>maven-gae-plugin</code> seems to play nicely. Running from cmdline is much easier. Further, there's a known bug[citation needed] in Eclipse 3.7/m2e that prevents a lot of things from working correctly.

blocks|key|231653|text|我使用maven和GAE在JDO上已经有一年了，没有任何问题。以下是我在MacOSX雪豹上的配置：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|231654|231655|ApacheMaven3.0.3+|unordered-list-item|231656|Eclipse版本:+3.7.1|231657|m2e+-适用于Eclipse+Maven的集成|231658|231659|将Eclipse与Maven完全集成(从命令行"mvn+test“和Eclipse内部的JUnit界面运行所有测试)的一个重要方面是以这种方式拥有.project文件：|231660|<?xml+version="1.0"+encoding="UTF-8"?>
<projectDescription>
++++<name>PROJECT_NAME</name>
++++<comment></comment>
++++<projects>
++++</projects>
++++<buildSpec>
++++++++<buildCommand>
++++++++++++<name>org.eclipse.jdt.core.javabuilder</name>
++++++++++++<arguments>
++++++++++++</arguments>
++++++++</buildCommand>
++++++++<buildCommand>
++++++++++++<name>org.eclipse.m2e.core.maven2Builder</name>
++++++++++++<arguments>
++++++++++++</arguments>
++++++++</buildCommand>
++++</buildSpec>
++++<natures>
++++++++<nature>org.eclipse.m2e.core.maven2Nature</nature>
++++++++<nature>org.eclipse.jdt.core.javanature</nature>
++++</natures>
</projectDescription>|code-block|syntax|javascript|231661|插件已经移到了这里：https://github.com/maven-gae-plugin/maven-gae-plugin|offset|length|231662|entityMap|0|LINK|mutability|MUTABLE|url|https://github.com/maven-gae-plugin/maven-gae-plugin^0|0|0|0|0|0|0|0|0|A|1G|0|0^^$0|@$1|2|3|4|5|6|7|13|8|@]|9|@]|A|$]]|$1|B|3|-4|5|6|7|14|8|@]|9|@]|A|$]]|$1|C|3|D|5|E|7|15|8|@]|9|@]|A|$]]|$1|F|3|G|5|E|7|16|8|@]|9|@]|A|$]]|$1|H|3|I|5|E|7|17|8|@]|9|@]|A|$]]|$1|J|3|-4|5|6|7|18|8|@]|9|@]|A|$]]|$1|K|3|L|5|6|7|19|8|@]|9|@]|A|$]]|$1|M|3|N|5|O|7|1A|8|@]|9|@]|A|$P|Q]]|$1|R|3|S|5|6|7|1B|8|@]|9|@$T|1C|U|1D|1|1E]]|A|$]]|$1|V|3|-4|5|6|7|1F|8|@]|9|@]|A|$]]]|W|$X|$5|Y|Z|10|A|$11|12]]]]

I use maven and GAE since one year with JDO with no problems.
Here is my configuration on MacOSX Snow Leopard: 

<ul>
<li>Apache Maven 3.0.3 </li>
<li>Eclipse Version: 3.7.1</li>
<li>m2e - Maven Integration for Eclipse 1.0.100.20110804-1717</li>
</ul>

An important thing to have fully integrated Eclipse with Maven (run all the tests both from command line "mvn test" and from JUnit interface inside Eclipse) is to have the .project file in this way:

<pre><code>&lt;?xml version="1.0" encoding="UTF-8"?&gt;
&lt;projectDescription&gt;
 &lt;name&gt;PROJECT_NAME&lt;/name&gt;
 &lt;comment&gt;&lt;/comment&gt;
 &lt;projects&gt;
 &lt;/projects&gt;
 &lt;buildSpec&gt;
 &lt;buildCommand&gt;
 &lt;name&gt;org.eclipse.jdt.core.javabuilder&lt;/name&gt;
 &lt;arguments&gt;
 &lt;/arguments&gt;
 &lt;/buildCommand&gt;
 &lt;buildCommand&gt;
 &lt;name&gt;org.eclipse.m2e.core.maven2Builder&lt;/name&gt;
 &lt;arguments&gt;
 &lt;/arguments&gt;
 &lt;/buildCommand&gt;
 &lt;/buildSpec&gt;
 &lt;natures&gt;
 &lt;nature&gt;org.eclipse.m2e.core.maven2Nature&lt;/nature&gt;
 &lt;nature&gt;org.eclipse.jdt.core.javanature&lt;/nature&gt;
 &lt;/natures&gt;
&lt;/projectDescription&gt;
</code></pre>

The plugin has moved here:
<a href="https://github.com/maven-gae-plugin/maven-gae-plugin" rel="nofollow">https://github.com/maven-gae-plugin/maven-gae-plugin</a>

blocks|key|234152|text|如前所述，谷歌提供了对maven的支持：https://developers.google.com/appengine/docs/java/tools/maven|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|234153|但是看起来它并不能与Eclipse完全兼容(正如其中一条评论所提到的："SDK+location+'.m2\repository\com\google\appengine\appengine-api-1.0-sdk\1.7.2\appengine-api-‌​1.0-sdk-1.7.2.jar‘不是一个目录“)|234154|为了解决这个问题，我使用了maven-eclipse-plugin，并为GAE/JRE指定了容器：|234155|<plugin>
++++<groupId>org.apache.maven.plugins</groupId>
++++<artifactId>maven-eclipse-plugin</artifactId>
++++<version>2.9</version>
++++<configuration>
++++<classpathContainers>++++++++++++++
<classpathContainer>org.eclipse.jdt.launching.JRE_CONTAINER</classpathContainer>
<classpathContainer>com.google.appengine.eclipse.core.GAE_CONTAINER</classpathContainer>
++++</classpathContainers>
++++</configuration>
</plugin>|code-block|syntax|javascript|234156|entityMap|0|LINK|mutability|MUTABLE|url|https://developers.google.com/appengine/docs/java/tools/maven^0|K|1P|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|U|8|@]|9|@$A|V|B|W|1|X]]|C|$]]|$1|D|3|E|5|6|7|Y|8|@]|9|@]|C|$]]|$1|F|3|G|5|6|7|Z|8|@]|9|@]|C|$]]|$1|H|3|I|5|J|7|10|8|@]|9|@]|C|$K|L]]|$1|M|3|-4|5|6|7|11|8|@]|9|@]|C|$]]]|N|$O|$5|P|Q|R|C|$S|T]]]]

As mentioned google provided support for maven:
<a href="https://developers.google.com/appengine/docs/java/tools/maven" rel="nofollow">https://developers.google.com/appengine/docs/java/tools/maven</a>

But looks it doesn't work fully with Eclipse (as mentioned in one of comments: "SDK location '.m2\repository\com\google\appengine\appengine-api-1.0-sdk\1.7.2\appengine-api-‌​1.0-sdk-1.7.2.jar' is not a directory")

To resolve it I've used maven-eclipse-plugin, and specified containers for GAE/JRE:

<pre><code>&lt;plugin&gt;
 &lt;groupId&gt;org.apache.maven.plugins&lt;/groupId&gt;
 &lt;artifactId&gt;maven-eclipse-plugin&lt;/artifactId&gt;
 &lt;version&gt;2.9&lt;/version&gt;
 &lt;configuration&gt;
 &lt;classpathContainers&gt; 
&lt;classpathContainer&gt;org.eclipse.jdt.launching.JRE_CONTAINER&lt;/classpathContainer&gt;
&lt;classpathContainer&gt;com.google.appengine.eclipse.core.GAE_CONTAINER&lt;/classpathContainer&gt;
 &lt;/classpathContainers&gt;
 &lt;/configuration&gt;
&lt;/plugin&gt;
</code></pre>

blocks|key|3105649|text|我关于GAE+%2B+Maven+%2B+Eclipse.的一般发现|type|unstyled|depth|inlineStyleRanges|offset|length|style|BOLD|entityRanges|data|3105650|规则1:使用GAE原型生成您的GAE项目：https://developers.google.com/appengine/docs/java/tools/maven|3105651|规则2:如果你想用Eclipse进行开发--不要先做"mvn+eclipse:eclipse“然后导入--这会导致很多问题。改为导入为"Maven+Project“|3105652|规则3:简单/有效的解决方案如何创建YouTube+上描述的MVN/GAE/Eclipse项目|3105653|PS。我正在使用单独的Web/DAO/Domain模块进行项目工作-稍后我会发布我的发现和线索。|3105654|entityMap|0|LINK|mutability|MUTABLE|url|https://developers.google.com/appengine/docs/java/tools/maven^0|0|P|0|0|4|L|1P|0|0|0|4|0|0|4|0|0^^$0|@$1|2|3|4|5|6|7|V|8|@$9|W|A|X|B|C]]|D|@]|E|$]]|$1|F|3|G|5|6|7|Y|8|@$9|Z|A|10|B|C]]|D|@$9|11|A|12|1|13]]|E|$]]|$1|H|3|I|5|6|7|14|8|@$9|15|A|16|B|C]]|D|@]|E|$]]|$1|J|3|K|5|6|7|17|8|@$9|18|A|19|B|C]]|D|@]|E|$]]|$1|L|3|M|5|6|7|1A|8|@]|D|@]|E|$]]|$1|N|3|-4|5|6|7|1B|8|@]|D|@]|E|$]]]|O|$P|$5|Q|R|S|E|$T|U]]]]

My general findings about GAE + Maven + Eclipse.

Rule no 1: Use GAE archetype to generate your GAE project: <a href="https://developers.google.com/appengine/docs/java/tools/maven" rel="nofollow">https://developers.google.com/appengine/docs/java/tools/maven</a>

Rule no 2: If you want to develop with Eclipse - don't do "mvn eclipse:eclipse" and then import - it will cause a lot of problems. Instead import as "Maven Project"

Rule no 3: Simple / working solution how to create MVN/GAE/Eclipse project described on YouTube <a href="http://www.youtube.com/watch?v=oC6bJp5X3LI" rel="nofollow">http://www.youtube.com/watch?v=oC6bJp5X3LI</a>

PS. I'm working on project with separate Web/DAO/Domain modules - I will post later my findings and clues.

Is there a way I can have a Maven compatible Google App Engine (Java) project that is also compatible with the Google Eclipse Plugin inside Eclipse?

Thanks!

EDIT:

Native support for a Maven plugin now:

<a href="https://developers.google.com/appengine/docs/java/tools/maven" rel="noreferrer">https://developers.google.com/appengine/docs/java/tools/maven</a>

Maven + App Engine + Google Eclipse Plugin

Eclipse

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有没有一种方法可以让我的Maven兼容Google App Engine (Java)项目，同时也与Eclipse中的Google Eclipse插件兼容？谢谢!编辑：现在原生支持Maven插件：

问Maven + App Engine + Google Eclipse插件
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