我发现使用带有-maven开关的webApp会生成符合maven标准的项目。现在，有了这个项目，我必须执行以下步骤。
1）添加gae依赖项 2）添加jdo依赖项 3）添加app-engine配置文件 4）添加jdo配置文件
还有其他什么，我使用app引擎1.6.6和gwt 2.4。请概述确切的步骤和依赖关系。我在其他堆栈溢出问题中找到关于gae-maven插件的链接，看起来很旧，并且效果不好。
答案 0 :(得分：1)
这是我的pom.xml：我使用GAE，GWT和JDO。希望它有所帮助：
<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
<modelVersion>4.0.0</modelVersion>
<!-- The Basics -->
<groupId>YOUR COMPANY</groupId>
<artifactId>YOUR ARTIFACT</artifactId>
<version>VERSION</version>
<packaging>pom</packaging>
<dependencies>
<!-- GWT dependencies -->
<dependency>
<groupId>com.google.gwt</groupId>
<artifactId>gwt-servlet</artifactId>
<version>${gwt.version}</version>
</dependency>
<dependency>
<groupId>com.google.gwt</groupId>
<artifactId>gwt-user</artifactId>
<version>${gwt.version}</version>
<scope>provided</scope>
</dependency>
<!-- GAE libraries for local testing as described here: http://code.google.com/appengine/docs/java/howto/unittesting.html -->
<dependency>
<groupId>com.google.appengine</groupId>
<artifactId>appengine-api-labs</artifactId>
<version>${gae.version}</version>
</dependency>
<dependency>
<groupId>com.google.appengine</groupId>
<artifactId>appengine-api-stubs</artifactId>
<version>${gae.version}</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>com.google.appengine</groupId>
<artifactId>appengine-testing</artifactId>
<version>${gae.version}</version>
<scope>test</scope>
</dependency>
<!-- Google App Engine meta-package -->
<dependency>
<groupId>net.kindleit</groupId>
<artifactId>gae-runtime</artifactId>
<version>${gae.version}</version>
<type>pom</type>
<scope>compile</scope>
</dependency>
<dependency>
<groupId>javax.jdo</groupId>
<artifactId>jdo2-api</artifactId>
<version>2.3-eb</version>
<type>jar</type>
<scope>compile</scope>
</dependency>
<dependency>
<groupId>com.google.appengine</groupId>
<artifactId>appengine-api-1.0-sdk</artifactId>
<version>${gae.version}</version>
<type>jar</type>
<scope>compile</scope>
</dependency>
<dependency>
<groupId>org.apache.geronimo.specs</groupId>
<artifactId>geronimo-servlet_2.5_spec</artifactId>
<version>1.2</version>
</dependency>
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>4.7</version>
</dependency>
<dependency>
<groupId>org.slf4j</groupId>
<artifactId>slf4j-parent</artifactId>
<version>1.6.1</version>
<type>pom</type>
</dependency>
</dependencies>
<!-- Specify hard-coded project properties here -->
<properties>
<!-- GWT version -->
<gwt.version>2.4.0</gwt.version>
<!-- port defaults to 8080 -->
<gae.port>8080</gae.port>
<!-- Produce detailed JS during GWT compilation for development environment -->
<gwt.style>DETAILED</gwt.style>
<!-- Sets the project's default encoding. http://docs.codehaus.org/display/MAVENUSER/POM+Element+for+Source+File+Encoding -->
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
<project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
<!-- This is just for "eclipse:eclipse" goal to always attempt downloading
sources -->
<downloadSources>true</downloadSources>
<!-- Specify AppEngine version for your project. It should match SDK version
pointed to by ${gae.home} property (Typically, one used by your Eclipse plug-in) -->
<gae.version>1.6.6</gae.version>
<!-- Upload to http://test.latest.<applicationName>.appspot.com by default -->
<datanucleus.version>1.1.5</datanucleus.version>
<gae.plugin.version>0.9.2</gae.plugin.version>
</properties>
答案 1 :(得分：1)
它的价值，这里是一个pom我刚刚放在一起似乎工作正常wuth gae 1.7.4和GWT 2.5与JDO 3.0 -
<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>com.nimbits.cloudplatform</groupId>
<artifactId>nimbitsplatform</artifactId>
<version>1.0-SNAPSHOT</version>
<packaging>war</packaging>
<name>nimbits-02</name>
<dependencies>
<dependency>
<groupId>javax.jdo</groupId>
<artifactId>jdo-api</artifactId>
<version>3.0</version>
</dependency>
<!-- Google App Engine meta-package -->
<!--<dependency>-->
<!--<groupId>net.kindleit</groupId>-->
<!--<artifactId>gae-runtime</artifactId>-->
<!--<version>${gae.version}</version>-->
<!--<type>pom</type>-->
<!--</dependency>-->
<dependency>
<groupId>javax.transaction</groupId>
<artifactId>jta</artifactId>
<version>1.1</version>
</dependency>
<!-- GWT dependencies -->
<dependency>
<groupId>com.google.gwt</groupId>
<artifactId>gwt-servlet</artifactId>
<version>${gwt.version}</version>
</dependency>
<dependency>
<groupId>com.google.gwt</groupId>
<artifactId>gwt-user</artifactId>
<version>${gwt.version}</version>
<scope>provided</scope>
</dependency>
<!-- J2EE Servlet API. We need it to compile IndexServlet class. You can probably remove
it, if you don't explicitly use Servlets -->
<dependency>
<groupId>org.apache.geronimo.specs</groupId>
<artifactId>geronimo-servlet_2.5_spec</artifactId>
<version>1.2</version>
<scope>provided</scope>
</dependency>
<!-- Make use of JSP tags. Remove, if you don't use JSPs -->
<dependency>
<artifactId>standard</artifactId>
<groupId>taglibs</groupId>
<version>1.1.2</version>
<type>jar</type>
<scope>runtime</scope>
</dependency>
<!-- These dependencies are here just for enabling logging -->
<dependency>
<groupId>org.slf4j</groupId>
<artifactId>slf4j-api</artifactId>
<version>1.6.1</version>
</dependency>
<dependency>
<groupId>ch.qos.logback</groupId>
<artifactId>logback-classic</artifactId>
<version>0.9.24</version>
</dependency>
<!-- Test scope -->
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>4.5</version>
<scope>test</scope>
</dependency>
<!-- GAE libraries for local testing as described here: http://code.google.com/appengine/docs/java/howto/unittesting.html -->
<dependency>
<groupId>com.google.appengine</groupId>
<artifactId>appengine-api-labs</artifactId>
<version>${gae.version}</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>com.google.appengine</groupId>
<artifactId>appengine-api-stubs</artifactId>
<version>${gae.version}</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>com.google.appengine</groupId>
<artifactId>appengine-testing</artifactId>
<version>${gae.version}</version>
<scope>test</scope>
</dependency>
</dependencies>
<build>
<plugins>
<!-- This plug-in "enhances" your domain model objects (i.e. makes them persistent for
datanucleus) -->
<plugin>
<groupId>org.datanucleus</groupId>
<artifactId>maven-datanucleus-plugin</artifactId>
<version>1.1.4</version>
<configuration>
<!-- Make sure this path contains your persistent classes! -->
<mappingIncludes>**/model/*.class</mappingIncludes>
<verbose>true</verbose>
<enhancerName>ASM</enhancerName>
<api>JDO</api>
</configuration>
<executions>
<execution>
<phase>compile</phase>
<goals>
<goal>enhance</goal>
</goals>
</execution>
</executions>
<dependencies>
<dependency>
<groupId>org.datanucleus</groupId>
<artifactId>datanucleus-core</artifactId>
<version>1.1.5</version>
<exclusions>
<exclusion>
<groupId>javax.transaction</groupId>
<artifactId>transaction-api</artifactId>
</exclusion>
</exclusions>
</dependency>
<dependency>
<groupId>org.datanucleus</groupId>
<artifactId>datanucleus-rdbms</artifactId>
<version>1.1.5</version>
</dependency>
<dependency>
<groupId>org.datanucleus</groupId>
<artifactId>datanucleus-enhancer</artifactId>
<version>1.1.4</version>
</dependency>
</dependencies>
</plugin>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-war-plugin</artifactId>
<version>2.1-beta-1</version>
<configuration>
<webResources>
<resource>
<directory>src/main/webapp</directory>
<filtering>true</filtering>
<includes>
<include>**/appengine-web.xml</include>
</includes>
</resource>
</webResources>
</configuration>
</plugin>
<!-- Maven GWT plugin (ex. http://gwt-maven.googlecode.com/svn/docs/maven-googlewebtoolkit2-plugin/index.html)
http://mojo.codehaus.org/gwt-maven-plugin -->
<plugin>
<groupId>org.codehaus.mojo</groupId>
<artifactId>gwt-maven-plugin</artifactId>
<version>1.2</version>
<configuration>
<logLevel>INFO</logLevel>
<!-- match -Dgae.port -->
<port>${gae.port}</port>
<!--<!–This must point to your GWT modules!–>-->
<!--<compileTargets>-->
<!--<value>net.kindleit.gae.example.Messages</value>-->
<!--</compileTargets>-->
<!-- This is for generating Asynch interfaces -->
<!-- <servicePattern>**/client/*Service.java</servicePattern> -->
<extraJvmArgs>-Xmx512m</extraJvmArgs>
<!--<jvm>${JAVA_HOME}/bin/java</jvm> -->
<!--<noServer>false</noServer> -->
<!-- TODO This should help running GAE stuff in hosted mode (when gwt-maven-plugin-1.2
is released, see http://jira.codehaus.org/browse/MGWT-112) -->
<server>com.google.appengine.tools.development.gwt.AppEngineLauncher
</server>
<runTarget>/index.html</runTarget>
<style>DETAILED</style>
<webXml>war/WEB-INF/web.xml</webXml>
<!-- this parameter is VERY important with automatic mode - has to match the version
in your declared deps -->
<!-- if this is set incorrect (not a match), or left out (default is 1.5.2 for 2.0-beta23)
you will have mysterious errors -->
<gwtVersion>${gwt.version}</gwtVersion>
</configuration>
<executions>
<!-- <execution> <id>generateAsynch</id> <phase>generate-sources</phase> <goals>
<goal>generateAsync</goal> </goals> </execution> -->
<execution>
<phase>compile</phase>
<goals>
<goal>compile</goal>
</goals>
</execution>
</executions>
</plugin>
<!-- The actual maven-gae-plugin. Type "mvn gae:run" to run project, "mvn gae:deploy"
to upload to GAE. -->
<plugin>
<groupId>net.kindleit</groupId>
<artifactId>maven-gae-plugin</artifactId>
<version>0.9.4</version>
</plugin>
<!-- Upload application to the appspot automatically, during release:perform -->
<plugin>
<artifactId>maven-release-plugin</artifactId>
<configuration>
<goals>gae:deploy</goals>
</configuration>
</plugin>
<!-- Java compiler version -->
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<version>2.0</version>
<configuration>
<source>1.6</source>
<target>1.6</target>
</configuration>
</plugin>
</plugins>
<pluginManagement>
<plugins>
<!-- Copy dependencies to war/WEB-INF/lib for GAE proj compliance. -->
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-dependency-plugin</artifactId>
<executions>
<execution>
<id>default-cli</id>
<goals>
<goal>copy-dependencies</goal>
</goals>
<configuration>
<outputDirectory>${basedir}/webapp/WEB-INF/lib/</outputDirectory>
<overWriteReleases>false</overWriteReleases>
<overWriteSnapshots>false</overWriteSnapshots>
<overWriteIfNewer>true</overWriteIfNewer>
<excludeArtifactIds>gwt-user,gwt-dev</excludeArtifactIds>
<includeScope>runtime</includeScope>
</configuration>
</execution>
</executions>
</plugin>
</plugins>
</pluginManagement>
</build>
<!-- Specify hard-coded project properties here -->
<properties>
<!-- Sets the project's default encoding.
http://docs.codehaus.org/display/MAVENUSER/POM+Element+for+Source+File+Encoding -->
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
<!-- This is just for "eclipse:eclipse" goal to always attempt downloading sources -->
<downloadSources>true</downloadSources>
<!-- Specify AppEngine version for your project. It should match SDK version pointed to
by ${gae.home} property (Typically, one used by your Eclipse plug-in) -->
<gae.version>1.7.2</gae.version>
<gae.home>/mnt/devel/lib/appengine-java-sdk-1.7.4</gae.home>
<!-- GWT version -->
<gwt.version>1.6.3</gwt.version>
<appengine.target.version>1.7.4</appengine.target.version>
<!-- Upload to http://test.latest.<applicationName>.appspot.com by default -->
<gae.application.version>test</gae.application.version>
<!-- port defaults to 8080 -->
<gae.port>8082</gae.port>
<!-- Produce detailed JS during GWT compilation for development environment -->
<gwt.style>DETAILED</gwt.style>
</properties>
<profiles>
<!-- We can configure our integration server to activate this profile and perform gae:deploy,
thus uploading latest snapshot to the http://1.latest.<applicationName>.appspot.com automatically -->
<profile>
<id>integration-build</id>
<properties>
<gae.application.version>stage</gae.application.version>
<!-- Produce pretty JS during GWT compilation for test environment -->
<gwt.style>PRETTY</gwt.style>
</properties>
</profile>
<!-- This profile will activate automatically during release and upload application to
the http://2.latest.<applicationName>.appspot.com (We might want to set the 2nd version as
our applications Default version to be accessible at http://<applicationName>.appspot.com) -->
<profile>
<id>release-build</id>
<activation>
<property>
<name>performRelease</name>
<value>true</value>
</property>
</activation>
<properties>
<!-- During release, set application version in appengine-web.xml to 2 -->
<gae.application.version>release</gae.application.version>
<!-- Produce compressed JS during GWT compilation for production environment -->
<gwt.style>OBFUSCATED</gwt.style>
</properties>
</profile>
</profiles>
</project>