您可以使用gwtmaven插件。您已经提到您已经有了eclipse gwt插件，因此您可以创建一个新的gwt项目（例如，右键单击projectexplorer->new->other…->gwt web应用程序项目）。填写项目名称和包，并确保启用复选框“生成maven项目”。然后有一个pom.xml的工作示例：

<?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">
   <!-- POM file generated with GWT webAppCreator -->
   <modelVersion>4.0.0</modelVersion>
   <groupId>com.world.hello</groupId>
   <artifactId>HelloWorld</artifactId>
   <packaging>war</packaging>
   <version>1.0-SNAPSHOT</version>
   <name>com.world.hello.HelloWorld</name>
   <properties>
      <!-- Setting maven.compiler.source to something different to 1.8
         needs that you configure the sourceLevel in gwt-maven-plugin since
         GWT compiler 2.8 requires 1.8 (see gwt-maven-plugin block below) -->
      <maven.compiler.source>1.8</maven.compiler.source>
      <maven.compiler.target>1.8</maven.compiler.target>
      <!-- Don't let your Mac use a crazy non-standard encoding -->
      <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
      <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
   </properties>
   <dependencyManagement>
      <dependencies>
         <!-- ensure all GWT deps use the same version (unless overridden) -->
         <dependency>
            <groupId>com.google.gwt</groupId>
            <artifactId>gwt</artifactId>
            <version>2.9.0</version>
            <type>pom</type>
            <scope>import</scope>
         </dependency>
      </dependencies>
   </dependencyManagement>
   <dependencies>
      <dependency>
         <groupId>com.google.gwt</groupId>
         <artifactId>gwt-servlet</artifactId>
         <scope>runtime</scope>
      </dependency>
      <dependency>
         <groupId>com.google.gwt</groupId>
         <artifactId>gwt-user</artifactId>
         <scope>provided</scope>
      </dependency>
      <dependency>
         <groupId>com.google.gwt</groupId>
         <artifactId>gwt-dev</artifactId>
         <scope>provided</scope>
      </dependency>
      <dependency>
         <groupId>junit</groupId>
         <artifactId>junit</artifactId>
         <version>4.11</version>
         <scope>test</scope>
      </dependency>
   </dependencies>
   <build>
      <!-- Output classes directly into the webapp, so that IDEs and "mvn process-classes" update them in DevMode -->
      <outputDirectory>${project.build.directory}/${project.build.finalName}/WEB-INF/classes</outputDirectory>
      <plugins>
         <!-- GWT Maven Plugin-->
         <plugin>
            <groupId>net.ltgt.gwt.maven</groupId>
            <artifactId>gwt-maven-plugin</artifactId>
            <version>1.0-rc-8</version>
            <executions>
               <execution>
                  <goals>
                     <goal>compile</goal>
                     <goal>test</goal>
                  </goals>
               </execution>
            </executions>
            <configuration>
               <moduleName>com.world.hello.HelloWorld</moduleName>
               <moduleShortName>HelloWorld</moduleShortName>
               <failOnError>true</failOnError>
               <!-- GWT compiler 2.8 requires 1.8, hence define sourceLevel here if you use
               a different source language for java compilation -->
               <sourceLevel>1.8</sourceLevel>
               <!-- Compiler configuration -->
               <compilerArgs>
                  <!-- Ask GWT to create the Story of Your Compile (SOYC) (gwt:compile) -->
                  <arg>-compileReport</arg>
                  <arg>-XcompilerMetrics</arg>
               </compilerArgs>
               <!-- DevMode configuration -->
               <warDir>${project.build.directory}/${project.build.finalName}</warDir>
               <classpathScope>compile+runtime</classpathScope>
               <!-- URL(s) that should be opened by DevMode (gwt:devmode). -->
               <startupUrls>
                  <startupUrl>HelloWorld.html</startupUrl>
               </startupUrls>
            </configuration>
         </plugin>
         <!-- Skip normal test execution, we use gwt:test instead -->
         <plugin>
            <artifactId>maven-surefire-plugin</artifactId>
            <version>2.17</version>
            <configuration>
               <skip>true</skip>
            </configuration>
         </plugin>
      </plugins>
   </build>
</project>

跑步 mvn clean install 在控制台上，将使用maven编译您的项目。或者在项目浏览器中右键单击项目，然后选择maven->update project。。。
有时，在创建gwtmaven项目之后，eclipse不会自动将其识别为maven项目。如果是这种情况，请在项目资源管理器中右键单击项目，然后选择“配置”->“转换为maven项目”。