如何使用maven ONLY编译GWT项目

Question

我有一个GWT项目，我目前使用Eclipse GWT plugin编译，但现在我想让我的项目独立于IDE进行编译，方法是只使用Maven。

从我的研究中，我发现你需要将GWT Compiler plugin添加到pom.xml中，才能将代码从Java编译成Javascript文件(JS文件稍后可以打包在war中(，但我似乎在maven存储库中找不到编译器的依赖性，也找不到好的编译器文档。你能发布一个"；基本的"；可以用来编译HelloworldGWT项目的工作pom.xml文件，非常感谢，谢谢。

编辑：

• 我使用的是GWT 2.7.0

Answer 1

您可以使用gwt-maven插件。您已经提到您已经拥有EclipseGWT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…->GWTWeb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"；。然后您有一个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>

在控制台上运行mvn clean install将使用Maven编译您的项目。或者右键单击项目资源管理器上的项目，然后选择Maven->更新项目。。。

有时，在创建GWtMaven项目后，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您的项目，然后选择"配置"->转换为Maven项目。