GWTのMavenプロジェクトは、私がこのようにMavenの構成でGWTプロジェクトを作成したDEVMODE

Question

では動作しません。しかし、ブラウザで私は得た：

"HTTP ERROR 404 

Problem accessing /HelloWorldGWT.html. 

Reason: Not Found" 

私は見て、ディレクトリWEB - INFは空だった。

pom.xmlの何が間違っていますか？

のpom.xml：GWTのドキュメントpageから

<?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>ua.vitvyaz.hellowordgwt</groupId> 
 
    <artifactId>HelloWorldGWT</artifactId> 
 
    <packaging>war</packaging> 
 
    <version>1.0-SNAPSHOT</version> 
 
    <name>ua.vitvyaz.hellowordgwt.HelloWorldGWT</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>2.8.0-rc1</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-6</version> 
 
     <executions> 
 
      <execution> 
 
      <goals> 
 
       <goal>import-sources</goal> 
 
       <goal>compile</goal> 
 
       <goal>import-test-sources</goal> 
 
       <goal>test</goal> 
 
      </goals> 
 
      </execution> 
 
     </executions> 
 
     <configuration> 
 
      <moduleName>ua.vitvyaz.hellowordgwt.HelloWorldGWT</moduleName> 
 
      <moduleShortName>HelloWorldGWT</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>HelloWorldGWT.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>

Answer 1

あなたはsuperDevModeで新しいアプリケーションを起動するためにmvn gwt:runを実行する必要があります。

UPDATE

あなたは、あなたのプロジェクト実行する前にそれを構築する必要があります。言い換えれば試してみてください。

mvn clean package gwt:devmode

それが動作するようになりました。

-- Option D: Using Maven -- 

If you have generated your project with the option '-maven', you have a 'pom.xml' 
file ready to use. Assuming you have Maven installed in your system, 'mvn' is 
in your path, and you have access to maven repositories, you should be able to run: 

mvn clean   # delete temporary stuff 
mvn test   # run all the tests (gwt and junit) 
mvn gwt:devmode # run development mode (needs "mvn package" to be run before) 
mvn package  # generate a .war package ready to deploy 

For more information about other available goals, read Maven and gwt-maven-plugin 
documentation (http://maven.apache.org, https://tbroyer.github.io/gwt-maven-plugin/) 

をそのように最初の実行mvn package、mvn run:devmode：webAppCreatorが生成README.txtから

Answer 2

。

ウェブサイトにはまだ2.8（2016年9月現在）ではなく、GWT 2.7が記載されています。