如何使用Maven在Vaadin 7中仅编译必要的小部件？

您需要自定义widgetset吗？如果您没有使用任何小部件插件,并且因为您是Vaadin的新用户,我假设您还没有创建自己的小部件(？),您可以简单地使用Vaadin提供的预编译小部件集.为此,请从项目中删除任何xxx.gwt.xml文件,并使用com.vaadin.DefaultWidgetset替换web.xml中对它的引用.

web.xml中:

<init-param>
    <name>widgetset</name>
    <value>com.vaadin.DefaultWidgetSet</value>
</init-param>

pom.xml中:

<dependency>
    <groupId>com.vaadin</groupId>
    <artifactId>vaadin-client-compiled</artifactId>
    <version>7.1.9</version>    <!-- or whatever version you're using -->
</dependency>

如果你确实需要一个自定义的widgetset(如果你现在不需要,那么你可能需要更进一步),帮自己一个忙,把它放在一个单独的项目中.根据我的经验,一个widgetset很少变化,所以为什么要将它包含在一个不断变化的项目中.由Vaadin提供的上述默认widgetset是构建一个的完美蓝图.只需构建自己的,并从vaadin-client-compiled.jar复制其结构.你可以使用你最喜欢的maven build helper,我的是程序集.只需创建一个maven项目,设置pom.xml,添加一个xxx.gwt.xml并确保web.xml包含对它的引用.我自己的设置看起来像你在下面看到的.

pom.xml中:

<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/xsd/maven-4.0.0.xsd">
    <modelVersion>4.0.0</modelVersion>

    <name>MyWidgetset</name>
    <groupId>com.company</groupId>
    <artifactId>mywidgetset</artifactId>
    <version>1.0-SNAPSHOT</version>

    <properties>
        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
        <vaadin.version>7.1.9</vaadin.version>
        <vaadin.plugin.version>7.1.9</vaadin.plugin.version>
    </properties>

    <dependencies>
        <!-- vaadin -->
        <dependency>
            <groupId>com.vaadin</groupId>
            <artifactId>vaadin-client</artifactId>
            <version>${vaadin.version}</version>
            <scope>provided</scope>
        </dependency>
        <dependency>
            <groupId>com.vaadin</groupId>
            <artifactId>vaadin-client-compiler</artifactId>
            <version>${vaadin.version}</version>
            <scope>provided</scope>
        </dependency>

        <!-- custom widgets (NOTE: addons without a widget do not belong here) -->
        <dependency>
            <groupId>org.vaadin.addons</groupId>
            <artifactId>filteringtable</artifactId>
            <version>0.9.3.v7</version>
        </dependency>
        <dependency>
            <groupId>org.vaadin.addons</groupId>
            <artifactId>popupbutton</artifactId>
            <version>2.3.0</version>
        </dependency>
    </dependencies>

    <build>
        <plugins>
            <!-- vaadin update widgetset -->
            <plugin>
                <groupId>com.vaadin</groupId>
                <artifactId>vaadin-maven-plugin</artifactId>
                <version>${vaadin.plugin.version}</version>

                <configuration>
                    <extraJvmArgs>-Xmx512M -Xss1024k</extraJvmArgs>
                    <webappDirectory>${basedir}/target/VAADIN/widgetsets</webappDirectory>
                    <hostedWebapp>${basedir}/target/VAADIN/widgetsets</hostedWebapp>
                    <force>false</force>
                    <strict>true</strict>
                    <noServer>true</noServer>
                    <compileReport>true</compileReport>
                    <style>OBF</style>
                    <runTarget>http://localhost:8080/</runTarget>
                </configuration>
                <executions>
                    <execution>
                        <goals>
                            <goal>resources</goal>
                            <goal>update-widgetset</goal>
                            <goal>compile</goal>
                        </goals>
                    </execution>
                </executions>
            </plugin>

            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-assembly-plugin</artifactId>
                <version>2.4</version>
                <configuration>
                    <appendAssemblyId>false</appendAssemblyId>
                    <descriptors>
                        <descriptor>src/main/resources/assembly.xml</descriptor>
                    </descriptors>
                </configuration>
                <executions>
                    <execution>
                        <id>make-assembly</id>
                        <phase>package</phase>
                        <goals>
                            <goal>single</goal>
                        </goals>
                    </execution>
                </executions>
            </plugin>

        </plugins>
    </build>

    <repositories>
        <repository>
            <id>vaadin-addons</id>
            <url>http://maven.vaadin.com/vaadin-addons</url>
        </repository>
    </repositories>
</project>

assembly.xml:

<assembly xmlns="http://maven.apache.org/plugins/maven-assembly-plugin/assembly/1.1.2"
          xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
          xsi:schemaLocation="http://maven.apache.org/plugins/maven-assembly-plugin/assembly/1.1.2 http://maven.apache.org/xsd/assembly-1.1.2.xsd">

    <id>build-my-widgetset-jar</id>
    <formats>
        <format>jar</format>
    </formats>

    <includeBaseDirectory>false</includeBaseDirectory>

    <fileSets>
        <fileSet>
            <directory>${basedir}/target/VAADIN/widgetsets</directory>
            <outputDirectory>/VAADIN/widgetsets</outputDirectory>
            <excludes>
                <exclude>WEB-INF/</exclude>
            </excludes>
        </fileSet>
    </fileSets>
</assembly>

MyWidgetset.gwt.xml:

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE module PUBLIC
    "-//Google Inc.//DTD Google Web Toolkit 1.7.0//EN"
    "http://google-web-toolkit.googlecode.com/svn/tags/1.7.0/distro-source/core/src/gwt-module.dtd">
<module>
    <inherits name="com.vaadin.DefaultWidgetSet" />

    <inherits name="org.tepi.filtertable.gwt.FilterTableWidgetset" />

    <inherits name="org.vaadin.hene.popupbutton.widgetset.PopupbuttonWidgetset" />

</module>

web.xml中:

<?xml version="1.0" encoding="UTF-8"?>

<web-app xmlns="http://java.sun.com/xml/ns/javaee"
         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
         xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd"
         version="3.0">

    <display-name>MyWidgetset</display-name>

    <servlet>
        <servlet-name>MyWidgetset</servlet-name>
        <servlet-class>com.vaadin.server.VaadinServlet</servlet-class>
        <init-param>
            <param-name>ui</param-name>
            <param-value>com.company.mywidgetset.App</param-value>    <!-- use it for testing the widgetset-->
        </init-param>
        <init-param>
            <param-name>widgetset</param-name>
            <param-value>com.company.mywidgetset.MyWidgetset</param-value>
        </init-param>
    </servlet>

    <servlet-mapping>
        <servlet-name>MyWidgetset</servlet-name>
        <url-pattern>/*</url-pattern>
    </servlet-mapping>
</web-app>

项目结构:

|   pom.xml
|
\---src
    +---main
    |   +---java
    |   |   \---com
    |   |       \---company
    |   |           \---mywidgetset
    |   |                   App.java
    |   |                   MyWidgetset.gwt.xml
    |   |
    |   +---resources
    |   |       assembly.xml
    |   |
    |   \---webapp
    |       \---WEB-INF
    |               web.xml
    |
    \---test
        \---java

构建它,使用jar作为项目中的依赖项,然后就完成了.这将永久地让你摆脱GWT称之为"widgetset编译"的巨大痛苦.