我想在运行时访问我的pom.xml的${version}属性，使用如下代码：
primaryStage.setTitle("MyApp v" + Main.class.getPackage().getImplementationVersion());
我正在使用javafx-maven-plugin来构建可执行jar。
知道这个代码只有在找到带有版本属性的MANIFEST文件时才有效，我查看了该插件的文档，但没有发现让它生成MANIFEST文件。
接下来我尝试使用maven-jar-plugin来完成here发布的工作
但我仍然从上面的代码中得到MyApp vnull。
从我的pom.xml：
<build>
<plugins>
<!-- Set a compiler level -->
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<version>3.3</version>
<configuration>
<source>1.8</source>
<target>1.8</target>
</configuration>
</plugin>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-jar-plugin</artifactId>
<configuration>
<archive>
<addMavenDescriptor>false</addMavenDescriptor>
<manifest>
<addDefaultSpecificationEntries>true</addDefaultSpecificationEntries>
<addDefaultImplementationEntries>true</addDefaultImplementationEntries>
</manifest>
</archive>
</configuration>
</plugin>
<plugin>
<groupId>com.zenjava</groupId>
<artifactId>javafx-maven-plugin</artifactId>
<version>8.1.4</version>
<configuration>
<mainClass>de.tools.Main</mainClass>
<identifier>${project.artifactId}</identifier>
<vendor>Me</vendor>
<bundler>EXE</bundler>
<nativeReleaseVersion>${project.version}</nativeReleaseVersion>
<needShortcut>true</needShortcut>
<needMenu>true</needMenu>
<appName>${project.artifactId}</appName>
</configuration>
<executions>
<execution>
<!-- required before build-native -->
<id>create-jfxjar</id>
<phase>package</phase>
<goals>
<goal>build-jar</goal>
</goals>
</execution>
<execution>
<id>create-native</id>
<phase>package</phase>
<goals>
<goal>build-native</goal>
</goals>
</execution>
</executions>
</plugin>
</plugins>
</build>
我做错了什么？
答案 0 :(得分：1)
<script>
$(function () {
var source = sessionStorage.getItem("source");
$("#background").attr("src", source);
});
setTimeout(function () {
var myImg = document.querySelector("#background");
var realWidth = myImg.naturalWidth;
var realHeight = myImg.naturalHeight;
$("canvas").attr("width", realWidth);
$("canvas").attr("height", realHeight);
var source = document.getElementById('background').src;
var canvas = new fabric.Canvas('canvas');
canvas.width=realWidth;
canvas.height=realHeight;
var ctx = canvas.getContext('2d');
var img = new Image();
img.src = 'images/logo.png';
var imgInstance = new fabric.Image(img, {
width: 200
, height: 45
});
canvas.add(imgInstance);
canvas.setBackgroundImage(source, canvas.renderAll.bind(canvas), {
backgroundImageOpacity: 0.5
, backgroundImageStretch: false
});
}, 2000);
$("#save").click(function(){
function blobCallback(iconName) {
return function (b) {
var a = document.getElementById('download');
a.download = iconName + ".jpg";
a.href = window.URL.createObjectURL(b);
}
}
canvas.toBlob(blobCallback('wallpaper'), 'image/vnd.microsoft.jpg', '-moz-parse-options:format=bmp;bpp=32');
});
配置与maven-jar-plugin配置无关。事实上，他们在两个不同的位置创建了两个不同的jar（默认配置）。
您必须将以下配置添加到jfx-plugin配置中：
jfx-plugin您可以通过访问-final-jar.jar / META-INF / MANIFEST.MF来检查这些值。
我将在插件仓库上创建一个问题/故障单，默认情况下添加对这些标志的支持，类似于<manifestAttributes>
<Specification-Title>${project.name}</Specification-Title>
<Specification-Version>${project.version}</Specification-Version>
<Specification-Vendor>${project.organization.name}</Specification-Vendor>
<Implementation-Title>${project.name}</Implementation-Title>
<Implementation-Version>${project.version}</Implementation-Version>
<Implementation-Vendor-Id>${project.groupId}</Implementation-Vendor-Id>
<Implementation-Vendor>${project.organization.name</Implementation-Vendor>
</manifestAttributes>
：
javafx-maven-plugin #220