Java Yaml文件上的Maven原型过滤器

在构建原型时，我在解析yaml文件时收到一个错误

我以这种方式为yaml设置了archetype metadata.xml上的文件集

<fileSet filtered="true" encoding="UTF-8">
            <directory>src/main/resources</directory>
            <includes>
                <include>**/*.yml</include>
            </includes>
        </fileSet>

这是我原型的清理和安装上的错误

 org.apache.velocity.exception.ParseErrorException: Encountered ":4001}" at archetype-resources/src/main/resources/bootstrap.yml[line 11, column 15]
Was expecting one of:
    "[" ...
    "}" ...

at org.apache.velocity.Template.process(Template.java:151)
at org.apache.velocity.runtime.resource.ResourceManagerImpl.loadResource(ResourceManagerImpl.java:437)
at org.apache.velocity.runtime.resource.ResourceManagerImpl.getResource(ResourceManagerImpl.java:352)
at org.apache.velocity.runtime.RuntimeInstance.getTemplate(RuntimeInstance.java:1533)
at org.apache.velocity.app.VelocityEngine.mergeTemplate(VelocityEngine.java:343)
at org.apache.maven.archetype.generator.DefaultFilesetArchetypeGenerator.processTemplate(DefaultFilesetArchetypeGenerator.java:770)
at org.apache.maven.archetype.generator.DefaultFilesetArchetypeGenerator.processFileSet(DefaultFilesetArchetypeGenerator.java:571)
at org.apache.maven.archetype.generator.DefaultFilesetArchetypeGenerator.processTemplates(DefaultFilesetArchetypeGenerator.java:820)
at org.apache.maven.archetype.generator.DefaultFilesetArchetypeGenerator.processArchetypeTemplates(DefaultFilesetArchetypeGenerator.java:545)
at org.apache.maven.archetype.generator.DefaultFilesetArchetypeGenerator.processFilesetProject(DefaultFilesetArchetypeGenerator.java:663)
at org.apache.maven.archetype.generator.DefaultFilesetArchetypeGenerator.processFilesetModule(DefaultFilesetArchetypeGenerator.java:596)
at org.apache.maven.archetype.generator.DefaultFilesetArchetypeGenerator.generateArchetype(DefaultFilesetArchetypeGenerator.java:207)
at org.apache.maven.archetype.generator.DefaultArchetypeGenerator.processFileSetArchetype(DefaultArchetypeGenerator.java:135)
at org.apache.maven.archetype.generator.DefaultArchetypeGenerator.generateArchetype(DefaultArchetypeGenerator.java:106)
at org.apache.maven.archetype.generator.DefaultArchetypeGenerator.generateArchetype(DefaultArchetypeGenerator.java:149)
at org.apache.maven.archetype.mojos.IntegrationTestMojo.generate(IntegrationTestMojo.java:535)
at org.apache.maven.archetype.mojos.IntegrationTestMojo.processIntegrationTest(IntegrationTestMojo.java:494)
at org.apache.maven.archetype.mojos.IntegrationTestMojo.execute(IntegrationTestMojo.java:313)
at org.apache.maven.plugin.DefaultBuildPluginManager.executeMojo(DefaultBuildPluginManager.java:134)
at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:208)
at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:153)
at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:145)
at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject(LifecycleModuleBuilder.java:116)
at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject(LifecycleModuleBuilder.java:80)
at org.apache.maven.lifecycle.internal.builder.singlethreaded.SingleThreadedBuilder.build(SingleThreadedBuilder.java:51)
at org.apache.maven.lifecycle.internal.LifecycleStarter.execute(LifecycleStarter.java:128)
at org.apache.maven.DefaultMaven.doExecute(DefaultMaven.java:307)
at org.apache.maven.DefaultMaven.doExecute(DefaultMaven.java:193)
at org.apache.maven.DefaultMaven.execute(DefaultMaven.java:106)
at org.apache.maven.cli.MavenCli.execute(MavenCli.java:862)
at org.apache.maven.cli.MavenCli.doMain(MavenCli.java:286)
at org.apache.maven.cli.MavenCli.main(MavenCli.java:197)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:497)
at org.codehaus.plexus.classworlds.launcher.Launcher.launchEnhanced(Launcher.java:289)
at org.codehaus.plexus.classworlds.launcher.Launcher.launch(Launcher.java:229)
at org.codehaus.plexus.classworlds.launcher.Launcher.mainWithExitCode(Launcher.java:415)
at org.codehaus.plexus.classworlds.launcher.Launcher.main(Launcher.java:356)

我正在使用

• 血氧饱和度
• JDK1.8
• Maven 3.3.1

---

唉，

${PORT:4001}

语法还不受Velocity的支持

---

因此，您必须使用

#if（$PORT）$PORT#{else}4001#end

Velocity将在

$

（美元符号）之后尝试获取变量，因此我建议您欺骗Velocity忽略它，然后在Velocity完成转换模板后，您的弹簧将获得所需的输出

${PORT:4001}

#set ( $dollarSign = "$")
port: $dollarSign{PORT:4001}

---

它应该是${dollarSign}{PORT:4001}

{$PORT:4001}是具有默认值的占位符Spring。

#set ( $dollarSign = "$")
port: $dollarSign{PORT:4001}