Java 为分解任务添加渐变任务

我正在使用JHipster 4.5.4和Gradle作为构建系统，并希望添加Gradle任务以执行Liquibase任务，如验证或重置。我使用JHipster附带的liquibaseDiffChangelog任务作为模板。此任务的定义如下：

task liquibaseDiffChangelog(dependsOn: compileJava, type: JavaExec) {
    group = "liquibase"

    if (OperatingSystem.current().isWindows()) {
        dependsOn pathingLiquibaseJar
        doFirst {
            classpath = files(pathingLiquibaseJar.archivePath)
        }
    } else {
        classpath sourceSets.main.runtimeClasspath
        classpath configurations.liquibase
    }
    main = "liquibase.integration.commandline.Main"

    args "--changeLogFile=src/main/resources/config/liquibase/changelog/" + buildTimestamp() +"_changelog.xml"
    args "--referenceUrl=hibernate:spring:at.project.domain?dialect=org.hibernate.dialect.MySQL5InnoDBDialect&hibernate.physical_naming_strategy=org.springframework.boot.orm.jpa.hibernate.SpringPhysicalNamingStrategy&hibernate.implicit_naming_strategy=org.springframework.boot.orm.jpa.hibernate.SpringImplicitNamingStrategy"
    args "--username=testapp_db_user"
    args "--password=secret"
    args "--url=jdbc:mysql://localhost:3306/testapp_db"
    args "--driver=com.mysql.jdbc.Driver"
    args "diffChangeLog"
}

task liquibaseValidate(dependsOn: compileJava, type: JavaExec) {
    group = "liquibase"

    if (OperatingSystem.current().isWindows()) {
        dependsOn pathingLiquibaseJar
        doFirst {
            classpath = files(pathingLiquibaseJar.archivePath)
        }
    } else {
        classpath sourceSets.main.runtimeClasspath
        classpath configurations.liquibase
    }
    main = "liquibase.integration.commandline.Main"

    args "--changeLogFile=./build/resources/main/config/liquibase/master.xml"
    args "--referenceUrl=hibernate:spring:at.project.domain?dialect=org.hibernate.dialect.MySQL5InnoDBDialect&hibernate.physical_naming_strategy=org.springframework.boot.orm.jpa.hibernate.SpringPhysicalNamingStrategy&hibernate.implicit_naming_strategy=org.springframework.boot.orm.jpa.hibernate.SpringImplicitNamingStrategy"
    args "--username=testapp_db_user"
    args "--password=secret"
    args "--url=jdbc:mysql://localhost:3306/testapp_db"
    args "--driver=com.mysql.jdbc.Driver"
    args "--classpath=./build/resources/main/config/liquibase/changelog/"
    args "validate"
}

我从diffChangeLog中的简单交换开始，使用validate但随后收到类路径错误。我还添加了一个classpath参数，最后得到了如下任务定义：

task liquibaseDiffChangelog(dependsOn: compileJava, type: JavaExec) {
    group = "liquibase"

    if (OperatingSystem.current().isWindows()) {
        dependsOn pathingLiquibaseJar
        doFirst {
            classpath = files(pathingLiquibaseJar.archivePath)
        }
    } else {
        classpath sourceSets.main.runtimeClasspath
        classpath configurations.liquibase
    }
    main = "liquibase.integration.commandline.Main"

    args "--changeLogFile=src/main/resources/config/liquibase/changelog/" + buildTimestamp() +"_changelog.xml"
    args "--referenceUrl=hibernate:spring:at.project.domain?dialect=org.hibernate.dialect.MySQL5InnoDBDialect&hibernate.physical_naming_strategy=org.springframework.boot.orm.jpa.hibernate.SpringPhysicalNamingStrategy&hibernate.implicit_naming_strategy=org.springframework.boot.orm.jpa.hibernate.SpringImplicitNamingStrategy"
    args "--username=testapp_db_user"
    args "--password=secret"
    args "--url=jdbc:mysql://localhost:3306/testapp_db"
    args "--driver=com.mysql.jdbc.Driver"
    args "diffChangeLog"
}

task liquibaseValidate(dependsOn: compileJava, type: JavaExec) {
    group = "liquibase"

    if (OperatingSystem.current().isWindows()) {
        dependsOn pathingLiquibaseJar
        doFirst {
            classpath = files(pathingLiquibaseJar.archivePath)
        }
    } else {
        classpath sourceSets.main.runtimeClasspath
        classpath configurations.liquibase
    }
    main = "liquibase.integration.commandline.Main"

    args "--changeLogFile=./build/resources/main/config/liquibase/master.xml"
    args "--referenceUrl=hibernate:spring:at.project.domain?dialect=org.hibernate.dialect.MySQL5InnoDBDialect&hibernate.physical_naming_strategy=org.springframework.boot.orm.jpa.hibernate.SpringPhysicalNamingStrategy&hibernate.implicit_naming_strategy=org.springframework.boot.orm.jpa.hibernate.SpringImplicitNamingStrategy"
    args "--username=testapp_db_user"
    args "--password=secret"
    args "--url=jdbc:mysql://localhost:3306/testapp_db"
    args "--driver=com.mysql.jdbc.Driver"
    args "--classpath=./build/resources/main/config/liquibase/changelog/"
    args "validate"
}

主文件被读取，因为它提到了正确的文件名，所以这一部分很好。但它无法识别实际变更集文件的路径，这些文件在master.xml文件中引用。 这是错误消息：

19:51:04.292 [main] ERROR liquibase - classpath:config/liquibase/changelog/00000000000000_initial_schema.xml does not exist
liquibase.exception.ChangeLogParseException: liquibase.exception.SetupException: classpath:config/liquibase/changelog/00000000000000_initial_schema.xml does not exist
        at liquibase.parser.core.xml.AbstractChangeLogParser.parse(AbstractChangeLogParser.java:27)
        at liquibase.Liquibase.getDatabaseChangeLog(Liquibase.java:229)
        at liquibase.Liquibase.validate(Liquibase.java:1443)
        at liquibase.integration.commandline.Main.doMigration(Main.java:1102)
        at liquibase.integration.commandline.Main.run(Main.java:188)
        at liquibase.integration.commandline.Main.main(Main.java:103)
Caused by: liquibase.exception.SetupException: classpath:config/liquibase/changelog/00000000000000_initial_schema.xml does not exist
        at liquibase.changelog.DatabaseChangeLog.handleChildNode(DatabaseChangeLog.java:322)
        at liquibase.changelog.DatabaseChangeLog.load(DatabaseChangeLog.java:282)
        at liquibase.parser.core.xml.AbstractChangeLogParser.parse(AbstractChangeLogParser.java:25)
        ... 5 common frames omitted
Caused by: liquibase.exception.ChangeLogParseException: classpath:config/liquibase/changelog/00000000000000_initial_schema.xml does not exist
        at liquibase.parser.core.xml.XMLChangeLogSAXParser.parseToNode(XMLChangeLogSAXParser.java:100)
        at liquibase.parser.core.xml.AbstractChangeLogParser.parse(AbstractChangeLogParser.java:17)
        at liquibase.changelog.DatabaseChangeLog.include(DatabaseChangeLog.java:478)
        at liquibase.changelog.DatabaseChangeLog.handleChildNode(DatabaseChangeLog.java:320)
        ... 7 common frames omitted

如何正确添加类路径？

与相关，您需要从master.xml（位于

src/main/resources/config/liquibase/master.xml

中的变更日志路径中删除

类路径：

）。这将允许您使用liquibase任务以外的其他liquibase任务。这应该在下一个版本（v4.6.2+）中修复。

与之相关，您需要从master.xml（位于

src/main/resources/config/liquibase/master.xml）中的变更日志路径中删除
类路径：
。这将允许您使用liquibase任务以外的其他liquibase任务。这应该在下一版本（v4.6.2+）中修复