我正在尝试在现有数据库和Spring JPA应用程序之间生成差异更改日志。生成初始changeLog现在是成功的，对于diff，我设法通过类路径问题（在StackOverflow答案的帮助下），但现在我被困在差异更改日志上。
这是我gradlew :dbinit:diffChangeLog上的错误：
:dbinit:diffChangeLog
liquibase-plugin: Running the 'main' activity...
INFO 11/7/16 7:54 AM: liquibase-hibernate: Reading hibernate configuration hibernate:spring:nu.yona.server.subscriptions.entities?dialect=org.hibernate.dialect.HSQLDialect
INFO 11/7/16 7:54 AM: liquibase-hibernate: Found package nu.yona.server.subscriptions.entities
INFO 11/7/16 7:54 AM: liquibase-hibernate: Found dialect org.hibernate.dialect.HSQLDialect
Unexpected error running Liquibase: Unable to resolve persistence unit root URL
SEVERE 11/7/16 7:54 AM: liquibase: Unable to resolve persistence unit root URL
liquibase.exception.DatabaseException: javax.persistence.PersistenceException: Unable to resolve persistence unit root URL
at liquibase.integration.commandline.CommandLineUtils.createDatabaseObject(CommandLineUtils.java:127)
at liquibase.integration.commandline.Main.createReferenceDatabaseFromCommandParams(Main.java:1283)
at liquibase.integration.commandline.Main.doMigration(Main.java:996)
at liquibase.integration.commandline.Main.run(Main.java:188)
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:498)
at org.codehaus.groovy.reflection.CachedMethod.invoke(CachedMethod.java:93)
at groovy.lang.MetaMethod.doMethodInvoke(MetaMethod.java:325)
at org.codehaus.groovy.runtime.callsite.StaticMetaMethodSite.invoke(StaticMetaMethodSite.java:46)
at org.codehaus.groovy.runtime.callsite.StaticMetaMethodSite.call(StaticMetaMethodSite.java:91)
at org.codehaus.groovy.runtime.callsite.CallSiteArray.defaultCall(CallSiteArray.java:48)
at org.codehaus.groovy.runtime.callsite.AbstractCallSite.call(AbstractCallSite.java:113)
at org.codehaus.groovy.runtime.callsite.AbstractCallSite.call(AbstractCallSite.java:125)
at org.liquibase.gradle.LiquibaseTask.runLiquibase(LiquibaseTask.groovy:97)
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:498)
at org.codehaus.groovy.reflection.CachedMethod.invoke(CachedMethod.java:93)
at groovy.lang.MetaMethod.doMethodInvoke(MetaMethod.java:325)
at org.codehaus.groovy.runtime.metaclass.ClosureMetaClass.invokeMethod(ClosureMetaClass.java:384)
at groovy.lang.MetaClassImpl.invokeMethod(MetaClassImpl.java:1024)
at org.codehaus.groovy.runtime.callsite.PogoMetaClassSite.callCurrent(PogoMetaClassSite.java:69)
at org.codehaus.groovy.runtime.callsite.CallSiteArray.defaultCallCurrent(CallSiteArray.java:52)
at org.codehaus.groovy.runtime.callsite.AbstractCallSite.callCurrent(AbstractCallSite.java:154)
at org.codehaus.groovy.runtime.callsite.AbstractCallSite.callCurrent(AbstractCallSite.java:166)
at org.liquibase.gradle.LiquibaseTask$_liquibaseAction_closure1.doCall(LiquibaseTask.groovy:52)
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:498)
at org.codehaus.groovy.reflection.CachedMethod.invoke(CachedMethod.java:93)
at groovy.lang.MetaMethod.doMethodInvoke(MetaMethod.java:325)
at org.codehaus.groovy.runtime.metaclass.ClosureMetaClass.invokeMethod(ClosureMetaClass.java:294)
at groovy.lang.MetaClassImpl.invokeMethod(MetaClassImpl.java:1024)
at groovy.lang.Closure.call(Closure.java:414)
at groovy.lang.Closure.call(Closure.java:430)
at org.codehaus.groovy.runtime.DefaultGroovyMethods.each(DefaultGroovyMethods.java:2030)
at org.codehaus.groovy.runtime.DefaultGroovyMethods.each(DefaultGroovyMethods.java:1890)
at org.codehaus.groovy.runtime.dgm$159.invoke(Unknown Source)
at org.codehaus.groovy.runtime.callsite.PojoMetaMethodSite$PojoMetaMethodSiteNoUnwrapNoCoerce.invoke(PojoMetaMethodSite.java:274)
at org.codehaus.groovy.runtime.callsite.PojoMetaMethodSite.call(PojoMetaMethodSite.java:56)
at org.codehaus.groovy.runtime.callsite.CallSiteArray.defaultCall(CallSiteArray.java:48)
at org.codehaus.groovy.runtime.callsite.AbstractCallSite.call(AbstractCallSite.java:113)
at org.codehaus.groovy.runtime.callsite.AbstractCallSite.call(AbstractCallSite.java:125)
at org.liquibase.gradle.LiquibaseTask.liquibaseAction(LiquibaseTask.groovy:46)
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:498)
at org.gradle.internal.reflect.JavaMethod.invoke(JavaMethod.java:75)
at org.gradle.api.internal.project.taskfactory.DefaultTaskClassInfoStore$StandardTaskAction.doExecute(DefaultTaskClassInfoStore.java:136)
at org.gradle.api.internal.project.taskfactory.DefaultTaskClassInfoStore$StandardTaskAction.execute(DefaultTaskClassInfoStore.java:129)
at org.gradle.api.internal.project.taskfactory.DefaultTaskClassInfoStore$StandardTaskAction.execute(DefaultTaskClassInfoStore.java:118)
at org.gradle.api.internal.AbstractTask$TaskActionWrapper.execute(AbstractTask.java:623)
at org.gradle.api.internal.AbstractTask$TaskActionWrapper.execute(AbstractTask.java:606)
at org.gradle.api.internal.tasks.execution.ExecuteActionsTaskExecuter.executeAction(ExecuteActionsTaskExecuter.java:80)
at org.gradle.api.internal.tasks.execution.ExecuteActionsTaskExecuter.executeActions(ExecuteActionsTaskExecuter.java:61)
at org.gradle.api.internal.tasks.execution.ExecuteActionsTaskExecuter.execute(ExecuteActionsTaskExecuter.java:46)
at org.gradle.api.internal.tasks.execution.PostExecutionAnalysisTaskExecuter.execute(PostExecutionAnalysisTaskExecuter.java:35)
at org.gradle.api.internal.tasks.execution.SkipUpToDateTaskExecuter.execute(SkipUpToDateTaskExecuter.java:64)
at org.gradle.api.internal.tasks.execution.ValidatingTaskExecuter.execute(ValidatingTaskExecuter.java:58)
at org.gradle.api.internal.tasks.execution.SkipEmptySourceFilesTaskExecuter.execute(SkipEmptySourceFilesTaskExecuter.java:52)
at org.gradle.api.internal.tasks.execution.SkipTaskWithNoActionsExecuter.execute(SkipTaskWithNoActionsExecuter.java:52)
at org.gradle.api.internal.tasks.execution.SkipOnlyIfTaskExecuter.execute(SkipOnlyIfTaskExecuter.java:53)
at org.gradle.api.internal.tasks.execution.ExecuteAtMostOnceTaskExecuter.execute(ExecuteAtMostOnceTaskExecuter.java:43)
at org.gradle.execution.taskgraph.DefaultTaskGraphExecuter$EventFiringTaskWorker.execute(DefaultTaskGraphExecuter.java:233)
at org.gradle.execution.taskgraph.DefaultTaskGraphExecuter$EventFiringTaskWorker.execute(DefaultTaskGraphExecuter.java:215)
at org.gradle.execution.taskgraph.AbstractTaskPlanExecutor$TaskExecutorWorker.processTask(AbstractTaskPlanExecutor.java:74)
at org.gradle.execution.taskgraph.AbstractTaskPlanExecutor$TaskExecutorWorker.run(AbstractTaskPlanExecutor.java:55)
at org.gradle.execution.taskgraph.DefaultTaskPlanExecutor.process(DefaultTaskPlanExecutor.java:32)
at org.gradle.execution.taskgraph.DefaultTaskGraphExecuter.execute(DefaultTaskGraphExecuter.java:113)
at org.gradle.execution.SelectedTaskExecutionAction.execute(SelectedTaskExecutionAction.java:37)
at org.gradle.execution.DefaultBuildExecuter.execute(DefaultBuildExecuter.java:37)
at org.gradle.execution.DefaultBuildExecuter.access$000(DefaultBuildExecuter.java:23)
at org.gradle.execution.DefaultBuildExecuter$1.proceed(DefaultBuildExecuter.java:43)
at org.gradle.execution.DryRunBuildExecutionAction.execute(DryRunBuildExecutionAction.java:32)
at org.gradle.execution.DefaultBuildExecuter.execute(DefaultBuildExecuter.java:37)
at org.gradle.execution.DefaultBuildExecuter.execute(DefaultBuildExecuter.java:30)
at org.gradle.initialization.DefaultGradleLauncher$4.run(DefaultGradleLauncher.java:186)
at org.gradle.internal.Factories$1.create(Factories.java:22)
at org.gradle.internal.progress.DefaultBuildOperationExecutor.run(DefaultBuildOperationExecutor.java:91)
at org.gradle.internal.progress.DefaultBuildOperationExecutor.run(DefaultBuildOperationExecutor.java:53)
at org.gradle.initialization.DefaultGradleLauncher.doBuildStages(DefaultGradleLauncher.java:183)
at org.gradle.initialization.DefaultGradleLauncher.access$200(DefaultGradleLauncher.java:33)
at org.gradle.initialization.DefaultGradleLauncher$1.create(DefaultGradleLauncher.java:112)
at org.gradle.initialization.DefaultGradleLauncher$1.create(DefaultGradleLauncher.java:106)
at org.gradle.internal.progress.DefaultBuildOperationExecutor.run(DefaultBuildOperationExecutor.java:91)
at org.gradle.internal.progress.DefaultBuildOperationExecutor.run(DefaultBuildOperationExecutor.java:63)
at org.gradle.initialization.DefaultGradleLauncher.doBuild(DefaultGradleLauncher.java:106)
at org.gradle.initialization.DefaultGradleLauncher.run(DefaultGradleLauncher.java:92)
at org.gradle.launcher.exec.GradleBuildController.run(GradleBuildController.java:66)
at org.gradle.tooling.internal.provider.ExecuteBuildActionRunner.run(ExecuteBuildActionRunner.java:28)
at org.gradle.launcher.exec.ChainingBuildActionRunner.run(ChainingBuildActionRunner.java:35)
at org.gradle.launcher.exec.InProcessBuildActionExecuter.execute(InProcessBuildActionExecuter.java:41)
at org.gradle.launcher.exec.InProcessBuildActionExecuter.execute(InProcessBuildActionExecuter.java:26)
at org.gradle.tooling.internal.provider.ContinuousBuildActionExecuter.execute(ContinuousBuildActionExecuter.java:79)
at org.gradle.tooling.internal.provider.ContinuousBuildActionExecuter.execute(ContinuousBuildActionExecuter.java:51)
at org.gradle.launcher.daemon.server.exec.ExecuteBuild.doBuild(ExecuteBuild.java:59)
at org.gradle.launcher.daemon.server.exec.BuildCommandOnly.execute(BuildCommandOnly.java:36)
at org.gradle.launcher.daemon.server.api.DaemonCommandExecution.proceed(DaemonCommandExecution.java:120)
at org.gradle.launcher.daemon.server.exec.WatchForDisconnection.execute(WatchForDisconnection.java:47)
at org.gradle.launcher.daemon.server.api.DaemonCommandExecution.proceed(DaemonCommandExecution.java:120)
at org.gradle.launcher.daemon.server.exec.ResetDeprecationLogger.execute(ResetDeprecationLogger.java:26)
at org.gradle.launcher.daemon.server.api.DaemonCommandExecution.proceed(DaemonCommandExecution.java:120)
at org.gradle.launcher.daemon.server.exec.RequestStopIfSingleUsedDaemon.execute(RequestStopIfSingleUsedDaemon.java:34)
at org.gradle.launcher.daemon.server.api.DaemonCommandExecution.proceed(DaemonCommandExecution.java:120)
at org.gradle.launcher.daemon.server.exec.ForwardClientInput$2.call(ForwardClientInput.java:74)
at org.gradle.launcher.daemon.server.exec.ForwardClientInput$2.call(ForwardClientInput.java:72)
at org.gradle.util.Swapper.swap(Swapper.java:38)
at org.gradle.launcher.daemon.server.exec.ForwardClientInput.execute(ForwardClientInput.java:72)
at org.gradle.launcher.daemon.server.api.DaemonCommandExecution.proceed(DaemonCommandExecution.java:120)
at org.gradle.launcher.daemon.server.exec.LogAndCheckHealth.execute(LogAndCheckHealth.java:55)
at org.gradle.launcher.daemon.server.api.DaemonCommandExecution.proceed(DaemonCommandExecution.java:120)
at org.gradle.launcher.daemon.server.exec.LogToClient.doBuild(LogToClient.java:60)
at org.gradle.launcher.daemon.server.exec.BuildCommandOnly.execute(BuildCommandOnly.java:36)
at org.gradle.launcher.daemon.server.api.DaemonCommandExecution.proceed(DaemonCommandExecution.java:120)
at org.gradle.launcher.daemon.server.exec.EstablishBuildEnvironment.doBuild(EstablishBuildEnvironment.java:72)
at org.gradle.launcher.daemon.server.exec.BuildCommandOnly.execute(BuildCommandOnly.java:36)
at org.gradle.launcher.daemon.server.api.DaemonCommandExecution.proceed(DaemonCommandExecution.java:120)
at org.gradle.launcher.daemon.server.exec.HintGCAfterBuild.execute(HintGCAfterBuild.java:44)
at org.gradle.launcher.daemon.server.api.DaemonCommandExecution.proceed(DaemonCommandExecution.java:120)
at org.gradle.launcher.daemon.server.exec.StartBuildOrRespondWithBusy$1.run(StartBuildOrRespondWithBusy.java:50)
at org.gradle.launcher.daemon.server.DaemonStateCoordinator$1.run(DaemonStateCoordinator.java:293)
at org.gradle.internal.concurrent.ExecutorPolicy$CatchAndRecordFailures.onExecute(ExecutorPolicy.java:54)
at org.gradle.internal.concurrent.StoppableExecutorImpl$1.run(StoppableExecutorImpl.java:40)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
at java.lang.Thread.run(Thread.java:745)
Caused by: javax.persistence.PersistenceException: Unable to resolve persistence unit root URL
at org.springframework.orm.jpa.persistenceunit.DefaultPersistenceUnitManager.determineDefaultPersistenceUnitRootUrl(DefaultPersistenceUnitManager.java:593)
at org.springframework.orm.jpa.persistenceunit.DefaultPersistenceUnitManager.preparePersistenceUnitInfos(DefaultPersistenceUnitManager.java:445)
at liquibase.ext.hibernate.database.HibernateSpringDatabase.buildConfigurationFromScanning(HibernateSpringDatabase.java:227)
at liquibase.ext.hibernate.database.HibernateSpringDatabase.buildConfiguration(HibernateSpringDatabase.java:55)
at liquibase.ext.hibernate.database.HibernateDatabase.setConnection(HibernateDatabase.java:46)
at liquibase.database.DatabaseFactory.findCorrectDatabaseImplementation(DatabaseFactory.java:131)
at liquibase.database.DatabaseFactory.openDatabase(DatabaseFactory.java:151)
at liquibase.integration.commandline.CommandLineUtils.createDatabaseObject(CommandLineUtils.java:85)
... 130 more
Caused by: java.io.FileNotFoundException: class path resource [] cannot be resolved to URL because it does not exist
at org.springframework.core.io.ClassPathResource.getURL(ClassPathResource.java:187)
at org.springframework.orm.jpa.persistenceunit.DefaultPersistenceUnitManager.determineDefaultPersistenceUnitRootUrl(DefaultPersistenceUnitManager.java:590)
... 137 more
For more information, use the --logLevel flag
:dbinit:diffChangeLog FAILED
FAILURE: Build failed with an exception.
* What went wrong:
Execution failed for task ':dbinit:diffChangeLog'.
> liquibase.exception.LiquibaseException: Unexpected error running Liquibase: Unable to resolve persistence unit root URL
* Try:
Run with --stacktrace option to get the stack trace. Run with --info or --debug option to get more log output.
BUILD FAILED
Total time: 3.522 secs
这是build.gradle：
description = 'Database initializer'
buildscript {
repositories {
mavenCentral()
}
dependencies {
classpath("org.springframework.boot:spring-boot-gradle-plugin:$project.ext.springBootVersion")
classpath("io.spring.gradle:dependency-management-plugin:0.6.1.RELEASE")
classpath('se.transmode.gradle:gradle-docker:1.2')
classpath 'net.researchgate:gradle-release:2.3.4'
classpath 'org.liquibase:liquibase-gradle-plugin:1.2.1'
classpath("org.hsqldb:hsqldb:2.3.3")
classpath("org.liquibase.ext:liquibase-hibernate4:3.6")
classpath("org.springframework.boot:spring-boot-starter-data-jpa:1.4.1.RELEASE")
classpath("org.springframework.batch:spring-batch-core:3.0.7.RELEASE")
}
}
apply plugin: 'java'
apply plugin: 'idea'
apply plugin: 'spring-boot'
apply plugin: 'io.spring.dependency-management'
apply plugin: 'docker'
apply plugin: 'net.researchgate.release'
apply plugin: 'liquibase'
jar {
baseName = 'DatabaseInitializer'
}
release {
failOnCommitNeeded = true
tagTemplate = 'adminservice-${version}'
git {
requireBranch = 'yd-40-changes-for-building|master'
}
}
dependencies {
compile project(":core")
compile("org.springframework.boot:spring-boot-starter-data-jpa:1.4.1.RELEASE")
compile("org.springframework.batch:spring-batch-core:3.0.7.RELEASE")
}
group = 'yonadev'
task buildDocker(type: Docker, dependsOn: bootRepackage) {
tag = "${project.group}/yonahsqldb"
push = true
applicationName = jar.baseName
dockerfile = file('src/main/docker/Dockerfile')
doFirst {
copy {
from bootRepackage
into stageDir
rename "${jar.baseName}-${jar.version}-${bootRepackage.classifier}", "${jar.baseName}"
}
copy {
from 'data'
into "$stageDir/data"
}
}
}
bootRun {
enableAssertions=true
systemProperties = [
'spring.datasource.url': "jdbc:hsqldb:file:../YonaDB",
'spring.batch.initializer.enabled': "true",
'spring.jpa.hibernate.ddl-auto': "update"
]
}
bootRepackage {
classifier = "full"
}
liquibase {
activities {
main {
changeLogFile 'changelog.groovy'
url 'jdbc:hsqldb:hsql://yonadbserver/xdb'
referenceUrl 'hibernate:spring:nu.yona.server.subscriptions.entities?dialect=org.hibernate.dialect.HSQLDialect'
username 'sa'
password ''
changeLogParameters([ myToken: 'myvalue',
second: 'secondValue'])
}
}
// runList = project.ext.runList
runList = 'main'
}
非常感谢您的帮助！
答案 0 :(得分：3)
我认为你已经运行gradle clean或者不能编译你的项目java 文件
如果您仔细阅读例外，肯定能够解决您的问题。
我可以看到你的例外层次结构，就像这样
liquibase: Unable to resolve persistence unit root URL
liquibase.exception.DatabaseException: javax.persistence.PersistenceException: Unable to resolve persistence unit root URL
这意味着您的编译类在类路径中不可用，并且liquibase仅扫描到您的类路径中。
现在，如果您在底部看到堆栈跟踪，它会明确抛出
FileNotFoundException，这意味着类路径中没有可用的类
Caused by: java.io.FileNotFoundException: class path resource [] cannot be resolved to URL because it does not exist
所以，现在来讨论你需要在使用diff之前编译所有你的类，然后liquibase在类路径上找到类并与数据库进行比较然后生成更改日志并将其附加到ur {{1}文件。
：）
请在针对您的java类
生成diffChangeLog之前运行gradle compile
答案 1 :(得分：0)
我决定忽略Liquibase Gradle插件并使用自定义Gradle任务as described by here Hazim。这就像一个魅力。