Question

只需按照示例Blog应用程序（http://gist.asciidoctor.org/?github-mraible/jhipster5-demo//README.adoc）试用JHipster v6.0.1。选择Gradle作为构建工具，在MariaDB进行开发和生产的情况下，liquibase任务失败。

安装开发环境：
- 安装MariaDB 10.3
- 安装JDK 11并相应地设置环境变量/路径
- 安装节点（10.15.3）=> npm v6.4.1
- 安装纱线（1.15.2）
- 启动一个shell，然后在命令行中：
  - 安装Yoeman：npm install -g yo
  - 安装JHipster：npm install -g generator-jhipster
创建一个新目录blog，cd进入其中并键入：jhipster
选择与上面链接的教程几乎相同的选项，同时在开发和生产中使用MariaDB，并使用Gradle作为构建工具。
启动服务器：./gradlew
运行：yarn start

一切正常。数据库表已按预期创建和填充，并且Web应用程序运行良好。

现在，当我停止服务器并尝试运行任何liquibase任务时，我会遇到相同的错误。例如，在命令行上运行：./gradlew liquibaseClearChecksums将导致：

> Task :liquibaseClearChecksums FAILED

During the build, one or more dependencies that were declared without a version failed to resolve:
    org.mariadb.jdbc:mariadb-java-client:

Did you forget to apply the io.spring.dependency-management plugin to the blog project?


FAILURE: Build failed with an exception.

* What went wrong:
Execution failed for task ':liquibaseClearChecksums'.
> Could not resolve all files for configuration ':liquibaseRuntime'.
   > Could not find org.mariadb.jdbc:mariadb-java-client:.
     Required by:
         project :

* Try:
Run with --stacktrace option to get the stack trace. Run with --info or --debug option to get more log output. Run with --scan to get full insights.

* Get more help at https://help.gradle.org

BUILD FAILED in 1s
1 actionable task: 1 executed

stacktrace提供了更多信息：

Could not resolve all files for configuration ':liquibaseRuntime'.
> Could not find org.mariadb.jdbc:mariadb-java-client:.
  Required by:
      project :

org.gradle.api.tasks.TaskExecutionException: Execution failed for task ':liquibaseClearChecksums'.
Caused by: org.gradle.api.internal.artifacts.ivyservice.DefaultLenientConfiguration$ArtifactResolveException: Could not resolve all files for configuration ':liquibaseRuntime'.
Caused by: org.gradle.internal.resolve.ModuleVersionNotFoundException: 
Could not find org.mariadb.jdbc:mariadb-java-client:.
Required by:
    project :

在Windows 10和Linux openSUSE 15上，我得到相同的结果。但是，当使用Maven时，liquibase任务可以正常工作。这就是我吗有人对为什么有任何想法吗？

[JHipster：6.0.1; JDK11; MariaDB 10.3.14;节点v10.15.3;纱线v1.15.2; npm v6.9.0; Gradle v5.4.1]

PS ：删除JHipster 6.0.1，然后安装v5.8.2（npm install -g generator-jhipster@5.8.2），重复上述过程，Gradle liquibase任务可以正常工作！我认为这是新的JHipster 6.0.1部署中的错误...我应该/如何向开发团队报告？有临时修复的想法吗？

还要花时间比较两个版本（5.8.2和6.0.1）中的build.gradle文件；它们是完全不同的，除了明显的错误之外，没有其他事情对我有帮助，除了：5.8.2版本直接引用了io.spring.dependency-management插件，而6.0.1版本没有...

Answer 1

我遇到了同样的问题，并禁用了“ cacheProvider no”缓存。当您运行该应用程序时，二级缓存存在另一个问题，我认为这是由于数据库驱动程序所致。希望对您有帮助！

Answer 2

好吧！我有解决办法...

我在+文件中添加了以下build.gradle行（从第28行开始）：

    id "org.sonarqube" version "2.7"
+   id "io.spring.dependency-management" version "1.0.7.RELEASE"
    //jhipster-needle-gradle-plugins - JHipster will add additional gradle plugins here
  }

  sourceCompatibility=1.8
  targetCompatibility=1.8
  assert System.properties["java.specification.version"] == "1.8" || "11" || "12"

  apply plugin: "org.springframework.boot"
+ apply plugin: "io.spring.dependency-management"
  apply plugin: "propdeps"

我选择了io.spring.dependency-management 1.0.7版，因为the Gradle plugin page将其引用为最新版本（在撰写本文时）。

我现在可以成功运行./gradlew liquibaseClearChecksums。

运行./gradlew liquibaseDiffChangeLog失败。打开stacktrace时，出现以下错误：

:liquibaseDiffChangeLog FAILED
liquibase-plugin: Running the 'main' activity...
Starting Liquibase at Tue, 21 May 2019 07:16:59 PDT (version 3.6.3 built at 2019-01-29 11:34:48)
Unexpected error running Liquibase: The option --referenceUrl is required.
liquibase.exception.CommandLineParsingException: The option --referenceUrl is required.
    at liquibase.integration.commandline.Main.createReferenceDatabaseFromCommandParams(Main.java:1419)
    at liquibase.integration.commandline.Main.doMigration(Main.java:1026)
    at liquibase.integration.commandline.Main.run(Main.java:199)
    at liquibase.integration.commandline.Main.main(Main.java:137)

要解决此问题，我将liquibase / activities / diffLog referenceUrl参数复制/粘贴到liquibase / activities / { {1}}部分（请参见以下main行）：

我现在可以成功运行liquibase { activities { main { driver "org.mariadb.jdbc.Driver" url "jdbc:mariadb://localhost:3306/blog" username "<username>" password "<password>" changeLogFile "src/main/resources/config/liquibase/master.xml" defaultSchemaName "" logLevel "debug" classpath "src/main/resources/" + referenceUrl "hibernate:spring:org.jhipster.blog.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" }。通过这些更改，我成功地在Linux和Windows 10上测试了liquibase任务。

我是唯一注意到这一点的人吗？ JHipster团队没有注意到这一点吗？是否未测试JHipster / Gradle / liquibase配置？我的解决方案是完整的解决方案吗？

对JHipster / Gradle / liquibase配置有经验的人可以提供一些见识/确认吗？

JHipster 6.0.1：Liquibase任务失败

2 个答案: