时间戳

首页 > 解决方案 > JHipster 7.1.0：无法使用 jdl-import，在寻找 otherEntity User 时抛出错误

microservices - JHipster 7.1.0：无法使用 jdl-import，在寻找 otherEntity User 时抛出错误

问题描述

我使用 java Openjdk 11.0.11、JHipster 7.1.0 和节点 v14.17.3 我正在创建一个简单的微服务（一个后端和一个网关），但 JHipster 无法使用 jdl 命令（jdl-import）创建，它抛出

Error: Error looking for otherEntity User at Tag,Product,Blog,Post
    at /Users/carestra/.nvm/versions/node/v14.17.3/lib/node_modules/generator-jhipster/generators/entity/index.js:560:19
    at Array.forEach (<anonymous>)
    at EntityGenerator.loadRelationships (/Users/carestra/.nvm/versions/node/v14.17.3/lib/node_modules/generator-jhipster/generators/entity/index.js:556:36)
    at Object.<anonymous> (/Users/carestra/.nvm/versions/node/v14.17.3/lib/node_modules/generator-jhipster/node_modules/yeoman-generator/lib/index.js:1024:25)
    at /Users/carestra/.nvm/versions/node/v14.17.3/lib/node_modules/generator-jhipster/node_modules/run-async/index.js:49:25
    at new Promise (<anonymous>)
    at /Users/carestra/.nvm/versions/node/v14.17.3/lib/node_modules/generator-jhipster/node_modules/run-async/index.js:26:19
    at runLoop.add.once.once (/Users/carestra/.nvm/versions/node/v14.17.3/lib/node_modules/generator-jhipster/node_modules/yeoman-generator/lib/index.js:1025:11)
    at Immediate.<anonymous> (/Users/carestra/.nvm/versions/node/v14.17.3/lib/node_modules/generator-jhipster/node_modules/grouped-queue/lib/subqueue.js:48:34)
    at processImmediate (internal/timers.js:464:21)
INFO! Generator app child process exited with code 1
ERROR! Error executing app --reproducible --no-force --with-entities --no-dry-run --no-whitespace --no-bail --no-skip-regenerate --no-skip-yo-resolve --from-jdl --no-skip-cache --no-skip-install --no-force-install --no-ask-answered --no-defaults --no-skip-git
Error: Error executing app --reproducible --no-force --with-entities --no-dry-run --no-whitespace --no-bail --no-skip-regenerate --no-skip-yo-resolve --from-jdl --no-skip-cache --no-skip-install --no-force-install --no-ask-answered --no-defaults --no-skip-git
    at ChildProcess.<anonymous> (/Users/carestra/.nvm/versions/node/v14.17.3/lib/node_modules/generator-jhipster/cli/import-jdl.js:194:16)
    at ChildProcess.emit (events.js:375:28)
    at Process.ChildProcess._handle.onexit (internal/child_process.js:277:12)

它确实创建了文件夹 blogBackend、blogGateWat 和 docker-compose .... 但文件夹 blogBackend 是空的。

如果我移动到 blogGateWay 并运行：mvn clean install

我也有例外；

[INFO] -------------------------------------------------------
[INFO]  T E S T S
[INFO] -------------------------------------------------------
[ERROR] java.util.ServiceConfigurationError: org.junit.platform.launcher.TestExecutionListener: Provider reactor.blockhound.junit.platform.BlockHoundTestExecutionListener could not be instantiated
[INFO]
[INFO] Results:
[INFO]
[INFO] Tests run: 0, Failures: 0, Errors: 0, Skipped: 0
[INFO]
[INFO] ------------------------------------------------------------------------
[INFO] BUILD FAILURE
[INFO] ------------------------------------------------------------------------
[INFO] Total time:  01:16 min
[INFO] Finished at: 2021-07-20T09:32:12+02:00
[INFO] ------------------------------------------------------------------------
[ERROR] Failed to execute goal org.apache.maven.plugins:maven-surefire-plugin:3.0.0-M5:test (default-test) on project blog-gate-way: There are test failures.
[ERROR]
[ERROR] Please refer to /Users/carestra/_A/repos/JHipster/microservices/blog1/blogGateWay/target/surefire-reports for the individual test results.
[ERROR] Please refer to dump files (if any exist) [date].dump, [date]-jvmRun[N].dump and [date].dumpstream.
[ERROR] There was an error in the forked process
[ERROR] java.util.ServiceConfigurationError: org.junit.platform.launcher.TestExecutionListener: Provider reactor.blockhound.junit.platform.BlockHoundTestExecutionListener could not be instantiated
[ERROR] org.apache.maven.surefire.booter.SurefireBooterForkException: There was an error in the forked process
[ERROR] java.util.ServiceConfigurationError: org.junit.platform.launcher.TestExecutionListener: Provider reactor.blockhound.junit.platform.BlockHoundTestExecutionListener could not be instantiated
[ERROR]     at org.apache.maven.plugin.surefire.booterclient.ForkStarter.fork(ForkStarter.java:733)
[ERROR]     at org.apache.maven.plugin.surefire.booterclient.ForkStarter.run(ForkStarter.java:305)
[ERROR]     at org.apache.maven.plugin.surefire.booterclient.ForkStarter.run(ForkStarter.java:265)
[ERROR]     at org.apache.maven.plugin.surefire.AbstractSurefireMojo.executeProvider(AbstractSurefireMojo.java:1314)
[ERROR]     at org.apache.maven.plugin.surefire.AbstractSurefireMojo.executeAfterPreconditionsChecked(AbstractSurefireMojo.java:1159)
[ERROR]     at org.apache.maven.plugin.surefire.AbstractSurefireMojo.execute(AbstractSurefireMojo.java:932)
[ERROR]     at org.apache.maven.plugin.DefaultBuildPluginManager.executeMojo(DefaultBuildPluginManager.java:137)
[ERROR]     at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:210)
[ERROR]     at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:156)
[ERROR]     at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:148)
[ERROR]     at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject(LifecycleModuleBuilder.java:117)
[ERROR]     at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject(LifecycleModuleBuilder.java:81)
[ERROR]     at org.apache.maven.lifecycle.internal.builder.singlethreaded.SingleThreadedBuilder.build(SingleThreadedBuilder.java:56)
[ERROR]     at org.apache.maven.lifecycle.internal.LifecycleStarter.execute(LifecycleStarter.java:128)
[ERROR]     at org.apache.maven.DefaultMaven.doExecute(DefaultMaven.java:305)
[ERROR]     at org.apache.maven.DefaultMaven.doExecute(DefaultMaven.java:192)
[ERROR]     at org.apache.maven.DefaultMaven.execute(DefaultMaven.java:105)
[ERROR]     at org.apache.maven.cli.MavenCli.execute(MavenCli.java:957)
[ERROR]     at org.apache.maven.cli.MavenCli.doMain(MavenCli.java:289)
[ERROR]     at org.apache.maven.cli.MavenCli.main(MavenCli.java:193)
[ERROR]     at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
[ERROR]     at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
[ERROR]     at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
[ERROR]     at java.base/java.lang.reflect.Method.invoke(Method.java:566)
[ERROR]     at org.codehaus.plexus.classworlds.launcher.Launcher.launchEnhanced(Launcher.java:282)
[ERROR]     at org.codehaus.plexus.classworlds.launcher.Launcher.launch(Launcher.java:225)
[ERROR]     at org.codehaus.plexus.classworlds.launcher.Launcher.mainWithExitCode(Launcher.java:406)
[ERROR]     at org.codehaus.plexus.classworlds.launcher.Launcher.main(Launcher.java:347)
[ERROR]
[ERROR] -> [Help 1]
[ERROR]

我会将实例化的错误作为一个单独的问题发布。

知道如何解决这个问题吗？

这是我使用的 jdl 文件 ( blog.jdl )：

application {
  config {
    applicationType gateway,
    baseName blogGateWay,
    packageName com.carestra.learn.jhipster.gateway,
    authenticationType jwt,
    serviceDiscoveryType eureka,
    buildTool maven,
    reactive true, // default true
    skipClient false,
    skipServer false,
    skipUserManagement false,
    databaseType sql,
    prodDatabaseType postgresql,
    devDatabaseType h2Disk,
    cacheProvider ehcache,
    testFrameworks [cypress]
  }

  entities *
}

application {
  config {
    applicationType microservice,
    baseName blogBackend,
    packageName com.carestra.learn.jhipster.backend,
    authenticationType jwt,
    serviceDiscoveryType eureka,
    buildTool maven,
    reactive true,
    skipClient true,
    skipUserManagement true,
    clientFramework react,
    databaseType sql,
    prodDatabaseType postgresql,
    devDatabaseType h2Disk,
    cacheProvider hazelcast,
    enableHibernateCache true,
    testFrameworks [cypress]
  }

  entities *
}

entity Blog {
  name String required minlength(3)
  handle String required minlength(2)
}

entity Post {
  title String required
  content TextBlob required
  date Instant required
}

entity Tag {
  name String required minlength(2)
}

entity Product {
  title String required
  price BigDecimal required min(0)
  image ImageBlob
}

relationship ManyToOne {
  Blog{user(login)} to User
  Post{blog(name)} to Blog
}

relationship ManyToMany {
  Post{tag(name)} to Tag{post}
}


microservice * with blogBackend

deployment {
  deploymentType docker-compose
  appsFolders [blogGateWay, blogBackend]
  dockerRepositoryName "carestra"
  serviceDiscoveryType eureka
}

重现步骤： 1 - 创建文件夹 blog 2 - 移动到文件夹 blog 3 - 运行：jhipster jdl blog.jdl 4 - 移动到 blogGateWay 5 - 运行：mvn clean install

运行：jhpster info om 文件夹博客给我；

jhipster info
INFO! Using JHipster version installed globally
Welcome to the JHipster Information Sub-Generator

##### **JHipster Version(s)**

```
/<intentionally removed info>/blog
└── (empty)

```

cat: no such file or directory: .yo-rc.json

##### **JHipster configuration, a `.yo-rc.json` file generated in the root folder**


<details>
<summary>.yo-rc.json file</summary>
<pre>

</pre>
</details>


##### **JDL for the Entity configuration(s) `entityName.json` files generated in the `.jhipster` directory**

<details>
<summary>JDL entity definitions</summary>

<pre>

</pre>
</details>


##### **Environment and Tools**

openjdk version "11.0.11" 2021-04-20
OpenJDK Runtime Environment AdoptOpenJDK-11.0.11+9 (build 11.0.11+9)
Eclipse OpenJ9 VM AdoptOpenJDK-11.0.11+9 (build openj9-0.26.0, JRE 11 Mac OS X amd64-64-Bit Compressed References 20210421_957 (JIT enabled, AOT enabled)
OpenJ9   - b4cc246d9
OMR      - 162e6f729
JCL      - 7796c80419 based on jdk-11.0.11+9)

git version 2.23.0

node: v14.17.3

npm: 6.14.13

Docker version 20.10.7, build f0df350

docker-compose version 1.29.2, build 5becea4c


No change to package.json was detected. No package manager install will be executed.
Congratulations, JHipster execution is complete!
Sponsored with ❤️  by @oktadev.

运行：jhpster info om 文件夹 blogGateWay 给我；

jhipster info
INFO! Using JHipster version installed locally in current project's node_modules
Welcome to the JHipster Information Sub-Generator

##### **JHipster Version(s)**

```
blog-gate-way@0.0.1-SNAPSHOT /<intentional removed>/blog/blogGateWay
└── (empty)

```


##### **JHipster configuration, a `.yo-rc.json` file generated in the root folder**


<details>
<summary>.yo-rc.json file</summary>
<pre>
{
  "generator-jhipster": {
    "authenticationType": "jwt",
    "clientFramework": "angularX",
    "serverPort": "8080",
    "serviceDiscoveryType": "eureka",
    "skipUserManagement": false,
    "withAdminUi": true,
    "baseName": "blogGateWay",
    "buildTool": "maven",
    "databaseType": "sql",
    "devDatabaseType": "h2Disk",
    "cacheProvider": "no",
    "enableHibernateCache": false,
    "enableSwaggerCodegen": false,
    "enableTranslation": true,
    "jhiPrefix": "jhi",
    "languages": ["en"],
    "messageBroker": false,
    "prodDatabaseType": "postgresql",
    "searchEngine": false,
    "skipClient": false,
    "testFrameworks": ["cypress"],
    "websocket": false,
    "applicationType": "gateway",
    "packageName": "com.carestra.learn.jhipster.gateway",
    "packageFolder": "com/carestra/learn/jhipster/gateway",
    "reactive": true,
    "skipServer": false,
    "jhipsterVersion": "7.1.0",
    "clientPackageManager": "npm",
    "dtoSuffix": "DTO",
    "entitySuffix": "",
    "clientTheme": "none",
    "clientThemeVariant": "",
    "applicationIndex": 0,
    "applications": {
      "blogBackend": {
        "serverPort": "8081",
        "applicationIndex": 1
      }
    },
    "skipCheckLengthOfIdentifier": false,
    "skipFakeData": false,
    "blueprints": [],
    "otherModules": [],
    "pages": [],
    "nativeLanguage": "en",
    "creationTimestamp": 1626765856461,
    "jwtSecretKey": "YourJWTSecretKeyWasReplacedByThisMeaninglessTextByTheJHipsterInfoCommandForObviousSecurityReasons",
    "devServerPort": 4200,
    "entities": ["Tag", "Product", "Blog", "Post"],
    "lastLiquibaseTimestamp": 1626766096000
  }
}

</pre>
</details>


##### **JDL for the Entity configuration(s) `entityName.json` files generated in the `.jhipster` directory**

<details>
<summary>JDL entity definitions</summary>

<pre>
entity Tag {
  name String required minlength(2)
}
entity Product {
  title String required
  price BigDecimal required min(0)
  image ImageBlob
}
entity Blog {
  name String required minlength(3)
  handle String required minlength(2)
}
entity Post {
  title String required
  content TextBlob required
  date Instant required
}
relationship ManyToOne {
  Blog{user(login)} to User
  Post{blog(name)} to Blog
}
relationship ManyToMany {
  Post{tag(name)} to Tag{post}
}

microservice Tag, Product, Blog, Post with blogBackend
clientRootFolder Tag, Product, Blog, Post with blogBackend

</pre>
</details>


##### **Environment and Tools**

openjdk version "11.0.11" 2021-04-20
OpenJDK Runtime Environment AdoptOpenJDK-11.0.11+9 (build 11.0.11+9)
Eclipse OpenJ9 VM AdoptOpenJDK-11.0.11+9 (build openj9-0.26.0, JRE 11 Mac OS X amd64-64-Bit Compressed References 20210421_957 (JIT enabled, AOT enabled)
OpenJ9   - b4cc246d9
OMR      - 162e6f729
JCL      - 7796c80419 based on jdk-11.0.11+9)

git version 2.23.0

node: v14.17.3

npm: 6.14.13

Docker version 20.10.7, build f0df350

docker-compose version 1.29.2, build 5becea4c


No change to package.json was detected. No package manager install will be executed.
Congratulations, JHipster execution is complete!
Sponsored with ❤️  by @oktadev.

标签： microservicesjhipster

解决方案

发生错误是因为您使用的是 JWT 身份验证类型而不是 OAuth2。

对于 OAuth2，微服务中有一种机制可以从令牌中提取用户数据并将其保存到服务的数据库中。

不幸的是，我找不到任何关于此的文档，因此我阅读了 https://github.com/jhipster/generator-jhipster/blob/main/utils/entity.js上的代码，其中测试以确定是否激活此用户快照是：

  entityWithConfig.saveUserSnapshot =
    entityWithConfig.applicationType === MICROSERVICE &&
    entityWithConfig.authenticationType === OAUTH2 &&
    hasBuiltInUserField &&
    entityWithConfig.dto === NO_MAPPER;

可以看到，还有一个条件就是不使用 DTO。

这种机制有一些限制，因为只有在调用服务 API 时才会更新用户的数据，您可以想象这样的情况：用户已在网关中更新，而后台作业正在使用用户的旧版本的服务中运行。

对于 JWT，这还没有实现，因为令牌不包含足够的用户数据，它只包含登录名和角色。

因此，使用 JWT，您能否在 Blog 中仅存储用户的 ID（或登录名）而不定义与用户实体的关系，因为它仅存在于网关数据库中。

推荐阅读