如何修复jOOQ代码生成工具错误？

Question

我正在使用带有jOOQ codegen工具3.11.7的Spring Boot 2.1.1。我有一个Java类配置为稍微修改从pom.xml中的MySQL表名派生的类名：

<generator>
  <target>
    <packageName>com.example.foglight.db</packageName>
    <directory>src/main/java</directory>
  </target>
  <database>
    <excludes>
      flyway_schema_history
      | information_schema.*
    </excludes>
    <inputSchema>${dbName}</inputSchema>
    <outputSchemaToDefault>true</outputSchemaToDefault>
    <forcedTypes>
      <forcedType>
        <userType>java.util.UUID</userType>
        <binding>com.example.foglight.config.db.MysqlUuidBinding</binding>
        <types>BINARY\(16\)</types>
      </forcedType>
    </forcedTypes>
  </database>
  <generate>
    <deprecationOnUnknownTypes>false</deprecationOnUnknownTypes>
    <pojos>true</pojos>
  </generate>
  <!-- The default code generator. You can override this one, to generate your own code style
        Defaults to org.jooq.codegen.JavaGenerator -->
  <name>org.jooq.codegen.JavaGenerator</name>
  <!-- The naming strategy used for class and field names.
        You may override this with your custom naming strategy. Some examples follow
        Defaults to org.jooq.codegen.DefaultGeneratorStrategy -->
  <strategy>
 <name>com.example.foglight.config.db.DatabaseModelNamingStrategy</name>
  </strategy>
</generator>

当我从IntelliJ构建/运行应用程序时，一切正常，但是当我在同一环境中从命令行运行mvn generate-sources或mvn install时，我收到以下错误：

[ERROR] Failed to execute goal org.jooq:jooq-codegen-maven:3.11.7:generate (default) on project foglight: Error running jOOQ code generation tool: com.example.foglight.config.db.DatabaseModelNamingStrategy -> [Help 1]
org.apache.maven.lifecycle.LifecycleExecutionException: Failed to execute goal org.jooq:jooq-codegen-maven:3.11.7:generate (default) on project foglight: Error running jOOQ code generation tool

详细解释如下：

Caused by: java.lang.ClassNotFoundException: com.example.foglight.config.db.DatabaseModelNamingStrategy
    at java.net.URLClassLoader.findClass (URLClassLoader.java:471)
    at java.lang.ClassLoader.loadClass (ClassLoader.java:588)
    at java.lang.ClassLoader.loadClass (ClassLoader.java:521)
    at org.jooq.codegen.GenerationTool.loadClass (GenerationTool.java:819)
    at org.jooq.codegen.GenerationTool.run (GenerationTool.java:352)
    at org.jooq.codegen.GenerationTool.generate (GenerationTool.java:220)
    at org.jooq.codegen.maven.Plugin.execute (Plugin.java:197)

这个类在那里（否则IntelliJ也会抛出错误）。 IDE是否还有其他更多工作要做？

Answer 1

jOOQ代码生成器必须通过类路径访问您的生成器策略，这意味着必须在运行代码生成器之前编译它。由于代码生成器通常在包含它的Maven模块的编译阶段之前运行，因此您必须将生成器策略提取到另一个模块中以确保它之前被编译。