java - 如何修复jOOQ代码生成工具错误？

Question

我正在使用 Spring Boot 2.1.1 和 jOOQ codegen 工具 3.11.7。我有一个 Java 类，配置为稍微修改从 pom.xml 中的 MySQL 表名称派生的类名称:

<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 mvngenerate-sources 或 mvninstall 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)

该类就在那里(否则 IntelliJ 也会抛出错误)。 IDE 在幕后还做了什么其他事情来使其正常工作吗？

Answer 1

您可以按照 Lukas Eder 的建议编译该类并将其放入类路径中。为此，使用 maven-compiler-plugin 引入另一个执行并将其绑定(bind)到生成源阶段:

      <plugin>
         <groupId>org.apache.maven.plugins</groupId>
         <artifactId>maven-compiler-plugin</artifactId>
         <version>3.8.1</version>
         <executions>
         <execution>
              <phase>generate-sources</phase>
              <goals>
                <goal>compile</goal>
              </goals>
             <configuration>
                <source>1.8</source>
                <target>1.8</target>
                <includes>
                   <include>tb/database/jooq/custom/namingstrategies/*.java</include>
                </includes>
             </configuration>
         </execution>
         </executions>
      </plugin>