当我尝试使用内存 h2 数据库和 Jpa 配置 micronaut-data 时,出现以下异常。
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我使用 maven 作为构建工具从命令行创建了项目。我有以下
<dependency>
<groupId>io.micronaut.configuration</groupId>
<artifactId>micronaut-jdbc-tomcat</artifactId>
<scope>runtime</scope>
</dependency>
<dependency>
<groupId>com.h2database</groupId>
<artifactId>h2</artifactId>
<scope>runtime</scope>
</dependency>
<dependency>
<groupId>io.micronaut.data</groupId>
<artifactId>micronaut-data-hibernate-jpa</artifactId>
<version>1.0.0.M3</version>
</dependency>
而且我还添加了这样的注释处理器
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
......
<configuration>
...
<annotationProcessorPaths>
<path>
<groupId>io.micronaut</groupId>
<artifactId>micronaut-inject-java</artifactId>
<version>${micronaut.version}</version>
</path>
<path>
<groupId>io.micronaut</groupId>
<artifactId>micronaut-validation</artifactId>
<version>${micronaut.version}</version>
</path>
<path>
<groupId>io.micronaut.data</groupId>
<artifactId>micronaut-data-processor</artifactId>
<version>1.0.0.M3</version>
</path>
</annotationProcessorPaths>
</configuration>
.....
</plugin>
我的 Entity 类和 Repository 类与指南中提到的完全一样。当我尝试使用存储库进行保存时,出现此异常
18:16:37.787 [pool-1-thread-3] ERROR i.m.h.s.netty.RoutingInBoundHandler - Unexpected error occurred: No backing RepositoryOperations configured for repository. Check your configuration and try again
io.micronaut.context.exceptions.ConfigurationException: No backing RepositoryOperations configured for repository. Check your configuration and try again
..............................
Caused by: io.micronaut.context.exceptions.NoSuchBeanException: No bean of type [io.micronaut.data.operations.RepositoryOperations] exists. Make sure the bean is not disabled by bean requirements (enable trace logging for 'io.micronaut.context.condition' to check) and if the bean is enabled then ensure the class is declared a bean and annotation processing is enabled (for Java and Kotlin the 'micronaut-inject-java' dependency should be configured as an annotation processor).
我已经调查过了。这是完全不同的,它对我的问题没有帮助。
有趣的是,如果我改变 micronaut 数据注释过程的顺序或者我的意思是如果我这样放
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
......
<configuration>
...
<annotationProcessorPaths>
<path>
<groupId>io.micronaut</groupId>
<artifactId>micronaut-inject-java</artifactId>
<version>${micronaut.version}</version>
</path>
<path>
<groupId>io.micronaut</groupId>
<artifactId>micronaut-validation</artifactId>
<version>${micronaut.version}</version>
</path>
<path>
<groupId>io.micronaut.data</groupId>
<artifactId>micronaut-data-processor</artifactId>
<version>1.0.0.M3</version>
</path>
</annotationProcessorPaths>
</configuration>
.....
</plugin>
我得到一个不同的例外。
Internal Server Error: All possible Introduction advise exhausted and no implementation found for method: Iterable saveAll(Iterable entities)
任何指针都非常感谢。