从另一个模块引用存储库时出现 UnsatisfiedDependencyException

Question

I have a Kotlin Spring Boot application ( com.myapp.webapp.Application ) which uses a Repository bean defined in an external library ( com.myapp.engine.MyRepository ). Such repository is not a JpaRepository because I want to avoid JPA in this stage of the project, and only resorting to straight SQL queries, so I'm using Repository / @EnableJdbcRepositories :

package com.myapp.webapp

import org.springframework.boot.autoconfigure.SpringBootApplication
import org.springframework.boot.runApplication
import org.springframework.data.jdbc.repository.config.EnableJdbcRepositories

@SpringBootApplication(scanBasePackages = [
    "com.myapp.webapp",
    "com.myapp.engine",
])
@EnableJdbcRepositories(basePackages = ["com.myapp.engine"])
class MyApplication

fun main(args: Array<String>) {
    runApplication<MyApplication>(*args)
}

package com.myapp.engine.repository

import com.myapp.engine.MyType
import org.springframework.data.jdbc.repository.Query
import org.springframework.data.repository.Repository
import java.util.*

interface MyRepository: Repository<MyType, Int> {

    @Query("select * from my_type", nativeQuery=true)
    fun findAll(): List<MyType>

}

Such service is then @Autowire d in com.myapp.engine.service.MyService , but autowiring fails because no beans for MyRepository are found:

***************************
APPLICATION FAILED TO START
***************************

Description:

Parameter 0 of constructor in com.myapp.engine.service.MyService required a bean of type 'com.myapp.engine.repository.MyRepository' that could not be found.

The injection point has the following annotations:
    - @org.springframework.beans.factory.annotation.Autowired(required=true)


Action:

Consider defining a bean of type 'com.webapp.engine.repository.MyRepository' in your configuration.


Process finished with exit code 1

Reading Spring Data JDBC reference it looks like this approach should be valid. What am I doing wrong?

Answer 1

My issue was that I had multiple Repository candidates (because I also had spring-boot-starter-redis as a dependency). Removing it, or annotating with @Table my entity fixed the issue.