Spring Data JDBC - 无法安全地识别存储库候选的存储分配

Question

我对提交做了一些更改，突然之间，我的 spring 程序似乎无法初始化实体并将它们链接到存储库。当我启动 spring 时，我将其作为我的日志：

2022-07-10 16:39:17.137  INFO 18040 --- [  restartedMain] com.vendify.BackendDbApplication         : Starting BackendDbApplication using Java 17.0.2 on DESKTOP-HSDNP64 with PID 18040 (applicaiton started by (my name) in directory)
2022-07-10 16:39:17.140  INFO 18040 --- [  restartedMain] com.vendify.BackendDbApplication         : No active profile set, falling back to default profiles: default
2022-07-10 16:39:17.186  INFO 18040 --- [  restartedMain] .e.DevToolsPropertyDefaultsPostProcessor : Devtools property defaults active! Set 'spring.devtools.add-properties' to 'false' to disable
2022-07-10 16:39:17.187  INFO 18040 --- [  restartedMain] .e.DevToolsPropertyDefaultsPostProcessor : For additional web related logging consider setting the 'logging.level.web' property to 'DEBUG'
2022-07-10 16:39:18.193  INFO 18040 --- [  restartedMain] .s.d.r.c.RepositoryConfigurationDelegate : Multiple Spring Data modules found, entering strict repository configuration mode!
2022-07-10 16:39:18.194  INFO 18040 --- [  restartedMain] .s.d.r.c.RepositoryConfigurationDelegate : Bootstrapping Spring Data JDBC repositories in DEFAULT mode.
2022-07-10 16:39:18.240  INFO 18040 --- [  restartedMain] .RepositoryConfigurationExtensionSupport : Spring Data JDBC - Could not safely identify store assignment for repository candidate interface com.vendify.Repositories.Auth0TokensCacheRepository. If you want this repository to be a JDBC repository, consider annotating your entities with one of these annotations: org.springframework.data.relational.core.mapping.Table.
2022-07-10 16:39:18.242  INFO 18040 --- [  restartedMain] .RepositoryConfigurationExtensionSupport : Spring Data JDBC - Could not safely identify store assignment for repository candidate interface com.vendify.Repositories.ItemIndexRepository. If you want this repository to be a JDBC repository, consider annotating your entities with one of these annotations: org.springframework.data.relational.core.mapping.Table.
2022-07-10 16:39:18.244  INFO 18040 --- [  restartedMain] .RepositoryConfigurationExtensionSupport : Spring Data JDBC - Could not safely identify store assignment for repository candidate interface com.vendify.Repositories.ItemsRepository. If you want this repository to be a JDBC repository, consider annotating your entities with one of these annotations: org.springframework.data.relational.core.mapping.Table.
2022-07-10 16:39:18.246  INFO 18040 --- [  restartedMain] .RepositoryConfigurationExtensionSupport : Spring Data JDBC - Could not safely identify store assignment for repository candidate interface com.vendify.Repositories.LoggingRepository. If you want this repository to be a JDBC repository, consider annotating your entities with one of these annotations: org.springframework.data.relational.core.mapping.Table.
2022-07-10 16:39:18.248  INFO 18040 --- [  restartedMain] .RepositoryConfigurationExtensionSupport : Spring Data JDBC - Could not safely identify store assignment for repository candidate interface com.vendify.Repositories.SerialsRepository. If you want this repository to be a JDBC repository, consider annotating your entities with one of these annotations: org.springframework.data.relational.core.mapping.Table.
2022-07-10 16:39:18.251  INFO 18040 --- [  restartedMain] .RepositoryConfigurationExtensionSupport : Spring Data JDBC - Could not safely identify store assignment for repository candidate interface com.vendify.Repositories.TransactionsRepository. If you want this repository to be a JDBC repository, consider annotating your entities with one of these annotations: org.springframework.data.relational.core.mapping.Table.
2022-07-10 16:39:18.253  INFO 18040 --- [  restartedMain] .RepositoryConfigurationExtensionSupport : Spring Data JDBC - Could not safely identify store assignment for repository candidate interface com.vendify.Repositories.ValidUsersRepository. If you want this repository to be a JDBC repository, consider annotating your entities with one of these annotations: org.springframework.data.relational.core.mapping.Table.
2022-07-10 16:39:18.255  INFO 18040 --- [  restartedMain] .RepositoryConfigurationExtensionSupport : Spring Data JDBC - Could not safely identify store assignment for repository candidate interface com.vendify.Repositories.VendorsRepository. If you want this repository to be a JDBC repository, consider annotating your entities with one of these annotations: org.springframework.data.relational.core.mapping.Table.
2022-07-10 16:39:18.256  INFO 18040 --- [  restartedMain] .s.d.r.c.RepositoryConfigurationDelegate : Finished Spring Data repository scanning in 58 ms. Found 0 JDBC repository interfaces.
2022-07-10 16:39:18.266  INFO 18040 --- [  restartedMain] .s.d.r.c.RepositoryConfigurationDelegate : Multiple Spring Data modules found, entering strict repository configuration mode!
2022-07-10 16:39:18.267  INFO 18040 --- [  restartedMain] .s.d.r.c.RepositoryConfigurationDelegate : Bootstrapping Spring Data JPA repositories in DEFAULT mode.
2022-07-10 16:39:18.329  INFO 18040 --- [  restartedMain] .s.d.r.c.RepositoryConfigurationDelegate : Finished Spring Data repository scanning in 51 ms. Found 8 JPA repository interfaces.
2022-07-10 16:39:19.172  INFO 18040 --- [  restartedMain] o.s.b.w.embedded.tomcat.TomcatWebServer  : Tomcat initialized with port(s): 8081 (http)
2022-07-10 16:39:19.184  INFO 18040 --- [  restartedMain] o.apache.catalina.core.StandardService   : Starting service [Tomcat]
2022-07-10 16:39:19.184  INFO 18040 --- [  restartedMain] org.apache.catalina.core.StandardEngine  : Starting Servlet engine: [Apache Tomcat/9.0.52]
2022-07-10 16:39:19.275  INFO 18040 --- [  restartedMain] o.a.c.c.C.[Tomcat].[localhost].[/]       : Initializing Spring embedded WebApplicationContext
2022-07-10 16:39:19.276  INFO 18040 --- [  restartedMain] w.s.c.ServletWebServerApplicationContext : Root WebApplicationContext: initialization completed in 2089 ms
2022-07-10 16:39:19.754  INFO 18040 --- [  restartedMain] o.f.c.internal.license.VersionPrinter    : Flyway Community Edition 7.7.3 by Redgate
2022-07-10 16:39:19.760  INFO 18040 --- [  restartedMain] com.zaxxer.hikari.HikariDataSource       : HikariPool-1 - Starting...
2022-07-10 16:39:20.192  INFO 18040 --- [  restartedMain] com.zaxxer.hikari.HikariDataSource       : HikariPool-1 - Start completed.
2022-07-10 16:39:20.240  INFO 18040 --- [  restartedMain] o.f.c.i.database.base.DatabaseType       : Database: jdbc:mysql://localhost:3306/vendify (MySQL 8.0)
2022-07-10 16:39:20.276  INFO 18040 --- [  restartedMain] o.f.core.internal.command.DbValidate     : Successfully validated 1 migration (execution time 00:00.015s)
2022-07-10 16:39:20.284  INFO 18040 --- [  restartedMain] o.f.core.internal.command.DbMigrate      : Current version of schema `vendify`: 1
2022-07-10 16:39:20.285  INFO 18040 --- [  restartedMain] o.f.core.internal.command.DbMigrate      : Schema `vendify` is up to date. No migration necessary.
2022-07-10 16:39:20.502  INFO 18040 --- [  restartedMain] o.hibernate.jpa.internal.util.LogHelper  : HHH000204: Processing PersistenceUnitInfo [name: default]
2022-07-10 16:39:20.564  INFO 18040 --- [  restartedMain] org.hibernate.Version                    : HHH000412: Hibernate ORM core version 5.4.32.Final
2022-07-10 16:39:20.705  INFO 18040 --- [  restartedMain] o.hibernate.annotations.common.Version   : HCANN000001: Hibernate Commons Annotations {5.1.2.Final}
2022-07-10 16:39:20.866  INFO 18040 --- [  restartedMain] org.hibernate.dialect.Dialect            : HHH000400: Using dialect: org.hibernate.dialect.MySQL8Dialect
2022-07-10 16:39:21.555  INFO 18040 --- [  restartedMain] o.h.e.t.j.p.i.JtaPlatformInitiator       : HHH000490: Using JtaPlatform implementation: [org.hibernate.engine.transaction.jta.platform.internal.NoJtaPlatform]
2022-07-10 16:39:21.563  INFO 18040 --- [  restartedMain] j.LocalContainerEntityManagerFactoryBean : Initialized JPA EntityManagerFactory for persistence unit 'default'
2022-07-10 16:39:22.307  WARN 18040 --- [  restartedMain] JpaBaseConfiguration$JpaWebConfiguration : spring.jpa.open-in-view is enabled by default. Therefore, database queries may be performed during view rendering. Explicitly configure spring.jpa.open-in-view to disable this warning
2022-07-10 16:39:22.779  INFO 18040 --- [  restartedMain] o.s.s.web.DefaultSecurityFilterChain     : Will secure any request with [org.springframework.security.web.context.request.async.WebAsyncManagerIntegrationFilter@6c38469b, org.springframework.security.web.context.SecurityContextPersistenceFilter@52d983cb, org.springframework.security.web.header.HeaderWriterFilter@67a31d2b, org.springframework.security.web.authentication.logout.LogoutFilter@2c8dea82, org.springframework.security.web.authentication.www.BasicAuthenticationFilter@631bab6, org.springframework.security.web.savedrequest.RequestCacheAwareFilter@1f96917a, org.springframework.security.web.servletapi.SecurityContextHolderAwareRequestFilter@64458fc6, org.springframework.security.web.authentication.AnonymousAuthenticationFilter@46d290b3, org.springframework.security.web.session.SessionManagementFilter@1312d3d0, org.springframework.security.web.access.ExceptionTranslationFilter@37e85798, org.springframework.security.web.access.intercept.FilterSecurityInterceptor@2cc95e93]
2022-07-10 16:39:23.986  INFO 18040 --- [  restartedMain] o.s.b.d.a.OptionalLiveReloadServer       : LiveReload server is running on port 35729
2022-07-10 16:39:23.995  INFO 18040 --- [  restartedMain] o.s.b.a.e.web.EndpointLinksResolver      : Exposing 14 endpoint(s) beneath base path '/****{hidden for security}'
2022-07-10 16:39:24.057  INFO 18040 --- [  restartedMain] o.s.b.w.embedded.tomcat.TomcatWebServer  : Tomcat started on port(s): 8081 (http) with context path ''
2022-07-10 16:39:24.073  INFO 18040 --- [  restartedMain] com.vendify.BackendDbApplication         : Started BackendDbApplication in 7.398 seconds (JVM running for 7.938)

主要是我关心的错误在日志中是这样的：

2022-07-10 16:39:18.240  INFO 18040 --- [  restartedMain] .RepositoryConfigurationExtensionSupport : Spring Data JDBC - Could not safely identify store assignment for repository candidate interface com.vendify.Repositories.Auth0TokensCacheRepository. If you want this repository to be a JDBC repository, consider annotating your entities with one of these annotations: org.springframework.data.relational.core.mapping.Table.

这是我如何编码实体类的一个例子（所有的都是这样的，我已经有一段时间没有碰它们了。它们似乎以前工作过......）

package com.vendify.Entities;

import java.util.Date;

import javax.persistence.Column;
import javax.persistence.Entity;
import javax.persistence.GeneratedValue;
import javax.persistence.GenerationType;
import javax.persistence.Id;
import javax.persistence.Table;

import org.springframework.lang.NonNull;

import lombok.Getter;
import lombok.Setter;

@Entity
@Table(name = "Logging")
@Getter
@Setter
public class LoggingEntity {

//specific code removed for security

}

具有类似的存储库类，如下所示：

package com.vendify.Repositories;

import java.util.Date;
import java.util.List;

import org.springframework.data.repository.CrudRepository;
import org.springframework.data.rest.core.annotation.RepositoryRestResource;

import com.vendify.Entities.Auth0TokensCacheEntity;

@RepositoryRestResource(exported = false)
public interface Auth0TokensCacheRepository extends CrudRepository<Auth0TokensCacheEntity, String> {

}

作为证明，我的 MySQL 数据库结构表看起来有点像这样：

Spring 似乎能够连接到数据库，并且在很长一段时间内，它没有任何问题...我添加了一些包，它与其他一些东西混在一起，似乎就是在它崩溃的时候，所以对于一些人来说上下文，这是我的程序的一般布局：

帮助将不胜感激！非常感谢您，祝您的项目开发人员好运！

更新：我尝试了用 JPARepository 替换 CRUDRepository 的解决方案以及 Dhana 建议的其他注释（谢谢:)），并且 spring 找到了所有这些存储库。但是，我的所有 API 端点现在都没有响应，即使是执行器端点也是如此。另外，当添加 @ComponentScan(basePackageClasses = {mycontrollerclasses}) 时，我收到一个应用程序错误，即 spring 找不到服务类。请注意，到目前为止，当我调用端点时，该函数仍然可以正常运行（它可以正确地 system.out.print 结果，但由于某种原因，无法将其正确返回到网络服务器进行显示。

Description:

Field auth0TokensCacheService in com.vendify.Controllers.{ControllerClass} required a bean of type 'com.vendify.Services.{ControllerClass}' 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.vendify.Services.{ControllerClass}' in your configuration.

我的服务类如下所示：

    @Service
public class HiddenService {
    @Autowired
    HiddenRepository hiddenRepository;
//methods in here
}

我的控制器看起来像这样：

@RestController
public class HiddenController {

@GetMapping("/endpointURL")
//method here

} 

谢谢！

Answer 1

让我解释一下，根据我的理解，当您在项目中拥有多个 spring-data 模块以及 Spring Data JDBC 时，如果您尝试通过从通用扩展接口来为未使用特定持久性注释进行注释的特定实体创建接口模块。这肯定行不通，因为 spring 基本上不知道你的实体与哪个数据存储相关联。因此，尝试将其扩展到特定存储库，例如，如果您使用 MySQL，请使用 JpaRepository 而不是 CrudRepository，无论如何，在内部层次结构的某一点，它们将相互链接，但建议仍然将您的实体与特定存储库相关联

最后，确保将这些添加到各自的文件中：

1. @Repository 位于您的自定义存储库中

2. 将其添加到您的 application.properties

spring.data.jdbc.repositories.enabled=false

希望对你有帮助！:)