实体未加载，或神秘“未找到属性 'saveAll'...”或“无法安全识别存储分配...”

Question

我希望 JPA 识别实体，并生成创建表所需的 SQL。 我可以通过以下方式之一让它失败。 下面我显示了错误，然后是实体的代码。 行为会根据 package 用于 Table 之类的东西而改变，所以我特意展示了下面使用的是哪一个。

错误：RepositoryConfigurationExtensionSupport：Spring 数据 JDBC - 无法安全地识别存储库候选接口 com.woodsman.jpatutorialHeaderRepositories. 如果您希望此存储库成为 JDBC 存储库，请考虑使用以下注释之一来注释您的实体：org.springframework.data.relational.core.mapping.Table。 OrderHeader.java：

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

import lombok.AllArgsConstructor;
import lombok.Builder;
import lombok.Data;
import lombok.EqualsAndHashCode;
import lombok.NoArgsConstructor;


@Entity This should be simple, but I think there's several pack
@Builder
@Data
@NoArgsConstructor
@AllArgsConstructor This should be simple, but I think there's several pack
@EqualsAndHashCode
@Table(name = "order_header")
public class OrderHeader {
    @Id
    @GeneratedValue(strategy = GenerationType.IDENTITY)
    private String id;
    private String customerName;
}

Error: Error creating bean with name 'orderHeaderRepository' defined in com.woodsman.jpatutorial.orders.repositories.OrderHeaderRepository defined in @EnableJdbcRepositories declared on JdbcRepositoriesRegistrar.EnableJdbcRepositoriesConfiguration: Could not create query for public abstract java.util.List org.springframework.data .jpa.repository.JpaRepository.saveAllAndFlush(java.lang.Iterable); 原因：未找到类型“OrderHeader”OrderHeaderRepository.java 的属性“saveAll”：

import org.springframework.data.jpa.repository.JpaRepository;
import org.springframework.stereotype.Repository;

import com.woodsman.jpatutorial.orders.entities.OrderHeader;

@Repository
public interface OrderHeaderRepository extends JpaRepository<OrderHeader,Long>{

}

OrderHeader.java

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

import lombok.AllArgsConstructor;
import lombok.Builder;
import lombok.Data;
import lombok.EqualsAndHashCode;
import lombok.NoArgsConstructor;


@Entity
@Builder
@Data
@NoArgsConstructor
@AllArgsConstructor
@EqualsAndHashCode
@org.springframework.data.relational.core.mapping.Table(name = "order_header",schema = "orders")
public class OrderHeader {
    @Id
    @GeneratedValue(strategy = GenerationType.IDENTITY)
    private String id;
    private String customerName;
}

应用程序-h2.properties

spring.datasource.url=jdbc:h2:mem:ordersdb;DB_CLOSE_DELAY=-1;DB_CLOSE_ON_EXIT=FALSE;MODE=MYSQL;DATABASE_TO_LOWER=TRUE;CASE_INSENSITIVE_IDENTIFIERS=TRUE
spring.datasource.username=ordersadmin
spring.datasource.password=secret
spring.jpa.database=mysql
spring.jpa.properties.hibernate.dialect=org.hibernate.dialect.MySQL8Dialect
spring.jpa.generate-ddl=true
spring.jpa.hibernate.ddl-auto=create-drop
database, ALWAYS initialize the database
spring.sql.init.mode=ALWAYS
spring.flyway.user=ordersadmin
spring.flyway.password=secret
spring.flyway.locations=db/migration,db/specific/h2
spring.flyway.defaultSchema=orders

应用程序属性：

spring.jpa.properties.hibernate.show_sql=true
spring.jpa.properties.hibernate.format_sql=true
logging.level.org.hibernate.type.descriptor.sql=trace
spring.h2.console.enabled=true
spring.jpa.show-sql=true
spring.data.jdbc.repositories.enabled=true