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我有一个具有一对一关系的聚合，并且在第二级中，子实体具有一对多关系（列表）。当前，当实体被保存时，它会执行预期的操作，并且可以正常保存。但是当我尝试从数据库中获取实体时，生成的 SQL 是错误的，从而导致错误。我真的不能告诉我在这里缺少什么，任何帮助将不胜感激。我正在使用 Lombok、spring-data-jdbc 和 spring-boot。也许龙目岛有事可做，但我不知道。Heres代码举例说明我在说什么：界面

public interface ChargeRepository extends CrudRepository<Charge, Long> {

}

实体

@Data
@AllArgsConstructor
@NoArgsConstructor
@JsonIgnoreProperties(ignoreUnknown = true)
public class Charge {

    @Id
    private Long id;

    private Double someData;

    private Summary summary;
}

@Data
@AllArgsConstructor
@NoArgsConstructor
public class Summary {

    @Id
    private Long id;

    private Double otherData;

    private List<Multiplier> details = new ArrayList<>();
}

@Data
@AllArgsConstructor
@NoArgsConstructor
public class Multiplier {

    @Id
    private Long id;

    private Double detailData;
}

这是 DDL

CREATE TABLE CHARGE(
  ID BIGINT UNSIGNED NOT NULL AUTO_INCREMENT,
  SOME_DATA DOUBLE(2) NOT NULL,
  PRIMARY KEY(ID)
);

CREATE TABLE SUMMARY(
ID BIGINT UNSIGNED NOT NULL AUTO_INCREMENT,
OTHER_DATA DOUBLE(2) NOT NULL,
CHARGE BIGINT UNSIGNED NOT NULL,
PRIMARY KEY(ID)
);

CREATE TABLE Multiplier(
ID BIGINT UNSIGNED NOT NULL AUTO_INCREMENT,
DETAIL_DATA DOUBLE(2) NOT NULL,
SUMMARY BIGINT UNSIGNED NOT NULL,
SUMMARY_KEY INTEGER NOT NULL,
PRIMARY KEY(ID)
);

问题是，当我保存一个新实体时它没问题，但是当我尝试从数据库中获取它时，生成的 sql 会在表之间建立一个连接，其中包含实体中存在的列“详细信息”，但显然它不是桌子。这是我得到的错误

PreparedStatementCallback; 错误的 SQL 语法 [SELECT charge.id AS id, charge.some_data AS some_data, summary.id AS summary_id, summary.other_data AS summary_other_data, summary.details AS summary_details FROM charge LEFT OUTER JOIN summary AS summary ON summary.charge = charge.id WHERE charge.id = ?]; 嵌套异常是 org.h2.jdbc.JdbcSQLException: Column \"SUMMARY.DETAILS\" not found \nColumn \"SUMMARY.DETAILS\" not found; SQL 语句：\nSELECT charge.id AS id,charge.some_data AS some_data,summary.id AS summary_id,summary.other_data AS summary_other_data,summary.details AS summary_details FROM charge LEFT OUTER JOIN summary AS summary ON summary.charge = charge.id哪里charge.id =？

我在这里缺少什么？编辑：忘记添加，如果列表在根聚合中，它工作正常。

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0 回答 0