spring-data - 如何调整 Spring Data JDBC 的 NamingStrategy

Question

我如何调整 Spring Data JDBC NamingStrategy表现得像 Hibernate 的 PhysicalNamingStrategy ?
我有以下实体:

/**
 * Campus domain model class.
 * Handles information about campus.
 *
 * @author thomas.lang@th-deg.de
 */
@Data
@AllArgsConstructor(access = AccessLevel.PRIVATE, onConstructor = @__(@PersistenceConstructor))
public class Campus {

    private final @Id
    @Wither
    long campusId;

    @NotNull
    @Size(min = 3)
    private String campusName;

    /**
     * Creates a new campus.
     *
     * @param campusName
     */
    public Campus(@NonNull String campusName) {
        this.campusId = 0;
        Assert.hasLength(campusName, "A valid value has to be provided for Campus!");
        this.campusName = campusName;
    }

}

当我希望 JDBC 持久化测试记录时，它会生成此 sql: [INSERT INTO campus (campus_name) VALUES (?)]
我现有的数据库有一列名为 campusname
我在这里阅读了文档 https://docs.spring.io/spring-data/jdbc/docs/1.0.2.RELEASE/reference/html/#jdbc.entity-persistence.naming-strategy我可以调整命名策略，但我不知道如何:)

感谢您的帮助!
亲切的问候!
托马斯

解决方案:

/**
     * Naming strategy for naming entity columns
     * @see <a href="https://stackoverflow.com/questions/53334685/how-to-tweak-namingstrategy-for-spring-data-jdbc/53335830#53335830">How to implement {@link NamingStrategy}</a>
     *
     * @return PhysicalNamingStrategy
     */
    @Bean
    public NamingStrategy namingStrategy() {
        return new NamingStrategy() {
            @Override
            public String getColumnName(RelationalPersistentProperty property) {
                Assert.notNull(property, "Property must not be null.");
                return ParsingUtils.reconcatenateCamelCase(property.getName(), "");
            }
        };
    }

Answer 1

创建一个类型为 NamingStrategy 的 bean在您的应用程序上下文中并根据您的喜好实现其方法。

您需要覆盖的方法是 getColumnName(RelationalPersistentProperty)