【发布时间】：2019-06-22 10:47:06
【问题描述】：
我在使用 Spring 的 JpaRepository 将实体保存到 MySQL 时遇到了日期字段/数据库列的问题。
实体具有 LocalDate 字段。在使用 LocalDate.now() 进行测试时，遇到了返回 Date 字段的问题：
- 首先保存返回对象的日期是正确的。
- 从 MySQL 数据库返回对象时，日期是前一天
例子：
预计：2019-01-29
实际：2019-01-28
我昨天试过了，结果是：
预计：2019-01-28
实际：2019-01-27
可能类似于这个JPA Saving wrong date in MySQL database
代码
application-mysql-test-connection.properties
spring.jpa.hibernate.ddl-auto=create
# Database url
spring.datasource.url=jdbc:mysql://localhost:3306/test_coupon_system?serverTimezone=UTC
spring.datasource.driverClassName=com.mysql.cj.jdbc.Driver
# Test Database credentials
spring.datasource.username=springuser
spring.datasource.password=springuser
### showing values - for development
spring.jpa.show-sql=true
优惠券为简洁起见删除了构造函数和 getter/setter
@Entity
public class Coupon {
@Id
@GeneratedValue(strategy = GenerationType.AUTO)
@Column(name = "id", length = 45)
private long id;
@Column(name = "name", unique = true, nullable = false, length = 45)
private String name;
@Column(name = "description", length = 100)
private String description;
@Column(name = "imageLocation")
private String imageLocation;
@Column(name = "startDate", length = 45)
private LocalDate startDate;
@Column(name = "endDate", length = 45)
private LocalDate endDate;
@ManyToOne(cascade = CascadeType.PERSIST)
@JoinColumn(name = "company_id")
private Company company;
@ManyToMany(cascade = CascadeType.PERSIST,fetch = FetchType.EAGER)
@JoinTable(
name = "customer_coupon",
joinColumns = @JoinColumn(name = "coupon_id"),
inverseJoinColumns = @JoinColumn(name = "customer_id")
)
private List<Customer> customers;
CouponRepository
@Repository
public interface CouponRepository extends JpaRepository<Coupon, Long> {
Coupon findByName(String name);
}
测试类带打印输出
@SpringBootTest
@TestPropertySource(locations = {
"classpath:application-mysql-test-connection.properties",
})
public class CouponDateIT {
@Autowired
private CouponRepository repository;
@BeforeEach
void setUp() {
repository.deleteAll();
}
@Test
void returnsLocalDate() {
LocalDate testDate = LocalDate.now();
DateTime.now();
Coupon coupon = new Coupon();
String couponName = "test1";
coupon.setName(couponName);
coupon.setStartDate(LocalDate.now());
coupon.setEndDate(LocalDate.now());
coupon = repository.saveAndFlush(coupon);
System.out.println("===> test date " + testDate);
System.out.println("===> coupon from db " + coupon);
assertEquals(testDate, coupon.getStartDate());
assertEquals(testDate, coupon.getEndDate());
Coupon returned = repository.findByName(couponName);
System.out.println("===> after save " + returned);
assertEquals(testDate, returned.getStartDate());
assertEquals(testDate, returned.getEndDate());
}
未通过测试
Hibernate: select coupon0_.id as id1_1_, coupon0_.company_id as company_7_1_, coupon0_.description as descript2_1_, coupon0_.end_date as end_date3_1_, coupon0_.image_location as image_lo4_1_, coupon0_.name as name5_1_, coupon0_.start_date as start_da6_1_ from coupon coupon0_
Hibernate: select next_val as id_val from hibernate_sequence for update
Hibernate: update hibernate_sequence set next_val= ? where next_val=?
Hibernate: insert into coupon (company_id, description, end_date, image_location, name, start_date, id) values (?, ?, ?, ?, ?, ?, ?)
===> test date 2019-01-29
===> coupon from db Coupon{id=1, name='test1', description='null', imageLocation='null', startDate=2019-01-29, endDate=2019-01-29}
Hibernate: select coupon0_.id as id1_1_, coupon0_.company_id as company_7_1_, coupon0_.description as descript2_1_, coupon0_.end_date as end_date3_1_, coupon0_.image_location as image_lo4_1_, coupon0_.name as name5_1_, coupon0_.start_date as start_da6_1_ from coupon coupon0_ where coupon0_.name=?
Hibernate: select customers0_.coupon_id as coupon_i2_3_0_, customers0_.customer_id as customer1_3_0_, customer1_.id as id1_2_1_, customer1_.email as email2_2_1_, customer1_.name as name3_2_1_ from customer_coupon customers0_ inner join customer customer1_ on customers0_.customer_id=customer1_.id where customers0_.coupon_id=?
===> after save Coupon{id=1, name='test1', description='null', imageLocation='null', startDate=2019-01-28, endDate=2019-01-28}
java.lang.AssertionError: expected:<2019-01-29> but was:<2019-01-28>
Expected :2019-01-29
Actual :2019-01-28
在测试前记录
2019-01-29 11:26:07.986 INFO 6576 --- [ main] g.f.d.s.database.CouponDateIT : No active profile set, falling back to default profiles: default
2019-01-29 11:26:09.235 INFO 6576 --- [ main] .s.d.r.c.RepositoryConfigurationDelegate : Bootstrapping Spring Data repositories in DEFAULT mode.
2019-01-29 11:26:09.308 INFO 6576 --- [ main] .s.d.r.c.RepositoryConfigurationDelegate : Finished Spring Data repository scanning in 73ms. Found 3 repository interfaces.
2019-01-29 11:26:09.762 INFO 6576 --- [ main] trationDelegate$BeanPostProcessorChecker : Bean 'org.springframework.transaction.annotation.ProxyTransactionManagementConfiguration' of type [org.springframework.transaction.annotation.ProxyTransactionManagementConfiguration$$EnhancerBySpringCGLIB$$70fe81c1] is not eligible for getting processed by all BeanPostProcessors (for example: not eligible for auto-proxying)
2019-01-29 11:26:09.981 INFO 6576 --- [ main] com.zaxxer.hikari.HikariDataSource : HikariPool-1 - Starting...
2019-01-29 11:26:10.894 INFO 6576 --- [ main] com.zaxxer.hikari.HikariDataSource : HikariPool-1 - Start completed.
2019-01-29 11:26:10.957 INFO 6576 --- [ main] o.hibernate.jpa.internal.util.LogHelper : HHH000204: Processing PersistenceUnitInfo [
name: default
...]
2019-01-29 11:26:11.019 INFO 6576 --- [ main] org.hibernate.Version : HHH000412: Hibernate Core {5.3.7.Final}
2019-01-29 11:26:11.019 INFO 6576 --- [ main] org.hibernate.cfg.Environment : HHH000206: hibernate.properties not found
2019-01-29 11:26:11.191 INFO 6576 --- [ main] o.hibernate.annotations.common.Version : HCANN000001: Hibernate Commons Annotations {5.0.4.Final}
2019-01-29 11:26:11.341 INFO 6576 --- [ main] org.hibernate.dialect.Dialect : HHH000400: Using dialect: org.hibernate.dialect.MySQL5Dialect
2019-01-29 11:26:11.591 WARN 6576 --- [ main] org.hibernate.mapping.RootClass : HHH000038: Composite-id class does not override equals(): .entity.Customer_Coupon
2019-01-29 11:26:11.591 WARN 6576 --- [ main] org.hibernate.mapping.RootClass : HHH000039: Composite-id class does not override hashCode(): .entity.Customer_Coupon
Hibernate: drop table if exists company
Hibernate: drop table if exists coupon
Hibernate: drop table if exists customer
Hibernate: drop table if exists customer_coupon
Hibernate: drop table if exists hibernate_sequence
Hibernate: create table company (id bigint not null, email varchar(45) not null, name varchar(45) not null, password varchar(45) not null, primary key (id)) engine=MyISAM
Hibernate: alter table company add constraint UK_bma9lv19ba3yjwf12a34xord3 unique (email)
Hibernate: alter table company add constraint UK_niu8sfil2gxywcru9ah3r4ec5 unique (name)
Hibernate: create table coupon (id bigint not null, description varchar(100), end_date date, image_location varchar(255), name varchar(45) not null, start_date date, company_id bigint, primary key (id)) engine=MyISAM
Hibernate: create table customer (id integer not null, email varchar(45) not null, name varchar(45) not null, primary key (id)) engine=MyISAM
Hibernate: create table customer_coupon (customer_id bigint not null, coupon_id bigint not null, primary key (customer_id, coupon_id)) engine=MyISAM
Hibernate: create table hibernate_sequence (next_val bigint) engine=MyISAM
Hibernate: insert into hibernate_sequence values ( 1 )
Hibernate: insert into hibernate_sequence values ( 1 )
Hibernate: insert into hibernate_sequence values ( 1 )
Hibernate: insert into hibernate_sequence values ( 1 )
Hibernate: insert into hibernate_sequence values ( 1 )
Hibernate: alter table coupon add constraint UK_dfikvnp7dxdfishfvpnlc0xc1 unique (name)
Hibernate: alter table customer add constraint UK_dwk6cx0afu8bs9o4t536v1j5v unique (email)
Hibernate: alter table customer add constraint UK_crkjmjk1oj8gb6j6t5kt7gcxm unique (name)
Hibernate: alter table coupon add constraint FKe2v6qnb3w90rekqrae28iiqhm foreign key (company_id) references company (id)
Hibernate: alter table customer_coupon add constraint FKppndqdpydmsumc9yqslm5hss4 foreign key (coupon_id) references coupon (id)
Hibernate: alter table customer_coupon add constraint FKi755t5tde9sf6nrp4rm2rnnmn foreign key (customer_id) references customer (id)
2019-01-29 11:26:12.515 INFO 6576 --- [ main] o.h.t.schema.internal.SchemaCreatorImpl : HHH000476: Executing import script 'ScriptSourceInputFromUrl(/import.sql)'
2019-01-29 11:26:12.515 INFO 6576 --- [ main] j.LocalContainerEntityManagerFactoryBean : Initialized JPA EntityManagerFactory for persistence unit 'default'
2019-01-29 11:26:12.812 INFO 6576 --- [ main] o.h.h.i.QueryTranslatorFactoryInitiator : HHH000397: Using ASTQueryTranslatorFactory
2019-01-29 11:26:13.747 INFO 6576 --- [ main] o.s.s.concurrent.ThreadPoolTaskExecutor : Initializing ExecutorService 'applicationTaskExecutor'
2019-01-29 11:26:13.793 WARN 6576 --- [ main] aWebConfiguration$JpaWebMvcConfiguration : 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
2019-01-29 11:26:14.592 INFO 6576 --- [ main] o.s.b.a.e.web.EndpointLinksResolver : Exposing 2 endpoint(s) beneath base path '/actuator'
2019-01-29 11:26:14.655 INFO 6576 --- [ main] g.f.d.s.database.CouponDateIT : Started CouponDateIT in 6.985 seconds (JVM running for 8.059)
我希望日期字段在保存并返回后不会更改，但日期一直更改为昨天的 AFTER 保存优惠券。
【问题讨论】：
-
连接字符串中不使用
?serverTimezone=UTC会有什么结果？ -
表格中的列是什么类型的？
-
@Hareesh 该列的类型为日期。
-
@x80486 without
?serverTimezone=UTCthrowsCaused by: com.mysql.cj.exceptions.InvalidConnectionAttributeException: The server time zone value 'Jerusalem Standard Time' is unrecognized or represents more than one time zone. You must configure either the server or JDBC driver (via the serverTimezone configuration property) to use a more specifc time zone value if you want to utilize time zone support. -
那么数据库中的值是什么？
标签： java mysql hibernate spring-data-jpa