为什么我的H2数据库/Spring引导应用程序获得JdbcSQLException(非十六进制字符)?
所以简短的版本,我猜我有某种字符编码问题,或者DB以Hibernate / Spring-jpa不喜欢的格式存储/返回日期出于某种原因。
但是,如果我能找出哪里出了问题,我就大吃一惊!
使用Hibernate 5在实体道具中使用J8 LocalDate的东西。
正在创建数据库并且数据插入正常(您将在下面的日志片段中看到我得到了一个日期值)。
日志片段:
2016-10-26 13:25:19.885 ERROR 1028 --- [nio-8080-exec-1] o.a.c.c.C.[.[.[/].[dispatcherServlet] : Servlet.service() for servlet [dispatcherServlet] in context with path [] threw exception [Request processing failed; nested exception is org.springframework.orm.jpa.JpaSystemException:
Could not read entity state from ResultSet : EntityKey[uk.co.deditech.entity.Person#2];
nested exception is org.hibernate.exception.GenericJDBCException: Could not read entity state from ResultSet :
EntityKey[uk.co.deditech.entity.Person#2]] with root cause org.h2.jdbc.JdbcSQLException: Hexadecimal string contains non-hex character: "2016-03-23" [90004-192]
at org.h2.message.DbException.getJdbcSQLException(DbException.java:345) ~[h2-1.4.192.jar:1.4.192]
at org.h2.message.DbException.get(DbException.java:179) ~[h2-1.4.192.jar:1.4.192]
at org.h2.message.DbException.get(DbException.java:155) ~[h2-1.4.192.jar:1.4.192]
at org.h2.util.StringUtils.convertHexToBytes(StringUtils.java:986) ~[h2-1.4.192.jar:1.4.192]
at org.h2.value.Value.convertTo(Value.java:973) ~[h2-1.4.192.jar:1.4.192]
at org.h2.value.Value.getBytes(Value.java:422) ~[h2-1.4.192.jar:1.4.192]
at org.h2.jdbc.JdbcResultSet.getBytes(JdbcResultSet.java:1077) ~[h2-1.4.192.jar:1.4.192]
<snip>
等级:
compile("org.springframework.boot:spring-boot-starter-web")
compile("org.springframework.boot:spring-boot-starter-data-jpa")
compile("org.springframework.boot:spring-boot-starter-freemarker")
compile group: 'com.h2database', name: 'h2', version:'1.4.192'
实体:
@Entity
@Table(name = "person")
public @Data class Person {
...
@Column(name = "last_grading_date", nullable = true)
private LocalDate lastGradingDate;
}
Spring boot auto DB 创建脚本片段:
schema.sql
create table PERSON
(
id int not null,
last_grading_date date
)
data.sql
insert into person (id, last_grading_date)
values (1, '2015-02-20');
属性(在我在下面添加编码属性之前和之后出现问题):
spring.datasource.url=jdbc:h2:mem:AZ;DB_CLOSE_DELAY=-1;
spring.datasource.driverClassName=org.h2.Driver
spring.jpa.database-platform=org.hibernate.dialect.H2Dialect
spring.datasource.sql-script-encoding=UTF-8
编辑:经过进一步的挖掘,我发现“验证”是spring.jpa.hibernate.ddl-auto属性的设置。所以我试过了。
我现在在启动期间收到以下错误...
Caused by: org.hibernate.tool.schema.spi.SchemaManagementException: Schema-validation: wrong column type encountered in column [last_grading_date] in table [person]; found [date (Types#DATE)], but expecting [binary(255) (Types#VARBINARY)]
at org.hibernate.tool.schema.internal.SchemaValidatorImpl.validateColumnType(SchemaValidatorImpl.java:105) ~[hibernate-core-5.0.11.Final.jar:5.0.11.Final]