timestamp - Liquibase：如何从 CSV 加载日期字段？
问题描述
我在一个 Spring-Boot 项目中，我正在使用 Liquibase 来从 CSV 文件填充数据库。其中，有一些实体带有日期字段。
这是我用于创建表的 databaseChangelog：
<?xml version="1.0" encoding="utf-8"?>
<databaseChangeLog
xmlns="http://www.liquibase.org/xml/ns/dbchangelog"
xmlns:ext="http://www.liquibase.org/xml/ns/dbchangelog-ext"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://www.liquibase.org/xml/ns/dbchangelog http://www.liquibase.org/xml/ns/dbchangelog/dbchangelog-3.5.xsd
http://www.liquibase.org/xml/ns/dbchangelog-ext http://www.liquibase.org/xml/ns/dbchangelog/dbchangelog-ext.xsd">
<property name="now" value="now()" dbms="h2"/>
<property name="now" value="current_timestamp" dbms="postgresql"/>
<property name="floatType" value="float4" dbms="postgresql, h2"/>
<property name="floatType" value="float" dbms="mysql, oracle, mssql"/>
<!--
Added the entity Container.
-->
<changeSet id="20180424154826-1" author="jhipster">
<createTable tableName="container">
<column name="id" type="bigint" autoIncrement="${autoIncrement}">
<constraints primaryKey="true" nullable="false"/>
</column>
<column name="name" type="varchar(255)">
<constraints nullable="false" />
</column>
<column name="description" type="varchar(2000)">
<constraints nullable="true" />
</column>
<column name="container_type" type="varchar(255)">
<constraints nullable="true" />
</column>
<column name="created" type="timestamp">
<constraints nullable="true" />
</column>
<!-- jhipster-needle-liquibase-add-column - JHipster will add columns here, do not remove-->
</createTable>
<dropDefaultValue tableName="container" columnName="created" columnDataType="datetime"/>
</changeSet>
<!-- jhipster-needle-liquibase-add-changeset - JHipster will add changesets here, do not remove-->
</databaseChangeLog>
这里是用于填充表的更改日志：
<?xml version="1.0" encoding="utf-8"?>
<databaseChangeLog
xmlns="http://www.liquibase.org/xml/ns/dbchangelog"
xmlns:ext="http://www.liquibase.org/xml/ns/dbchangelog-ext"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://www.liquibase.org/xml/ns/dbchangelog http://www.liquibase.org/xml/ns/dbchangelog/dbchangelog-3.5.xsd
http://www.liquibase.org/xml/ns/dbchangelog-ext http://www.liquibase.org/xml/ns/dbchangelog/dbchangelog-ext.xsd">
<property name="now" value="now()" dbms="h2"/>
<property name="now" value="current_timestamp" dbms="postgresql"/>
<property name="floatType" value="float4" dbms="postgresql, h2"/>
<property name="floatType" value="float" dbms="mysql, oracle, mssql"/>
<!--
Added the entity ExternalAudit.
-->
<changeSet id="20180425154950-1" author="developer">
<loadData catalogName="container"
encoding="UTF-8"
file="config/liquibase/containers.csv"
schemaName="public"
separator=";"
quotchar="'"
tableName="container">
</loadData>
</changeSet>
<!-- jhipster-needle-liquibase-add-changeset - JHipster will add changesets here, do not remove-->
</databaseChangeLog>
最后是包含表格数据的 CSV：
id;name;description;container_type;created
1;'Human';'Human container';'HUMAN';${now}
2;'IT';'IT container';'IT';${now}
3;'Physical';'Physical container';'PHYSICAL';${now}
4;'Intangible';'Intangible container';'INTANGIBLE';${now}
问题是，如果我运行：
mvn clean install
我在控制台中收到以下日志，抱怨日期字段：
nested exception is liquibase.exception.MigrationFailedException: Migration failed for change set config/liquibase/changelog/20180425154950_added_Containers_data.xml::20180425154950-1::developer:
Reason: liquibase.exception.DatabaseException: Cannot parse "TIMESTAMP" constant "${now}"; SQL statement:
INSERT INTO public.container (id, name, description, container_type, created) VALUES ('1', 'Human', 'Human container', 'HUMAN', '${now}') -- ('1', 'Human', 'Human container', 'HUMAN', '${now}') [22007-197] [Failed SQL: INSERT INTO public.container (id, name, description, container_type, created) VALUES ('1', 'Human', 'Human container', 'HUMAN', '${now}')]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1630)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:555)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:483)
at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:312)
at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:230)
at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:308)
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:197)
at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:297)
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:197)
at org.springframework.context.support.AbstractApplicationContext.getBean(AbstractApplicationContext.java:1080)
at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:857)
at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:543)
at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:693)
at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:360)
at org.springframework.boot.SpringApplication.run(SpringApplication.java:303)
at org.springframework.boot.test.context.SpringBootContextLoader.loadContext(SpringBootContextLoader.java:120)
at org.springframework.test.context.cache.DefaultCacheAwareContextLoaderDelegate.loadContextInternal(DefaultCacheAwareContextLoaderDelegate.java:98)
at org.springframework.test.context.cache.DefaultCacheAwareContextLoaderDelegate.loadContext(DefaultCacheAwareContextLoaderDelegate.java:116)
at org.springframework.test.context.support.DefaultTestContext.getApplicationContext(DefaultTestContext.java:83)
at org.springframework.test.context.web.ServletTestExecutionListener.setUpRequestContextIfNecessary(ServletTestExecutionListener.java:189)
at org.springframework.test.context.web.ServletTestExecutionListener.prepareTestInstance(ServletTestExecutionListener.java:131)
at org.springframework.test.context.TestContextManager.prepareTestInstance(TestContextManager.java:230)
at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.createTest(SpringJUnit4ClassRunner.java:228)
at org.springframework.test.context.junit4.SpringJUnit4ClassRunner$1.runReflectiveCall(SpringJUnit4ClassRunner.java:287)
at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12)
at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.methodBlock(SpringJUnit4ClassRunner.java:289)
at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.runChild(SpringJUnit4ClassRunner.java:247)
at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.runChild(SpringJUnit4ClassRunner.java:94)
at org.junit.runners.ParentRunner$3.run(ParentRunner.java:290)
at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:71)
at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:288)
at org.junit.runners.ParentRunner.access$000(ParentRunner.java:58)
at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:268)
at org.springframework.test.context.junit4.statements.RunBeforeTestClassCallbacks.evaluate(RunBeforeTestClassCallbacks.java:61)
at org.springframework.test.context.junit4.statements.RunAfterTestClassCallbacks.evaluate(RunAfterTestClassCallbacks.java:70)
at org.junit.runners.ParentRunner.run(ParentRunner.java:363)
at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.run(SpringJUnit4ClassRunner.java:191)
at org.apache.maven.surefire.junit4.JUnit4Provider.execute(JUnit4Provider.java:283)
at org.apache.maven.surefire.junit4.JUnit4Provider.executeWithRerun(JUnit4Provider.java:173)
at org.apache.maven.surefire.junit4.JUnit4Provider.executeTestSet(JUnit4Provider.java:153)
at org.apache.maven.surefire.junit4.JUnit4Provider.invoke(JUnit4Provider.java:128)
at org.apache.maven.surefire.booter.ForkedBooter.invokeProviderInSameClassLoader(ForkedBooter.java:203)
at org.apache.maven.surefire.booter.ForkedBooter.runSuitesInProcess(ForkedBooter.java:155)
at org.apache.maven.surefire.booter.ForkedBooter.main(ForkedBooter.java:103)
Caused by: liquibase.exception.MigrationFailedException: Migration failed for change set config/liquibase/changelog/20180425154950_added_Containers_data.xml::20180425154950-1::developer:
Reason: liquibase.exception.DatabaseException: Cannot parse "TIMESTAMP" constant "${now}"; SQL statement:
INSERT INTO public.container (id, name, description, container_type, created) VALUES ('1', 'Human', 'Human container', 'HUMAN', '${now}') -- ('1', 'Human', 'Human container', 'HUMAN', '${now}') [22007-197] [Failed SQL: INSERT INTO public.container (id, name, description, container_type, created) VALUES ('1', 'Human', 'Human container', 'HUMAN', '${now}')]
at liquibase.changelog.ChangeSet.execute(ChangeSet.java:619)
at liquibase.changelog.visitor.UpdateVisitor.visit(UpdateVisitor.java:51)
at liquibase.changelog.ChangeLogIterator.run(ChangeLogIterator.java:79)
at liquibase.Liquibase.update(Liquibase.java:214)
at liquibase.Liquibase.update(Liquibase.java:192)
at liquibase.integration.spring.SpringLiquibase.performUpdate(SpringLiquibase.java:431)
at liquibase.integration.spring.SpringLiquibase.afterPropertiesSet(SpringLiquibase.java:388)
at io.github.jhipster.config.liquibase.AsyncSpringLiquibase.initDb(AsyncSpringLiquibase.java:94)
at io.github.jhipster.config.liquibase.AsyncSpringLiquibase.afterPropertiesSet(AsyncSpringLiquibase.java:84)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeInitMethods(AbstractAutowireCapableBeanFactory.java:1688)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1626)
... 43 common frames omitted
如果我运行：
mvn process-resources
mvn liquibase:update
结果是建立成功
解决方案
在您的 csv 中，只需使用now而不是${now}. 然后它不应该再扔Cannot parse "TIMESTAMP" constant "${now}";了
推荐阅读
- android - Android Webview - 如何导航到搜索文本的下一个出现
- reactjs - Reactjs - 我应该 npm install 还是使用 unpkg 添加 - 优点和缺点是什么
- python - 在列表中转换 conllu 文件
- powershell - Powershell：创建 Az 副本到 blob 容器日志文件或详细
- firebase - Flutter: Upload Image Unhandled Exception: PlatformException(firebase_storage, The storage Uri cannot contain a path element., {}, null)
- javascript - 在我通过 Redux 传递它的特殊情况下，这个箭头函数是如何工作的
- node.js - 尽管我的 mongodb 服务器已连接并且正在运行，但我的本地主机仍在继续加载
- python - “列表索引必须是整数或切片，而不是 str”，同时从 JSON 操作数据
- android - OkHttpClient.newCall 错误？
- c - 某个数的位数之和