Liquibase 不基于 JPA 实体创建差异更新日志
Liquibase not creating diff changelog based on JPA Entities
我试图在已经提出的问题以及一些用户推荐的 post 中找到答案：http://www.operatornew.com/2012/11/automatic-db-migration-for-java-web.html 但没有任何运气。
问题是我使用 Maven 构建工具和 Postgres DB 为我的 Java 项目完成了 Liquibase 配置，但即使我已经定义了 Hibernate 实体，Liquibase diff 不考虑它们并且 不根据 JPA 注释实体生成变更锁。
我尝试了所有方法，但使用空 changelock-master.xml 并定义了 2 个实体，结果 diff.xml是空的。
这是我的pom.xml:
<!--LIQUIBASE-->
<dependency>
<groupId>org.liquibase</groupId>
<artifactId>liquibase-core</artifactId>
</dependency>
<dependency>
<groupId>org.liquibase</groupId>
<artifactId>liquibase-maven-plugin</artifactId>
<version>3.4.1</version>
</dependency>
...
<plugin>
<groupId>org.liquibase</groupId>
<artifactId>liquibase-maven-plugin</artifactId>
<version>3.5.3</version>
<dependencies>
<dependency>
<groupId>org.liquibase.ext</groupId>
<artifactId>liquibase-hibernate4</artifactId>
<version>3.6</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-beans</artifactId>
<version>4.1.7.RELEASE</version>
</dependency>
<dependency>
<groupId>org.springframework.data</groupId>
<artifactId>spring-data-jpa</artifactId>
<version>1.7.3.RELEASE</version>
</dependency>
</dependencies>
<configuration>
<propertyFile>src/main/resources/liquibase.properties</propertyFile>
<changeLogFile>src/main/resources/db/changelog/changelog-master.xml</changeLogFile>
</configuration>
</plugin>
这里我有我的 liquibase.properties 定义：
referenceUrl=hibernate:spring:com.victus.applied.entity?dialect=org.hibernate.dialect.PostgreSQLDialect
referenceDriver=liquibase.ext.hibernate.database.connection.HibernateDriver
referenceUsername=testusername
referencePassword=
driver=org.postgresql.Driver
url=jdbc:postgresql://localhost:5432/applied
username=testusername
password=
changeLogFile=src/main/resources/db/changelog/changelog-master.xml
diffChangeLogFile=src/main/resources/liquibase-diff.xml
outputChangeLogFile=src/main/resources/db/changelog/changelog-master.xml
在我的 application.properties 我还有：
##Liquibase
spring.liquibase.change-log=classpath:/db/changelog/changelog-master.xml
logging.level.liquibase = INFO
##Postgres DB
spring.datasource.url= jdbc:postgresql://localhost:5432/applied
spring.datasource.driver-class-name=org.postgresql.Driver
spring.datasource.username=wiktordyngosz
spring.datasource.password=
# The SQL dialect makes Hibernate generate better SQL for the chosen database
spring.jpa.properties.hibernate.dialect=org.hibernate.dialect.PostgreSQLDialect
spring.jpa.properties.hibernate.temp.use_jdbc_metadata_defaults = false
# Hibernate ddl auto (create, create-drop, validate, update)
spring.jpa.hibernate.ddl-auto=create
spring.jpa.show-sql=true
spring.messages.basename=validation
我定义了两个简单的实体，例如其中之一：
@Entity
@Table(name = "user")
@Getter
@Setter
@NoArgsConstructor
@EqualsAndHashCode
public class User {
@Id
@GeneratedValue(strategy = GenerationType.AUTO)
private Long id;
@NotNull
private String username;
@NotNull
private String password;
@Transient
private String passwordConfirm;
@ManyToMany
@JoinTable(name = "user_role", joinColumns = @JoinColumn(name = "user_id"), inverseJoinColumns = @JoinColumn(name = "role_id"))
private Set<Role> roles;
}
当我有一个空的 changelock-master.xml 文件并调用 mvn liquibase:diff 来生成基于 changelock 的在我的实体上，生成的变更锁是空的。
日志如下所示：
[INFO] ------------------------------------------------------------------------
[INFO] Parsing Liquibase Properties File
[INFO] File: src/main/resources/liquibase.properties
[INFO] 'outputChangeLogFile' in properties file is not being used by this task.
[INFO] ------------------------------------------------------------------------
[INFO] Executing on Database: jdbc:postgresql://localhost:5432/applied
INFO 20.02.19 21:19: liquibase-hibernate: Reading hibernate configuration hibernate:spring:com.victus.applied.entity?dialect=org.hibernate.dialect.PostgreSQLDialect
INFO 20.02.19 21:19: liquibase-hibernate: Found package com.victus.applied.entity
INFO 20.02.19 21:19: liquibase-hibernate: Found dialect org.hibernate.dialect.PostgreSQLDialect
INFO 20.02.19 21:19: liquibase-hibernate: Found hibernate.enhanced_idfalse
lut 20, 2019 9:19:26 PM org.hibernate.jpa.internal.util.LogHelper logPersistenceUnitInformation
INFO: HHH000204: Processing PersistenceUnitInfo [
name: default
...]
lut 20, 2019 9:19:26 PM org.hibernate.Version logVersion
INFO: HHH000412: Hibernate Core {4.3.11.Final}
lut 20, 2019 9:19:26 PM org.hibernate.cfg.Environment <clinit>
INFO: HHH000206: hibernate.properties not found
lut 20, 2019 9:19:26 PM org.hibernate.cfg.Environment buildBytecodeProvider
INFO: HHH000021: Bytecode provider name : javassist
lut 20, 2019 9:19:27 PM org.hibernate.annotations.common.reflection.java.JavaReflectionManager <clinit>
INFO: HCANN000001: Hibernate Commons Annotations {4.0.5.Final}
lut 20, 2019 9:19:27 PM org.hibernate.dialect.Dialect <init>
INFO: HHH000400: Using dialect: org.hibernate.dialect.PostgreSQLDialect
INFO 20.02.19 21:19: liquibase-hibernate: Using dialect org.hibernate.dialect.PostgreSQLDialect
[INFO] Performing Diff on database wiktordyngosz @ jdbc:postgresql://localhost:5432/applied (Default Schema: public)
INFO 20.02.19 21:19: liquibase: src/main/resources/liquibase-diff.xml exists, appending
[INFO] Differences written to Change Log File, src/main/resources/liquibase-diff.xml
[INFO] ------------------------------------------------------------------------
[INFO]
[INFO] ------------------------------------------------------------------------
[INFO] BUILD SUCCESS
根本原因可能是 Liquibase 插件在 class 路径上找不到您编译的 classes。
我发现您通过 src/main/resources/... 引用您的日志文件很可疑。当作为 Maven 构建的一部分执行 Liquibase 插件时，所有资源都应该直接在 class 路径上可用，例如changelog-master.xml（没有相对路径）。
尝试在编译后将 diff 目标作为 Maven 构建的一部分执行。
此 POM 配置将插件绑定到 process-classes phase:
<build>
<plugins>
<plugin>
<groupId>org.liquibase</groupId>
<artifactId>liquibase-maven-plugin</artifactId>
<version>3.6.3</version>
<dependencies>
...
</dependencies>
<configuration>
<verbose>true</verbose>
</configuration>
<executions>
<execution>
<goals>
<goal>diff</goal>
</goals>
<phase>process-classes</phase>
</execution>
</executions>
</plugin>
要执行此操作，运行 mvn process-classes 或稍后的阶段，如 mvn test。
我试图在已经提出的问题以及一些用户推荐的 post 中找到答案：http://www.operatornew.com/2012/11/automatic-db-migration-for-java-web.html 但没有任何运气。
问题是我使用 Maven 构建工具和 Postgres DB 为我的 Java 项目完成了 Liquibase 配置，但即使我已经定义了 Hibernate 实体，Liquibase diff 不考虑它们并且 不根据 JPA 注释实体生成变更锁。
我尝试了所有方法，但使用空 changelock-master.xml 并定义了 2 个实体，结果 diff.xml是空的。
这是我的pom.xml:
<!--LIQUIBASE-->
<dependency>
<groupId>org.liquibase</groupId>
<artifactId>liquibase-core</artifactId>
</dependency>
<dependency>
<groupId>org.liquibase</groupId>
<artifactId>liquibase-maven-plugin</artifactId>
<version>3.4.1</version>
</dependency>
...
<plugin>
<groupId>org.liquibase</groupId>
<artifactId>liquibase-maven-plugin</artifactId>
<version>3.5.3</version>
<dependencies>
<dependency>
<groupId>org.liquibase.ext</groupId>
<artifactId>liquibase-hibernate4</artifactId>
<version>3.6</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-beans</artifactId>
<version>4.1.7.RELEASE</version>
</dependency>
<dependency>
<groupId>org.springframework.data</groupId>
<artifactId>spring-data-jpa</artifactId>
<version>1.7.3.RELEASE</version>
</dependency>
</dependencies>
<configuration>
<propertyFile>src/main/resources/liquibase.properties</propertyFile>
<changeLogFile>src/main/resources/db/changelog/changelog-master.xml</changeLogFile>
</configuration>
</plugin>
这里我有我的 liquibase.properties 定义：
referenceUrl=hibernate:spring:com.victus.applied.entity?dialect=org.hibernate.dialect.PostgreSQLDialect
referenceDriver=liquibase.ext.hibernate.database.connection.HibernateDriver
referenceUsername=testusername
referencePassword=
driver=org.postgresql.Driver
url=jdbc:postgresql://localhost:5432/applied
username=testusername
password=
changeLogFile=src/main/resources/db/changelog/changelog-master.xml
diffChangeLogFile=src/main/resources/liquibase-diff.xml
outputChangeLogFile=src/main/resources/db/changelog/changelog-master.xml
在我的 application.properties 我还有：
##Liquibase
spring.liquibase.change-log=classpath:/db/changelog/changelog-master.xml
logging.level.liquibase = INFO
##Postgres DB
spring.datasource.url= jdbc:postgresql://localhost:5432/applied
spring.datasource.driver-class-name=org.postgresql.Driver
spring.datasource.username=wiktordyngosz
spring.datasource.password=
# The SQL dialect makes Hibernate generate better SQL for the chosen database
spring.jpa.properties.hibernate.dialect=org.hibernate.dialect.PostgreSQLDialect
spring.jpa.properties.hibernate.temp.use_jdbc_metadata_defaults = false
# Hibernate ddl auto (create, create-drop, validate, update)
spring.jpa.hibernate.ddl-auto=create
spring.jpa.show-sql=true
spring.messages.basename=validation
我定义了两个简单的实体，例如其中之一：
@Entity
@Table(name = "user")
@Getter
@Setter
@NoArgsConstructor
@EqualsAndHashCode
public class User {
@Id
@GeneratedValue(strategy = GenerationType.AUTO)
private Long id;
@NotNull
private String username;
@NotNull
private String password;
@Transient
private String passwordConfirm;
@ManyToMany
@JoinTable(name = "user_role", joinColumns = @JoinColumn(name = "user_id"), inverseJoinColumns = @JoinColumn(name = "role_id"))
private Set<Role> roles;
}
当我有一个空的 changelock-master.xml 文件并调用 mvn liquibase:diff 来生成基于 changelock 的在我的实体上，生成的变更锁是空的。 日志如下所示：
[INFO] ------------------------------------------------------------------------
[INFO] Parsing Liquibase Properties File
[INFO] File: src/main/resources/liquibase.properties
[INFO] 'outputChangeLogFile' in properties file is not being used by this task.
[INFO] ------------------------------------------------------------------------
[INFO] Executing on Database: jdbc:postgresql://localhost:5432/applied
INFO 20.02.19 21:19: liquibase-hibernate: Reading hibernate configuration hibernate:spring:com.victus.applied.entity?dialect=org.hibernate.dialect.PostgreSQLDialect
INFO 20.02.19 21:19: liquibase-hibernate: Found package com.victus.applied.entity
INFO 20.02.19 21:19: liquibase-hibernate: Found dialect org.hibernate.dialect.PostgreSQLDialect
INFO 20.02.19 21:19: liquibase-hibernate: Found hibernate.enhanced_idfalse
lut 20, 2019 9:19:26 PM org.hibernate.jpa.internal.util.LogHelper logPersistenceUnitInformation
INFO: HHH000204: Processing PersistenceUnitInfo [
name: default
...]
lut 20, 2019 9:19:26 PM org.hibernate.Version logVersion
INFO: HHH000412: Hibernate Core {4.3.11.Final}
lut 20, 2019 9:19:26 PM org.hibernate.cfg.Environment <clinit>
INFO: HHH000206: hibernate.properties not found
lut 20, 2019 9:19:26 PM org.hibernate.cfg.Environment buildBytecodeProvider
INFO: HHH000021: Bytecode provider name : javassist
lut 20, 2019 9:19:27 PM org.hibernate.annotations.common.reflection.java.JavaReflectionManager <clinit>
INFO: HCANN000001: Hibernate Commons Annotations {4.0.5.Final}
lut 20, 2019 9:19:27 PM org.hibernate.dialect.Dialect <init>
INFO: HHH000400: Using dialect: org.hibernate.dialect.PostgreSQLDialect
INFO 20.02.19 21:19: liquibase-hibernate: Using dialect org.hibernate.dialect.PostgreSQLDialect
[INFO] Performing Diff on database wiktordyngosz @ jdbc:postgresql://localhost:5432/applied (Default Schema: public)
INFO 20.02.19 21:19: liquibase: src/main/resources/liquibase-diff.xml exists, appending
[INFO] Differences written to Change Log File, src/main/resources/liquibase-diff.xml
[INFO] ------------------------------------------------------------------------
[INFO]
[INFO] ------------------------------------------------------------------------
[INFO] BUILD SUCCESS
根本原因可能是 Liquibase 插件在 class 路径上找不到您编译的 classes。
我发现您通过 src/main/resources/... 引用您的日志文件很可疑。当作为 Maven 构建的一部分执行 Liquibase 插件时，所有资源都应该直接在 class 路径上可用，例如changelog-master.xml（没有相对路径）。
尝试在编译后将 diff 目标作为 Maven 构建的一部分执行。
此 POM 配置将插件绑定到 process-classes phase:
<build>
<plugins>
<plugin>
<groupId>org.liquibase</groupId>
<artifactId>liquibase-maven-plugin</artifactId>
<version>3.6.3</version>
<dependencies>
...
</dependencies>
<configuration>
<verbose>true</verbose>
</configuration>
<executions>
<execution>
<goals>
<goal>diff</goal>
</goals>
<phase>process-classes</phase>
</execution>
</executions>
</plugin>
要执行此操作，运行 mvn process-classes 或稍后的阶段，如 mvn test。