Liquibase maven插件不';t检测Hibernate hbm.xml和changelog.xml之间的更改
我最近开始了一个利用MySQL数据库和Maven、Hibernate和Liquibase的项目,我在这些方面都没有经验,所以请原谅我的天真 我现在的目标是尝试生成一个diff changelog,我假设它是一个changelog,显示普通changelog.xml和hbm.xml之间的变化 我在hbm中插入了一个新属性int age,希望liquibase能够检测到更改日志中没有包含该年龄,然后生成一个diff changelog,表示有一个额外的属性或类似的内容。然而,它生成了一个空的变更日志,并表示没有任何变更 以下是我的项目的一些部分,但我只包括那些似乎与liquibase maven:diff插件相关的部分: User.javaLiquibase maven插件不';t检测Hibernate hbm.xml和changelog.xml之间的更改,hibernate,diff,liquibase,hbm,changelog,Hibernate,Diff,Liquibase,Hbm,Changelog,我最近开始了一个利用MySQL数据库和Maven、Hibernate和Liquibase的项目,我在这些方面都没有经验,所以请原谅我的天真 我现在的目标是尝试生成一个diff changelog,我假设它是一个changelog,显示普通changelog.xml和hbm.xml之间的变化 我在hbm中插入了一个新属性int age,希望liquibase能够检测到更改日志中没有包含该年龄,然后生成一个diff changelog,表示有一个额外的属性或类似的内容。然而,它生成了一个空的变更日志
package com.jnguyen.project;
import javax.persistence.Entity;
import javax.persistence.Id;
@Entity
public class User extends CustomizableEntity{
@Id
private int id;
private String username;
private String firstname;
private String lastname;
private int age; //new property which doesn't exist in changelog.xml yet
public User() {}
public void createUsername(String firstname, String lastname, int id) {
this.username = firstname.substring(0,2).toLowerCase() + lastname.substring(0,2).toLowerCase() + String.format("%05d", id);
}
public void setAge(int age)
{
this.age = age;
}
public int getAge() {
return this.age;
}
public void setUsername(String username) {
this.username = username;
}
public String getUsername() {
return this.username;
}
public void setFirstname(String firstname) {
this.firstname = firstname;
}
public String getFirstname() {
return this.firstname;
}
public void setLastname(String lastname) {
this.lastname = lastname;
}
public String getLastname() {
return this.lastname;
}
private void setId(int id) {
this.id = id;
}
public int getId() {
return this.id;
}
}
User.hbm.xml
<?xml version="1.0"?>
<!DOCTYPE hibernate-mapping PUBLIC
"-//Hibernate/Hibernate Mapping DTD 3.0//EN"
"http://www.hibernate.org/dtd/hibernate-mapping-3.0.dtd">
<hibernate-mapping auto-import="true" package="com.jnguyen.project">
<class name="User" table="users">
<id name="id" column="id">
<generator class="increment"/>
</id>
<property name="firstname"/>
<property name="lastname"/>
<property name="username"/>
<property name="age"/>
<dynamic-component insert="true" name="customProperties" optimistic-lock="true" unique="false" update="true">
</dynamic-component>
</class>
</hibernate-mapping>
<databaseChangeLog xmlns="http://www.liquibase.org/xml/ns/dbchangelog"
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-2.0.xsd">
<changeSet id="1.0_1" author="jnguyen">
<createTable tableName="users">
<column name="id" type="int(5)"/>
<column name="firstname" type="varchar(20)"/>
<column name="lastname" type="varchar(20)"/>
<column name="username" type="varchar(20)"/>
</createTable>
<addPrimaryKey columnNames="id"
tableName="users"/>
<addAutoIncrement
columnDataType="int(5) UNSIGNED ZEROFILL"
columnName="id"
incrementBy="1"
startWith="1"
tableName="users"/>
</changeSet>
</databaseChangeLog>
<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>com.jnguyen.project</groupId>
<artifactId>jnguyen.project</artifactId>
<version>1.0-SNAPSHOT</version>
<name>Hibernate Project</name>
<properties>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
</properties>
<dependencies>
<dependency>
<groupId>org.codehaus.grepo</groupId>
<artifactId>grepo-query-hibernate</artifactId>
<version>1.5.3</version>
</dependency>
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>3.8.1</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>javax.transaction</groupId>
<artifactId>jta</artifactId>
<version>1.1</version>
</dependency>
<dependency>
<groupId>teamdev</groupId>
<artifactId>slf4j-api</artifactId>
<version>1.5.8</version>
</dependency>
<dependency>
<groupId>org.slf4j</groupId>
<artifactId>slf4j-log4j12</artifactId>
<version>1.7.5</version>
</dependency>
<dependency>
<groupId>javax.persistence</groupId>
<artifactId>persistence-api</artifactId>
<version>1.0-rev-1</version>
</dependency>
<dependency>
<groupId>org.codehaus.mojo.hibernate3</groupId>
<artifactId>maven-hibernate3</artifactId>
<version>2.2</version>
<type>pom</type>
</dependency>
<dependency>
<groupId>org.liquibase</groupId>
<artifactId>liquibase-core</artifactId>
<version>3.0.0-rc2</version>
</dependency>
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
<version>5.1.25</version>
</dependency>
<dependency>
<groupId>org.hibernate</groupId>
<artifactId>com.springsource.org.hibernate.core</artifactId>
<version>4.1.0.Final</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring</artifactId>
<version>2.5.6</version>
</dependency>
<!-- Spring AOP dependency -->
<dependency>
<groupId>cglib</groupId>
<artifactId>cglib</artifactId>
<version>2.2</version>
</dependency>
<dependency>
<groupId>org.apache.commons</groupId>
<artifactId>org.apache.commons.logging</artifactId>
<version>1.0.4.v200706111724</version>
</dependency>
<dependency>
<groupId>log4j</groupId>
<artifactId>log4j</artifactId>
<version>1.2.17</version>
</dependency>
<dependency>
<groupId>net.customware.liquibase</groupId>
<artifactId>liquibase-hibernate</artifactId>
<version>2.1.0</version>
</dependency>
<dependency>
<groupId>org.hibernate</groupId>
<artifactId>hibernate-core</artifactId>
<version>4.2.2.Final</version>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.liquibase</groupId>
<artifactId>liquibase-maven-plugin</artifactId>
<version>2.0.5</version>
<configuration>
<diffChangeLogFile>db/ddl/diffchangelog.xml</diffChangeLogFile>
<changeLogFile>db/ddl/changelog.xml</changeLogFile>
<propertyFile>db/liquibase.properties</propertyFile>
<promptOnNonLocalDatabase>false</promptOnNonLocalDatabase>
<driver>com.mysql.jdbc.Driver</driver>
<url>jdbc:mysql://localhost:3306/test</url>
<username>root</username>
<password>rootpass</password>
<referenceDriver>com.mysql.jdbc.Driver</referenceDriver>
<referenceUrl>jdbc:mysql://localhost:3306/test</referenceUrl>
<referenceUsername>root</referenceUsername>
<referencePassword>rootpass</referencePassword>
<migrationSqlOutputFile>script.sql</migrationSqlOutputFile>
</configuration>
</plugin>
</plugins>
</build>
</project>
pom.xml
<?xml version="1.0"?>
<!DOCTYPE hibernate-mapping PUBLIC
"-//Hibernate/Hibernate Mapping DTD 3.0//EN"
"http://www.hibernate.org/dtd/hibernate-mapping-3.0.dtd">
<hibernate-mapping auto-import="true" package="com.jnguyen.project">
<class name="User" table="users">
<id name="id" column="id">
<generator class="increment"/>
</id>
<property name="firstname"/>
<property name="lastname"/>
<property name="username"/>
<property name="age"/>
<dynamic-component insert="true" name="customProperties" optimistic-lock="true" unique="false" update="true">
</dynamic-component>
</class>
</hibernate-mapping>
<databaseChangeLog xmlns="http://www.liquibase.org/xml/ns/dbchangelog"
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-2.0.xsd">
<changeSet id="1.0_1" author="jnguyen">
<createTable tableName="users">
<column name="id" type="int(5)"/>
<column name="firstname" type="varchar(20)"/>
<column name="lastname" type="varchar(20)"/>
<column name="username" type="varchar(20)"/>
</createTable>
<addPrimaryKey columnNames="id"
tableName="users"/>
<addAutoIncrement
columnDataType="int(5) UNSIGNED ZEROFILL"
columnName="id"
incrementBy="1"
startWith="1"
tableName="users"/>
</changeSet>
</databaseChangeLog>
<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>com.jnguyen.project</groupId>
<artifactId>jnguyen.project</artifactId>
<version>1.0-SNAPSHOT</version>
<name>Hibernate Project</name>
<properties>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
</properties>
<dependencies>
<dependency>
<groupId>org.codehaus.grepo</groupId>
<artifactId>grepo-query-hibernate</artifactId>
<version>1.5.3</version>
</dependency>
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>3.8.1</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>javax.transaction</groupId>
<artifactId>jta</artifactId>
<version>1.1</version>
</dependency>
<dependency>
<groupId>teamdev</groupId>
<artifactId>slf4j-api</artifactId>
<version>1.5.8</version>
</dependency>
<dependency>
<groupId>org.slf4j</groupId>
<artifactId>slf4j-log4j12</artifactId>
<version>1.7.5</version>
</dependency>
<dependency>
<groupId>javax.persistence</groupId>
<artifactId>persistence-api</artifactId>
<version>1.0-rev-1</version>
</dependency>
<dependency>
<groupId>org.codehaus.mojo.hibernate3</groupId>
<artifactId>maven-hibernate3</artifactId>
<version>2.2</version>
<type>pom</type>
</dependency>
<dependency>
<groupId>org.liquibase</groupId>
<artifactId>liquibase-core</artifactId>
<version>3.0.0-rc2</version>
</dependency>
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
<version>5.1.25</version>
</dependency>
<dependency>
<groupId>org.hibernate</groupId>
<artifactId>com.springsource.org.hibernate.core</artifactId>
<version>4.1.0.Final</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring</artifactId>
<version>2.5.6</version>
</dependency>
<!-- Spring AOP dependency -->
<dependency>
<groupId>cglib</groupId>
<artifactId>cglib</artifactId>
<version>2.2</version>
</dependency>
<dependency>
<groupId>org.apache.commons</groupId>
<artifactId>org.apache.commons.logging</artifactId>
<version>1.0.4.v200706111724</version>
</dependency>
<dependency>
<groupId>log4j</groupId>
<artifactId>log4j</artifactId>
<version>1.2.17</version>
</dependency>
<dependency>
<groupId>net.customware.liquibase</groupId>
<artifactId>liquibase-hibernate</artifactId>
<version>2.1.0</version>
</dependency>
<dependency>
<groupId>org.hibernate</groupId>
<artifactId>hibernate-core</artifactId>
<version>4.2.2.Final</version>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.liquibase</groupId>
<artifactId>liquibase-maven-plugin</artifactId>
<version>2.0.5</version>
<configuration>
<diffChangeLogFile>db/ddl/diffchangelog.xml</diffChangeLogFile>
<changeLogFile>db/ddl/changelog.xml</changeLogFile>
<propertyFile>db/liquibase.properties</propertyFile>
<promptOnNonLocalDatabase>false</promptOnNonLocalDatabase>
<driver>com.mysql.jdbc.Driver</driver>
<url>jdbc:mysql://localhost:3306/test</url>
<username>root</username>
<password>rootpass</password>
<referenceDriver>com.mysql.jdbc.Driver</referenceDriver>
<referenceUrl>jdbc:mysql://localhost:3306/test</referenceUrl>
<referenceUsername>root</referenceUsername>
<referencePassword>rootpass</referencePassword>
<migrationSqlOutputFile>script.sql</migrationSqlOutputFile>
</configuration>
</plugin>
</plugins>
</build>
</project>
由此生成的diffchangelog.xml:
<?xml version="1.0" encoding="UTF-8" standalone="no"?>
<databaseChangeLog xmlns="http://www.liquibase.org/xml/ns/dbchangelog" 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-2.0.xsd"/>
尽管在hbm中添加了一个额外的属性
很明显,我做了一些错误的事情,它没有检测到更改,我曾多次尝试查看liquibase hibernate文档,但现在我被卡住了。我很抱歉,如果我的帖子看起来很大,如果我的代码看起来很凌乱,我还在学习。这也是我第一次在stackoverflow上发帖,请原谅。
谢谢大家!
另外,如果需要我的项目的其他部分,我会按要求提交。这里的数据流都是错误的 Hibernate获取在数据库中找到的内容,并在
.hbm.xml
文件的帮助下生成POJO
Liquibase获取变更日志并将其应用于数据库
因此,为了更改数据库,您需要:
.hbm.xml
文件以反映更改日志中的更改现在您将看到liquibase应用您的更改,因为它位于更改日志中。Liquibase根本不知道或关心
.hbm.xml
文件中的内容。该文件仅用于hibernate创建POJO。这里的数据流都是错误的
Hibernate获取在数据库中找到的内容,并在.hbm.xml
文件的帮助下生成POJO
Liquibase获取变更日志并将其应用于数据库
因此,为了更改数据库,您需要:
.hbm.xml
文件以反映更改日志中的更改现在您将看到liquibase应用您的更改,因为它位于更改日志中。Liquibase根本不知道或关心
.hbm.xml
文件中的内容。该文件仅用于hibernate创建POJO。您配置数据库的方式不对referenceUrl
应该是hibernate:hibernate.cfg.xml
而url
应该是jdbc:mysql://localhost:3306/test
您配置数据库的方式不对referenceUrl
应该是hibernate:hibernate.cfg.xml
而url
应该是jdbc:mysql://localhost:3306/test
嗨,你解决过这个问题吗?我现在也有同样的问题。它说没有区别,即使我手动将一个新表放入数据库只是为了检查…嗨,你解决过这个问题吗?我现在也有同样的问题。它说没有区别,即使我手动将一个新表放入数据库只是为了检查。。。