Hibernate hbm2ddl ant 文件路径

发布于 2024-09-19 20:01:10 字数 1676 浏览 7 评论 0原文

我在使用 Hibernate Tools 生成数据库架构时遇到问题。这是我的ant文件

<project name="Schema generator for MySQL database" basedir=".">
   <description>
 This file is used for running Hibernate Tools Ant task.
    It is used to generate database schema based on hibernate configuration
   </description>

   <path id="toolslib">
      <path location="lib/hibernate-tools.jar" />
      <path location="lib/hibernate-3.2.4.ga.jar" />
      <path location="lib/freemarker.jar" />
      <path location="lib/mysql-connector-java-5.1.13" />
      <path location="lib/dom4j-1.6.1.jar" />
      <path location="hibernate_mappings/Address.hbm.xml" />
   </path>

   <taskdef name="hibernatetool" classname="org.hibernate.tool.ant.HibernateToolTask" classpathref="toolslib" />

   <hibernatetool destdir="${build.dir}/generated">
      <classpath>
         <path location="${build.dir}/classes" />
      </classpath>
      <configuration configurationfile="hibernate.cfg.xml" />
      <hbm2ddl />
      <hbm2dao />
   </hibernatetool>
</project>

,运行ant任务时出现此错误:

C:\ work \ gwt_workspace \ billing-cms \ dao \ src \ main \ resources \ build.xml:19:org.hibernate.MappingNotFoundException:资源:hibernate_mappings / Address未找到 .hbm.xml

我的文件系统路径层次结构如下:

+resources
   -hibernate_mappings
      -Address.hbm.xml
      -User.hbm.xml
      -etc..
   -hibernate.cfg.xml
   -build.xml

我在 hibernate.hbm.xml 中定义了映射,如下所示:

<mapping resource="hibernate_mappings/Address.hbm.xml" />

I am having troubles with generating database schema with Hibernate Tools. This is my ant file

<project name="Schema generator for MySQL database" basedir=".">
   <description>
 This file is used for running Hibernate Tools Ant task.
    It is used to generate database schema based on hibernate configuration
   </description>

   <path id="toolslib">
      <path location="lib/hibernate-tools.jar" />
      <path location="lib/hibernate-3.2.4.ga.jar" />
      <path location="lib/freemarker.jar" />
      <path location="lib/mysql-connector-java-5.1.13" />
      <path location="lib/dom4j-1.6.1.jar" />
      <path location="hibernate_mappings/Address.hbm.xml" />
   </path>

   <taskdef name="hibernatetool" classname="org.hibernate.tool.ant.HibernateToolTask" classpathref="toolslib" />

   <hibernatetool destdir="${build.dir}/generated">
      <classpath>
         <path location="${build.dir}/classes" />
      </classpath>
      <configuration configurationfile="hibernate.cfg.xml" />
      <hbm2ddl />
      <hbm2dao />
   </hibernatetool>
</project>

I get this error when running ant task:

C:\work\gwt_workspace\billing-cms\dao\src\main\resources\build.xml:19: org.hibernate.MappingNotFoundException: resource: hibernate_mappings/Address.hbm.xml not found

My filesystem path hierarchy is like this:

+resources
   -hibernate_mappings
      -Address.hbm.xml
      -User.hbm.xml
      -etc..
   -hibernate.cfg.xml
   -build.xml

I have my mappings defined inside hibernate.hbm.xml like this:

<mapping resource="hibernate_mappings/Address.hbm.xml" />

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傲影 2024-09-26 20:01:11

你不需要 Ant 来做这件事。如果您只运行一个 Hibernate 应用程序(例如,虚拟测试或主应用程序),它会为您运行 hbm2ddl。

确保运行时 .hbm.xml 文件位于 Ant 类路径中。也许这就是问题所在。 (没有仔细查看您的 build.xml 来了解;只是将其扔在那里。)

这是一个有效的 Hibernate 配置示例,包括 hbm2ddl。按照这个图案设计你的:

<!DOCTYPE hibernate-configuration PUBLIC
    "-//Hibernate/Hibernate Configuration DTD 3.0//EN"
    "http://hibernate.sourceforge.net/hibernate-configuration-3.0.dtd">

<hibernate-configuration>
    <session-factory>
        <property name="connection.driver_class">com.mysql.jdbc.Driver</property>
        <property name="connection.url">jdbc:mysql://localhost:3306/hibernate?autoReconnect=true</property>
        <property name="connection.username">hibernate</property>
        <property name="connection.password">hibernate</property>
        <property name="connection.pool_size">1</property>
        <property name="hibernate.dialect">org.hibernate.dialect.MySQL5InnoDBDialect</property>
        <property name="show_sql">true</property>
        <property name="generate_statistics">true</property>
        <property name="query.factory_class">org.hibernate.hql.classic.ClassicQueryTranslatorFactory</property>
        <property name="cache.provider_class">org.hibernate.cache.NoCacheProvider</property>
        <property name="cache.use_minimal_puts">false</property>
        <property name="cache.use_query_cache">false</property>
        <property name="order_updates">false</property>
        <property name="hbm2ddl.auto">create-drop</property>
        <property name="current_session_context_class">thread</property>

        <mapping resource="hibernate/policy/persistence/hibernate/Person.hbm.xml"/>

    </session-factory>
</hibernate-configuration>

You don't need Ant to do this. If you just run one Hibernate app (e.g., a dummy test or main), it'll run hbm2ddl for you.

Make sure the .hbm.xml files are in your Ant classpath when you run. Perhaps that's the problem. (Didn't look closely enough at your build.xml to know; just throwing it out there.)

Here's a sample Hibernate config that works, including hbm2ddl. Pattern yours after this:

<!DOCTYPE hibernate-configuration PUBLIC
    "-//Hibernate/Hibernate Configuration DTD 3.0//EN"
    "http://hibernate.sourceforge.net/hibernate-configuration-3.0.dtd">

<hibernate-configuration>
    <session-factory>
        <property name="connection.driver_class">com.mysql.jdbc.Driver</property>
        <property name="connection.url">jdbc:mysql://localhost:3306/hibernate?autoReconnect=true</property>
        <property name="connection.username">hibernate</property>
        <property name="connection.password">hibernate</property>
        <property name="connection.pool_size">1</property>
        <property name="hibernate.dialect">org.hibernate.dialect.MySQL5InnoDBDialect</property>
        <property name="show_sql">true</property>
        <property name="generate_statistics">true</property>
        <property name="query.factory_class">org.hibernate.hql.classic.ClassicQueryTranslatorFactory</property>
        <property name="cache.provider_class">org.hibernate.cache.NoCacheProvider</property>
        <property name="cache.use_minimal_puts">false</property>
        <property name="cache.use_query_cache">false</property>
        <property name="order_updates">false</property>
        <property name="hbm2ddl.auto">create-drop</property>
        <property name="current_session_context_class">thread</property>

        <mapping resource="hibernate/policy/persistence/hibernate/Person.hbm.xml"/>

    </session-factory>
</hibernate-configuration>
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