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用xdoclet 和xdoclet2来产生hiberante map文件的一些区别

xdoclet升级到1.2.3了,文档上说是支持hibernate 3了,实际上,经过今天的检验,发现xdoclet 1.2.3只是支持hibernate 3的map文件了,而生成的hibernate 3的config文件,却还hibernate 2的。
 
一个简单的例子(就是这个例子:ttp://www.redsaga.com/hibernate-ref/3.1.2/zh-cn/html/tutorial.html#tutorial-firstapp-firstclass,按它上面的介绍,设置好各个目录结构):
package events;
import java.util.Date;
/**
 *
 * @hibernate.class table="EVENTS"
 */
public class Event {

    private Long id;
    private String title;
    private Date date;
    public Event() {
    }
    /**
     * @hibernate.id
     * generator-class="uuid.hex"
     * type="java.lang.String"
     * unsaved-value=""
     * column="EVENT_ID"
     */
    public Long getId() {
        return id;
    }
    private void setId(Long id) {
        this.id = id;
    }
    /**
     * @hibernate.property
     * column="EVENT_DATE"
     * type = "timestamp"
     *
     *
     */
    public Date getDate() {
        return date;
    }
    public void setDate(Date date) {
        this.date = date;
    }
    /**
     * @hibernate.property
     * column="EVENT_TITLE"
     * length="20"
     *
     */
    public String getTitle() {
        return title;
    }
    public void setTitle(String title) {
        this.title = title;
    }
}
 
上面的POJO,已经加上了xdoclet的javadoc tag了,现在用下面的ant文件来产生map和config文件:
 
<project name="xdoclet" default="hibernatedoclet">
    <property name="sourcedir" value="${basedir}/src"/>
    <property name="targetdir" value="${basedir}/bin"/>
    <property name="librarydir" value="${basedir}/lib"/>
    <path id="libraries">
        <fileset dir="${librarydir}">
            <include name="*.jar"/>
        </fileset>
    </path>
    <target name="clean">
        <delete dir="${targetdir}"/>
        <mkdir dir="${targetdir}"/>
    </target>
    <target name="compile" depends="clean, copy-resources">
        <javac srcdir="${sourcedir}"
               destdir="${targetdir}"
               classpathref="libraries"/>
    </target>
    <target name="copy-resources">
        <copy todir="${targetdir}">
            <fileset dir="${sourcedir}">
                <exclude name="**/*.java"/>
            </fileset>
        </copy>
    </target>
    <taskdef name="hibernatedoclet" classname="xdoclet.modules.hibernate.HibernateDocletTask">
       <classpath>
             <fileset dir="E:/workspace/xdoclet-1.2.3/lib" includes="*.jar"/>
        </classpath>
    </taskdef>
    <target name="hibernate" depends="compile" description="Generate mapping documents">
          <hibernatedoclet
                destdir="${targetdir}"
                excludedtags="@version,@author,@todo,@see"
                force="false"
                verbose="true">
                <fileset dir="${sourcedir}">
                    <include name="**/*.java"/>
                </fileset>
                <hibernatecfg
                        dialect="net.sf.hibernate.dialect.xxxxx"
                        driver="com.mysql.jdbc.Driver"
                        jdbcUrl="jdbc:mysql://xxxxx"
                        userName="xxxxx"
                        password="xxxxx"/>
                       
                 <hibernate version="3.0"/>
            </hibernatedoclet>
        </target>
</project>
 
结果如下:
Event.hbm.xml:
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE hibernate-mapping PUBLIC
    "-//Hibernate/Hibernate Mapping DTD 3.0//EN"
    "http://hibernate.sourceforge.net/hibernate-mapping-3.0.dtd">
<hibernate-mapping
>
    <class
        name="events.Event"
        table="EVENTS"
    >
        <id
            name="id"
            column="EVENT_ID"
            type="java.lang.String"
            unsaved-value=""
        >
            <generator class="uuid.hex">
              <!-- 
                  To add non XDoclet generator parameters, create a file named
                  hibernate-generator-params-Event.xml
                  containing the additional parameters and place it in your merge dir.
              -->
            </generator>
        </id>
        <property
            name="date"
            type="timestamp"
            update="true"
            insert="true"
            column="EVENT_DATE"
        />
        <property
            name="title"
            type="java.lang.String"
            update="true"
            insert="true"
            column="EVENT_TITLE"
            length="20"
        />
        <!--
            To add non XDoclet property mappings, create a file named
                hibernate-properties-Event.xml
            containing the additional properties and place it in your merge dir.
        -->
    </class>
</hibernate-mapping>
hibernate.cfg.xml:
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE hibernate-configuration PUBLIC "-//Hibernate/Hibernate Configuration DTD 2.0//EN" "http://hibernate.sourceforge.net/hibernate-configuration-2.0.dtd">
<!-- Generated file - Do not edit! -->
<hibernate-configuration>
 <!-- a SessionFactory instance listed as /jndi/name -->
 <session-factory>
  <!-- properties -->
  <property name="dialect">net.sf.hibernate.dialect.MySQLDialect</property>
  <property name="show_sql">false</property>
  <property name="use_outer_join">false</property>
   <property name="connection.username">hibernate</property>
   <property name="connection.password">aPassword</property>
   <property name="connection.driver_class">com.mysql.jdbc.Driver</property>
   <property name="connection.url">jdbc:mysql://xxx</property>
  <!-- mapping files -->
  <mapping resource="events/Event.hbm.xml"/>
 </session-factory>
</hibernate-configuration>
发现没有,上面的config文件中的DTD版本还是2.0。
 

对于hibernate3来说,现在多了个选择,用xdoclet2也可以产生map文件,但是config文件好像没有办法。
还是用上面POJO,对应的ant文件如下(注意,简单起见,要把xdoclet2下面的lib目录下的jar文件,全部copy到${basedir}/lib下):
<project name="xdoclet2-plugin" default="hibernatedoclet">
    <property name="sourcedir" value="${basedir}/src"/>
    <property name="targetdir" value="${basedir}/bin"/>
     <property name="librarydir" value="${basedir}/lib"/>
 
    <path id="libraries">
        <fileset dir="${librarydir}">
            <include name="*.jar"/>
        </fileset>
    </path>
    <target name="clean">
        <delete dir="${targetdir}"/>
        <mkdir dir="${targetdir}"/>
    </target>
    <target name="compile" depends="clean, copy-resources">
        <javac srcdir="${sourcedir}"
               destdir="${targetdir}"
               classpathref="libraries"/>
    </target>
    <target name="copy-resources">
        <copy todir="${targetdir}">
            <fileset dir="${sourcedir}">
                <exclude name="**/*.java"/>
            </fileset>
        </copy>
    </target>
    <target name="hibernatedoclet"
            depends="compile"
            description="Generate Persistence and form classes">
            <taskdef
                name="xdoclet"
                classname="org.xdoclet.ant.XDocletTask"
                classpathref="libraries"
                />
            <xdoclet>
                <!-- defines the file handled by xdoclet2 -->
                <fileset dir="${sourcedir}">
                    <include name="**/*.java"/>
                </fileset>
                <!-- defines the processing of a plugin -->
                <component
                    classname="org.xdoclet.plugin.hibernate.HibernateMappingPlugin"
                    destdir="${targetdir}"
                    version="3.0"
                    />
            </xdoclet>
        </target>

</project>
 
结果如下:
Event.hbm.xml:
<?xml version="1.0" encoding="ISO-8859-1"?>
<!DOCTYPE hibernate-mapping PUBLIC "-//Hibernate/Hibernate Mapping DTD 3.0//EN" "http://hibernate.sourceforge.net/hibernate-mapping-3.0.dtd">
<hibernate-mapping>
  <class table="EVENTS" name="events.Event">
    <id type="java.lang.String" column="EVENT_ID" unsaved-value="" access="method" name="id">
      <generator class="uuid.hex"/>
    </id>
    <property name="date" type="timestamp" access="method" column="EVENT_DATE"/>
    <property name="title" length="20" access="method" column="EVENT_TITLE"/>
  </class>
</hibernate-mapping>
发现用xdoclet1.2.3和xdoclet2产生的map文件还是有些区别的,包括形式和内容,也许那些区别都无所谓,但是毕竟有不同。从形式来看,明星xdoclet2产生的文件好看些,所以,以后,我看还是应该用xdoclet2来产生map文件。config文件,就手写吧。
 

 
应用 xdoclet1.2.3和xdoclet2,要注意的最大的一点是:POJO的javadoc tag中的所有@hibernate.collection-xxxxx都已经改变成@hibernate.xxxx了。所以,对已有的POJO应用xdoclet2时,可能要做个简单的替换工作。
posted on 2006-09-27 17:30 Peter Pan 阅读(931) 评论(1)  编辑  收藏 所属分类: SSH

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# re: xdoclet1.2.3&xdoclet2 2010-06-06 00:29 guest
xdoclet1.2.3还是支持hibernate3的,你可以在hibernatecfg标签里,加上一个属性,version="3.0"  回复  更多评论
  


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