绿色记忆 » Velocity https://blog.gmem.cc Mon, 06 Apr 2026 02:15:06 +0000 en-US hourly 1 http://wordpress.org/?v=3.9.14 Velocity学习笔记 https://blog.gmem.cc/velocity-study-note https://blog.gmem.cc/velocity-study-note#comments Wed, 16 May 2007 03:03:13 +0000 http://blog.gmem.cc/?p=1214 代码样例 Velocity宏样例 [crayon-69d36c0ac1a72739441136/] 一个比较复杂的实例 [crayon-69d36c0ac1a79884983798/]

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代码样例
Velocity宏样例
#macro( finHead $head )
#set( $params = $springCtx.getBean('appConfig').params )
<HEAD>
	<VER>${params.version}</VER>
	<SRC>${params.srcNode}</SRC>
	<DES>${params.destNode}</DES>
	<APP>${params.appName}</APP>
	<MsgNo>$head.msgNo</MsgNo>
	<MsgNoOld>$!{head.msgNoOld}</MsgNoOld>
	<MsgID>$head.msgId</MsgID>
	<MsgRef>$head.msgRef</MsgRef>
	<WorkDate>$head.workDate</WorkDate>
	<Reserve></Reserve>
</HEAD>
#end 
一个比较复杂的实例
<?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>
    #foreach($em in $ems)
        ##循环处理所有实体映射定义
        <class entity-name="$em.name"  #if($em.node) node="$em.node" #end table="$em.table">
            #set($pms = $em.allPropertyMappings)
            #foreach($pm in $pms)
                #if($helper.instanceOf($pm,"sparknet.canary.core.mapping.model.IdPropertyMapping"))
                    ##标识符属性
                    #set($idElName = "id")
                    #if($pm.composite)
                        #set($idElName = "composite-id")
                    #end
                    <$idElName name="$pm.name" #if($pm.node) node="$pm.node" #end #if(not $pm.composite) type="$pm.uniqueKeyMapping.type" #end>
                        #set($kms = $pm.keyMappings)
                        #foreach($km in $kms)
                            #if($pm.composite)
                                <key-property name="$km.name" #if($km.node) node="$km.node" #end type="$km.type" column="$km.column" />
                            #else
                                <column name="$km.column"/>
                            #end
                        #end
                        <generator class="assigned" />
                    </$idElName>
                #elseif($helper.instanceOf($pm,"sparknet.canary.core.mapping.model.SimplePropertyMapping"))
                    ##简单属性
                    <property name="$pm.name" #if($pm.node) node="$pm.node" #end type="$pm.type" column="$pm.column" />
                #elseif($helper.instanceOf($pm,"sparknet.canary.core.mapping.model.O2MPropertyMapping"))
                    ##一对多引用
                    <set name="$pm.name" #if($pm.node) node="$pm.node" #end cascade="all" fetch="join" lazy="false">
                        <key>
                            #set($kms = $pm.keyMappings)
                            #foreach($km in $kms)
                                <column name="$km.column"/>
                            #end
                        </key>
                        <one-to-many entity-name="$pm.refEntityMapping.name"/>
                    </set>
                #elseif($helper.instanceOf($pm,"sparknet.canary.core.mapping.model.M2OPropertyMapping"))
                    ##多对一引用
                    <many-to-one name="$pm.name" #if($pm.node) node="$pm.node" #end entity-name="$pm.refEntityMapping.name" cascade="all" fetch="join" lazy="false">
                        #set($kms = $pm.keyMappings)
                        #foreach($km in $kms)
                            <column name="$km.column"/>
                        #end
                    </many-to-one>
                #elseif($helper.instanceOf($pm,"sparknet.canary.core.mapping.model.M2MPropertyMapping"))
                    ##多对多引用(join-table based)
                    <set name="$pm.name" #if($pm.node) node="$pm.node" #end table="$pm.joinTable" cascade="all" fetch="join" lazy="false">
                        <key>
                            #set($kms = $pm.keyMappings)
                            #foreach($km in $kms)
                                <column name="$km.column"/>
                            #end
                        </key>
                        <many-to-many entity-name="$pm.refEntityMapping.name">
                            #set($okms = $pm.oppoKeyMappings)
                            #foreach($okm in $okms)
                                <column name="$okm.column"/>
                            #end
                        </many-to-many>
                    </set>
                #end
            #end
        </class>
    #end
</hibernate-mapping>

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