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XQuery的一个简单例子(转载)

XQuery的一个简单例子(转载)

来源:中国XML论坛
看到有人问如何使用xquery,其实我也是个菜鸟。
刚刚运行了两个例子,给不会的指个路。
首先下载saxon8.1.1   http://saxon.sourceforge.net/
Saxon-B 8.1.1是免费的,Saxon-SA 8.1.1是有试用期的,前者就够了。
系统要安装jdk1.4.1以上版本,因为saxon是用这个版本写的,但不知道1.3.1行不。
记得设置JAVA_HOME环境变量指向jdk。
然后,试试吧!

例子:文件characters.xml

<characters>
<character>
    <name>Aleria</name>
    <gender>Female</gender>
    <species>Heroleim</species>
    <vocation>Bard</vocation>
    <level>5</level>
    <health>25</health>
</character>
<character>
    <name>Shar</name>
    <gender>Male</gender>
    <species>Human</species>
    <vocation>Merchant</vocation>
    <level>6</level>
    <health>28</health>
</character>
<character>
    <name>Gite</name>
    <gender>Female</gender>
    <species>Aelvar</species>
    <vocation>Mage</vocation>
    <level>7</level>
    <health>18</health>
</character>
<character>
    <name>Horukkan</name>
    <gender>Male</gender>
    <species>Udrecht</species>
    <vocation>Warrior</vocation>
    <level>5</level>
    <health>32</health>
</character>
<character>
    <name>Gounna</name>
    <gender>Female</gender>
    <species>Noleim</species>
    <vocation>Mage</vocation>
    <level>8</level>
    <health>31</health>
</character>
<character>
    <name>Sheira</name>
    <gender>Female</gender>
    <species>Human</species>
    <vocation>Cleric</vocation>
    <level>4</level>
    <health>17</health>
</character>
<character>
    <name>Drue</name>
    <gender>Female</gender>
    <species>Voleim</species>
    <vocation>Warrior</vocation>
    <level>6</level>
    <health>32</health>
</character>
<character>
    <name>Paccu</name>
    <gender>Male</gender>
    <species>Human</species>
    <vocation>Merchant</vocation>
    <level>5</level>
    <health>24</health>
</character>
</characters>

查询文件:Date.xquery
for $character in doc('characters.xml')//character
order by $character/name descending
return
      <dateReport>
            {$character/name}
            
      </dateReport>
(: Stylus Studio meta-information - (c)1998-2003. Sonic Software Corporation. All rights reserved.
<metaInformation>
<scenarios/><MapperInfo><TargetSchema SchemaFilePath="" SchemaRoot="" AssociatedInstance=""/></MapperInfo>
</metaInformation>
:)

在命令提示下,输入:
set classpath=d:\saxon\saxon8.jar (saxon8.jar所在文件夹)
java net.sf.saxon.Query -s characters.xml Date.xquery
ok!
看结果吧!

D:\xml>java net.sf.saxon.Query -s characters.xml Date.xquery
<?xml version="1.0" encoding="UTF-8"?>
<dateReport>
   <name>Sheira</name>
</dateReport>
<dateReport>
   <name>Shar</name>
</dateReport>
<dateReport>
   <name>Paccu</name>
</dateReport>
<dateReport>
   <name>Horukkan</name>
</dateReport>
<dateReport>
   <name>Gounna</name>
</dateReport>
<dateReport>
   <name>Gite</name>
</dateReport>
<dateReport>
   <name>Drue</name>
</dateReport>
<dateReport>
   <name>Aleria</name>
</dateReport>


posted on 2008-01-31 16:32 gembin 阅读(307) 评论(0)  编辑  收藏


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