本文介绍了一个使用 Spry 技术创建动态网页内容的示例。该示例通过两个 XML 数据集展示了如何在点击不同菜单项时动态加载详细信息。首先列出特殊菜单项的基本信息，当用户点击某一项时，则会显示该项的详细配料。
页面代码：
test.html
data.xml
<?xml version="1.0" encoding="UTF-8"?>
<specials>
<menu_item id="1">
<item>夏日沙拉</item>
<description>organic butter lettuce with apples, blood oranges, gorgonzola, and raspberry vinaigrette.</description>
<price>7</price>
<url>summersalad.xml?id=1</url>
</menu_item>
<menu_item id="2">
<item>Thai Noodle Salad</item>
<description>lightly sauteed in sesame oil with baby bok choi, portobello mushrooms, and scallions.</description>
<price>8</price>
<url>thainoodles.xml</url>
</menu_item>
<menu_item id="3">
<item>Grilled Pacific Salmon</item>
<description>served with new potatoes, diced beets, Italian parlsey, and lemon zest.</description>
<price>16</price>
<url>salmon.xml</url>
</menu_item>
</specials>
summersalad.xml
<?xml version="1.0" encoding="UTF-8"?>
<item>
<item_name>Summer salad</item_name>
<ingredients>
<ingredient>
<name>butter lettuce</name>
</ingredient>
<ingredient>
<name>Macintosh 苹果</name>
</ingredient>
<ingredient>
<name>Blood oranges</name>
</ingredient>
<ingredient>
<name>Gorgonzola cheese</name>
</ingredient>
</ingredients>
</item>
thainoodles.xml
<?xml version="1.0" encoding="UTF-8"?>
<item>
<item_name>Thain Noodles</item_name>
<ingredients>
<ingredient>
<name>Thain Noodle</name>
</ingredient>
<ingredient>
<name>Macintosh apples</name>
</ingredient>
</ingredients>
</item>
salmon.xml
<?xml version="1.0" encoding="UTF-8"?>
<item>
<item_name>Salmon</item_name>
<ingredients>
<ingredient>
<name>Salmon</name>
</ingredient>
<ingredient>
<name>parsley</name>
</ingredient>
<ingredient>
<name>basil</name>
</ingredient>
</ingredients>
</item>
test.html
1<head>
2 <meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
3 <title>Spry Example</title>
4
5 <!--Link the Spry libraries-->
6 <script type="text/javascript" src="includes/xpath.js"></script>
7 <script type="text/javascript" src="includes/SpryData.js"></script>
8
9 <!--Create a data set object-->
10
<script type="text/javascript">
11
var dsSpecials = new Spry.Data.XMLDataSet("data.xml", "specials/menu_item");
12
var dsIngredients = new Spry.Data.XMLDataSet('{dsSpecials::url}', "item/ingredients/ingredient");
13
</script>
14</head>
15
16<body>
17
18 <!--Create the Spry dynamic region-->
19 <div id="Specials_DIV" spry:region="dsSpecials">
20 <!--Display the data in a table-->
21 <table id="Specials_Table">
22 <tr>
23 <th>名称</th>
24 <th>Description</th>
25 <th>价格</th>
26 </tr>
27 <!--<tr spry:repeat="dsSpecials">-->
28 <tr spry:repeat="dsSpecials" onclick="dsSpecials.setCurrentRow('{ds_RowID}')">
29 <td>{item}</td>
30 <td>{description}</td>
31 <td>{price}</td>
32 </tr>
33 </table>
34 </div>
35<hr>
36 <!--Create the detail dynamic region-->
37 <div id="Specials_Detail_DIV" spry:region="dsIngredients">
38 <table id="Specials_Detail_Table">
39 <tr>
40 <th>Ingredients</th>
41 </tr>
42 <tr spry:repeat="dsIngredients">
43 <td>{name}</td>
44 </tr>
45 </table>
46 </div>
47</body>
<head>2
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />3
<title>Spry Example</title>4
5
<!--Link the Spry libraries-->6
<script type="text/javascript" src="includes/xpath.js"></script>7
<script type="text/javascript" src="includes/SpryData.js"></script>8
9
<!--Create a data set object-->10
<script type="text/javascript">11
var dsSpecials = new Spry.Data.XMLDataSet("data.xml", "specials/menu_item");12
var dsIngredients = new Spry.Data.XMLDataSet('{dsSpecials::url}', "item/ingredients/ingredient");13
</script>14
</head>15
16
<body>17
18
<!--Create the Spry dynamic region-->19
<div id="Specials_DIV" spry:region="dsSpecials">20
<!--Display the data in a table-->21
<table id="Specials_Table">22
<tr>23
<th>名称</th>24
<th>Description</th>25
<th>价格</th>26
</tr>27
<!--<tr spry:repeat="dsSpecials">-->28
<tr spry:repeat="dsSpecials" onclick="dsSpecials.setCurrentRow('{ds_RowID}')">29
<td>{item}</td>30
<td>{description}</td>31
<td>{price}</td>32
</tr>33
</table>34
</div>35
<hr>36
<!--Create the detail dynamic region-->37
<div id="Specials_Detail_DIV" spry:region="dsIngredients">38
<table id="Specials_Detail_Table">39
<tr>40
<th>Ingredients</th>41
</tr>42
<tr spry:repeat="dsIngredients">43
<td>{name}</td>44
</tr>45
</table>46
</div>47
</body>data.xml
<?xml version="1.0" encoding="UTF-8"?><specials> <menu_item id="1"> <item>夏日沙拉</item> <description>organic butter lettuce with apples, blood oranges, gorgonzola, and raspberry vinaigrette.</description> <price>7</price> <url>summersalad.xml?id=1</url> </menu_item> <menu_item id="2"> <item>Thai Noodle Salad</item> <description>lightly sauteed in sesame oil with baby bok choi, portobello mushrooms, and scallions.</description> <price>8</price> <url>thainoodles.xml</url> </menu_item> <menu_item id="3"> <item>Grilled Pacific Salmon</item> <description>served with new potatoes, diced beets, Italian parlsey, and lemon zest.</description> <price>16</price> <url>salmon.xml</url> </menu_item></specials>summersalad.xml
<?xml version="1.0" encoding="UTF-8"?><item> <item_name>Summer salad</item_name> <ingredients> <ingredient> <name>butter lettuce</name> </ingredient> <ingredient> <name>Macintosh 苹果</name> </ingredient> <ingredient> <name>Blood oranges</name> </ingredient> <ingredient> <name>Gorgonzola cheese</name> </ingredient> </ingredients></item>thainoodles.xml
<?xml version="1.0" encoding="UTF-8"?><item> <item_name>Thain Noodles</item_name> <ingredients> <ingredient> <name>Thain Noodle</name> </ingredient> <ingredient> <name>Macintosh apples</name> </ingredient> </ingredients></item>salmon.xml
<?xml version="1.0" encoding="UTF-8"?><item> <item_name>Salmon</item_name> <ingredients> <ingredient> <name>Salmon</name> </ingredient> <ingredient> <name>parsley</name> </ingredient> <ingredient> <name>basil</name> </ingredient> </ingredients></item>
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