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Hongqing Liufd5ee812014-05-10 16:32:51 +08001<html><body><pre>
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18&lt;%@ taglib prefix="my" uri="http://tomcat.apache.org/jsp2-example-taglib"%>
19
20&lt;html>
21 &lt;head>
22 &lt;title>JSP 2.0 Examples - Shuffle Example&lt;/title>
23 &lt;/head>
24 &lt;body>
25 &lt;h1>JSP 2.0 Examples - Shuffle Example&lt;/h1>
26 &lt;hr>
27 &lt;p>Try reloading the page a few times. Both the rows and the columns
28 are shuffled and appear different each time.&lt;/p>
29 &lt;p>Here's how the code works. The SimpleTag handler called
30 &amp;lt;my:shuffle&amp;gt; accepts three attributes. Each attribute is a
31 JSP Fragment, meaning it is a fragment of JSP code that can be
32 dynamically executed by the shuffle tag handler on demand. The
33 shuffle tag handler executes the three fragments in a random order.
34 To shuffle both the rows and the columns, the shuffle tag is used
35 with itself as a parameter.&lt;/p>
36 &lt;hr>
37 &lt;blockquote>
38 &lt;font color="#ffffff">
39 &lt;table>
40 &lt;my:shuffle>
41 &lt;jsp:attribute name="fragment1">
42 &lt;tr>
43 &lt;my:shuffle>
44 &lt;jsp:attribute name="fragment1">
45 &lt;my:tile color="#ff0000" label="A"/>
46 &lt;/jsp:attribute>
47 &lt;jsp:attribute name="fragment2">
48 &lt;my:tile color="#00ff00" label="B"/>
49 &lt;/jsp:attribute>
50 &lt;jsp:attribute name="fragment3">
51 &lt;my:tile color="#0000ff" label="C"/>
52 &lt;/jsp:attribute>
53 &lt;/my:shuffle>
54 &lt;/tr>
55 &lt;/jsp:attribute>
56 &lt;jsp:attribute name="fragment2">
57 &lt;tr>
58 &lt;my:shuffle>
59 &lt;jsp:attribute name="fragment1">
60 &lt;my:tile color="#ff0000" label="1"/>
61 &lt;/jsp:attribute>
62 &lt;jsp:attribute name="fragment2">
63 &lt;my:tile color="#00ff00" label="2"/>
64 &lt;/jsp:attribute>
65 &lt;jsp:attribute name="fragment3">
66 &lt;my:tile color="#0000ff" label="3"/>
67 &lt;/jsp:attribute>
68 &lt;/my:shuffle>
69 &lt;/tr>
70 &lt;/jsp:attribute>
71 &lt;jsp:attribute name="fragment3">
72 &lt;tr>
73 &lt;my:shuffle>
74 &lt;jsp:attribute name="fragment1">
75 &lt;my:tile color="#ff0000" label="!"/>
76 &lt;/jsp:attribute>
77 &lt;jsp:attribute name="fragment2">
78 &lt;my:tile color="#00ff00" label="@"/>
79 &lt;/jsp:attribute>
80 &lt;jsp:attribute name="fragment3">
81 &lt;my:tile color="#0000ff" label="#"/>
82 &lt;/jsp:attribute>
83 &lt;/my:shuffle>
84 &lt;/tr>
85 &lt;/jsp:attribute>
86 &lt;/my:shuffle>
87 &lt;/table>
88 &lt;/font>
89 &lt;/blockquote>
90 &lt;/body>
91&lt;/html>
92</pre></body></html>