两种方法创建自己定义标签：
一.通过AbstractComponent父类渲染，此种方法直接在java类中编写页面脚本。然后输出。
1.编写java类com/ailk/ech/ecop/view/test/jwc/LiuzfTest2.java
package com.ailk.ech.ecop.view.test.jwc;
import org.apache.tapestry.AbstractComponent;
import org.apache.tapestry.BaseComponent;
import org.apache.tapestry.IMarkupWriter;
import org.apache.tapestry.IRequestCycle;
public abstract class LiuzfTest2 extends AbstractComponent{
public abstract String getLink();
public abstract String getValue();
@Override
protected void renderComponent(IMarkupWriter writer, IRequestCycle cycle) {
// TODO Auto-generated method stub
writer.begin("a");
writer.attribute("href", getLink());
writer.print(getValue());
renderInformalParameters(writer, cycle);
}
}
2.编写jwc配置文件webecop estjwcLiuzfTest2.jwc。定义组件參数和映射的java类
<?xml version="1.0" encoding="UTF-8"?> <!DOCTYPE component-specification PUBLIC "-//Apache Software Foundation//Tapestry Specification 3.0//EN" "http://jakarta.apache.org/tapestry/dtd/Tapestry_3_0.dtd"> <component-specification allow-body="yes" allow-informal-parameters="yes" class="com.ailk.ech.ecop.view.test.jwc.LiuzfTest2"> <parameter name="value" direction="in" type="java.lang.String"/> <parameter name="link" direction="in" type="java.lang.String"/> </component-specification>
3.在application中引入组件
<component-type type="LiuzfTest2" specification-path="/ecop/test/jwc/LiuzfTest2.jwc"/>
4.然后就能够使用了，使用效果。输出一个<a href="http://www.baidu.com">test2</a>
<span jwcid="@LiuzfTest2" link="http://www.baidu.com" value="test2" />
二.通过BaseComponent父类渲染，此种方法须要定义html规范，通过html规范输出html代码，无需在java类中输出html
1.编写java类LiuzfTest3.java
package com.ailk.ech.ecop.view.test.jwc;
import org.apache.tapestry.AbstractComponent;
import org.apache.tapestry.BaseComponent;
import org.apache.tapestry.IMarkupWriter;
import org.apache.tapestry.IRequestCycle;
public abstract class LiuzfTest3 extends BaseComponent{
public abstract String getLink();
public abstract String getValue();
}2.编写jwc配置文件，定义组件的參数。映射类
<?3.编写html规范，html文件与jwc配置文件放在同一个文件夹下xml version="1.0" encoding="UTF-8"?> <!DOCTYPE component-specification PUBLIC "-//Apache Software Foundation//Tapestry Specification 3.0//EN" "http://jakarta.apache.org/tapestry/dtd/Tapestry_3_0.dtd"> <component-specification allow-body="yes" allow-informal-parameters="yes" class="com.ailk.ech.ecop.view.test.jwc.LiuzfTest3"> <parameter name="value" direction="in" type="java.lang.String"/> <parameter name="link" direction="in" type="java.lang.String"/> </component-specification>
<html> <body jwcid="$content$"> <hr> <a jwcid="@Any" href="ognl:link"><span jwcid="@Insert" value="ognl:value"></span></a> </body> </html>4.在application中引入这个组件
<component-type type="LiuzfTest3" specification-path="/ecop/test/jwc/LiuzfTest3.jwc"/>5然后就能够使用了，效果也是输出一个链接
<td><span jwcid="@LiuzfTest3" link="http://www.baidu.com" value="test3" /></td>