texttagaction.java
package com.h3.common.action;
import com.opensymphony.xwork2.actionsupport;
public class texttagaction extends actionsupport{
public string execute() throws exception {
return success;
}
}
texttagaction.properies
name.msg = "this is a message from properties file"
name.msg.param = "this is a message from properties file - param : {0}"
text.jsp
<%@ taglib prefix="s" uri="/struts-tags" %> <html> <head><title>www.h3.com</title> </head> <body> <h1>struts2 text标签示例</h1> <h2>1.<s:text name="name.msg" /></h2> output : <s:text name="name.msg" /> <h2>2. <s:text name="name.msg.unknow">message doesn't exists</s:text></h2> output : <s:text name="name.msg.unknow">message doesn't exists</s:text> <h2>3. <s:text name="name.msg.unknow" /></h2> output : <s:text name="name.msg.unknow" /> <h2>4. <s:text name="name.msg.param" ><s:param >h3</s:param> </s:text></h2> output : <s:text name="name.msg.param" > <s:param >h3</s:param> </s:text> </body> </html>
它是如何工作的？
1. <s:text name=”name.msg” />
从资源包获取并显示消息(texttagaction.properies)关联当前动作类 (texttagaction.action).
"this is a message from properties file"
2. <s:text name=”name.msg.unknow”>message doesn’t exists</s:text>
message doesn't exists
3. <s:text name=”name.msg.unknow” />
name.msg.unknow
4. <s:text name=”name.msg.param” ><s:param >h3</s:param></s:text>
"this is a message from properties file - param : h3"
<?xml version="1.0" encoding="utf-8" ?> <!doctype struts public "-//apache software foundation//dtd struts configuration 2.0//en" "http://struts.apache.org/dtds/struts-2.0.dtd"> <struts> <constant name="struts.devmode" value="true" /> <package name="default" namespace="/" extends="struts-default"> <action name="texttagaction" class="com.h3.common.action.texttagaction" > <result name="success">/pages/text.jsp</result> </action> </package> </struts>
http://localhost:8080/struts2texttag/texttagaction.action
在浏览器中打开上面的网址，显示结果如下所示：
