<param name="fruit">Banana</param> {Case 1}
<param name="fruit" value="Banana"/> {Case 2}
<s:bean name="com.yiibai.common.Person" var="personBean"> <s:param name="nickName">yiibai</s:param> </s:bean>
<s:bean name="com.yiibai.common.Person" var="personBean"> <s:param name="nickName" value="yiibai"></s:param> </s:bean>
<s:bean name="com.yiibai.common.Fruit" var="fruitBean"> <s:param name="fruitName">Banana</s:param> </s:bean> <s:bean name="com.yiibai.common.Person" var="personBean"> <s:param name="favorFruit" value="#fruitBean"></s:param> </s:bean>
<s:bean name="com.yiibai.common.Person" var="personBean"> <s:param name="age" value="99"></s:param> </s:bean> // or <s:bean name="com.yiibai.common.Person" var="personBean"> <s:param name="age">99</s:param> </s:bean>
ParamTagAction.java
package com.yiibai.common.action;
import com.opensymphony.xwork2.ActionSupport;
public class ParamTagAction extends ActionSupport{
public String execute() {
return SUCCESS;
}
}
Person.java
package com.yiibai.common;
public class Person{
private String nickName;
private int age;
private Fruit favorFruit;
public String getNickName() {
return nickName;
}
public void setNickName(String nickName) {
this.nickName = nickName;
}
public int getAge() {
return age;
}
public void setAge(int age) {
this.age = age;
}
public Fruit getFavorFruit() {
return favorFruit;
}
public void setFavorFruit(Fruit favorFruit) {
this.favorFruit = favorFruit;
}
public String getFruitName(){
return this.favorFruit.getFruitName();
}
}
Fruit.java
package com.yiibai.common;
public class Fruit{
private String fruitName;
public String getFruitName() {
return fruitName;
}
public void setFruitName(String fruitName) {
this.fruitName = fruitName;
}
}
param.jsp
<%@ taglib prefix="s" uri="/struts-tags" %> <html> <head> </head> <body> <h1>Struts 2 param tag example</h1> <s:bean name="com.yiibai.common.Fruit" var="fruitBean"> <s:param name="fruitName">Banana</s:param> </s:bean> <s:bean name="com.yiibai.common.Person" var="personBean"> <s:param name="nickName">ah pig ah dog</s:param> <s:param name="age">99</s:param> <s:param name="favorFruit" value="#fruitBean"></s:param> </s:bean> <h2>PersonBean</h2> <ol> <li>NickName property : <s:property value="#personBean.nickName" /></li> <li>Age property : <s:property value="#personBean.age" /></li> <li>Fruit property : <s:property value="#personBean.fruitName" /></li> </ol> </body> </html>
<?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="paramTagAction" class="com.yiibai.common.action.ParamTagAction" > <result name="success">pages/param.jsp</result> </action> </package> </struts>
http://localhost:8080/struts2paramtag/paramTagAction.action
在瀏覽中打上面的網(wǎng)址，訪問后顯示結(jié)果如下：
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