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2016-02-24 15:26 369 查看
1.index.jsp

<body>
访问属性
	<a href="tags.action?username=u&password=p">tags</a>
</body>


2.struts.xml

<struts>
 <constant name="struts.enable.DynamicMethodInvocation" value="true" />
 <constant name="struts.devMode" value="true" />
 <constant name="struts.ui.theme" value="simple"/>
 <package name="tags" extends="struts-default">
 	<action name="tags" class="com.wxh.action.TagsAction">
 		<result>/tags.jsp</result>
 	</action> 
 </package>
</struts>


3.tags.jsp

<body>
<ol>
	<li>property:<s:property value="username"/></li>
	<li>property 取值为字符串:<s:property value="'username'"/></li>
	<li>property 设定默认值:<s:property value="admin" default="管理员"/></li>
	<li>property 设定为HTML:<s:property value="'<hr/>'" escape="true"/></li>
	<hr/>
	<li>set 设定adminName值（默认为request和ActionContext）：<s:set var="adminName" value="username"/></li>
	<li>set 从request取值：<s:property value="#request.adminName"/></li>
	<li>set 从ActionContext取值：<s:property value="#adminName"/></li>
	<li>set 设定范围：<s:set name="adminPassword" value="password" scope="page"/></li>
	<li>从相应的范围取值：<%=pageContext.getAttribute("adminPassword")%></li> 
	<li>set 设定var,范围为ActionContext:<s:set name="adminPassword" value="password" var="a"/></li>
	<li>使用#取值:<s:property value="#a"/></li>
	<hr/>
	<li>bean 定义bean，并使用param来设定新的属性值；
		<s:bean name="com.wxh.action.Dog">
			<s:param name="name" value="'smalldog'"></s:param>
		</s:bean>
		
	<li>bean查看debug情况：
		<s:bean name="com.wxh.action.Dog" var="myDog"></s:bean>
	</li>
	<hr/>
	<li>include include1.html 包含静态英文文件
	<s:include value="/include1.html"></s:include>
	</li>
	<li>include include2.html 包含静态中文文件
	<s:include value="/include2.html"></s:include>
	</li>
	<li>include include1.html 包含静态英文文件，说明%用法
	<s:set var="incPage" value="'/include1.html'"/>
	<s:include value="%{#incPage}"></s:include>
	</li>
	<hr/>
	
	<li>
	<s:fielderror fieldName="fielderror.test" theme="simple"></s:fielderror>
	</li>	
	<hr/>
	
	<li>if elseif else:
	age=<s:property value="#parameters.age[0]"/><br/>
	<s:if test="#parameter.age[0]<0">wrong age!</s:if>
	<s:elseif test="#parameter.age[0]<20">too young!</s:elseif>
	<s:else>yeah!</s:else><br/>
	
	 <s:if test="#parameters.aaa==null">null</s:if>
	</li>
	<hr/>
	
	<li>遍历集合：<br/>
	<s:iterator value="{1,2,3}">
		<s:property/>
	</s:iterator>
	</li>
	
	<li>自定义变量：<br/>
	<s:iterator value="{'aaa','bbb','ccc'}" var="x">
		<s:property value="#x.toUpperCase()"/>
	</s:iterator>
	</li>
	
	<li>使用status:<br/>
	<s:iterator value="{'aaa','bbb','ccc'}" status="status">
		<s:property/>|
		遍历过得元素总数：<s:property value="#status.count"/>|
		遍历过得元素索引：<s:property value="#status.index"/>|
		当前是偶数?：<s:property value="#status.even"/>|
		当前是奇数?：<s:property value="#status.odd"/>|
		是第一个元素吗？：<s:property value="#status.first"/>|
		是最后一个元素吗？：<s:property value="#status.last"/>
		<br/>
	</s:iterator>
	</li>
	
	<li>
	<s:iterator value="#{1:'a',2:'b',3:'c'}" >
		<s:property value="key"/>|<s:property value="value"/><br/>
	</s:iterator>
	</li> 
	
	<li>
	<s:iterator value="#{1:'a',2:'b',3:'c'}"  var="x">
		<s:property value="#x.key"/>|<s:property value="#x.value"/><br/>
	</s:iterator>
	</li> 
	<s:debug></s:debug>
</ol>

</body>


4.TagsAction.java

package com.wxh.action;

import com.opensymphony.xwork2.ActionSupport;

public class TagsAction extends ActionSupport{
	private String password;
	private String username;
	public TagsAction(){
		
	}
	public String execute(){
		this.addFieldError("fielderror.test","wrong!");
		return SUCCESS;
	}
	
	public String getPassword() {
		return password;
	}
	public void setPassword(String password) {
		this.password = password;
	}
	public String getUsername() {
		return username;
	}
	public void setUsername(String username) {
		this.username = username;
	}
}


5.Dog.java
package com.wxh.action;

public class Dog {
	public Dog(){
		
	}
	public Dog(String anme){
		super();
		this.name=name;
	}
	private String name;

	public String getName() {
		return name;
	}

	public void setName(String name) {
		this.name = name;
	}
	public String toString(){
		return "dog:"+name;
	}

}


6.S.java
package com.wxh.action;

public class S {
	public static String STR="STATIC STRING";
	
	public static String s(){
		return "static method";
	}
}


7.User.java

package com.wxh.action;

public class User {	
	private int age;
	
	public User(){
		System.out.println("user.constructor!");
	}
	public User(int age){
		super();
		this.age=age;
	}
	
	public int getAge() {
		return age;
	}
	public void setAge(int age) {
		this.age = age;
	}
	public String toString(){
		return "user"+age;
	}

}


8.include1.html

<body>
include1.html
</body>


9.include2.html

<body>
中文
</body>
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