OGNL逻辑标签，UI标签

public class IndexAction extends BasicAction{
        
        private static final long serialVersionUID = 1L;

        private String name;
        private List<String> messages;
        private List<ProductType> typeList; 
        
        public String execute() {
            name = "tom";
            
            messages = new ArrayList<String>();
            messages.add("m1");
            messages.add("m2");
            messages.add("m3");
            messages.add("m4");
            
            typeList = new ProductService().findAllType();
            
            return SUCCESS;
        }
    }    

<s:if test="name == ‘Tom‘">
            <h1>Hello,TOM</h1>
        </s:if>
        <s:elseif test="name == ‘tom‘">
            <h1>xixi,Tom</h1>
        </s:elseif>
        <s:else>
            <h1>other</h1>
        </s:else>
        
        <ul>
            <s:iterator value="messages" var="ms" status="st">
                <li>${ms} : ${st.even}</li>
            </s:iterator>
        </ul>

<s:form action="/product/new.action" theme="simple">
            <s:textfield label="账号" name="product.name" id="pname"/>
            <s:password label="密码" name="product.pwd"/>
            <s:radio label="性别" list="#{‘m‘:‘男‘,‘w‘:‘女‘ }" name="xxx"/>
            <s:checkbox label="体育" name="fav" value="ty"/>
            <s:checkbox label="音乐" name="fav" value="ty"/>
            <s:textarea></s:textarea>
            <s:select list="typeList" listKey="id" listValue="typename"></s:select>
            <s:submit></s:submit>
            <s:reset></s:reset>
        </s:form>