freemarker寫select元件

1、巨集定義

<#macro select id datas value="" key="" text="">
     <select id="${id}" name="${id}">
          <option>---請選擇---</option>
          <#list datas as data>
              <#if key!="">
                  <#if value == data[key]?string>
                 	<option value="${data[key]}" selected>${data[text]}</option>
                  <#else>
                   <option value="${data[key]}">${data[text]}</option>
                 </#if>
              <#else>
                  <#if value == data>
                 	<option value="${data}" selected>${data}</option>
                 <#else>
                 <option value="${data}">${data}</option>
              </#if>
             </#if> 
          </#list>
     </select>
</#macro>
 

/**
 * @Title:User.java
 * @Package:com.you.freemarker.model
 * @Description:
 * @author:Youhaidong(遊海東)
 * @date:2014-6-26 下午10:28:01
 * @version V1.0
 */
package com.you.freemarker.model;

/**
 * 類功能說明
 * 類修改者 修改日期
 * 修改說明
 * <p>Title:User.java</p>
 * <p>Description:遊海東個人開發</p>
 * <p>Copyright:Copyright(c)2013</p>
 * @author:遊海東
 * @date:2014-6-26 下午10:28:01
 * @version V1.0
 */
public class User 
{
    /**
     * 使用者號
     */
	private int userNo;
	
	/**
	 * 使用者姓名
	 */
	private String userName;
	
	/**
	 * 使用者年齡
	 */
	private int userAge;

	/**
	 * @return the userNo
	 */
	public int getUserNo() {
		return userNo;
	}

	/**
	 * @param userNo the userNo to set
	 */
	public void setUserNo(int userNo) {
		this.userNo = userNo;
	}

	/**
	 * @return the userName
	 */
	public String getUserName() {
		return userName;
	}

	/**
	 * @param userName the userName to set
	 */
	public void setUserName(String userName) {
		this.userName = userName;
	}

	/**
	 * @return the userAge
	 */
	public int getUserAge() {
		return userAge;
	}

	/**
	 * @param userAge the userAge to set
	 */
	public void setUserAge(int userAge) {
		this.userAge = userAge;
	}

	/**
	 * <p>Title:</p>
	 * <p>Description:</p>
	 * @param userNo
	 * @param userName
	 * @param userAge
	 */
	public User(int userNo, String userName, int userAge) {
		super();
		this.userNo = userNo;
		this.userName = userName;
		this.userAge = userAge;
	}

	/**
	 * <p>Title:</p>
	 * <p>Description:</p>
	 */
	public User() {
		super();
	}
	
}
 

 <@items.select id="user" datas=users key="userNo" text="userName"/>

/**
	 * 
	 * @Title:testSelect
	 * @Description:
	 * @param:
	 * @return: void
	 * @throws
	 */
	@Test
	public void testSelect()
	{
		List<User> users = Arrays.asList(new User(1,"張三丰",25),
										 new User(2,"李思思",22),
										 new User(3,"趙武",23),
										 new User(4,"劉雪",20),
										 new User(5,"朱顧",21),
										 new User(6,"趙武",23),
										 new User(7,"吳語",24),
										 new User(8,"血玉",21));
		root.put("users", users);
		studentPrint("address.ftl");
		studentFile("address.ftl","address.html");
	}
 

（1）控制檯列印

<select id="user" name="user">
          <option>---請選擇---</option>
                   <option value="1">張三丰</option>
                   <option value="2">李思思</option>
                   <option value="3">趙武</option>
                   <option value="4">劉雪</option>
                   <option value="5">朱顧</option>
                   <option value="6">趙武</option>
                   <option value="7">吳語</option>
                   <option value="8">血玉</option>
     </select>