Struts 中 Multibox 的用法

在 ActionForm 中定义一个数组 String[] selectedOptions 用于存放复选框被选中的值，

数组 LabelValueBean[] possibleOptions 用于显示所有的复选框的值。

import org.apache.struts.util.LabelValueBean;
 .
 .
 .
 public class MyActionForm extends ActionForm
 {
   private LabelValueBean[] possibleOptions;
   private String[] selectedOptions;
 
   public MyActionForm()
   {
 
     // Initialise the LabelValueBeans in the possibleOptions array.
     LabelValueBean[] lvBeans = new LabelValueBean[4];
 
     lvBeans[0] = new LabelValueBean("Alpha", "A");
     lvBeans[1] = new LabelValueBean("Beta", "B");
     lvBeans[2] = new LabelValueBean("Charlie", "C");
     lvBeans[3] = new LabelValueBean("Delta", "D");
 
     this.possibleOptions = lvBeans;
   }
 
   public LabelValueBean[] getPossibleOptions()
   {
     return possibleOptions;
   }
 
   public String[] getSelectedOptions()
   {
     return selectedOptions;
   }
 
   public void setSelectedOptions(String[] selectedOptions)
   {
     this.selectedOptions = selectedOptions;
   }
 }

在 JSP 中使用以下代码：

<logic:iterate name="myActionForm" id="item" property="possibleOptions">
   <html:multibox property="selectedOptions">
     <bean:write name="item" property="value" />
   </html:multibox>
     <bean:write name="item" property="label" /><br />
 </logic:iterate>

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