struts中使用單選按鈕有三種方式:
1.使用<html:option>標簽
<html:select property="city">
<html:option value="010">北京市</html:option>
<html:option value="020">廣州市</html:option>
<html:option value="021">上海市</html:option>
</html:select>
2.使用<html:optionsCollection>標簽
1)在ActionForm中加入字段
private List cityList=new ArrayList();
2)加入必須的getter方法
public List getCityList() {
return cityList;
}
3)在reset方法內給cityList填充內容
cityList.add(new LabelValueBean("北京市","010"));
cityList.add(new LabelValueBean("廣州市", "020"));
cityList.add(new LabelValueBean("上海市", "021"));
4)JSP標簽中使用
<html:select property="city2">
<html:optionsCollection property="cityList" label="label" value="value"/>
</html:select>
3.使用<html:options>標簽
<%List cityList=new ArrayList();
cityList.add(new LabelValueBean("北京市","010"));
cityList.add(new LabelValueBean("廣州市", "020"));
cityList.add(new LabelValueBean("上海市", "021"));
request.setAttribute("list",cityList); //必須是request對象
%>
<html:select property="city3">
<html:options collection="list" labelProperty="label" property="value"/>
</html:select>