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struts2标签小结

1 #号，能访问actioncontext的上下文资源，例子如下：
public class OgnlAction extends ActionSupport implements ServletContextAware,
ServletRequestAware, SessionAware {

private static final long serialVersionUID = -6175904602786022346L;

private HttpServletRequest request;
private ServletContext application;
private Map session;

@SuppressWarnings("all")
private List magazineList = new ArrayList() {
{
add(new Magazine("时代周刊", 10));
add(new Magazine("足球之夜", 19));
add(new Magazine("时尚", 20));
add(new Magazine("时代影视", 50));
}
};

public void setServletRequest(HttpServletRequest request) {
this.request = request;
}

public void setServletContext(ServletContext application) {
this.application = application;
}

@SuppressWarnings("all")
public void setSession(Map session) {
this.session = session;
}

public String execute() {

request.setAttribute("account", "account from request");
application.setAttribute("account", "account from response");
session.put("account", "account from session");

return Action.SUCCESS;
}

public List getMagazineList() {
return magazineList;
}

public void setMagazineList(List bookList) {
this.magazineList = bookList;
}

JSP页面：
所有的ID：

第一个ID：

request 中取属性：

session 中取属性：

application 中取属性：

attr 中取属性：

价格大于18元的杂志共有本，分别是：

- ￥.

名称包含“时代”二字的杂志共有本，分别是：

- ￥.

“足球之夜”的价格为￥。

其中注意OGNL的灵活用法

2 下面两个注意区别：

其中第一个会输出字符串#request.account"，第二个会把request.account的结果输出.

3 autocomplete控件：

请选择国家：

me="country" theme="ajax" href="%{dataUrl}"
loadOnTextChange="true" loadMinimumCount="1" autoComplete="false"
showDownArrow="true" indicator="indicator" />

其中href为获取数据的URL，indicator可以为一个属性或文字，获取数据的JSP如下：
out.clear();

request.setCharacterEncoding("UTF-8");

response.setHeader("Pragma", "no-cache");
response.setHeader("Cache-Control", "no-cache");
response.setDateHeader("Expires", 0);

String[] countries = { "。。。。。“}
String country = request.getParameter("country");

if (country == null)
country = "";

StringBuffer buffer = new StringBuffer();

for (int i = 0; i < countries.length; i++) {
if (countries[i].toLowerCase()
.startsWith(country.toLowerCase())) {
if (buffer.length() != 0)
buffer.append(",");
buffer.append("['" + countries[i] + "']");
}
}

Thread.sleep(500);

out.print("[" + buffer + "]");

4 连动框doubleselect:

<%
List provinceList = new ArrayList();
provinceList.add("北京");
provinceList.add("上海");
provinceList.add("天津");
provinceList.add("重庆");
provinceList.add("河北");
provinceList.add("河南");
provinceList.add("山东");
provinceList.add("山西");
provinceList.add("江苏");
provinceList.add("浙江");

request.setAttribute("provinceList", provinceList);

Map> cityMap = new HashMap>();

{
// 北京市
List cityList = new ArrayList();

cityList.add("东城区");
cityList.add("西城区");
cityList.add("海淀区");
cityList.add("朝阳区");

cityMap.put("北京", cityList);
}
{
// 山东省
List cityList = new ArrayList();

cityList.add("青岛");
cityList.add("济南");
cityList.add("潍坊");
cityList.add("烟台");
cityList.add("淄博");

cityMap.put("山东", cityList);
}

request.setAttribute("cityMap", cityMap);
%>

doubleName="city" doubleList="#request.cityMap.get(top)" label="请选择省份、市"/>

5 optiontransferselect标签
<%
List provinceSelected = new ArrayList();

provinceSelected.add("北京");
provinceSelected.add("上海");
provinceSelected.add("天津");
provinceSelected.add("重庆");
provinceSelected.add("河北");
provinceSelected.add("河南");
provinceSelected.add("山东");
provinceSelected.add("山西");
provinceSelected.add("江苏");
provinceSelected.add("浙江");

request.setAttribute("provinceSelected", provinceSelected);

List provinceUnselected = new ArrayList();

provinceUnselected.add("湖南");
provinceUnselected.add("湖北");
provinceUnselected.add("云南");
provinceUnselected.add("广东");
provinceUnse

lected.add("广西");

request.setAttribute("provinceUnselected", provinceUnselected);
%>

doubleList="#request.provinceSelected"
list="#request.provinceUnselected" doubleName="city" leftUpLabel="向上"
leftDownLabel="向下" rightDownLabel="向下" rightUpLabel="向上"
leftTitle="已经选中的省份" headerKey="" headerValue="---请选择省份---"
rightTitle="剩余的省份" />

6 TAB标签

cssStyle="padding: 10px; ">
第一个 TabItem

第一个 TabItem

cssStyle="padding: 10px; ">
第二个 TabItem

第二个 TabItem

cssStyle="padding: 10px; ">
第一个 TabItem

第一个 TabItem

cssStyle="padding: 10px; ">
第二个 TabItem

第二个 TabItem