LookupDispatchAction

選擇dispatch方法的一個方便的方式是將它們連接到按鈕，這對於本地化應用來說是個問題，因爲按鈕的標籤可能根據用戶的場所來改變，如英文版本顯示Delete按紐而對中文用戶要顯示“刪除”

LookupDispatchAction(org.apache.struts.actions.LookupDispatchAction)通過將標籤映射到資源文件的消息關鍵字來解決這個問題，但消息關鍵字不是相應Java方法的名稱，開發人員就提供一個hash表來映射消息關鍵字和dispatch方法名（通過getKeyMethodMap方法實現）

protected Map getKeyMethodMap(ActionMapping mapping, ActionForm form,
			HttpServletRequest Request) {
		Map map = new HashMap();
		map.put("button.add", "cerate");//把button.add映射到create方法
		map.put("button.view", "read");
		map.put("button.update", "update");
		map.put("button.delete", "delete");
		return map;
	}
public ActionForward create(ActionMapping mapping,
	ActionForm form,
			HttpServletRequest Request, HttpServletResponse Response)
			throws IOException, ServletException;

	public ActionForward read(ActionMapping mapping, 
	ActionForm form,
			HttpServletRequest Request, HttpServletResponse Response)
			throws IOException, ServletException;

	public ActionForward update(ActionMapping mapping, 
	ActionForm form,
			HttpServletRequest Request, HttpServletResponse Response)
			throws IOException, ServletException;

	public ActionForward delete(ActionMapping mapping, 
	ActionForm form,
			HttpServletRequest Request, HttpServletResponse Response)
			throws IOException, ServletException;

在JSP中按鈕要這樣來創建:

<html:form action="/dataRecord">
			<html:submit property="method">
				<bean:message key="button.add">
			</html:submit>
			<html:submit property="method">
				<bean:message key="button.view">
			</html:submit>
			<html:submit property="method">
				<bean:message key="button.update">
			</html:submit>
			<html:submit property="method">
				<bean:message key="button.delete">
			</html:submit>
		</html:form>

對應的資源文件

中文ApplicationResources_zh_CN.properties

button.add=增加

button.view=查看

button.update=更新

button.delete=刪除

英文ApplicationResources_zh.properties

button.add=Add

button.view=View

button.update=Update

button.delete=Delete

原文：http://www.rjpx.net/java-peixun/891.html