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11.9. FAQ

11.9.1. Struts 怎樣判斷用戶來自電腦還是移動設備

			
package cn.netkiller.action;

import com.opensymphony.xwork2.ActionContext;
import com.opensymphony.xwork2.ActionSupport;
import javax.servlet.http.HttpServletRequest;

public class Index extends ActionSupport {

	private static final long serialVersionUID = 7782483098148890753L;

	public String execute() {
		HttpServletRequest request = (HttpServletRequest) ActionContext.getContext().get(org.apache.struts2.StrutsStatics.HTTP_REQUEST);
		String userAgent = request.getHeader("User-Agent").toLowerCase();
		System.out.println(this.getClass().getName() + ": " + userAgent);
		String[] mobileAgents = { "iphone", "android", "phone", "mobile", "wap", "netfront", "java", "opera mobi", "opera mini", "ucweb", "windows ce", "symbian", "series", "webos", "sony", "blackberry", "dopod", "nokia", "samsung", "palmsource", "xda", "pieplus", "meizu", "midp", "cldc", "motorola", "foma", "docomo", "up.browser", "up.link", "blazer", "helio", "hosin", "huawei", "novarra", "coolpad", "webos", "techfaith", "palmsource", "alcatel", "amoi", "ktouch", "nexian", "ericsson", "philips", "sagem", "wellcom", "bunjalloo", "maui", "smartphone", "iemobile", "spice", "bird", "zte-", "longcos", "pantech", "gionee", "portalmmm", "jig browser", "hiptop", "benq", "haier", "^lct", "320x320", "240x320", "176x220", "w3c ", "acs-", "alav", "alca", "amoi", "audi", "avan", "benq", "bird", "blac", "blaz", "brew", "cell", "cldc", "cmd-", "dang", "doco", "eric", "hipt", "inno", "ipaq", "java", "jigs", "kddi", "keji", "leno", "lg-c", "lg-d", "lg-g", "lge-", "maui", "maxo", "midp", "mits", "mmef", "mobi", "mot-",
				"moto", "mwbp", "nec-", "newt", "noki", "oper", "palm", "pana", "pant", "phil", "play", "port", "prox", "qwap", "sage", "sams", "sany", "sch-", "sec-", "send", "seri", "sgh-", "shar", "sie-", "siem", "smal", "smar", "sony", "sph-", "symb", "t-mo", "teli", "tim-", "tsm-", "upg1", "upsi", "vk-v", "voda", "wap-", "wapa", "wapi", "wapp", "wapr", "webc", "winw", "winw", "xda", "xda-", "Googlebot-Mobile" };
		if (userAgent != null) {
			for (String mobileAgent : mobileAgents) {
				if (userAgent.indexOf(mobileAgent) >= 0) {
					return "mobile";
				}
			}
		}

		return "computer";
	}
}			
			
			
			
	<action name="Index" class="cn.netkiller.action.Index">
		<result name="computer" type="redirectAction">
			<param name="actionName">index</param>
			<param name="namespace">/computer</param>
		</result>
		<result name="mobile" type="redirect">
			<param name="location">http://m.netkiller.cn/index.html</param>
		</result>
	</action>