方法一：java類的方式
…下面是判斷是否為手機的類

package com.daos.util;

import javax.servlet.http.HttpServletRequest;

public class Tools {

    /** 手機瀏覽器的User-Agent裡的關鍵詞 */
    /** 手機瀏覽器的User-Agent裡的關鍵詞 */
    private static String[] mobileUserAgents = new String[] { "Nokia",// 諾基亞，有山寨機也寫這個的，總還算是手機，Mozilla/5.0
                                                                      // (Nokia5800
 

                                                                      // XpressMusic)UC
                                                                      // AppleWebkit(like
                                                                      // Gecko)
                                                                      // Safari/530
 

            "SAMSUNG",// 三星手機
                      // SAMSUNG-GT-B7722/1.0+SHP/VPP/R5+Dolfin/1.5+Nextreaming+SMM-MMS/1.2.0+profile/MIDP-2.1+configuration/CLDC-1.1
            "MIDP-2",// j2me2.0，Mozilla/5.0 (SymbianOS/9.3; U; Series60/3.2
                     // NokiaE75-1 /110.48.125 Profile/MIDP-2.1
                     // Configuration/CLDC-1.1 ) AppleWebKit/413 (KHTML like
 

                     // Gecko) Safari/413
            "CLDC1.1",// M600/MIDP2.0/CLDC1.1/Screen-240X320
            "SymbianOS",// 塞班系統的，
            "MAUI",// MTK山寨機預設ua
            "UNTRUSTED/1.0",// 疑似山寨機的ua，基本可以確定還是手機
            "Windows CE",// Windows CE，Mozilla/4.0 (compatible; MSIE 6.0;
                         // Windows CE; IEMobile 7.11)
            "iPhone",// iPhone是否也轉wap？不管它，先區分出來再說。Mozilla/5.0 (iPhone; U; CPU
                     // iPhone OS 4_1 like Mac OS X; zh-cn) AppleWebKit/532.9
                     // (KHTML like Gecko) Mobile/8B117
            "iPad",// iPad的ua，Mozilla/5.0 (iPad; U; CPU OS 3_2 like Mac OS X;
                   // zh-cn) AppleWebKit/531.21.10 (KHTML like Gecko)
                   // Version/4.0.4 Mobile/7B367 Safari/531.21.10
            "Android",// Android是否也轉wap？Mozilla/5.0 (Linux; U; Android
                      // 2.1-update1; zh-cn; XT800 Build/TITA_M2_16.22.7)
                      // AppleWebKit/530.17 (KHTML like Gecko) Version/4.0
                      // Mobile Safari/530.17
            "BlackBerry",// BlackBerry8310/2.7.0.106-4.5.0.182
            "UCWEB",// ucweb是否只給wap頁面？ Nokia5800
                    // XpressMusic/UCWEB7.5.0.66/50/999
            "ucweb",// 小寫的ucweb貌似是uc的代理伺服器Mozilla/6.0 (compatible; MSIE 6.0;)
                    // Opera ucweb-squid
            "BREW",// 很奇怪的ua，例如：REW-Applet/0x20068888 (BREW/3.1.5.20; DeviceId:
                   // 40105; Lang: zhcn) ucweb-squid
            "J2ME",// 很奇怪的ua，只有J2ME四個字母
            "YULONG",// 宇龍手機，YULONG-CoolpadN68/10.14 IPANEL/2.0 CTC/1.0
            "YuLong",// 還是宇龍
            "COOLPAD",// 宇龍酷派YL-COOLPADS100/08.10.S100 POLARIS/2.9 CTC/1.0
            "TIANYU",// 天語手機TIANYU-KTOUCH/V209/MIDP2.0/CLDC1.1/Screen-240X320
            "TY-",// 天語，TY-F6229/701116_6215_V0230 JUPITOR/2.2 CTC/1.0
            "K-Touch",// 還是天語K-Touch_N2200_CMCC/TBG110022_1223_V0801 MTK/6223
                      // Release/30.07.2008 Browser/WAP2.0
            "Haier",// 海爾手機，Haier-HG-M217_CMCC/3.0 Release/12.1.2007
                    // Browser/WAP2.0
            "DOPOD",// 多普達手機
            "Lenovo",// 聯想手機，Lenovo-P650WG/S100 LMP/LML Release/2010.02.22
                     // Profile/MIDP2.0 Configuration/CLDC1.1
            "LENOVO",// 聯想手機，比如：LENOVO-P780/176A
            "HUAQIN",// 華勤手機
            "AIGO-",// 愛國者居然也出過手機，AIGO-800C/2.04 TMSS-BROWSER/1.0.0 CTC/1.0
            "CTC/1.0",// 含義不明
            "CTC/2.0",// 含義不明
            "CMCC",// 移動定製手機，K-Touch_N2200_CMCC/TBG110022_1223_V0801 MTK/6223
                   // Release/30.07.2008 Browser/WAP2.0
            "DAXIAN",// 大顯手機DAXIAN X180 UP.Browser/6.2.3.2(GUI) MMP/2.0
            "MOT-",// 摩托羅拉，MOT-MOTOROKRE6/1.0 LinuxOS/2.4.20 Release/8.4.2006
                   // Browser/Opera8.00 Profile/MIDP2.0 Configuration/CLDC1.1
                   // Software/R533_G_11.10.54R
            "SonyEricsson",// 索愛手機，SonyEricssonP990i/R100 Mozilla/4.0
                           // (compatible; MSIE 6.0; Symbian OS; 405) Opera 8.65
                           // [zh-CN]
            "GIONEE",// 金立手機
            "HTC",// HTC手機
            "ZTE",// 中興手機，ZTE-A211/P109A2V1.0.0/WAP2.0 Profile
            "HUAWEI",// 華為手機，
            "webOS",// palm手機，Mozilla/5.0 (webOS/1.4.5; U; zh-CN)
                    // AppleWebKit/532.2 (KHTML like Gecko) Version/1.0
                    // Safari/532.2 Pre/1.0
            "GoBrowser",// 3g GoBrowser.User-Agent=Nokia5230/GoBrowser/2.0.290
                        // Safari
            "IEMobile",// Windows CE手機自帶瀏覽器，
            "WAP2.0",// 支援wap 2.0的
            "micromessenger"
    };

    public static boolean isMobile(HttpServletRequest request) {
        String userAgent = request.getHeader("user-agent");
        if(userAgent != null && !userAgent.trim().equals("")){
            userAgent = userAgent.toLowerCase();
            for (int i = 0; i < mobileUserAgents.length; i++) {
                if (userAgent.indexOf(mobileUserAgents[i].toLowerCase()) > 0) {
                    return true;
                }
            }
        }
        return false;
    }
}

前天判斷跳轉

//根據地址跳轉到手機或pc頁面
<%@page import="com.daos.util.Tools" %> 
<%
String path = request.getContextPath();
String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";

if(Tools.isMobile(request)){
    response.sendRedirect(basePath+"/team/getTeams_m.do");//位址列改變
    request.getRequestDispatcher("/orderSearch/index_m.do").include(request, response);//位址列不變
}
%>

方法二：通過js判斷

function browserRedirect(url) {
    var sUserAgent = navigator.userAgent.toLowerCase();
    var bIsIpad = sUserAgent.match(/ipad/i) == "ipad";
    var bIsIphoneOs = sUserAgent.match(/iphone os/i) == "iphone os";
    var bIsMidp = sUserAgent.match(/midp/i) == "midp";
    var bIsUc7 = sUserAgent.match(/rv:1.2.3.4/i) == "rv:1.2.3.4";
    var bIsUc = sUserAgent.match(/ucweb/i) == "ucweb";
    var bIsAndroid = sUserAgent.match(/android/i) == "android";
    var bIsCE = sUserAgent.match(/windows ce/i) == "windows ce";
    var bIsWM = sUserAgent.match(/windows mobile/i) == "windows mobile";

    if (bIsIpad || bIsIphoneOs || bIsMidp || bIsUc7 || bIsUc || bIsAndroid || bIsCE || bIsWM ){
        return false;
    } else {
        window.location.href = url;
        return true;
    }
};