java区分访问端来源

java区分访问端来源

package com.actions;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
import java.io.IOException;
import javax.servlet.http.HttpServletRequest;

import javax.servlet.http.HttpSession;

import org.apache.struts2.ServletActionContext;

import com.opensymphony.xwork2.ActionContext;

public class CheckMobile {

static String phoneReg = "\\b(ip(hone|od)|android|opera m(ob|in)i"
+"|windows (phone|ce)|blackberry"
+"|s(ymbian|eries60|amsung)|p(laybook|alm|rofile/midp"
+"|laystation portable)|nokia|fennec|htc[-_]"
+"|mobile|up.browser|[1-4][0-9]{2}x[1-4][0-9]{2})\\b";
static String tableReg = "\\b(ipad|tablet|(Nexus 7)|up.browser"
+"|[1-4][0-9]{2}x[1-4][0-9]{2})\\b";

static Pattern phonePat = Pattern.compile(phoneReg, Pattern.CASE_INSENSITIVE);
static Pattern tablePat = Pattern.compile(tableReg, Pattern.CASE_INSENSITIVE);

public static boolean check(String userAgent){
if(null == userAgent){
userAgent = "";
}

Matcher matcherPhone = phonePat.matcher(userAgent);
Matcher matcherTable = tablePat.matcher(userAgent);
if(matcherPhone.find() || matcherTable.find()){
return true;
} else {
return false;
}
}

public String checkaa() throws IOException{

boolean isFromMobile=false;
ActionContext actx = ActionContext.getContext();
HttpServletRequest request = (HttpServletRequest) actx.get(ServletActionContext.HTTP_REQUEST);
HttpSession session= request.getSession();
String userAgent = request.getHeader( "USER-AGENT" ).toLowerCase();
if( userAgent ==null){
userAgent = "";
}
isFromMobile=CheckMobile.check(userAgent);

if(isFromMobile){
return "test1";
//System.out.println("移动端访问");
// session.setAttribute("ua","mobile");
} else {
return "test2";
// System.out.println("pc端访问");
// session.setAttribute("ua","pc");

}
}

}