javaweb 通过过滤器判断用户是从PC端访问还是移动 端访问

http://blog.csdn.net/xiaoxian8023/article/details/37527133
参照上面这个大兄弟写的CheckMobile 工具类，亲测可用

public void doFilter(ServletRequest request, ServletResponse response,
			FilterChain chain) throws IOException, ServletException {
		// TODO Auto-generated method stub
		
		   
           System.out.println("---------------------------------------------this is a test------------------------------------------");
           HttpServletRequest httpRequest = (HttpServletRequest) request;
           String userAgent = httpRequest.getHeader("USER-AGENT").toLowerCase();
           System.out.println("--------------------"+userAgent+"----------------------------------------");
           boolean isFromMobile=CheckMobile.check(userAgent); 
           if(isFromMobile){
        	   System.out.println("移动端访问");  
           }else {
        	   System.out.println("pc端访问");  
           }
           chain.doFilter(request, response);
	}

过滤器代码
这样就能判断了。