1     private static final String WX_AGENT = "micromessenger";
 2     private static final String ALI_AGENT = "alipay";
 3 
 4 
 5     public String getBrowser(HttpServletRequest request) {
 6         String agent = request.getHeader("User-Agent").toLowerCase();
 7         if(agent!=null) {
 8             if (agent.toLowerCase().contains(WX_AGENT)) {
 9                 return "来自微信";
10             } else if (agent.toLowerCase().contains(ALI_AGENT)) {
11                 return "来自支付宝";
12             }
13         }
14         return "来自未知星球";
15     }