java微信扫描公众号二维码实现登陆功能

public static String getSceneTicket(String type,String sceneId){ 
  WxScene scene = new WxScene(); 
  scene.setAction_name(type); 
  scene.setSceneId(Integer.parseInt(sceneId)); 
  scene.setExpire_seconds(1800); 
  String jsonScene = JSONObject.fromObject(scene).toString(); 
  String url = WeixinContents.qr_scene_ticket_url.replaceAll("ACCESS_TOKEN", getAccessToken(WeixinContents.appid,WeixinContents.appsecret).getToken()); 
  System.out.println(jsonScene); 
  JSONObject jsonObject = httpRequest(url, "POST", jsonScene); 
  int result = 0; 
  String ticket = ""; 
  if (null != jsonObject) { 
   if (jsonObject.containsKey("errcode")) { 
    result = jsonObject.getInt("errcode"); 
   }else{ 
    ticket = jsonObject.getString("ticket"); 
   } 
  } 
  return ticket; 
 } 

@ActionKey("/") 
 @ClearInterceptor(ClearLayer.ALL) 
 public void index() { 
  LoginUser u = (LoginUser)getSessionAttr("LoginUser"); 
  setAttr("root", this.getRequest().getContextPath()); 
  if(null==u){ 
   setAttr("ticketId",wxTicket()); 
   render("/WEB-INF/login.html"); 
  }else{ 
   redirect("/index"); 
  } 
 } 
 private String wxTicket() { 
  int sceneId = Db.queryInt("select SEQ_WX_SCENE.Nextval from dual"); 
  String ticketId = WeixinHttpUtils.getSceneTicket("QR_SCENE", sceneId+""); 
  setSessionAttr("ticketId",ticketId); 
  setSessionAttr("sessionId",this.getRequest().getSession().getId()); 
  String sql = "insert into wx_scence_logon(id,sessionid,ticketid,SCENCE_ID) values(sys_guid(),?,?,?)"; 
  Db.update(sql,this.getRequest().getSession().getId(),ticketId,sceneId); 
  return ticketId; 
 } 
 @ActionKey("/cxTicket") 
 @ClearInterceptor(ClearLayer.ALL) 
 public void cxTicket(){ 
  String ticketId = getPara("ticketId"); 
  String sessionid = getPara("sessionId"); 
  int i=0; 
  while(i<10){ 
   Record r = Db.findFirst("select id from wx_scence_logon l,wx_user u where u.open_id = l.open_id and l.ticketid = ? and l.sessionId = ?",ticketId,sessionid); 
   if(r!=null&&StringUtils.isNotEmpty(r.getStr("id"))){ 
     setAttr("success","1"); 
     setAttr("logonId",r.getStr("id")); 
     break; 
   }else{ 
    setAttr("success","0"); 
    try { 
     Thread.sleep(5000); 
     i++; 
    } catch (InterruptedException e) { 
     e.printStackTrace(); 
    } 
   } 
  } 
  render(new JsonRender().forIE()); 
 } 
 @ActionKey("/ticketLogon") 
 @ClearInterceptor(ClearLayer.ALL) 
 public void ticketLogon(){ 
  String id = getPara("ticketId"); 
  Record r = Db.findFirst("select user_id as username from wx_scence_logon l,wx_user u where u.open_id = l.open_id and l.id = ?",id); 
  if(r!=null&&StringUtils.isNotEmpty(r.getStr("username"))){ 
   String username = r.getStr("username"); 
   LoginUser user = LoginUser.dao.findFirst("select user_id,xm,department_id,departmentname,userpw from gy_user u where u.username = ? and u.userlockstate = '1' ",username); 
   String permSql = "select distinct p.* from hr_user_role t,hr_role r,hr_role_perm m,hr_perms p where t.role_id = r.id and m.role_id = r.id and m.perm_id = p.id and user_id = ?"; 
   List<Record> perms = Db.find(permSql,new Object[]{user.getStr("user_id")}); 
   if(perms!=null&&perms.size()>0){ 
    this.getSession().removeAttribute("USER_PERMS"); 
    setSessionAttr("USER_PERMS",perms); 
    getRequest().getSession().setAttribute("LoginUser",user); 
   } 
  } 
  this.redirect("/main"); 
 } 

function wxCxTikcet(){ 
 $.getJSON("${root!}/cxTicket",{ticketId:"${ticketId}",sessionId:"${sessionId}"},function(data){ 
  //alert(data.success=="1"); 
  if(data.success=='1'){ 
   _logon(data.logonId); 
   //window.location.href="${root!}/ticketLogon/" rel="external nofollow" +data.logonId; 
  } 
 }); 
} 
var t_int = window.setInterval("wxCxTikcet()",5000); 

}else if(eventType.equalsIgnoreCase(MessageUtil.EVENT_TYPE_SCAN)){ 
       String scene_id = eventKey; 
       if(Integer.parseInt(eventKey)==0){ 
        respContent = "扫描参数出错！请刷新重试！"; 
       }else{ 
        respContent = getSceneContent(scene_id,fromUserName); 
       } 
     } 

private static String getSceneContent(String sceneId,String fromUserName){ 
  String sql ="select * from WX_SCENCE_LOGON where scence_id = ?"; 
  Record r = Db.findFirst(sql,sceneId); 
  if(r!=null){ 
   String updateSql = "update wx_scence_logon set open_id = ? where id = ?"; 
   Db.update(updateSql,fromUserName,r.getStr("id")); 
   return "您已成功登陆***系统！"; 
  } 
}