자바 미끄럼 검증 잠 금 해제 실현

<div class="drag">
   <div class="bg"></div>
    <div class="text" onselectstart="return false;">       </div>
    <div class="dragBtn">>></div>
   </div>
 
 
<script>
 /*             */
 var successRand = '';
 // 、      DOM     
 var
  box = document.querySelector(".drag"),//  
  bg = document.querySelector(".bg"),//  
  text = document.querySelector(".text"),//  
  btn = document.querySelector(".dragBtn"),//  
  success = false,//         
  distance = box.offsetWidth - btn.offsetWidth;//       （  ）
 
 // 、           
 btn.onmousedown = function(e){
 
  //1.                    
  btn.style.transition = "";
  bg.style.transition ="";
 
  //  ：clientX               ，            (    )     。
 
  //2.          ，            
  var e = e || window.event;
  var downX = e.clientX;
 
  // 、           
  document.onmousemove = function(e){
 
   var e = e || window.event;
   //1.            
   var moveX = e.clientX;
 
   //2.            （         -         ）
   var offsetX = moveX - downX;
 
   //3.       ：                         
   if( offsetX > distance){
    offsetX = distance;//       ，          
   }else if( offsetX < 0){
    offsetX = 0;//          ，          
   }
 
   //4.                            
   btn.style.left = offsetX + "px";
   bg.style.width = offsetX + "px";
 
   //            =        
   if( offsetX == distance){
 
    //1.          
    text.innerHTML = "    ";
    text.style.color = "#fff";
    btn.innerHTML = "√";
    btn.style.color = "green";
    bg.style.backgroundColor = "lightgreen";
 
    //2.          
    success = true;
    //   ，              （                 ）
    btn.onmousedown = null;
    document.onmousemove = null;
 
    //3.          
    setTimeout(function(){
     successRand = new Date().getTime() + Math.random();
     var obj = {};
     obj.rand = successRand;
     $.ajax({
        type: "post",
        url: projectName + "/loginC/setRand",
        data: JSON.stringify(obj),
        datatype: 'json',
        contentType: "application/json",
        success: function (data) {
         //console.log(vm.parent.success);
         //console.log(vm.isTest);
         if (data.success == true) {
         } else {
          layer.alert(data.message);
          // change_authimage();
         }
        },
        error: function () {
         layer.alert("    ");
        }
       });
    },1);
   }
  }
 
  // 、           
  document.onmouseup = function(e){
 
   //       ，     ，     
   if(success){
    return;
   }else{
    //  ，      （   1s       ）
    btn.style.left = 0;
    bg.style.width = 0;
    btn.style.transition = "left 1s ease";
    bg.style.transition = "width 1s ease";
   }
   //       ，            ，              。
   document.onmousemove = null;
   document.onmouseup = null;
  }
 }
 
 //       
 function restDragBtn() {
  /*btn.style.left = 0;
  bg.style.width = 0;
  btn.style.transition = "left 1s ease";
  bg.style.transition = "width 1s ease";
  text.innerHTML = "       ";
  btn.innerHTML = ">>>";
  text.style.color = "#a9a9a9";*/
  location.reload();
 }
</script>

@RequestMapping(value="/setRand",method = RequestMethod.POST)
 @ResponseBody
 @ApiOperation(value = "       ")
 //@ApiImplicitParam(paramType = "query",name= "username" ,value = "   ",dataType = "string")
 /*public void userLogin(@RequestParam(value = "username" , required = false) String username,
       @RequestParam(value = "password" , required = false) String password)*/
 public Message setRand(@RequestBody JSONObject json,HttpServletRequest request){
  Message message = new Message();
  String rand = json.getString("rand");
  if(StringUtils.isNotBlank(rand)){
   //       redis
   HttpSession httpSession = request.getSession();
   redisUtil.set(httpSession.getId() + ".rand",rand);
   redisUtil.expire(httpSession.getId() + ".rand",60);
   message.setSuccess(true);
  }else{
   message.setMessage("    ，     ");
  }
 
  return message;
}

//      
 String randInput = json.getString("rand");
 String rand = (String) redisUtil.get(httpSession.getId() + ".rand");
 
    if(randInput==null||!randInput.equals(rand)) {
     message.setMessage("       ");
     //      
     redisUtil.set(httpSession.getId() + ".rand","");
     return message;
 }