<a href="demo.jsp" data-toggle="modal" data-target="#mymodal">打开</a>

$("#myModal").modal({  
  remote: "page.jsp"  
});  

//v2 
$("#myModal").on("hidden", function() {  
  $(this).removeData("modal");  
});  
//v3 
$("#myModal").on("hidden.bs.modal", function() {  
  $(this).removeData("bs.modal"); 
});  

$("#myModal").on("hidden.bs.modal", function() {  
  $(this).removeData("bs.modal"); 
  /*modal页面加载$()错误,由于移除缓存时加载到<span style="color: rgb(51, 51, 255);"><div class="modal-content"></div></span>未移除的数据，手动移除加载的内容*/ 
  $(this).find(".modal-content").children().remove();  
});