关于复选框批量删除问题

[朱超ZhuChao]

楼主初学web开发，模仿项目里删除商品的功能想加一个批量删除的功能，运行404
这是servlet部分

	//从购物车中删除商品
	private boolean deleteFromCart(HttpServletRequest request, HttpServletResponse response)
	{	
		
		String id = request.getParameter("id"); 
		Cart cart = (Cart)request.getSession().getAttribute("cart");
	     Items item = idao.getItemsById(Integer.parseInt(id));
	   if(cart.removeGoodsFromCart(item))
	   {
	  	return true;
	  }
	  else
	   {
	  	return false;
	  }
		
}
	
	
	//批量删除
	private boolean delCheck(HttpServletRequest request, HttpServletResponse response)
	{
		String idX = request.getParameter("idU");
		String [] idY=idX.split(",");
		for(int k=0;k<idY.length;k++) {
		String abc =idY[k];
		Cart cart = (Cart)request.getSession().getAttribute("cart");	
		Items item = idao.getItemsById(Integer.parseInt(abc));
		if(cart.removeGoodsFromCart(item)) {
			return true;
		}
		    return false;
		}

这是jsp代码

<input type="checkbox" name="chk" id="chk" value=<%=i.getId() %>>

<input type="button" value="批量删除" onclick="delall()" />

 <script language="javascript">
	    	 function delall(){
	    		   var ids="";
	    		   var ck = document.getElementsByName("chk");
	    		   for(var x=0;x<ck.length;x++){
	    		    if(ck[x].checked){
	    		     ids+=ck[x].value+",";
	    		    }
	    		   }
	    		   idU= ids.substring(0,ids.length-1);
	    		   if(idU.length==0){
	    		    alert("请选择要删除的信息");
	    		   }else{
	    		    if(confirm("你确定要删除"+idU+"号的商品吗?")){
	    		    window.location.href="servlet/CartServlet?action=deleteCheck&id="+idU;
	    		    	//document.getElementsByName("id")[0].value=id;
	    		 		//document.forms[0].submit();
	    		 		//document.froms[0].action=
	    		  
	    		 
	    		   }
	    		   }
	    		  } 
   </script>

[朱超ZhuChao]

求大家看看吧。。。。。。。

[zhouyiminga]

404而且到了这一步肯定就是路径错误了。

开头加这个
<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>
<%
	String basePath = request.getContextPath();
%>

window.location.href="servlet/CartServlet?action=deleteCheck&id="+idU;
变成 window.location.href="<%=basePath%>/servlet/CartServlet?action=deleteCheck&id="+idU;

试试这个