JSP:对已选中的商品进行删除（批量删除）

对部分选中的商品进行删除

前端jsp

<input type="checkbox" name="ids" class="small_checkbox" value="<%=rsCart.getString("cart_id")%>"/> <button onclick="delectpart()">删除选中的药品</button>

jquery代码：

<script> //8.多选 部分选中商品 function delectpart() { var cart_id = "" ; var sel = document . getElementsByName ( "ids" ) ; //获取checkbox的值 for ( var i = 0 ; i < sel . length ; i ++ ) if ( sel [ i ] . checked == true ) cart_id += sel [ i ] . value + "," ; console.log(cart_id); alert(cart_id); location.href="Drug_CartDelPart?cart_id="+cart_id; } </script>

后端servlet

System.out.println("进入删除部分购物车后台"); String cart_id=request.getParameter("cart_id"); System.out.println("cart_id:"+cart_id); MysqlConn db=new MysqlConn(); int res=0; String [] arr=cart_id.split (","); //System.out.println("arr[0]:"+arr[0]); for ( int i = 0 ; i <= arr . length -1 ; i ++ ) { System.out.println("arr[i]:"+arr[i]); res=db.doExecute("delete from cart where cart_id=?", new Object[]{arr[i]}); }