丑是丑了点,但是还是有成就感的 -------
<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>
<%
String path = request.getContextPath();
String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";
%>
<%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %>
<!DOCTYPE HTML >
<html>
<head>
<base href="<%=basePath%>">
<title>添加页面</title>
<!-- The styles -->
<link id="bs-css" href="css/bootstrap-cerulean.css" rel="stylesheet">
<style type="text/css">
body {
padding-bottom: 40px;
}
.sidebar-nav {
padding: 9px 0;
}
</style>
<!-- The HTML5 shim, for IE6-8 support of HTML5 elements -->
<!--[if lt IE 9]>
<script src="http://html5shim.googlecode.com/svn/trunk/html5.js"></script>
<![endif]-->
<!-- The fav icon -->
<link rel="shortcut icon" href="img/favicon.ico">
</head>
<body>
<div class="row-fluid sortable">
<div class="box span12">
<div class="box-header well" data-original-title>
<h2><i class="icon-edit"></i>添加界面</h2>
<div class="box-icon">
<a href="#" class="btn btn-setting btn-round"><i class="icon-cog"></i></a>
<a href="#" class="btn btn-minimize btn-round"><i class="icon-chevron-up"></i></a>
<a href="#" class="btn btn-close btn-round"><i class="icon-remove"></i></a>
</div>
</div>
<div class="box-content">
<form class="form-horizontal" method="post" action="addServlet" enctype="multipart/form-data">
<fieldset>
<legend>添加界面</legend>
<div class="control-group">
<label class="control-label" for="typeahead">商品名称</label>
<div class="controls">
<input type="text" class="span6 typeahead" id="typeahead" name="name" value="" >
</div>
</div>
<div class="control-group">
<label class="control-label" for="typeahead">商品描述</label>
<div class="controls">
<input type="text" name="description" value="" >
</div>
</div>
<div class="control-group">
<label class="control-label" for="typeahead">商品价格</label>
<div class="controls">
<input name="price" value="" >
</div>
</div>
<div class="control-group">
<label class="control-label" for="typeahead">商品库存</label>
<div class="controls">
<input name="stock" value="" >
</div>
</div>
<div id="sanji">
分类
</div>
<div class="control-group">
<label class="control-label" for="typeahead">商品图片</label>
<div class="controls">
<input type="text" name="fileName" value="" >
</div>
</div>
<div class="control-group">
<label class="control-label" for="typeahead">是否删除</label>
<div class="controls">
<input type="text" name="isDelete" value="">
</div>
</div>
<div class="form-actions">
<button type="submit" class="btn btn-primary" >添加</button>
</div>
</fieldset>
</form>
</div>
</div><!--/span-->
</div><!--/row-->
<script type="text/javascript" src="js/jquery-1.8.2.min.js"></script>
<script type="text/javascript">
$(document).ready(function(e){
//三个下拉列表
//加载显示数据
$("#sanji").html("<select id='sheng'></select><select id='shi'></select><select id='qu'></select>");
//加载省份
FillSheng();
//加载市
FillShi();
//加载区
FillQu();
$("#sheng").change(function(){
FillShi();
FillQu();
});
//当市发生改变
$("#shi").change(function(){
FillQu();
});
});
//加载省份信息
function FillSheng()
{
//根据父级代号
//取父级代号
var pcode = 0;
//根据父级代号查数据
$.ajax({
async:false,
url:"ProductcategoryList",
data:{"pcode":pcode},
type:"POST",
dataType:"JSON",
success:function(data)
{
var str = "";
for(var sj in data)
{
str = str+"<option value = '"+data[sj].id+"'>"+data[sj].name+"</option>";
}
$("#sheng").html(str);
}
});
}
//加载市
function FillShi()
{
//根据父级代号
//取父级代号
var pcode = $("#sheng").val();
//根据父级代号查数据
$.ajax({
async:false,
//取消异步
url:"ProductcategoryList",
data:{"pcode":pcode},
type:"POST",
dataType:"JSON",
success:function(data)
{
var str = "";
for(var sj in data)
{
str = str+"<option value = '"+data[sj].id+"'>"+data[sj].name+"</option>";
}
$("#shi").html(str);
}
});
}
//加载区
function FillQu()
{
//根据父级代号
//取父级代号
var pcode = $("#shi").val();
//根据父级代号查数据
$.ajax({
url:"ProductcategoryList",
data:{"pcode":pcode},
type:"POST",
dataType:"JSON",
success:function(data)
{
var str = "";
for(var sj in data)
{
str = str+"<option value = '"+data[sj].id+"'>"+data[sj].name+"</option>";
}
$("#qu").html(str);
}
});
}
</script>
</body>
</html>
import cn.easy.util.ProductCategoryList;
@WebServlet("/ProductcategoryList")
public class ProductcategoryList extends HttpServlet{
@Override
protected void doGet(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
doPost(request, response);
}
@Override
protected void doPost(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
Product_CategoryService service=new Product_CategoryServiceImpl();
try {
int pcode = Integer.parseInt(request.getParameter("pcode"));
List<Product_Category> list = service.selProductCate(pcode);
System.out.println("service.selProductCate() list"+list);
Gson gson=new Gson();
String json = gson.toJson(list);
PrintWriter writer = response.getWriter();
writer.print(json);
writer.close();
} catch (Exception e) {
e.printStackTrace();
}
}
}
@Override
public List<Product_Category> selProductCate(int id) throws Exception {
String sql=" SELECT * FROM easybuy_product_category where parentld=?";
ResultSet rs = executeQuery(sql,id );
List<Product_Category> list = new ArrayList<Product_Category>();
while(rs.next()){
Product_Category category =new Product_Category();
category.setId(rs.getInt("id"));
category.setName(rs.getString("name"));
category.setParentld(rs.getInt("parentld"));
category.setType(rs.getInt("type"));
list.add(category);
}
return list;
}
![](https://images2017.cnblogs.com/blog/1135822/201709/1135822-20170907144000913-1002110322.png)