Ajax的实例以及bootstrap的使用_python

一、bootstrap的简介

二、Bootsrtap如何使用

三、使用Ajax实现省市联动

数据库

实体类： Region.java

数据库访问层接口：IRegionDao.java

实现数据库访问层接口的类：RegionDaoImpl.java

业务逻辑层接口：IRegionBiz.java

实现业务逻辑层的类：RegionBizImpl.java

界面代码

表示层代码：RegionServlet.java

四、分页面板

数据库

实体类： Goods.java

数据库访问层接口：IGoodsDao.java

实现数据库访问层接口的类：GoodsDaoImpl.java

业务逻辑层的接口：IGoodsBiz.java

实现业务逻辑层接口的类：GoodsBizImpl.java

界面代码

表示层代码的编写：GoodsServlet.java

一、bootstrap的简介

Bootstrap 是全球最受欢迎的前端框架，用于构建响应式、移动设备优先的网站。利用

jsDelivr 和我们提供的入门模板帮助你快速掌握 Bootstrap。

二、Bootsrtap如何使用

1.先将下载好的Bootstrap文件复制到拿到web项目中

2.在需要使用Bootstrap的界面进行导包 *** 作

三、使用Ajax实现省市联动数据库

create sequence seq_region;
create sequence seq_goods;
 
--省表
create table bs_region
(
    id   number      NOT NULL PRIMARY KEY,
    name varchar(32) NOT NULL,
    rid  int         NOT NULL
);
 
--省
insert into bs_region
values (seq_region.nextval, '北京市', 0);
insert into bs_region
values (seq_region.nextval, '天津市', 0);
insert into bs_region
values (seq_region.nextval, '上海市', 0);
insert into bs_region
values (seq_region.nextval, '重庆市', 0);
insert into bs_region
values (seq_region.nextval, '河北省', 0);
insert into bs_region
values (seq_region.nextval, '山西省', 0);
insert into bs_region
values (seq_region.nextval, '台湾省', 0);
insert into bs_region
values (seq_region.nextval, '辽宁省', 0);
insert into bs_region
values (seq_region.nextval, '吉林省', 0);
insert into bs_region
values (seq_region.nextval, '黑龙江省', 0);
insert into bs_region
values (seq_region.nextval, '江苏省', 0);
insert into bs_region
values (seq_region.nextval, '浙江省', 0);
insert into bs_region
values (seq_region.nextval, '安徽省', 0);
insert into bs_region
values (seq_region.nextval, '福建省', 0);
insert into bs_region
values (seq_region.nextval, '江西省', 0);
insert into bs_region
values (seq_region.nextval, '山东省', 0);
insert into bs_region
values (seq_region.nextval, '河南省', 0);
insert into bs_region
values (seq_region.nextval, '湖北省', 0);
insert into bs_region
values (seq_region.nextval, '湖南省', 0);
insert into bs_region
values (seq_region.nextval, '广东省', 0);
insert into bs_region
values (seq_region.nextval, '甘肃省', 0);
insert into bs_region
values (seq_region.nextval, '四川省', 0);
insert into bs_region
values (seq_region.nextval, '贵州省', 0);
insert into bs_region
values (seq_region.nextval, '海南省', 0);
insert into bs_region
values (seq_region.nextval, '云南省', 0);
insert into bs_region
values (seq_region.nextval, '青海省', 0);
insert into bs_region
values (seq_region.nextval, '陕西省', 0);
insert into bs_region
values (seq_region.nextval, '广西壮族自治区', 0);
insert into bs_region
values (seq_region.nextval, '西藏自治区', 0);
insert into bs_region
values (seq_region.nextval, '宁夏回族自治区', 0);
insert into bs_region
values (seq_region.nextval, '新疆维吾尔自治区', 0);
insert into bs_region
values (seq_region.nextval, '内蒙古自治区', 0);
insert into bs_region
values (seq_region.nextval, '澳门特别行政区', 0);
insert into bs_region
values (seq_region.nextval, '香港特别行政区', 0);
 
--插入各个省的城市数据
--4个直辖市  ;
insert into bs_region
values (seq_region.nextval, '北京市', 1);
insert into bs_region
values (seq_region.nextval, '天津市', 2);
insert into bs_region
values (seq_region.nextval, '上海市', 3);
insert into bs_region
values (seq_region.nextval, '重庆市', 4);
--5河北省(2005年辖：11个地级市，36个市辖区、22个县级市、108个县、6个自治县)  ;
insert into bs_region
values (seq_region.nextval, '石家庄市', 5);
insert into bs_region
values (seq_region.nextval, '唐山市', 5);
insert into bs_region
values (seq_region.nextval, '秦皇岛市', 5);
insert into bs_region
values (seq_region.nextval, '邯郸市', 5);
insert into bs_region
values (seq_region.nextval, '邢台市', 5);
insert into bs_region
values (seq_region.nextval, '保定市', 5);
insert into bs_region
values (seq_region.nextval, '张家口市', 5);
insert into bs_region
values (seq_region.nextval, '承德市', 5);
insert into bs_region
values (seq_region.nextval, '沧州市', 5);
insert into bs_region
values (seq_region.nextval, '廊坊市', 5);
insert into bs_region
values (seq_region.nextval, '衡水市', 5);
--6山西省11个城市  ;
insert into bs_region
values (seq_region.nextval, '太原市', 6);
insert into bs_region
values (seq_region.nextval, '大同市', 6);
insert into bs_region
values (seq_region.nextval, '阳泉市', 6);
insert into bs_region
values (seq_region.nextval, '长治市', 6);
insert into bs_region
values (seq_region.nextval, '晋城市', 6);
insert into bs_region
values (seq_region.nextval, '朔州市', 6);
insert into bs_region
values (seq_region.nextval, '晋中市', 6);
insert into bs_region
values (seq_region.nextval, '运城市', 6);
insert into bs_region
values (seq_region.nextval, '忻州市', 6);
insert into bs_region
values (seq_region.nextval, '临汾市', 6);
insert into bs_region
values (seq_region.nextval, '吕梁市', 6);
 
insert into bs_region
values (seq_region.nextval, '台北市', 7);
insert into bs_region
values (seq_region.nextval, '高雄市', 7);
insert into bs_region
values (seq_region.nextval, '基隆市', 7);
insert into bs_region
values (seq_region.nextval, '台中市', 7);
insert into bs_region
values (seq_region.nextval, '台南市', 7);
insert into bs_region
values (seq_region.nextval, '新竹市', 7);
insert into bs_region
values (seq_region.nextval, '嘉义市', 7);
insert into bs_region
values (seq_region.nextval, '台北县', 7);
insert into bs_region
values (seq_region.nextval, '宜兰县', 7);
insert into bs_region
values (seq_region.nextval, '桃园县', 7);
insert into bs_region
values (seq_region.nextval, '新竹县', 7);
insert into bs_region
values (seq_region.nextval, '苗栗县', 7);
insert into bs_region
values (seq_region.nextval, '台中县', 7);
insert into bs_region
values (seq_region.nextval, '彰化县', 7);
insert into bs_region
values (seq_region.nextval, '南投县', 7);
insert into bs_region
values (seq_region.nextval, '云林县', 7);
insert into bs_region
values (seq_region.nextval, '嘉义县', 7);
insert into bs_region
values (seq_region.nextval, '台南县', 7);
insert into bs_region
values (seq_region.nextval, '高雄县', 7);
insert into bs_region
values (seq_region.nextval, '屏东县', 7);
insert into bs_region
values (seq_region.nextval, '澎湖县', 7);
insert into bs_region
values (seq_region.nextval, '台东县', 7);
insert into bs_region
values (seq_region.nextval, '花莲县', 7);
 
insert into bs_region
values (seq_region.nextval, '沈阳市', 8);
insert into bs_region
values (seq_region.nextval, '大连市', 8);
insert into bs_region
values (seq_region.nextval, '鞍山市', 8);
insert into bs_region
values (seq_region.nextval, '抚顺市', 8);
insert into bs_region
values (seq_region.nextval, '本溪市', 8);
insert into bs_region
values (seq_region.nextval, '丹东市', 8);
insert into bs_region
values (seq_region.nextval, '锦州市', 8);
insert into bs_region
values (seq_region.nextval, '营口市', 8);
insert into bs_region
values (seq_region.nextval, '阜新市', 8);
insert into bs_region
values (seq_region.nextval, '辽阳市', 8);
insert into bs_region
values (seq_region.nextval, '盘锦市', 8);
insert into bs_region
values (seq_region.nextval, '铁岭市', 8);
insert into bs_region
values (seq_region.nextval, '朝阳市', 8);
insert into bs_region
values (seq_region.nextval, '葫芦岛市', 8);
 
insert into bs_region
values (seq_region.nextval, '长春市', 9);
insert into bs_region
values (seq_region.nextval, '吉林市', 9);
insert into bs_region
values (seq_region.nextval, '四平市', 9);
insert into bs_region
values (seq_region.nextval, '辽源市', 9);
insert into bs_region
values (seq_region.nextval, '通化市', 9);
insert into bs_region
values (seq_region.nextval, '白山市', 9);
insert into bs_region
values (seq_region.nextval, '松原市', 9);
insert into bs_region
values (seq_region.nextval, '白城市', 9);
insert into bs_region
values (seq_region.nextval, '延边朝鲜族自治州', 9);
 
insert into bs_region
values (seq_region.nextval, '哈尔滨市', 10);
insert into bs_region
values (seq_region.nextval, '齐齐哈尔市', 10);
insert into bs_region
values (seq_region.nextval, '鹤 岗 市', 10);
insert into bs_region
values (seq_region.nextval, '双鸭山市', 10);
insert into bs_region
values (seq_region.nextval, '鸡 西 市', 10);
insert into bs_region
values (seq_region.nextval, '大 庆 市', 10);
insert into bs_region
values (seq_region.nextval, '伊 春 市', 10);
insert into bs_region
values (seq_region.nextval, '牡丹江市', 10);
insert into bs_region
values (seq_region.nextval, '佳木斯市', 10);
insert into bs_region
values (seq_region.nextval, '七台河市', 10);
insert into bs_region
values (seq_region.nextval, '黑 河 市', 10);
insert into bs_region
values (seq_region.nextval, '绥 化 市', 10);
insert into bs_region
values (seq_region.nextval, '大兴安岭地区', 10);
 
insert into bs_region
values (seq_region.nextval, '南京市', 11);
insert into bs_region
values (seq_region.nextval, '无锡市', 11);
insert into bs_region
values (seq_region.nextval, '徐州市', 11);
insert into bs_region
values (seq_region.nextval, '常州市', 11);
insert into bs_region
values (seq_region.nextval, '苏州市', 11);
insert into bs_region
values (seq_region.nextval, '南通市', 11);
insert into bs_region
values (seq_region.nextval, '连云港市', 11);
insert into bs_region
values (seq_region.nextval, '淮安市', 11);
insert into bs_region
values (seq_region.nextval, '盐城市', 11);
insert into bs_region
values (seq_region.nextval, '扬州市', 11);
insert into bs_region
values (seq_region.nextval, '镇江市', 11);
insert into bs_region
values (seq_region.nextval, '泰州市', 11);
insert into bs_region
values (seq_region.nextval, '宿迁市', 11);
 
insert into bs_region
values (seq_region.nextval, '杭州市', 12);
insert into bs_region
values (seq_region.nextval, '宁波市', 12);
insert into bs_region
values (seq_region.nextval, '温州市', 12);
insert into bs_region
values (seq_region.nextval, '嘉兴市', 12);
insert into bs_region
values (seq_region.nextval, '湖州市', 12);
insert into bs_region
values (seq_region.nextval, '绍兴市', 12);
insert into bs_region
values (seq_region.nextval, '金华市', 12);
insert into bs_region
values (seq_region.nextval, '衢州市', 12);
insert into bs_region
values (seq_region.nextval, '舟山市', 12);
insert into bs_region
values (seq_region.nextval, '台州市', 12);
insert into bs_region
values (seq_region.nextval, '丽水市', 12);
 
insert into bs_region
values (seq_region.nextval, '合肥市', 13);
insert into bs_region
values (seq_region.nextval, '芜湖市', 13);
insert into bs_region
values (seq_region.nextval, '蚌埠市', 13);
insert into bs_region
values (seq_region.nextval, '淮南市', 13);
insert into bs_region
values (seq_region.nextval, '马鞍山市', 13);
insert into bs_region
values (seq_region.nextval, '淮北市', 13);
insert into bs_region
values (seq_region.nextval, '铜陵市', 13);
insert into bs_region
values (seq_region.nextval, '安庆市', 13);
insert into bs_region
values (seq_region.nextval, '黄山市', 13);
insert into bs_region
values (seq_region.nextval, '滁州市', 13);
insert into bs_region
values (seq_region.nextval, '阜阳市', 13);
insert into bs_region
values (seq_region.nextval, '宿州市', 13);
insert into bs_region
values (seq_region.nextval, '巢湖市', 13);
insert into bs_region
values (seq_region.nextval, '六安市', 13);
insert into bs_region
values (seq_region.nextval, '亳州市', 13);
insert into bs_region
values (seq_region.nextval, '池州市', 13);
insert into bs_region
values (seq_region.nextval, '宣城市', 13);
 
insert into bs_region
values (seq_region.nextval, '福州市', 14);
insert into bs_region
values (seq_region.nextval, '厦门市', 14);
insert into bs_region
values (seq_region.nextval, '莆田市', 14);
insert into bs_region
values (seq_region.nextval, '三明市', 14);
insert into bs_region
values (seq_region.nextval, '泉州市', 14);
insert into bs_region
values (seq_region.nextval, '漳州市', 14);
insert into bs_region
values (seq_region.nextval, '南平市', 14);
insert into bs_region
values (seq_region.nextval, '龙岩市', 14);
insert into bs_region
values (seq_region.nextval, '宁德市', 14);
 
insert into bs_region
values (seq_region.nextval, '南昌市', 15);
insert into bs_region
values (seq_region.nextval, '景德镇市', 15);
insert into bs_region
values (seq_region.nextval, '萍乡市', 15);
insert into bs_region
values (seq_region.nextval, '九江市', 15);
insert into bs_region
values (seq_region.nextval, '新余市', 15);
insert into bs_region
values (seq_region.nextval, '鹰潭市', 15);
insert into bs_region
values (seq_region.nextval, '赣州市', 15);
insert into bs_region
values (seq_region.nextval, '吉安市', 15);
insert into bs_region
values (seq_region.nextval, '宜春市', 15);
insert into bs_region
values (seq_region.nextval, '抚州市', 15);
insert into bs_region
values (seq_region.nextval, '上饶市', 15);
 
insert into bs_region
values (seq_region.nextval, '济南市', 16);
insert into bs_region
values (seq_region.nextval, '青岛市', 16);
insert into bs_region
values (seq_region.nextval, '淄博市', 16);
insert into bs_region
values (seq_region.nextval, '枣庄市', 16);
insert into bs_region
values (seq_region.nextval, '东营市', 16);
insert into bs_region
values (seq_region.nextval, '烟台市', 16);
insert into bs_region
values (seq_region.nextval, '潍坊市', 16);
insert into bs_region
values (seq_region.nextval, '济宁市', 16);
insert into bs_region
values (seq_region.nextval, '泰安市', 16);
insert into bs_region
values (seq_region.nextval, '威海市', 16);
insert into bs_region
values (seq_region.nextval, '日照市', 16);
insert into bs_region
values (seq_region.nextval, '莱芜市', 16);
insert into bs_region
values (seq_region.nextval, '临沂市', 16);
insert into bs_region
values (seq_region.nextval, '德州市', 16);
insert into bs_region
values (seq_region.nextval, '聊城市', 16);
insert into bs_region
values (seq_region.nextval, '滨州市', 16);
insert into bs_region
values (seq_region.nextval, '菏泽市', 16);
 
insert into bs_region
values (seq_region.nextval, '郑州市', 17);
insert into bs_region
values (seq_region.nextval, '开封市', 17);
insert into bs_region
values (seq_region.nextval, '洛阳市', 17);
insert into bs_region
values (seq_region.nextval, '平顶山市', 17);
insert into bs_region
values (seq_region.nextval, '安阳市', 17);
insert into bs_region
values (seq_region.nextval, '鹤壁市', 17);
insert into bs_region
values (seq_region.nextval, '新乡市', 17);
insert into bs_region
values (seq_region.nextval, '焦作市', 17);
insert into bs_region
values (seq_region.nextval, '濮阳市', 17);
insert into bs_region
values (seq_region.nextval, '许昌市', 17);
insert into bs_region
values (seq_region.nextval, '漯河市', 17);
insert into bs_region
values (seq_region.nextval, '三门峡市', 17);
insert into bs_region
values (seq_region.nextval, '南阳市', 17);
insert into bs_region
values (seq_region.nextval, '商丘市', 17);
insert into bs_region
values (seq_region.nextval, '信阳市', 17);
insert into bs_region
values (seq_region.nextval, '周口市', 17);
insert into bs_region
values (seq_region.nextval, '驻马店市', 17);
insert into bs_region
values (seq_region.nextval, '济源市', 17);
 
insert into bs_region
values (seq_region.nextval, '武汉市', 18);
insert into bs_region
values (seq_region.nextval, '黄石市', 18);
insert into bs_region
values (seq_region.nextval, '十堰市', 18);
insert into bs_region
values (seq_region.nextval, '荆州市', 18);
insert into bs_region
values (seq_region.nextval, '宜昌市', 18);
insert into bs_region
values (seq_region.nextval, '襄樊市', 18);
insert into bs_region
values (seq_region.nextval, '鄂州市', 18);
insert into bs_region
values (seq_region.nextval, '荆门市', 18);
insert into bs_region
values (seq_region.nextval, '孝感市', 18);
insert into bs_region
values (seq_region.nextval, '黄冈市', 18);
insert into bs_region
values (seq_region.nextval, '咸宁市', 18);
insert into bs_region
values (seq_region.nextval, '随州市', 18);
insert into bs_region
values (seq_region.nextval, '仙桃市', 18);
insert into bs_region
values (seq_region.nextval, '天门市', 18);
insert into bs_region
values (seq_region.nextval, '潜江市', 18);
insert into bs_region
values (seq_region.nextval, '神农架林区', 18);
insert into bs_region
values (seq_region.nextval, '恩施土家族苗族自治州', 18);
 
insert into bs_region
values (seq_region.nextval, '长沙市', 19);
insert into bs_region
values (seq_region.nextval, '株洲市', 19);
insert into bs_region
values (seq_region.nextval, '湘潭市', 19);
insert into bs_region
values (seq_region.nextval, '衡阳市', 19);
insert into bs_region
values (seq_region.nextval, '邵阳市', 19);
insert into bs_region
values (seq_region.nextval, '岳阳市', 19);
insert into bs_region
values (seq_region.nextval, '常德市', 19);
insert into bs_region
values (seq_region.nextval, '张家界市', 19);
insert into bs_region
values (seq_region.nextval, '益阳市', 19);
insert into bs_region
values (seq_region.nextval, '郴州市', 19);
insert into bs_region
values (seq_region.nextval, '永州市', 19);
insert into bs_region
values (seq_region.nextval, '怀化市', 19);
insert into bs_region
values (seq_region.nextval, '娄底市', 19);
insert into bs_region
values (seq_region.nextval, '湘西土家族苗族自治州', 19);
 
insert into bs_region
values (seq_region.nextval, '广州市', 20);
insert into bs_region
values (seq_region.nextval, '深圳市', 20);
insert into bs_region
values (seq_region.nextval, '珠海市', 20);
insert into bs_region
values (seq_region.nextval, '汕头市', 20);
insert into bs_region
values (seq_region.nextval, '韶关市', 20);
insert into bs_region
values (seq_region.nextval, '佛山市', 20);
insert into bs_region
values (seq_region.nextval, '江门市', 20);
insert into bs_region
values (seq_region.nextval, '湛江市', 20);
insert into bs_region
values (seq_region.nextval, '茂名市', 20);
insert into bs_region
values (seq_region.nextval, '肇庆市', 20);
insert into bs_region
values (seq_region.nextval, '惠州市', 20);
insert into bs_region
values (seq_region.nextval, '梅州市', 20);
insert into bs_region
values (seq_region.nextval, '汕尾市', 20);
insert into bs_region
values (seq_region.nextval, '河源市', 20);
insert into bs_region
values (seq_region.nextval, '阳江市', 20);
insert into bs_region
values (seq_region.nextval, '清远市', 20);
insert into bs_region
values (seq_region.nextval, '东莞市', 20);
insert into bs_region
values (seq_region.nextval, '中山市', 20);
insert into bs_region
values (seq_region.nextval, '潮州市', 20);
insert into bs_region
values (seq_region.nextval, '揭阳市', 20);
insert into bs_region
values (seq_region.nextval, '云浮市', 20);
 
insert into bs_region
values (seq_region.nextval, '兰州市', 21);
insert into bs_region
values (seq_region.nextval, '金昌市', 21);
insert into bs_region
values (seq_region.nextval, '白银市', 21);
insert into bs_region
values (seq_region.nextval, '天水市', 21);
insert into bs_region
values (seq_region.nextval, '嘉峪关市', 21);
insert into bs_region
values (seq_region.nextval, '武威市', 21);
insert into bs_region
values (seq_region.nextval, '张掖市', 21);
insert into bs_region
values (seq_region.nextval, '平凉市', 21);
insert into bs_region
values (seq_region.nextval, '酒泉市', 21);
insert into bs_region
values (seq_region.nextval, '庆阳市', 21);
insert into bs_region
values (seq_region.nextval, '定西市', 21);
insert into bs_region
values (seq_region.nextval, '陇南市', 21);
insert into bs_region
values (seq_region.nextval, '临夏回族自治州', 21);
insert into bs_region
values (seq_region.nextval, '甘南藏族自治州', 21);
 
insert into bs_region
values (seq_region.nextval, '成都市', 22);
insert into bs_region
values (seq_region.nextval, '自贡市', 22);
insert into bs_region
values (seq_region.nextval, '攀枝花市', 22);
insert into bs_region
values (seq_region.nextval, '泸州市', 22);
insert into bs_region
values (seq_region.nextval, '德阳市', 22);
insert into bs_region
values (seq_region.nextval, '绵阳市', 22);
insert into bs_region
values (seq_region.nextval, '广元市', 22);
insert into bs_region
values (seq_region.nextval, '遂宁市', 22);
insert into bs_region
values (seq_region.nextval, '内江市', 22);
insert into bs_region
values (seq_region.nextval, '乐山市', 22);
insert into bs_region
values (seq_region.nextval, '南充市', 22);
insert into bs_region
values (seq_region.nextval, '眉山市', 22);
insert into bs_region
values (seq_region.nextval, '宜宾市', 22);
insert into bs_region
values (seq_region.nextval, '广安市', 22);
insert into bs_region
values (seq_region.nextval, '达州市', 22);
insert into bs_region
values (seq_region.nextval, '雅安市', 22);
insert into bs_region
values (seq_region.nextval, '巴中市', 22);
insert into bs_region
values (seq_region.nextval, '资阳市', 22);
insert into bs_region
values (seq_region.nextval, '阿坝藏族羌族自治州', 22);
insert into bs_region
values (seq_region.nextval, '甘孜藏族自治州', 22);
insert into bs_region
values (seq_region.nextval, '凉山彝族自治州', 22);
 
insert into bs_region
values (seq_region.nextval, '贵阳市', 23);
insert into bs_region
values (seq_region.nextval, '六盘水市', 23);
insert into bs_region
values (seq_region.nextval, '遵义市', 23);
insert into bs_region
values (seq_region.nextval, '安顺市', 23);
insert into bs_region
values (seq_region.nextval, '铜仁地区', 23);
insert into bs_region
values (seq_region.nextval, '毕节地区', 23);
insert into bs_region
values (seq_region.nextval, '黔西南布依族苗族自治州', 23);
insert into bs_region
values (seq_region.nextval, '黔东南苗族侗族自治州', 23);
insert into bs_region
values (seq_region.nextval, '黔南布依族苗族自治州', 23);
 
insert into bs_region
values (seq_region.nextval, '海口市', 24);
insert into bs_region
values (seq_region.nextval, '三亚市', 24);
insert into bs_region
values (seq_region.nextval, '五指山市', 24);
insert into bs_region
values (seq_region.nextval, '琼海市', 24);
insert into bs_region
values (seq_region.nextval, '儋州市', 24);
insert into bs_region
values (seq_region.nextval, '文昌市', 24);
insert into bs_region
values (seq_region.nextval, '万宁市', 24);
insert into bs_region
values (seq_region.nextval, '东方市', 24);
insert into bs_region
values (seq_region.nextval, '澄迈县', 24);
insert into bs_region
values (seq_region.nextval, '定安县', 24);
insert into bs_region
values (seq_region.nextval, '屯昌县', 24);
insert into bs_region
values (seq_region.nextval, '临高县', 24);
insert into bs_region
values (seq_region.nextval, '白沙黎族自治县', 24);
insert into bs_region
values (seq_region.nextval, '昌江黎族自治县', 24);
insert into bs_region
values (seq_region.nextval, '乐东黎族自治县', 24);
insert into bs_region
values (seq_region.nextval, '陵水黎族自治县', 24);
insert into bs_region
values (seq_region.nextval, '保亭黎族苗族自治县', 24);
insert into bs_region
values (seq_region.nextval, '琼中黎族苗族自治县', 24);
 
insert into bs_region
values (seq_region.nextval, '昆明市', 25);
insert into bs_region
values (seq_region.nextval, '曲靖市', 25);
insert into bs_region
values (seq_region.nextval, '玉溪市', 25);
insert into bs_region
values (seq_region.nextval, '保山市', 25);
insert into bs_region
values (seq_region.nextval, '昭通市', 25);
insert into bs_region
values (seq_region.nextval, '丽江市', 25);
insert into bs_region
values (seq_region.nextval, '思茅市', 25);
insert into bs_region
values (seq_region.nextval, '临沧市', 25);
insert into bs_region
values (seq_region.nextval, '文山壮族苗族自治州', 25);
insert into bs_region
values (seq_region.nextval, '红河哈尼族彝族自治州', 25);
insert into bs_region
values (seq_region.nextval, '西双版纳傣族自治州', 25);
insert into bs_region
values (seq_region.nextval, '楚雄彝族自治州', 25);
insert into bs_region
values (seq_region.nextval, '大理白族自治州', 25);
insert into bs_region
values (seq_region.nextval, '德宏傣族景颇族自治州', 25);
insert into bs_region
values (seq_region.nextval, '怒江傈傈族自治州', 25);
insert into bs_region
values (seq_region.nextval, '迪庆藏族自治州', 25);
 
insert into bs_region
values (seq_region.nextval, '西宁市', 26);
insert into bs_region
values (seq_region.nextval, '海东地区', 26);
insert into bs_region
values (seq_region.nextval, '海北藏族自治州', 26);
insert into bs_region
values (seq_region.nextval, '黄南藏族自治州', 26);
insert into bs_region
values (seq_region.nextval, '海南藏族自治州', 26);
insert into bs_region
values (seq_region.nextval, '果洛藏族自治州', 26);
insert into bs_region
values (seq_region.nextval, '玉树藏族自治州', 26);
insert into bs_region
values (seq_region.nextval, '海西蒙古族藏族自治州', 26);
 
insert into bs_region
values (seq_region.nextval, '西安市', 27);
insert into bs_region
values (seq_region.nextval, '铜川市', 27);
insert into bs_region
values (seq_region.nextval, '宝鸡市', 27);
insert into bs_region
values (seq_region.nextval, '咸阳市', 27);
insert into bs_region
values (seq_region.nextval, '渭南市', 27);
insert into bs_region
values (seq_region.nextval, '延安市', 27);
insert into bs_region
values (seq_region.nextval, '汉中市', 27);
insert into bs_region
values (seq_region.nextval, '榆林市', 27);
insert into bs_region
values (seq_region.nextval, '安康市', 27);
insert into bs_region
values (seq_region.nextval, '商洛市', 27);
 
insert into bs_region
values (seq_region.nextval, '南宁市', 28);
insert into bs_region
values (seq_region.nextval, '柳州市', 28);
insert into bs_region
values (seq_region.nextval, '桂林市', 28);
insert into bs_region
values (seq_region.nextval, '梧州市', 28);
insert into bs_region
values (seq_region.nextval, '北海市', 28);
insert into bs_region
values (seq_region.nextval, '防城港市', 28);
insert into bs_region
values (seq_region.nextval, '钦州市', 28);
insert into bs_region
values (seq_region.nextval, '贵港市', 28);
insert into bs_region
values (seq_region.nextval, '玉林市', 28);
insert into bs_region
values (seq_region.nextval, '百色市', 28);
insert into bs_region
values (seq_region.nextval, '贺州市', 28);
insert into bs_region
values (seq_region.nextval, '河池市', 28);
insert into bs_region
values (seq_region.nextval, '来宾市', 28);
insert into bs_region
values (seq_region.nextval, '崇左市', 28);
 
insert into bs_region
values (seq_region.nextval, '拉萨市', 29);
insert into bs_region
values (seq_region.nextval, '那曲地区', 29);
insert into bs_region
values (seq_region.nextval, '昌都地区', 29);
insert into bs_region
values (seq_region.nextval, '山南地区', 29);
insert into bs_region
values (seq_region.nextval, '日喀则地区', 29);
insert into bs_region
values (seq_region.nextval, '阿里地区', 29);
insert into bs_region
values (seq_region.nextval, '林芝地区', 29);
--30宁夏回族自治区  ;
insert into bs_region
values (seq_region.nextval, '银川市', 30);
insert into bs_region
values (seq_region.nextval, '石嘴山市', 30);
insert into bs_region
values (seq_region.nextval, '吴忠市', 30);
insert into bs_region
values (seq_region.nextval, '固原市', 30);
insert into bs_region
values (seq_region.nextval, '中卫市', 30);
 
insert into bs_region
values (seq_region.nextval, '乌鲁木齐市', 31);
insert into bs_region
values (seq_region.nextval, '克拉玛依市', 31);
insert into bs_region
values (seq_region.nextval, '石河子市　', 31);
insert into bs_region
values (seq_region.nextval, '阿拉尔市', 31);
insert into bs_region
values (seq_region.nextval, '图木舒克市', 31);
insert into bs_region
values (seq_region.nextval, '五家渠市', 31);
insert into bs_region
values (seq_region.nextval, '吐鲁番市', 31);
insert into bs_region
values (seq_region.nextval, '阿克苏市', 31);
insert into bs_region
values (seq_region.nextval, '喀什市', 31);
insert into bs_region
values (seq_region.nextval, '哈密市', 31);
insert into bs_region
values (seq_region.nextval, '和田市', 31);
insert into bs_region
values (seq_region.nextval, '阿图什市', 31);
insert into bs_region
values (seq_region.nextval, '库尔勒市', 31);
insert into bs_region
values (seq_region.nextval, '昌吉市　', 31);
insert into bs_region
values (seq_region.nextval, '阜康市', 31);
insert into bs_region
values (seq_region.nextval, '米泉市', 31);
insert into bs_region
values (seq_region.nextval, '博乐市', 31);
insert into bs_region
values (seq_region.nextval, '伊宁市', 31);
insert into bs_region
values (seq_region.nextval, '奎屯市', 31);
insert into bs_region
values (seq_region.nextval, '塔城市', 31);
insert into bs_region
values (seq_region.nextval, '乌苏市', 31);
insert into bs_region
values (seq_region.nextval, '阿勒泰市', 31);
 
insert into bs_region
values (seq_region.nextval, '呼和浩特市', 32);
insert into bs_region
values (seq_region.nextval, '包头市', 32);
insert into bs_region
values (seq_region.nextval, '乌海市', 32);
insert into bs_region
values (seq_region.nextval, '赤峰市', 32);
insert into bs_region
values (seq_region.nextval, '通辽市', 32);
insert into bs_region
values (seq_region.nextval, '鄂尔多斯市', 32);
insert into bs_region
values (seq_region.nextval, '呼伦贝尔市', 32);
insert into bs_region
values (seq_region.nextval, '巴彦淖尔市', 32);
insert into bs_region
values (seq_region.nextval, '乌兰察布市', 32);
insert into bs_region
values (seq_region.nextval, '锡林郭勒盟', 32);
insert into bs_region
values (seq_region.nextval, '兴安盟', 32);
insert into bs_region
values (seq_region.nextval, '阿拉善盟', 32);
 
insert into bs_region
values (seq_region.nextval, '澳门特别行政区', 33);
 
insert into bs_region
values (seq_region.nextval, '香港特别行政区', 34);

实体类： Region.java


public class Region {
 
	private Integer id;
	private String name;
	private Integer rid;
	public Integer getId() {
		return id;
	}
	public void setId(Integer id) {
		this.id = id;
	}
	public String getName() {
		return name;
	}
	public void setName(String name) {
		this.name = name;
	}
	public Integer getRid() {
		return rid;
	}
	public void setRid(Integer rid) {
		this.rid = rid;
	}
	public Region(Integer id, String name, Integer rid) {
		super();
		this.id = id;
		this.name = name;
		this.rid = rid;
	}
	public Region() {
		super();
		// TODO Auto-generated constructor stub
	}
	@Override
	public String toString() {
		return "Region [id=" + id + ", name=" + name + ", rid=" + rid + "]";
	}
	
	
}

数据库访问层接口：IRegionDao.java


public interface IRegionDao {
 
   List list(int rid);
	
}

实现数据库访问层接口的类：RegionDaoImpl.java


 
public class RegionDaoImpl implements IRegionDao{
 
	
		private Connection con;
		private PreparedStatement ps;
		private ResultSet rs;
		
		@Override
		public List list(int rid) {
	        List list=new ArrayList<>();
	        try {
	            con=DBHelper.getCon();
	            ps=con.prepareStatement("select * from BS_REGION where rid=?");
	            ps.setInt(1,rid);
	            rs= ps.executeQuery();
	            while(rs.next()){
	                Region region=new Region();
	                region.setId(rs.getInt(1));
	                region.setName(rs.getString(2));
	                region.setRid(rs.getInt(3));
	                list.add(region);
	            }
	        }catch (Exception e){
	            e.printStackTrace();
	        }finally {
	            DBHelper.close(con,ps,rs);
	        }
	        return list;
	    }
 
	}

业务逻辑层接口：IRegionBiz.java

package com.zking.biz;
 
import java.util.List;
 
import com.zking.pojo.Region;
 
public interface IRegionBiz {
 
	  List list(int rid);
	
}

实现业务逻辑层的类：RegionBizImpl.java


public class RegionBizImpl implements IRegionBiz{
 
    private IRegionDao regionDao=new RegionDaoImpl();
	
	@Override
	public List list(int rid) {
		return regionDao.list(rid);
	}
}

界面代码

<%@ page contentType="text/html;charset=UTF-8" language="java" %>


    Title

表示层代码：RegionServlet.java


 
@WebServlet("/region.do")
public class RegionServlet extends HttpServlet{
 
	 private IRegionBiz regionBiz=new RegionBizImpl();
	    private ObjectMapper mapper=new ObjectMapper();
 
	    @Override
	    protected void doGet(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
	        doPost(req,resp);
	    }
 
	    @Override
	    protected void doPost(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
	        //你先得拿到rid
	        Integer rid = Integer.parseInt(req.getParameter("rid"));
	        //根据rid查询对应的结果
	        List list = regionBiz.list(rid);
	        //设置响应格式的编码
	        resp.setCharacterEncoding("utf-8");
	        //丢出去,通过响应对象丢出去
	        PrintWriter out = resp.getWriter();
	        //应该不是普通字符串,是json字符串
	        String json = mapper.writeValueAsString(list);
	        out.println(json);
	    }
	
}

四、分页面板数据库

create table bs_GOODS
(
    ID       NUMBER                                      not null primary key,
    NAME     VARCHAR2(20)                                not null,
    DESCRIBE VARCHAR2(100) default '此商品暂时没有介绍'           not null,
    PRICE    NUMBER                                      not null,
    stock    number        default 0                     not null,
    cover    varchar2(200) default '/images/default.jpg' not null
);
 
comment on table bs_GOODS is '商品表';
comment on column bs_GOODS.ID is '商品编号';
comment on column bs_GOODS.NAME is '商品名称';
comment on column bs_GOODS.DESCRIBE is '商品描述';
comment on column bs_GOODS.PRICE is '商品价格';
comment on column bs_GOODS.stock is '商品库存';
comment on column bs_GOODS.cover is '商品封面';
 
select seq_goods.nextval from dual;
 
insert into bs_GOODS
values (seq_goods.nextval, '丝袜奶茶', '冰冰娘娘很好喝', 99, 100,'a');
insert into bs_GOODS
values (seq_goods.nextval, '啵啵奶茶', '冰冰娘娘很好喝', 99, 100,'a');
insert into bs_GOODS
values (seq_goods.nextval, '蜜雪大补丁', '冰冰娘娘很好喝', 99, 100,'a');
insert into bs_GOODS
values (seq_goods.nextval, '咖啡喜喜', '冰冰娘娘很好喝', 99, 100,'a');
insert into bs_GOODS
values (seq_goods.nextval, '雪王咖啡', '冰冰娘娘很好喝', 99, 100,'a');
insert into bs_GOODS
values (seq_goods.nextval, '拉稀d筒', '冰冰娘娘很好喝', 99, 100,'a');
insert into bs_GOODS
values (seq_goods.nextval, '草莓雪王大圣诞', '冰冰娘娘很好喝', 99, 100,'a');
insert into bs_GOODS
values (seq_goods.nextval, '草莓雪王大甜筒', '冰冰娘娘很好喝', 99, 100,'a');
insert into bs_GOODS
values (seq_goods.nextval, '草莓雪王大圣代', '冰冰娘娘很好喝', 99, 100,'a');

实体类： Goods.java


public class Goods {
 
	private Integer id;
    private String name;
    private String describe;
    private Integer price;
    private Integer stock;
    private String cover;
	public Integer getId() {
		return id;
	}
	public void setId(Integer id) {
		this.id = id;
	}
	public String getName() {
		return name;
	}
	public void setName(String name) {
		this.name = name;
	}
	public String getDescribe() {
		return describe;
	}
	public void setDescribe(String describe) {
		this.describe = describe;
	}
	public Integer getPrice() {
		return price;
	}
	public void setPrice(Integer price) {
		this.price = price;
	}
	public Integer getStock() {
		return stock;
	}
	public void setStock(Integer stock) {
		this.stock = stock;
	}
	public String getCover() {
		return cover;
	}
	public void setCover(String cover) {
		this.cover = cover;
	}
	public Goods() {
		super();
		// TODO Auto-generated constructor stub
	}
	public Goods(Integer id, String name, String describe, Integer price, Integer stock, String cover) {
		super();
		this.id = id;
		this.name = name;
		this.describe = describe;
		this.price = price;
		this.stock = stock;
		this.cover = cover;
	}
	@Override
	public String toString() {
		return "Goods [id=" + id + ", name=" + name + ", describe=" + describe + ", price=" + price + ", stock=" + stock
				+ ", cover=" + cover + "]";
	}
    
	
}

数据库访问层接口：IGoodsDao.java


public interface IGoodsDao {
 
	 List list(int page,int size);
 
	    public int total();
 
	
}

实现数据库访问层接口的类：GoodsDaoImpl.java


public class GoodsDaoImpl implements IGoodsDao{
 
	//定义资源
    private Connection con;
    private PreparedStatement ps;
    private ResultSet rs;
 
    @Override
    public int total() {
        try {
            con=DBHelper.getCon();
            ps=con.prepareStatement("select count(1) from bs_goods");
            rs= ps.executeQuery();
            if(rs.next()){
                return rs.getInt(1);
            }
        }catch (Exception e){
            e.printStackTrace();
        }finally {
            DBHelper.close(con,ps,rs);
        }
        return 0;
    }
 
    @Override
    public List list(int page, int size) {
        List list=new ArrayList<>();
        int begin=(page-1)*size+1;
        int end=page*size;
        try {
            con=DBHelper.getCon();
            ps=con.prepareStatement("select * from (" +
                    "    select a.*,ROWNUM rid from BS_GOODS a" +
                    ") temp where rid between ? and ?");
            ps.setInt(1,begin);
            ps.setInt(2,end);
            rs= ps.executeQuery();
            while(rs.next()){
                Goods goods=new Goods();
                goods.setId(rs.getInt(1));
                goods.setName(rs.getString(2));
                goods.setDescribe(rs.getString(3));
                goods.setPrice(rs.getInt(4));
                goods.setStock(rs.getInt(5));
                goods.setCover(rs.getString(6));
                list.add(goods);
            }
        }catch (Exception e){
            e.printStackTrace();
        }finally {
            DBHelper.close(con,ps,rs);
        }
        return list;
    }
	
}

业务逻辑层的接口：IGoodsBiz.java


public interface IGoodsBiz {
 
	 List list(int page, int size);
 
	    public int total();
	
}

实现业务逻辑层接口的类：GoodsBizImpl.java


public class GoodsBizImpl implements IGoodsBiz {
 
    private IGoodsDao goodsDao=new GoodsDaoImpl();
 
    @Override
    public List list(int page, int size) {
        return goodsDao.list(page, size);
    }
 
    @Override
    public int total() {
        return goodsDao.total();
    }
}

界面代码

<%@ page contentType="text/html;charset=UTF-8" language="java" %>


    
    Title
    
    
    
    
    
    



    
        商品编号
        商品名字
        商品描述
        商品价格
        商品库存
        商品封面
        商品 *** 作

表示层代码的编写：GoodsServlet.java


@WebServlet("/goods.do")
public class GoodsServlet extends HttpServlet{
 
	 private IGoodsBiz goodsBiz = new GoodsBizImpl();
	    private ObjectMapper mapper = new ObjectMapper();
 
	    @Override
	    protected void doGet(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
	        doPost(req, resp);
	    }
 
	    @Override
	    protected void doPost(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
	        //先拿到请求的页数和行数
	        int size = 3;
	        int page = 1;
	        String obj = req.getParameter("page");
	        if (obj != null) {
	            page = Integer.parseInt(obj);
	        }
	        //拿到数据库的数据
	        List list = goodsBiz.list(page, size);
	        //拿到数据库的总条数
	        int total = goodsBiz.total();
	        //根据size计算最大的页数
	        total = (int) Math.ceil(total * 1.0 / size);
	        //封装Vo对象
	        GoodsVo gv = new GoodsVo(list, total);
	        //通过响应丢出去
	        resp.setCharacterEncoding("utf-8");
	        PrintWriter out = resp.getWriter();
	        out.println(mapper.writeValueAsString(gv));
	    }
 
	
}

案例就分享到这啦！感谢观看

欢迎分享，转载请注明来源：内存溢出

原文地址: http://outofmemory.cn/langs/796000.html

Ajax的实例以及bootstrap的使用

发表评论

评论列表（0条）