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目录
一.项目结构图：
二.项目内容
pom.xml
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>com.xwl</groupId>
<artifactId>divPage</artifactId>
<version>0.0.1-SNAPSHOT</version>
<dependencies>
<!-- pagehelper -->
<dependency>
<groupId>com.github.pagehelper</groupId>
<artifactId>pagehelper</artifactId>
<version>5.1.4</version>
</dependency>
<!-- jutil -->
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>3.8.1</version>
<scope>test</scope>
</dependency>
<!-- mybatis -->
<dependency>
<groupId>org.mybatis</groupId>
<artifactId>mybatis</artifactId>
<version>3.2.8</version>
</dependency>
<!-- mysql-connector-java -->
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
<version>5.1.18</version>
</dependency>
</dependencies>
</project>mybatis-config.xml
<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE configuration
PUBLIC "-//mybatis.org//DTD Config 3.0//EN"
"http://mybatis.org/dtd/mybatis-3-config.dtd">
<configuration>
<properties resource="db.properties" />
<plugins>
<!-- com.github.pagehelper为PageHelper类所在包名 -->
<plugin interceptor="com.github.pagehelper.PageInterceptor">
<!--分页合理化参数，默认值为false
pageNum<=0 时会查询第一页，
pageNum>pages（超过总数时），会查询最后一页。 -->
<property name="reasonable" value="true" />
</plugin>
<environments default="development">
<environment id="development">
<transactionManager type="JDBC" />
<dataSource type="POOLED">
<property name="driver" value="${driverClass}" />
<property name="url" value="${url}" />
<property name="username" value="${username}" />
<property name="password" value="${password}" />
</dataSource>
</environment>
</environments>
<mappers>
<mapper resource="pageMapper.xml" />
</mappers>
</configuration>db.properties
driverClass=com.mysql.jdbc.Driver
url=jdbc:mysql://localhost:3306/test?useUnicode=true&characterEncoding=UTF-8
username=root
password=123456pageMapper.xml
<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE mapper
PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN"
"http://mybatis.org/dtd/mybatis-3-mapper.dtd">
<mapper namespace="com.bd.dao.CountryDao">
<select id="selectpro" resultType="com.bd.domain.Country">
select * from country
</select>
</mapper>Country.java（实体类）
package com.bd.domain;
public class Country {
private int id;
private String countryname;
private String countrycode;
@Override
public String toString() {
return "Country [id=" + id + ", countryname=" + countryname + ", countrycode=" + countrycode + "]";
}
public int getId() {
return id;
}
public void setId(int id) {
this.id = id;
}
public String getCountryname() {
return countryname;
}
public void setCountryname(String countryname) {
this.countryname = countryname;
}
public String getCountrycode() {
return countrycode;
}
public void setCountrycode(String countrycode) {
this.countrycode = countrycode;
}
}
CountryDao（DAO层，定义访问数据库的方法）
package com.bd.dao;
import java.util.List;
import com.bd.domain.Country;
public interface CountryDao {
public List<Country> selectpro();
}
TestPage.java（测试代码）
package com.bd.test;
import java.io.IOException;
import java.io.InputStream;
import java.util.List;
import org.apache.ibatis.io.Resources;
import org.apache.ibatis.session.SqlSession;
import org.apache.ibatis.session.SqlSessionFactory;
import org.apache.ibatis.session.SqlSessionFactoryBuilder;
import com.bd.dao.CountryDao;
import com.bd.domain.Country;
import com.github.pagehelper.PageHelper;
import junit.framework.TestCase;
public class TestPage extends TestCase {
CountryDao countryDao;
SqlSession session;
{
String resource = "mybatis-config.xml";
InputStream inputStream;
try {
inputStream = Resources.getResourceAsStream(resource);
SqlSessionFactory sqlSessionFactory = new SqlSessionFactoryBuilder().build(inputStream);
session = sqlSessionFactory.openSession();
countryDao=session.getMapper(CountryDao.class);
} catch (IOException e) {
e.printStackTrace();
}
}
//通过id获取商品信息
public void testGetProductByid() {
PageHelper.startPage(5,10);
List<Country> list=countryDao.selectpro();
for (Country product : list) {
System.out.println(product);
}
}
}
打印结果：
SSM中的应用
package com.bd.controller;
import java.util.List;
import javax.servlet.http.HttpServletRequest;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.servlet.ModelAndView;
import com.bd.pojo.User;
import com.bd.service.UserService;
import com.github.pagehelper.PageHelper;
import com.github.pagehelper.PageInfo;
@Controller
public class UserController {
@Autowired
UserService userService;
@RequestMapping("/user")
public ModelAndView getUser(HttpServletRequest request) {
//从前端获取当前的页数
int page=Integer.parseInt(request.getParameter("page"));
//对数据库中的数据进行分页处理
PageHelper.startPage(page, 3);
List<User> users=userService.getAllUser(page);
//获取总页数
PageInfo<User> pageInfo=new PageInfo<User>(users);
int total=(int) (pageInfo.getTotal()/3+1);
//控制前端页数显示范围
if(page<1) page=1;
else if(page>total) page=total;
//返回数据给前端页面
ModelAndView mv=new ModelAndView("users");
mv.addObject("users", users);
mv.addObject("page",page);
mv.addObject("total",total);
return mv;
}
}
三.SQL语句参考：
# MySQL-Front 5.0 (Build 1.133)
/*!40101 SET @OLD_SQL_MODE=@@SQL_MODE */;
/*!40101 SET SQL_MODE='STRICT_TRANS_TABLES,NO_AUTO_CREATE_USER,NO_ENGINE_SUBSTITUTION' */;
/*!40111 SET @OLD_SQL_NOTES=@@SQL_NOTES */;
/*!40103 SET SQL_NOTES='ON' */;
/*!40014 SET @OLD_UNIQUE_CHECKS=@@UNIQUE_CHECKS */;
/*!40014 SET UNIQUE_CHECKS=0 */;
/*!40014 SET @OLD_FOREIGN_KEY_CHECKS=@@FOREIGN_KEY_CHECKS */;
/*!40014 SET FOREIGN_KEY_CHECKS=0 */;
# Host: localhost Database: test
# ------------------------------------------------------
# Server version 5.1.54-community
USE `test`;
#
# Table structure for table country
#
DROP TABLE IF EXISTS `country`;
CREATE TABLE `country` (
`Id` int(11) NOT NULL AUTO_INCREMENT COMMENT '主键',
`countryname` varchar(255) DEFAULT NULL COMMENT '名称',
`countrycode` varchar(255) DEFAULT NULL COMMENT '代码',
PRIMARY KEY (`Id`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8 COMMENT='国家信息';
#
# Dumping data for table country
#
LOCK TABLES `country` WRITE;
/*!40000 ALTER TABLE `country` DISABLE KEYS */;
INSERT INTO `country` VALUES (1,'Angola','AO');
INSERT INTO `country` VALUES (2,'Afghanistan','AF');
INSERT INTO `country` VALUES (3,'Albania','AL');
INSERT INTO `country` VALUES (4,'Algeria','DZ');
INSERT INTO `country` VALUES (5,'Andorra','AD');
INSERT INTO `country` VALUES (6,'Anguilla','AI');
INSERT INTO `country` VALUES (7,'Antigua and Barbuda','AG');
INSERT INTO `country` VALUES (8,'Argentina','AR');
INSERT INTO `country` VALUES (9,'Armenia','AM');
INSERT INTO `country` VALUES (10,'Australia','AU');
INSERT INTO `country` VALUES (11,'Austria','AT');
INSERT INTO `country` VALUES (12,'Azerbaijan','AZ');
INSERT INTO `country` VALUES (13,'Bahamas','BS');
INSERT INTO `country` VALUES (14,'Bahrain','BH');
INSERT INTO `country` VALUES (15,'Bangladesh','BD');
INSERT INTO `country` VALUES (16,'Barbados','BB');
INSERT INTO `country` VALUES (17,'Belarus','BY');
INSERT INTO `country` VALUES (18,'Belgium','BE');
INSERT INTO `country` VALUES (19,'Belize','BZ');
INSERT INTO `country` VALUES (20,'Benin','BJ');
INSERT INTO `country` VALUES (21,'Bermuda Is.','BM');
INSERT INTO `country` VALUES (22,'Bolivia','BO');
INSERT INTO `country` VALUES (23,'Botswana','BW');
INSERT INTO `country` VALUES (24,'Brazil','BR');
INSERT INTO `country` VALUES (25,'Brunei','BN');
INSERT INTO `country` VALUES (26,'Bulgaria','BG');
INSERT INTO `country` VALUES (27,'Burkina-faso','BF');
INSERT INTO `country` VALUES (28,'Burma','MM');
INSERT INTO `country` VALUES (29,'Burundi','BI');
INSERT INTO `country` VALUES (30,'Cameroon','CM');
INSERT INTO `country` VALUES (31,'Canada','CA');
INSERT INTO `country` VALUES (32,'Central African Republic','CF');
INSERT INTO `country` VALUES (33,'Chad','TD');
INSERT INTO `country` VALUES (34,'Chile','CL');
INSERT INTO `country` VALUES (35,'China','CN');
INSERT INTO `country` VALUES (36,'Colombia','CO');
INSERT INTO `country` VALUES (37,'Congo','CG');
INSERT INTO `country` VALUES (38,'Cook Is.','CK');
INSERT INTO `country` VALUES (39,'Costa Rica','CR');
INSERT INTO `country` VALUES (40,'Cuba','CU');
INSERT INTO `country` VALUES (41,'Cyprus','CY');
INSERT INTO `country` VALUES (42,'Czech Republic','CZ');
INSERT INTO `country` VALUES (43,'Denmark','DK');
INSERT INTO `country` VALUES (44,'Djibouti','DJ');
INSERT INTO `country` VALUES (45,'Dominica Rep.','DO');
INSERT INTO `country` VALUES (46,'Ecuador','EC');
INSERT INTO `country` VALUES (47,'Egypt','EG');
INSERT INTO `country` VALUES (48,'EI Salvador','SV');
INSERT INTO `country` VALUES (49,'Estonia','EE');
INSERT INTO `country` VALUES (50,'Ethiopia','ET');
INSERT INTO `country` VALUES (51,'Fiji','FJ');
INSERT INTO `country` VALUES (52,'Finland','FI');
INSERT INTO `country` VALUES (53,'France','FR');
INSERT INTO `country` VALUES (54,'French Guiana','GF');
INSERT INTO `country` VALUES (55,'Gabon','GA');
INSERT INTO `country` VALUES (56,'Gambia','GM');
INSERT INTO `country` VALUES (57,'Georgia','GE');
INSERT INTO `country` VALUES (58,'Germany','DE');
INSERT INTO `country` VALUES (59,'Ghana','GH');
INSERT INTO `country` VALUES (60,'Gibraltar','GI');
INSERT INTO `country` VALUES (61,'Greece','GR');
INSERT INTO `country` VALUES (62,'Grenada','GD');
INSERT INTO `country` VALUES (63,'Guam','GU');
INSERT INTO `country` VALUES (64,'Guatemala','GT');
INSERT INTO `country` VALUES (65,'Guinea','GN');
INSERT INTO `country` VALUES (66,'Guyana','GY');
INSERT INTO `country` VALUES (67,'Haiti','HT');
INSERT INTO `country` VALUES (68,'Honduras','HN');
INSERT INTO `country` VALUES (69,'Hongkong','HK');
INSERT INTO `country` VALUES (70,'Hungary','HU');
INSERT INTO `country` VALUES (71,'Iceland','IS');
INSERT INTO `country` VALUES (72,'India','IN');
INSERT INTO `country` VALUES (73,'Indonesia','ID');
INSERT INTO `country` VALUES (74,'Iran','IR');
INSERT INTO `country` VALUES (75,'Iraq','IQ');
INSERT INTO `country` VALUES (76,'Ireland','IE');
INSERT INTO `country` VALUES (77,'Israel','IL');
INSERT INTO `country` VALUES (78,'Italy','IT');
INSERT INTO `country` VALUES (79,'Jamaica','JM');
INSERT INTO `country` VALUES (80,'Japan','JP');
INSERT INTO `country` VALUES (81,'Jordan','JO');
INSERT INTO `country` VALUES (82,'Kampuchea (Cambodia )','KH');
INSERT INTO `country` VALUES (83,'Kazakstan','KZ');
INSERT INTO `country` VALUES (84,'Kenya','KE');
INSERT INTO `country` VALUES (85,'Korea','KR');
INSERT INTO `country` VALUES (86,'Kuwait','KW');
INSERT INTO `country` VALUES (87,'Kyrgyzstan','KG');
INSERT INTO `country` VALUES (88,'Laos','LA');
INSERT INTO `country` VALUES (89,'Latvia','LV');
INSERT INTO `country` VALUES (90,'Lebanon','LB');
INSERT INTO `country` VALUES (91,'Lesotho','LS');
INSERT INTO `country` VALUES (92,'Liberia','LR');
INSERT INTO `country` VALUES (93,'Libya','LY');
INSERT INTO `country` VALUES (94,'Liechtenstein','LI');
INSERT INTO `country` VALUES (95,'Lithuania','LT');
INSERT INTO `country` VALUES (96,'Luxembourg','LU');
INSERT INTO `country` VALUES (97,'Macao','MO');
INSERT INTO `country` VALUES (98,'Madagascar','MG');
INSERT INTO `country` VALUES (99,'Malawi','MW');
INSERT INTO `country` VALUES (100,'Malaysia','MY');
INSERT INTO `country` VALUES (101,'Maldives','MV');
INSERT INTO `country` VALUES (102,'Mali','ML');
INSERT INTO `country` VALUES (103,'Malta','MT');
INSERT INTO `country` VALUES (104,'Mauritius','MU');
INSERT INTO `country` VALUES (105,'Mexico','MX');
INSERT INTO `country` VALUES (106,'Moldova, Republic of','MD');
INSERT INTO `country` VALUES (107,'Monaco','MC');
INSERT INTO `country` VALUES (108,'Mongolia','MN');
INSERT INTO `country` VALUES (109,'Montserrat Is','MS');
INSERT INTO `country` VALUES (110,'Morocco','MA');
INSERT INTO `country` VALUES (111,'Mozambique','MZ');
INSERT INTO `country` VALUES (112,'Namibia','NA');
INSERT INTO `country` VALUES (113,'Nauru','NR');
INSERT INTO `country` VALUES (114,'Nepal','NP');
INSERT INTO `country` VALUES (115,'Netherlands','NL');
INSERT INTO `country` VALUES (116,'New Zealand','NZ');
INSERT INTO `country` VALUES (117,'Nicaragua','NI');
INSERT INTO `country` VALUES (118,'Niger','NE');
INSERT INTO `country` VALUES (119,'Nigeria','NG');
INSERT INTO `country` VALUES (120,'North Korea','KP');
INSERT INTO `country` VALUES (121,'Norway','NO');
INSERT INTO `country` VALUES (122,'Oman','OM');
INSERT INTO `country` VALUES (123,'Pakistan','PK');
INSERT INTO `country` VALUES (124,'Panama','PA');
INSERT INTO `country` VALUES (125,'Papua New Cuinea','PG');
INSERT INTO `country` VALUES (126,'Paraguay','PY');
INSERT INTO `country` VALUES (127,'Peru','PE');
INSERT INTO `country` VALUES (128,'Philippines','PH');
INSERT INTO `country` VALUES (129,'Poland','PL');
INSERT INTO `country` VALUES (130,'French Polynesia','PF');
INSERT INTO `country` VALUES (131,'Portugal','PT');
INSERT INTO `country` VALUES (132,'Puerto Rico','PR');
INSERT INTO `country` VALUES (133,'Qatar','QA');
INSERT INTO `country` VALUES (134,'Romania','RO');
INSERT INTO `country` VALUES (135,'Russia','RU');
INSERT INTO `country` VALUES (136,'Saint Lueia','LC');
INSERT INTO `country` VALUES (137,'Saint Vincent','VC');
INSERT INTO `country` VALUES (138,'San Marino','SM');
INSERT INTO `country` VALUES (139,'Sao Tome and Principe','ST');
INSERT INTO `country` VALUES (140,'Saudi Arabia','SA');
INSERT INTO `country` VALUES (141,'Senegal','SN');
INSERT INTO `country` VALUES (142,'Seychelles','SC');
INSERT INTO `country` VALUES (143,'Sierra Leone','SL');
INSERT INTO `country` VALUES (144,'Singapore','SG');
INSERT INTO `country` VALUES (145,'Slovakia','SK');
INSERT INTO `country` VALUES (146,'Slovenia','SI');
INSERT INTO `country` VALUES (147,'Solomon Is','SB');
INSERT INTO `country` VALUES (148,'Somali','SO');
INSERT INTO `country` VALUES (149,'South Africa','ZA');
INSERT INTO `country` VALUES (150,'Spain','ES');
INSERT INTO `country` VALUES (151,'Sri Lanka','LK');
INSERT INTO `country` VALUES (152,'St.Lucia','LC');
INSERT INTO `country` VALUES (153,'St.Vincent','VC');
INSERT INTO `country` VALUES (154,'Sudan','SD');
INSERT INTO `country` VALUES (155,'Suriname','SR');
INSERT INTO `country` VALUES (156,'Swaziland','SZ');
INSERT INTO `country` VALUES (157,'Sweden','SE');
INSERT INTO `country` VALUES (158,'Switzerland','CH');
INSERT INTO `country` VALUES (159,'Syria','SY');
INSERT INTO `country` VALUES (160,'Taiwan','TW');
INSERT INTO `country` VALUES (161,'Tajikstan','TJ');
INSERT INTO `country` VALUES (162,'Tanzania','TZ');
INSERT INTO `country` VALUES (163,'Thailand','TH');
INSERT INTO `country` VALUES (164,'Togo','TG');
INSERT INTO `country` VALUES (165,'Tonga','TO');
INSERT INTO `country` VALUES (166,'Trinidad and Tobago','TT');
INSERT INTO `country` VALUES (167,'Tunisia','TN');
INSERT INTO `country` VALUES (168,'Turkey','TR');
INSERT INTO `country` VALUES (169,'Turkmenistan','TM');
INSERT INTO `country` VALUES (170,'Uganda','UG');
INSERT INTO `country` VALUES (171,'Ukraine','UA');
INSERT INTO `country` VALUES (172,'United Arab Emirates','AE');
INSERT INTO `country` VALUES (173,'United Kiongdom','GB');
INSERT INTO `country` VALUES (174,'United States of America','US');
INSERT INTO `country` VALUES (175,'Uruguay','UY');
INSERT INTO `country` VALUES (176,'Uzbekistan','UZ');
INSERT INTO `country` VALUES (177,'Venezuela','VE');
INSERT INTO `country` VALUES (178,'Vietnam','VN');
INSERT INTO `country` VALUES (179,'Yemen','YE');
INSERT INTO `country` VALUES (180,'Yugoslavia','YU');
INSERT INTO `country` VALUES (181,'Zimbabwe','ZW');
INSERT INTO `country` VALUES (182,'Zaire','ZR');
INSERT INTO `country` VALUES (183,'Zambia','ZM');
/*!40000 ALTER TABLE `country` ENABLE KEYS */;
UNLOCK TABLES;
#
# Table structure for table user login info
#
DROP TABLE IF EXISTS `user login info`;
CREATE TABLE `user login info` (
`Id` int(11) NOT NULL AUTO_INCREMENT,
`username` varchar(32) NOT NULL DEFAULT '' COMMENT '登录名',
`logindate` datetime DEFAULT NULL COMMENT '登录时间',
`loginip` varchar(16) DEFAULT NULL COMMENT '登录IP',
PRIMARY KEY (`Id`,`username`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8 COMMENT='用户登录日志';
#
# Dumping data for table user login info
#
LOCK TABLES `user login info` WRITE;
/*!40000 ALTER TABLE `user login info` DISABLE KEYS */;
/*!40000 ALTER TABLE `user login info` ENABLE KEYS */;
UNLOCK TABLES;
#
# Table structure for table user_info
#
DROP TABLE IF EXISTS `user_info`;
CREATE TABLE `user_info` (
`Id` int(11) NOT NULL AUTO_INCREMENT,
`username` varchar(32) NOT NULL DEFAULT '' COMMENT '用户名',
`password` varchar(32) DEFAULT NULL COMMENT '密码',
`usertype` varchar(2) DEFAULT NULL COMMENT '用户类型',
`enabled` int(2) DEFAULT NULL COMMENT '是否可用',
`realname` varchar(32) DEFAULT NULL COMMENT '真实姓名',
`qq` varchar(14) DEFAULT NULL COMMENT 'QQ',
`email` varchar(100) DEFAULT NULL,
`tel` varchar(255) DEFAULT NULL COMMENT '联系电话',
PRIMARY KEY (`Id`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8 COMMENT='用户信息表';
#
# Dumping data for table user_info
#
LOCK TABLES `user_info` WRITE;
/*!40000 ALTER TABLE `user_info` DISABLE KEYS */;
/*!40000 ALTER TABLE `user_info` ENABLE KEYS */;
UNLOCK TABLES;
/*!40014 SET FOREIGN_KEY_CHECKS=@OLD_FOREIGN_KEY_CHECKS */;
/*!40014 SET UNIQUE_CHECKS=@OLD_UNIQUE_CHECKS */;
/*!40111 SET SQL_NOTES=@OLD_SQL_NOTES */;
/*!40101 SET SQL_MODE=@OLD_SQL_MODE */;