1.Mybatis所需包

下载地址:https://github.com/mybatis/mybatis-3/releases,其中log4j是日志包,mysql是数据库所需包,需自行下载

2.项目结构

3.mybatis-config.xml配置文件

 <?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"> <!-- 通过这个配置文件完成mybatis与数据库的连接 -->
<configuration><!-- configuration 中的元素,不但有类型限制,也有顺序限制 -->
<!-- 引入 database.properties 文件-->
<properties resource="database.properties"/> <!-- 配置mybatis的log实现为LOG4J -->
<settings>
<setting name="logImpl" value="LOG4J" />
</settings> <typeAliases>
<typeAlias type="com.wt.pojo.User" alias="Person"/><!-- 自定义别名 -->
</typeAliases> <environments default="development"><!--定义默认使用的数据源 -->
<environment id="development"><!--配置id为development的数据源 -->
<!--配置事务管理,采用JDBC的事务管理 -->
<transactionManager type="JDBC"></transactionManager>
<!-- POOLED:mybatis自带的数据源,JNDI:基于tomcat的数据源 -->
<dataSource type="POOLED"> <!-- 定义数据源使用数据库连接池 type=UNPOOLED表示不使用数据库连接池 -->
<property name="driver" value="${driver}"/>
<property name="url" value="${url}"/>
<property name="username" value="${user}"/>
<property name="password" value="${password}"/>
</dataSource>
</environment>
</environments> <!-- 将mapper映射器文件加入到配置文件中 -->
<mappers>
<mapper resource="com/wt/dao/UserMapper.xml"/>
</mappers> </configuration>

4.UserMapper.xml映射器文件(sql语句写在这里,都有注释)

 <?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">
<!-- 映射器 -->
<mapper namespace="com.wt.dao.UserMapper"><!-- 定义命名空间 --> <!-- 查询用户表记录数 -->
<select id="count" resultType="int">
select count(1) as count from
smbms_user
</select> <!-- 查询用户列表 -->
<select id="getUserList" resultType="com.wt.pojo.User">
select * from smbms_user
</select> <!-- 查询用户名 -->
<select id="getUser" resultType="com.wt.pojo.User"><!-- resultType方法返回的类型 -->
select userName from smbms_user
</select> <!-- 插入数据 -->
<!-- useGeneratedKeys="true"自增主键回填 keyProperty="id" 定义id为主键字段 -->
<!-- parameterType="Person"引用了配置文件自定义命名 Person -->
<insert id="addUser" parameterType="Person" useGeneratedKeys="true"
keyProperty="id">
insert into smbms_user
values(null,#{userCode},#{userName},
#{userPassword},#{gender},#{birthday},#{phone},#{address},
#{userRole},#{createdBy},#{creationDate},#{modifyBy},#{modifyDate})
</insert> <!-- 根据id更新数据 -->
<update id="updateUser" parameterType="com.wt.pojo.User"><!-- parameterType 方法参数类型 多个值参数传map -->
update smbms_user set
userCode=#{userCode},userName=#{userName},userPassword=#{userPassword}
where id=#{id}
</update> <!-- 根据id删除数据 -->
<delete id="deleteUser" parameterType="int">
delete from smbms_user
where id=#{id}
</delete> <!-- 模糊查询 -->
<select id="findUserByUsername" parameterType="String"
resultType="Person">
<!-- select * from smbms_user where userName like '%${userName}%' -->
select * from smbms_user where userName like CONCAT
('%',#{userName},'%')
<!-- select * from smbms_user where userName like "%"#{userName}"%" -->
</select> </mapper>

 5.数据库代码(几个表,这里只测试用户表)

 /*
SQLyog 企业版 - MySQL GUI v8.14
MySQL - 5.5.40 : Database - smbms
*********************************************************************
*/ /*!40101 SET NAMES utf8 */; /*!40101 SET SQL_MODE=''*/; /*!40014 SET @OLD_UNIQUE_CHECKS=@@UNIQUE_CHECKS, UNIQUE_CHECKS=0 */;
/*!40014 SET @OLD_FOREIGN_KEY_CHECKS=@@FOREIGN_KEY_CHECKS, FOREIGN_KEY_CHECKS=0 */;
/*!40101 SET @OLD_SQL_MODE=@@SQL_MODE, SQL_MODE='NO_AUTO_VALUE_ON_ZERO' */;
/*!40111 SET @OLD_SQL_NOTES=@@SQL_NOTES, SQL_NOTES=0 */;
CREATE DATABASE /*!32312 IF NOT EXISTS*/`smbms` /*!40100 DEFAULT CHARACTER SET utf8 COLLATE utf8_unicode_ci */; USE `smbms`; /*Table structure for table `smbms_address` */ DROP TABLE IF EXISTS `smbms_address`; CREATE TABLE `smbms_address` (
`id` bigint(20) NOT NULL AUTO_INCREMENT COMMENT '主键ID',
`contact` varchar(15) COLLATE utf8_unicode_ci DEFAULT NULL COMMENT '联系人姓名',
`addressDesc` varchar(50) COLLATE utf8_unicode_ci DEFAULT NULL COMMENT '收货地址明细',
`postCode` varchar(15) COLLATE utf8_unicode_ci DEFAULT NULL COMMENT '邮编',
`tel` varchar(20) COLLATE utf8_unicode_ci DEFAULT NULL COMMENT '联系人电话',
`createdBy` bigint(20) DEFAULT NULL COMMENT '创建者',
`creationDate` datetime DEFAULT NULL COMMENT '创建时间',
`modifyBy` bigint(20) DEFAULT NULL COMMENT '修改者',
`modifyDate` datetime DEFAULT NULL COMMENT '修改时间',
`userId` bigint(20) DEFAULT NULL COMMENT '用户ID',
PRIMARY KEY (`id`)
) ENGINE=InnoDB AUTO_INCREMENT=7 DEFAULT CHARSET=utf8 COLLATE=utf8_unicode_ci; /*Data for the table `smbms_address` */ insert into `smbms_address`(`id`,`contact`,`addressDesc`,`postCode`,`tel`,`createdBy`,`creationDate`,`modifyBy`,`modifyDate`,`userId`) values (1,'王丽','北京市东城区东交民巷44号','','',1,'2016-04-13 00:00:00',NULL,NULL,1),(2,'张红丽','北京市海淀区丹棱街3号','','',1,'2016-04-13 00:00:00',NULL,NULL,1),(3,'任志强','北京市东城区美术馆后街23号','','',1,'2016-04-13 00:00:00',NULL,NULL,1),(4,'曹颖','北京市朝阳区朝阳门南大街14号','','',1,'2016-04-13 00:00:00',NULL,NULL,2),(5,'李慧','北京市西城区三里河路南三巷3号','','',1,'2016-04-13 00:00:00',NULL,NULL,3),(6,'王国强','北京市顺义区高丽营镇金马工业区18号','','',1,'2016-04-13 00:00:00',NULL,NULL,3); /*Table structure for table `smbms_bill` */ DROP TABLE IF EXISTS `smbms_bill`; CREATE TABLE `smbms_bill` (
`id` bigint(20) NOT NULL AUTO_INCREMENT COMMENT '主键ID',
`billCode` varchar(20) COLLATE utf8_unicode_ci DEFAULT NULL COMMENT '账单编码',
`productName` varchar(20) COLLATE utf8_unicode_ci DEFAULT NULL COMMENT '商品名称',
`productDesc` varchar(50) COLLATE utf8_unicode_ci DEFAULT NULL COMMENT '商品描述',
`productUnit` varchar(10) COLLATE utf8_unicode_ci DEFAULT NULL COMMENT '商品单位',
`productCount` decimal(20,2) DEFAULT NULL COMMENT '商品数量',
`totalPrice` decimal(20,2) DEFAULT NULL COMMENT '商品总额',
`isPayment` int(10) DEFAULT NULL COMMENT '是否支付(1:未支付 2:已支付)',
`createdBy` bigint(20) DEFAULT NULL COMMENT '创建者(userId)',
`creationDate` datetime DEFAULT NULL COMMENT '创建时间',
`modifyBy` bigint(20) DEFAULT NULL COMMENT '更新者(userId)',
`modifyDate` datetime DEFAULT NULL COMMENT '更新时间',
`providerId` bigint(20) DEFAULT NULL COMMENT '供应商ID',
PRIMARY KEY (`id`)
) ENGINE=InnoDB AUTO_INCREMENT=19 DEFAULT CHARSET=utf8 COLLATE=utf8_unicode_ci; /*Data for the table `smbms_bill` */ insert into `smbms_bill`(`id`,`billCode`,`productName`,`productDesc`,`productUnit`,`productCount`,`totalPrice`,`isPayment`,`createdBy`,`creationDate`,`modifyBy`,`modifyDate`,`providerId`) values (1,'BILL2016_001','洗发水、护发素','日用品-洗发、护发','瓶','500.00','25000.00',2,1,'2014-12-14 13:02:03',NULL,NULL,13),(2,'BILL2016_002','香皂、肥皂、药皂','日用品-皂类','块','1000.00','10000.00',2,1,'2016-03-23 04:20:40',NULL,NULL,13),(3,'BILL2016_003','大豆油','食品-食用油','斤','300.00','5890.00',2,1,'2014-12-14 13:02:03',NULL,NULL,6),(4,'BILL2016_004','橄榄油','食品-进口食用油','斤','200.00','9800.00',2,1,'2013-10-10 03:12:13',NULL,NULL,7),(5,'BILL2016_005','洗洁精','日用品-厨房清洁','瓶','500.00','7000.00',2,1,'2014-12-14 13:02:03',NULL,NULL,9),(6,'BILL2016_006','美国大杏仁','食品-坚果','袋','300.00','5000.00',2,1,'2016-04-14 06:08:09',NULL,NULL,4),(7,'BILL2016_007','沐浴液、精油','日用品-沐浴类','瓶','500.00','23000.00',1,1,'2016-07-22 10:10:22',NULL,NULL,14),(8,'BILL2016_008','不锈钢盘碗','日用品-厨房用具','个','600.00','6000.00',2,1,'2016-04-14 05:12:13',NULL,NULL,14),(9,'BILL2016_009','塑料杯','日用品-杯子','个','350.00','1750.00',2,1,'2016-02-04 11:40:20',NULL,NULL,14),(10,'BILL2016_010','豆瓣酱','食品-调料','瓶','200.00','2000.00',2,1,'2013-10-29 05:07:03',NULL,NULL,8),(11,'BILL2016_011','海之蓝','饮料-国酒','瓶','50.00','10000.00',1,1,'2016-04-14 16:16:00',NULL,NULL,1),(12,'BILL2016_012','芝华士','饮料-洋酒','瓶','20.00','6000.00',1,1,'2016-09-09 17:00:00',NULL,NULL,1),(13,'BILL2016_013','长城红葡萄酒','饮料-红酒','瓶','60.00','800.00',2,1,'2016-11-14 15:23:00',NULL,NULL,1),(14,'BILL2016_014','泰国香米','食品-大米','斤','400.00','5000.00',2,1,'2016-10-09 15:20:00',NULL,NULL,3),(15,'BILL2016_015','东北大米','食品-大米','斤','600.00','4000.00',2,1,'2016-11-14 14:00:00',NULL,NULL,3),(16,'BILL2016_016','可口可乐','饮料','瓶','2000.00','6000.00',2,1,'2012-03-27 13:03:01',NULL,NULL,2),(17,'BILL2016_017','脉动','饮料','瓶','1500.00','4500.00',2,1,'2016-05-10 12:00:00',NULL,NULL,2),(18,'BILL2016_018','哇哈哈','饮料','瓶','2000.00','4000.00',2,1,'2015-11-24 15:12:03',NULL,NULL,2); /*Table structure for table `smbms_provider` */ DROP TABLE IF EXISTS `smbms_provider`; CREATE TABLE `smbms_provider` (
`id` bigint(20) NOT NULL AUTO_INCREMENT COMMENT '主键ID',
`proCode` varchar(20) COLLATE utf8_unicode_ci DEFAULT NULL COMMENT '供应商编码',
`proName` varchar(20) COLLATE utf8_unicode_ci DEFAULT NULL COMMENT '供应商名称',
`proDesc` varchar(50) COLLATE utf8_unicode_ci DEFAULT NULL COMMENT '供应商详细描述',
`proContact` varchar(20) COLLATE utf8_unicode_ci DEFAULT NULL COMMENT '供应商联系人',
`proPhone` varchar(20) COLLATE utf8_unicode_ci DEFAULT NULL COMMENT '联系电话',
`proAddress` varchar(50) COLLATE utf8_unicode_ci DEFAULT NULL COMMENT '地址',
`proFax` varchar(20) COLLATE utf8_unicode_ci DEFAULT NULL COMMENT '传真',
`createdBy` bigint(20) DEFAULT NULL COMMENT '创建者(userId)',
`creationDate` datetime DEFAULT NULL COMMENT '创建时间',
`modifyDate` datetime DEFAULT NULL COMMENT '更新时间',
`modifyBy` bigint(20) DEFAULT NULL COMMENT '更新者(userId)',
PRIMARY KEY (`id`)
) ENGINE=InnoDB AUTO_INCREMENT=16 DEFAULT CHARSET=utf8 COLLATE=utf8_unicode_ci; /*Data for the table `smbms_provider` */ insert into `smbms_provider`(`id`,`proCode`,`proName`,`proDesc`,`proContact`,`proPhone`,`proAddress`,`proFax`,`createdBy`,`creationDate`,`modifyDate`,`modifyBy`) values (1,'BJ_GYS001','北京三木堂商贸有限公司','长期合作伙伴,主营产品:茅台、五粮液、郎酒、酒鬼酒、泸州老窖、赖茅酒、法国红酒等','张国强','','北京市丰台区育芳园北路','010-58858787',1,'2013-03-21 16:52:07',NULL,NULL),(2,'HB_GYS001','石家庄帅益食品贸易有限公司','长期合作伙伴,主营产品:饮料、水饮料、植物蛋白饮料、休闲食品、果汁饮料、功能饮料等','王军','','河北省石家庄新华区','0311-67738876',1,'2016-04-13 04:20:40',NULL,NULL),(3,'GZ_GYS001','深圳市泰香米业有限公司','初次合作伙伴,主营产品:良记金轮米,龙轮香米等','郑程瀚','','广东省深圳市福田区深南大道6006华丰大厦','0755-67776212',1,'2014-03-21 16:56:07',NULL,NULL),(4,'GZ_GYS002','深圳市喜来客商贸有限公司','长期合作伙伴,主营产品:坚果炒货.果脯蜜饯.天然花茶.营养豆豆.特色美食.进口食品.海味零食.肉脯肉','林妮','','广东省深圳市福龙工业区B2栋3楼西','0755-67772341',1,'2013-03-22 16:52:07',NULL,NULL),(5,'JS_GYS001','兴化佳美调味品厂','长期合作伙伴,主营产品:天然香辛料、鸡精、复合调味料','徐国洋','','江苏省兴化市林湖工业区','0523-21299098',1,'2015-11-22 16:52:07',NULL,NULL),(6,'BJ_GYS002','北京纳福尔食用油有限公司','长期合作伙伴,主营产品:山茶油、大豆油、花生油、橄榄油等','马莺','','北京市朝阳区珠江帝景1号楼','010-588634233',1,'2012-03-21 17:52:07',NULL,NULL),(7,'BJ_GYS003','北京国粮食用油有限公司','初次合作伙伴,主营产品:花生油、大豆油、小磨油等','王驰','','北京大兴青云店开发区','010-588134111',1,'2016-04-13 00:00:00',NULL,NULL),(8,'ZJ_GYS001','慈溪市广和绿色食品厂','长期合作伙伴,主营产品:豆瓣酱、黄豆酱、甜面酱,辣椒,大蒜等农产品','薛圣丹','','浙江省宁波市慈溪周巷小安村','0574-34449090',1,'2013-11-21 06:02:07',NULL,NULL),(9,'GX_GYS001','优百商贸有限公司','长期合作伙伴,主营产品:日化产品','李立国','','广西南宁市秀厢大道42-1号','0771-98861134',1,'2013-03-21 19:52:07',NULL,NULL),(10,'JS_GYS002','南京火头军信息技术有限公司','长期合作伙伴,主营产品:不锈钢厨具等','陈女士','','江苏省南京市浦口区浦口大道1号新城总部大厦A座903室','025-86223345',1,'2013-03-25 16:52:07',NULL,NULL),(11,'GZ_GYS003','广州市白云区美星五金制品厂','长期合作伙伴,主营产品:海绵床垫、坐垫、靠垫、海绵枕头、头枕等','梁天','','广州市白云区钟落潭镇福龙路20号','020-85542231',1,'2016-12-21 06:12:17',NULL,NULL),(12,'BJ_GYS004','北京隆盛日化科技','长期合作伙伴,主营产品:日化环保清洗剂,家居洗涤专卖、洗涤用品网、墙体除霉剂、墙面霉菌清除剂等','孙欣','','北京市大兴区旧宫','010-35576786',1,'2014-11-21 12:51:11',NULL,NULL),(13,'SD_GYS001','山东豪克华光联合发展有限公司','长期合作伙伴,主营产品:洗衣皂、洗衣粉、洗衣液、洗洁精、消杀类、香皂等','吴洪转','','山东济阳济北工业区仁和街21号','0531-53362445',1,'2015-01-28 10:52:07',NULL,NULL),(14,'JS_GYS003','无锡喜源坤商行','长期合作伙伴,主营产品:日化品批销','周一清','','江苏无锡盛岸西路','0510-32274422',1,'2016-04-23 11:11:11',NULL,NULL),(15,'ZJ_GYS002','乐摆日用品厂','长期合作伙伴,主营产品:各种中、高档塑料杯,塑料乐扣水杯(密封杯)、保鲜杯(保鲜盒)、广告杯、礼品杯','王世杰','','浙江省金华市义乌市义东路','0579-34452321',1,'2016-08-22 10:01:30',NULL,NULL); /*Table structure for table `smbms_role` */ DROP TABLE IF EXISTS `smbms_role`; CREATE TABLE `smbms_role` (
`id` bigint(20) NOT NULL AUTO_INCREMENT COMMENT '主键ID',
`roleCode` varchar(15) COLLATE utf8_unicode_ci DEFAULT NULL COMMENT '角色编码',
`roleName` varchar(15) COLLATE utf8_unicode_ci DEFAULT NULL COMMENT '角色名称',
`createdBy` bigint(20) DEFAULT NULL COMMENT '创建者',
`creationDate` datetime DEFAULT NULL COMMENT '创建时间',
`modifyBy` bigint(20) DEFAULT NULL COMMENT '修改者',
`modifyDate` datetime DEFAULT NULL COMMENT '修改时间',
PRIMARY KEY (`id`)
) ENGINE=InnoDB AUTO_INCREMENT=4 DEFAULT CHARSET=utf8 COLLATE=utf8_unicode_ci; /*Data for the table `smbms_role` */ insert into `smbms_role`(`id`,`roleCode`,`roleName`,`createdBy`,`creationDate`,`modifyBy`,`modifyDate`) values (1,'SMBMS_ADMIN','系统管理员',1,'2016-04-13 00:00:00',NULL,NULL),(2,'SMBMS_MANAGER','经理',1,'2016-04-13 00:00:00',NULL,NULL),(3,'SMBMS_EMPLOYEE','普通员工',1,'2016-04-13 00:00:00',NULL,NULL); /*Table structure for table `smbms_user` */ DROP TABLE IF EXISTS `smbms_user`; CREATE TABLE `smbms_user` (
`id` bigint(20) NOT NULL AUTO_INCREMENT COMMENT '主键ID',
`userCode` varchar(15) COLLATE utf8_unicode_ci DEFAULT NULL COMMENT '用户编码',
`userName` varchar(15) COLLATE utf8_unicode_ci DEFAULT NULL COMMENT '用户名称',
`userPassword` varchar(15) COLLATE utf8_unicode_ci DEFAULT NULL COMMENT '用户密码',
`gender` int(10) DEFAULT NULL COMMENT '性别(1:女、 2:男)',
`birthday` date DEFAULT NULL COMMENT '出生日期',
`phone` varchar(15) COLLATE utf8_unicode_ci DEFAULT NULL COMMENT '手机',
`address` varchar(30) COLLATE utf8_unicode_ci DEFAULT NULL COMMENT '地址',
`userRole` bigint(20) DEFAULT NULL COMMENT '用户角色(取自角色表-角色id)',
`createdBy` bigint(20) DEFAULT NULL COMMENT '创建者(userId)',
`creationDate` datetime DEFAULT NULL COMMENT '创建时间',
`modifyBy` bigint(20) DEFAULT NULL COMMENT '更新者(userId)',
`modifyDate` datetime DEFAULT NULL COMMENT '更新时间',
PRIMARY KEY (`id`)
) ENGINE=InnoDB AUTO_INCREMENT=16 DEFAULT CHARSET=utf8 COLLATE=utf8_unicode_ci; /*Data for the table `smbms_user` */ insert into `smbms_user`(`id`,`userCode`,`userName`,`userPassword`,`gender`,`birthday`,`phone`,`address`,`userRole`,`createdBy`,`creationDate`,`modifyBy`,`modifyDate`) values (1,'admin','系统管理员','',1,'1983-10-10','','北京市海淀区成府路207号',1,1,'2013-03-21 16:52:07',NULL,NULL),(2,'liming','李明','',2,'1983-12-10','','北京市东城区前门东大街9号',2,1,'2014-12-31 19:52:09',NULL,NULL),(5,'hanlubiao','韩路彪','',2,'1984-06-05','','北京市朝阳区北辰中心12号',2,1,'2014-12-31 19:52:09',NULL,NULL),(6,'zhanghua','张华','',1,'1983-06-15','','北京市海淀区学院路61号',3,1,'2013-02-11 10:51:17',NULL,NULL),(7,'wangyang','王洋','',2,'1982-12-31','','北京市海淀区西二旗辉煌国际16层',3,1,'2014-06-11 19:09:07',NULL,NULL),(8,'zhaoyan','赵燕','',1,'1986-03-07','','北京市海淀区回龙观小区10号楼',3,1,'2016-04-21 13:54:07',NULL,NULL),(10,'sunlei','孙磊','',2,'1981-01-04','','北京市朝阳区管庄新月小区12楼',3,1,'2015-05-06 10:52:07',NULL,NULL),(11,'sunxing','孙兴','',2,'1978-03-12','','北京市朝阳区建国门南大街10号',3,1,'2016-11-09 16:51:17',NULL,NULL),(12,'zhangchen','张晨','',1,'1986-03-28','','朝阳区管庄路口北柏林爱乐三期13号楼',3,1,'2016-08-09 05:52:37',1,'2016-04-14 14:15:36'),(13,'dengchao','邓超','',2,'1981-11-04','','北京市海淀区北航家属院10号楼',3,1,'2016-07-11 08:02:47',NULL,NULL),(14,'yangguo','杨过','',2,'1980-01-01','','北京市朝阳区北苑家园茉莉园20号楼',3,1,'2015-02-01 03:52:07',NULL,NULL),(15,'zhaomin','赵敏','',1,'1987-12-04','','北京市昌平区天通苑3区12号楼',2,1,'2015-09-12 12:02:12',NULL,NULL); /*!40101 SET SQL_MODE=@OLD_SQL_MODE */;
/*!40014 SET FOREIGN_KEY_CHECKS=@OLD_FOREIGN_KEY_CHECKS */;
/*!40014 SET UNIQUE_CHECKS=@OLD_UNIQUE_CHECKS */;
/*!40111 SET SQL_NOTES=@OLD_SQL_NOTES */;

6.实体类User.java

 package com.wt.pojo;

 import java.util.Date;

 public class User {
private Integer id; //id
private String userCode; //用户编码
private String userName; //用户名称
private String userPassword; //用户密码
private Integer gender; //性别
private Date birthday; //出生日期
private String phone; //电话
private String address; //地址
private Integer userRole; //用户角色
private Integer createdBy; //创建者
private Date creationDate; //创建时间
private Integer modifyBy; //更新者
private Date modifyDate; //更新时间
public User() {
// TODO Auto-generated constructor stub
}
public User(Integer id, String userCode, String userName, String userPassword, Integer gender, Date birthday,
String phone, String address, Integer userRole, Integer createdBy, Date creationDate, Integer modifyBy,
Date modifyDate) {
super();
this.id = id;
this.userCode = userCode;
this.userName = userName;
this.userPassword = userPassword;
this.gender = gender;
this.birthday = birthday;
this.phone = phone;
this.address = address;
this.userRole = userRole;
this.createdBy = createdBy;
this.creationDate = creationDate;
this.modifyBy = modifyBy;
this.modifyDate = modifyDate;
}
public User(String userCode, String userName, String userPassword, Integer gender, Date birthday, String phone,
String address, Integer userRole, Integer createdBy, Date creationDate, Integer modifyBy, Date modifyDate) {
super();
this.userCode = userCode;
this.userName = userName;
this.userPassword = userPassword;
this.gender = gender;
this.birthday = birthday;
this.phone = phone;
this.address = address;
this.userRole = userRole;
this.createdBy = createdBy;
this.creationDate = creationDate;
this.modifyBy = modifyBy;
this.modifyDate = modifyDate;
}
public Integer getId() {
return id;
}
public void setId(Integer id) {
this.id = id;
}
public String getUserCode() {
return userCode;
}
public void setUserCode(String userCode) {
this.userCode = userCode;
}
public String getUserName() {
return userName;
}
public void setUserName(String userName) {
this.userName = userName;
}
public String getUserPassword() {
return userPassword;
}
public void setUserPassword(String userPassword) {
this.userPassword = userPassword;
}
public Integer getGender() {
return gender;
}
public void setGender(Integer gender) {
this.gender = gender;
}
public Date getBirthday() {
return birthday;
}
public void setBirthday(Date birthday) {
this.birthday = birthday;
}
public String getPhone() {
return phone;
}
public void setPhone(String phone) {
this.phone = phone;
}
public String getAddress() {
return address;
}
public void setAddress(String address) {
this.address = address;
}
public Integer getUserRole() {
return userRole;
}
public void setUserRole(Integer userRole) {
this.userRole = userRole;
}
public Integer getCreatedBy() {
return createdBy;
}
public void setCreatedBy(Integer createdBy) {
this.createdBy = createdBy;
}
public Date getCreationDate() {
return creationDate;
}
public void setCreationDate(Date creationDate) {
this.creationDate = creationDate;
}
public Integer getModifyBy() {
return modifyBy;
}
public void setModifyBy(Integer modifyBy) {
this.modifyBy = modifyBy;
}
public Date getModifyDate() {
return modifyDate;
}
public void setModifyDate(Date modifyDate) {
this.modifyDate = modifyDate;
}
@Override
public String toString() {
return "User [id=" + id + ", userCode=" + userCode + ", userName=" + userName + ", userPassword=" + userPassword
+ ", gender=" + gender + ", birthday=" + birthday + ", phone=" + phone + ", address=" + address
+ ", userRole=" + userRole + ", createdBy=" + createdBy + ", creationDate=" + creationDate
+ ", modifyBy=" + modifyBy + ", modifyDate=" + modifyDate + "]";
} }

7.log4j.properties文件,不做详解(在mybatis-config.xml引用)

 log4j.rootLogger=DEBUG,CONSOLE,file
#log4j.rootLogger=ERROR,ROLLING_FILE
log4j.logger.cn.smbms.dao=debug
log4j.logger.com.ibatis=debug
log4j.logger.com.ibatis.common.jdbc.SimpleDataSource=debug
log4j.logger.com.ibatis.common.jdbc.ScriptRunner=debug
log4j.logger.com.ibatis.sqlmap.engine.impl.SqlMapClientDelegate=debug
log4j.logger.java.sql.Connection=debug
log4j.logger.java.sql.Statement=debug
log4j.logger.java.sql.PreparedStatement=debug
log4j.logger.java.sql.ResultSet=debug
log4j.logger.org.tuckey.web.filters.urlrewrite.UrlRewriteFilter=debug ######################################################################################
# Console Appender \u65e5\u5fd7\u5728\u63a7\u5236\u8f93\u51fa\u914d\u7f6e
######################################################################################
log4j.appender.CONSOLE=org.apache.log4j.ConsoleAppender
log4j.appender.Threshold=error
log4j.appender.CONSOLE.Target=System.out
log4j.appender.CONSOLE.layout=org.apache.log4j.PatternLayout
log4j.appender.CONSOLE.layout.ConversionPattern= [%p] %d %c - %m%n ######################################################################################
# DailyRolling File \u6bcf\u5929\u4ea7\u751f\u4e00\u4e2a\u65e5\u5fd7\u6587\u4ef6\uff0c\u6587\u4ef6\u540d\u683c\u5f0f:log2009-09-11
######################################################################################
log4j.appender.file=org.apache.log4j.DailyRollingFileAppender
log4j.appender.file.DatePattern=yyyy-MM-dd
log4j.appender.file.File=log.log
log4j.appender.file.Append=true
log4j.appender.file.Threshold=error
log4j.appender.file.layout=org.apache.log4j.PatternLayout
log4j.appender.file.layout.ConversionPattern=%d{yyyy-M-d HH:mm:ss}%x[%5p](%F:%L) %m%n log4j.logger.com.opensymphony.xwork2=error

8.database.properties数据库配置(在mybatis-config.xml引用)

 driver=com.mysql.jdbc.Driver
url=jdbc:mysql://127.0.0.1:3306/smbms?useUnicode=true&characterEncoding=utf-8&zeroDateTimeBehavior=convertToNull
user=root
password=root

9.测试Demo

 public class Demo {
@Test
public void QueryCount() {
SqlSession sqlSession = null;
try {
//加载核心配置文件
InputStream is = Resources.getResourceAsStream("mybatis-config.xml");
//创建SqlSessionFactory
SqlSessionFactory build = new SqlSessionFactoryBuilder().build(is);
//创建SqlSession
sqlSession = build.openSession();
//执行Sql语句
//第一种 直接调用映射器语句id
List<User> selectOne = sqlSession.selectList("com.wt.dao.UserMapper.getUserList");
int count = sqlSession.selectOne("com.wt.dao.UserMapper.count");
//第二种 调用接口UserMapper,方法跟映射器里的查询语句id一样
List<User> list=sqlSession.getMapper(UserMapper.class).getUserList(); System.out.println(list);
} catch(Exception e){
e.printStackTrace();
}finally{
sqlSession.close();
} }

10.第二种执行sql语句的接口类

 package com.wt.dao;

 import java.util.List;

 import com.wt.pojo.User;

 public interface UserMapper {
/**
* 查询用户表记录数
* @return
*/
public int count();
/**
* 查询用户列表
* @return
*/
public List<User> getUserList(); }

11.封装重复代码集成工具类

  package com.wt.utils;

 import java.io.IOException;
import java.io.InputStream;
import org.apache.ibatis.io.Resources;
import org.apache.ibatis.session.SqlSession;
import org.apache.ibatis.session.SqlSessionFactory;
import org.apache.ibatis.session.SqlSessionFactoryBuilder; public class MyBatisUtil {
private static SqlSessionFactory factory; static{//在静态代码块下,factory只会被创建一次
System.out.println("static factory===============");
try {
//两种方法读取配置文件
//InputStream is = Resources.getResourceAsStream("mybatis-config.xml");
InputStream is = MyBatisUtil.class.getClassLoader().getResourceAsStream("mybatis-config.xml");
factory = new SqlSessionFactoryBuilder().build(is);
//} catch (IOException e) {
} catch (Exception e) {
e.printStackTrace();
}
} public static SqlSession createSqlSession(){
return factory.openSession(false);//true 为自动提交事务
} public static void closeSqlSession(SqlSession sqlSession){
if(null != sqlSession)
sqlSession.close();
}
}

12.增删查改测试

 //查询用户名
@Test
public void t1(){
SqlSession sqlSession=MyBatisUtil.createSqlSession();
List<User> list=sqlSession.selectList("com.wt.dao.UserMapper.getUser");
for(User name:list){
System.out.println(name.getUserName());
}
}
@Test
public void insert(){
SqlSession sqlSession=MyBatisUtil.createSqlSession();
User user=new User("wt","123","456",null,null,null,null,null,null,null,null,null);
int count = sqlSession.insert("com.wt.dao.UserMapper.addUser",user);
sqlSession.commit();
System.out.println("插入了"+count+"条数据");
System.out.println("回填的主键是"+user.getId());
MyBatisUtil.closeSqlSession(sqlSession);
}
@Test
public void update(){
SqlSession sqlSession=MyBatisUtil.createSqlSession();
User user=new User(16,"zl","456","123",null,null,null,null,null,null,null,null,null);
int count=sqlSession.update("com.wt.dao.UserMapper.updateUser",user);
sqlSession.commit();
System.out.println("更新了"+count+"数据");
MyBatisUtil.closeSqlSession(sqlSession);
}
@Test
public void delete(){
SqlSession sqlSession=MyBatisUtil.createSqlSession();
int count =sqlSession.delete("com.wt.dao.UserMapper.deleteUser",17);
sqlSession.commit();
System.out.println("删除了"+count+"条数据");
MyBatisUtil.closeSqlSession(sqlSession);
}
//模糊查询
@Test
public void like(){
SqlSession sqlSession=MyBatisUtil.createSqlSession();
List<User> list=sqlSession.selectList("com.wt.dao.UserMapper.findUserByUsername","孙");
System.out.println(list);
}

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