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  • mybatis学习(一)

     

    1、Mybatis下载:

    https://github.com/mybatis/mybatis-3/releases

     

    2、环境搭建:

    新建Java web项目,目录结构如下:

    1)将mybatis-3.1.1jar【mybatis核心jar】、mysql-connector-java-5.1.7-bin.jar【mysql连接驱动】放在WEB-INF目录下的lib目录中,全部选中,然后全部选中,鼠标右键单击add to buildPath(My Eclipse8.5会自动添加,10.7版本的需要手动添加)

    2)my eclipse 添加dtd文件:

    window==> preferences==>输入xml===>点击 XML CatLog====》

    找到这2个文件,按如下方式添加,Config 的key:    -//mybatis.org//DTD Config 3.0//EN,Mapper 的key:  -//mybatis.org//DTD Mapper 3.0//EN

    添加好如下:

    3)利用dtd模版创建RoleDao.xml ,UserDao.xml和mybatis-config.xml(具体步骤省略)

    4)创建数据库和表,代码如下:

      1 /*
      2 SQLyog 企业版 - MySQL GUI v8.14 
      3 MySQL - 5.5.40 : Database - smbms
      4 *********************************************************************
      5 */
      6 
      7 
      8 /*!40101 SET NAMES utf8 */;
      9 
     10 /*!40101 SET SQL_MODE=''*/;
     11 
     12 /*!40014 SET @OLD_UNIQUE_CHECKS=@@UNIQUE_CHECKS, UNIQUE_CHECKS=0 */;
     13 /*!40014 SET @OLD_FOREIGN_KEY_CHECKS=@@FOREIGN_KEY_CHECKS, FOREIGN_KEY_CHECKS=0 */;
     14 /*!40101 SET @OLD_SQL_MODE=@@SQL_MODE, SQL_MODE='NO_AUTO_VALUE_ON_ZERO' */;
     15 /*!40111 SET @OLD_SQL_NOTES=@@SQL_NOTES, SQL_NOTES=0 */;
     16 
     17 CREATE DATABASE /*!32312 IF NOT EXISTS*/`smbms` /*!40100 DEFAULT CHARACTER SET utf8 COLLATE utf8_unicode_ci */;
     18 smbmssmbms_user
     19 USE `smbms`;
     20 
     21 /*Table structure for table `smbms_address` */
     22 
     23 DROP TABLE IF EXISTS `smbms_address`;
     24 
     25 CREATE TABLE `smbms_address` (
     26   `id` BIGINT(20) NOT NULL AUTO_INCREMENT COMMENT '主键ID',
     27   `contact` VARCHAR(15) COLLATE utf8_unicode_ci DEFAULT NULL COMMENT '联系人姓名',
     28   `addressDesc` VARCHAR(50) COLLATE utf8_unicode_ci DEFAULT NULL COMMENT '收货地址明细',
     29   `postCode` VARCHAR(15) COLLATE utf8_unicode_ci DEFAULT NULL COMMENT '邮编',
     30   `tel` VARCHAR(20) COLLATE utf8_unicode_ci DEFAULT NULL COMMENT '联系人电话',
     31   `createdBy` BIGINT(20) DEFAULT NULL COMMENT '创建者',
     32   `creationDate` DATETIME DEFAULT NULL COMMENT '创建时间',
     33   `modifyBy` BIGINT(20) DEFAULT NULL COMMENT '修改者',
     34   `modifyDate` DATETIME DEFAULT NULL COMMENT '修改时间',
     35   `userId` BIGINT(20) DEFAULT NULL COMMENT '用户ID',
     36   PRIMARY KEY (`id`)
     37 ) ENGINE=INNODB AUTO_INCREMENT=7 DEFAULT CHARSET=utf8 COLLATE=utf8_unicode_ci;
     38 
     39 /*Data for the table `smbms_address` */
     40 
     41 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','100010','13678789999',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','100000','18567672312',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','100021','13387906742',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','100053','13568902323',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','100032','18032356666',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','100061','13787882222',1,'2016-04-13 00:00:00',NULL,NULL,3);
     42 
     43 /*Table structure for table `smbms_bill` */
     44 
     45 DROP TABLE IF EXISTS `smbms_bill`;
     46 
     47 CREATE TABLE `smbms_bill` (
     48   `id` BIGINT(20) NOT NULL AUTO_INCREMENT COMMENT '主键ID',
     49   `billCode` VARCHAR(20) COLLATE utf8_unicode_ci DEFAULT NULL COMMENT '账单编码',
     50   `productName` VARCHAR(20) COLLATE utf8_unicode_ci DEFAULT NULL COMMENT '商品名称',
     51   `productDesc` VARCHAR(50) COLLATE utf8_unicode_ci DEFAULT NULL COMMENT '商品描述',
     52   `productUnit` VARCHAR(10) COLLATE utf8_unicode_ci DEFAULT NULL COMMENT '商品单位',
     53   `productCount` DECIMAL(20,2) DEFAULT NULL COMMENT '商品数量',
     54   `totalPrice` DECIMAL(20,2) DEFAULT NULL COMMENT '商品总额',
     55   `isPayment` INT(10) DEFAULT NULL COMMENT '是否支付(1:未支付 2:已支付)',
     56   `createdBy` BIGINT(20) DEFAULT NULL COMMENT '创建者(userId)',
     57   `creationDate` DATETIME DEFAULT NULL COMMENT '创建时间',
     58   `modifyBy` BIGINT(20) DEFAULT NULL COMMENT '更新者(userId)',
     59   `modifyDate` DATETIME DEFAULT NULL COMMENT '更新时间',
     60   `providerId` BIGINT(20) DEFAULT NULL COMMENT '供应商ID',
     61   PRIMARY KEY (`id`)
     62 ) ENGINE=INNODB AUTO_INCREMENT=19 DEFAULT CHARSET=utf8 COLLATE=utf8_unicode_ci;
     63 
     64 /*Data for the table `smbms_bill` */
     65 
     66 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','','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','','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','','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','','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','','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','','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','','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','','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','','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','','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','','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','','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','','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','','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','','600.00','4000.00',2,1,'2016-11-14 14:00:00',NULL,NULL,3),(16,'BILL2016_016','可口可乐','饮料','','2000.00','6000.00',2,1,'2012-03-27 13:03:01',NULL,NULL,2),(17,'BILL2016_017','脉动','饮料','','1500.00','4500.00',2,1,'2016-05-10 12:00:00',NULL,NULL,2),(18,'BILL2016_018','哇哈哈','饮料','','2000.00','4000.00',2,1,'2015-11-24 15:12:03',NULL,NULL,2);
     67 
     68 /*Table structure for table `smbms_provider` */
     69 
     70 DROP TABLE IF EXISTS `smbms_provider`;
     71 
     72 CREATE TABLE `smbms_provider` (
     73   `id` BIGINT(20) NOT NULL AUTO_INCREMENT COMMENT '主键ID',
     74   `proCode` VARCHAR(20) COLLATE utf8_unicode_ci DEFAULT NULL COMMENT '供应商编码',
     75   `proName` VARCHAR(20) COLLATE utf8_unicode_ci DEFAULT NULL COMMENT '供应商名称',
     76   `proDesc` VARCHAR(50) COLLATE utf8_unicode_ci DEFAULT NULL COMMENT '供应商详细描述',
     77   `proContact` VARCHAR(20) COLLATE utf8_unicode_ci DEFAULT NULL COMMENT '供应商联系人',
     78   `proPhone` VARCHAR(20) COLLATE utf8_unicode_ci DEFAULT NULL COMMENT '联系电话',
     79   `proAddress` VARCHAR(50) COLLATE utf8_unicode_ci DEFAULT NULL COMMENT '地址',
     80   `proFax` VARCHAR(20) COLLATE utf8_unicode_ci DEFAULT NULL COMMENT '传真',
     81   `createdBy` BIGINT(20) DEFAULT NULL COMMENT '创建者(userId)',
     82   `creationDate` DATETIME DEFAULT NULL COMMENT '创建时间',
     83   `modifyDate` DATETIME DEFAULT NULL COMMENT '更新时间',
     84   `modifyBy` BIGINT(20) DEFAULT NULL COMMENT '更新者(userId)',
     85   PRIMARY KEY (`id`)
     86 ) ENGINE=INNODB AUTO_INCREMENT=16 DEFAULT CHARSET=utf8 COLLATE=utf8_unicode_ci;
     87 
     88 /*Data for the table `smbms_provider` */
     89 
     90 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','13566667777','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','13309094212','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','13402013312','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','18599897645','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','13754444221','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','13422235678','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','13344441135','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','18099953223','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','13323566543','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','13098992113','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','13562276775','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','13689865678','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','13245468787','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','18567674532','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','13212331567','浙江省金华市义乌市义东路','0579-34452321',1,'2016-08-22 10:01:30',NULL,NULL);
     91 
     92 /*Table structure for table `smbms_role` */
     93 
     94 DROP TABLE IF EXISTS `smbms_role`;
     95 
     96 CREATE TABLE `smbms_role` (
     97   `id` BIGINT(20) NOT NULL AUTO_INCREMENT COMMENT '主键ID',
     98   `roleCode` VARCHAR(15) COLLATE utf8_unicode_ci DEFAULT NULL COMMENT '角色编码',
     99   `roleName` VARCHAR(15) COLLATE utf8_unicode_ci DEFAULT NULL COMMENT '角色名称',
    100   `createdBy` BIGINT(20) DEFAULT NULL COMMENT '创建者',
    101   `creationDate` DATETIME DEFAULT NULL COMMENT '创建时间',
    102   `modifyBy` BIGINT(20) DEFAULT NULL COMMENT '修改者',
    103   `modifyDate` DATETIME DEFAULT NULL COMMENT '修改时间',
    104   PRIMARY KEY (`id`)
    105 ) ENGINE=INNODB AUTO_INCREMENT=4 DEFAULT CHARSET=utf8 COLLATE=utf8_unicode_ci;
    106 
    107 /*Data for the table `smbms_role` */
    108 
    109 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);
    110 
    111 /*Table structure for table `smbms_user` */
    112 
    113 DROP TABLE IF EXISTS `smbms_user`;
    114 
    115 CREATE TABLE `smbms_user` (
    116   `id` BIGINT(20) NOT NULL AUTO_INCREMENT COMMENT '主键ID',
    117   `userCode` VARCHAR(15) COLLATE utf8_unicode_ci DEFAULT NULL COMMENT '用户编码',
    118   `userName` VARCHAR(15) COLLATE utf8_unicode_ci DEFAULT NULL COMMENT '用户名称',
    119   `userPassword` VARCHAR(15) COLLATE utf8_unicode_ci DEFAULT NULL COMMENT '用户密码',
    120   `gender` INT(10) DEFAULT NULL COMMENT '性别(1:女、 2:男)',
    121   `birthday` DATE DEFAULT NULL COMMENT '出生日期',
    122   `phone` VARCHAR(15) COLLATE utf8_unicode_ci DEFAULT NULL COMMENT '手机',
    123   `address` VARCHAR(30) COLLATE utf8_unicode_ci DEFAULT NULL COMMENT '地址',
    124   `userRole` BIGINT(20) DEFAULT NULL COMMENT '用户角色(取自角色表-角色id)',
    125   `createdBy` BIGINT(20) DEFAULT NULL COMMENT '创建者(userId)',
    126   `creationDate` DATETIME DEFAULT NULL COMMENT '创建时间',
    127   `modifyBy` BIGINT(20) DEFAULT NULL COMMENT '更新者(userId)',
    128   `modifyDate` DATETIME DEFAULT NULL COMMENT '更新时间',
    129   PRIMARY KEY (`id`)
    130 ) ENGINE=INNODB AUTO_INCREMENT=16 DEFAULT CHARSET=utf8 COLLATE=utf8_unicode_ci;
    131 
    132 /*Data for the table `smbms_user` */
    133 
    134 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','1234567',1,'1983-10-10','13688889999','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','0000000',2,'1983-12-10','13688884457','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','0000000',2,'1984-06-05','18567542321','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','0000000',1,'1983-06-15','13544561111','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','0000000',2,'1982-12-31','13444561124','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','0000000',1,'1986-03-07','18098764545','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','0000000',2,'1981-01-04','13387676765','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','0000000',2,'1978-03-12','13367890900','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','0000000',1,'1986-03-28','18098765434','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','0000000',2,'1981-11-04','13689674534','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','0000000',2,'1980-01-01','13388886623','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','0000000',1,'1987-12-04','18099897657','北京市昌平区天通苑3区12号楼',2,1,'2015-09-12 12:02:12',NULL,NULL);
    135 
    136 /*!40101 SET SQL_MODE=@OLD_SQL_MODE */;
    137 /*!40014 SET FOREIGN_KEY_CHECKS=@OLD_FOREIGN_KEY_CHECKS */;
    138 /*!40014 SET UNIQUE_CHECKS=@OLD_UNIQUE_CHECKS */;
    139 /*!40111 SET SQL_NOTES=@OLD_SQL_NOTES */;
    140 
    141 
    142 select * from smbms_bill
    143 select * from smbms_user
    smbms_db.sql

    5)根据数据库字userbiao he role 表的字段创建2个实体类:

     1 package cn.smbms.xsh.entity;
     2 
     3 public class User {
     4 
     5     private Integer id;
     6     private String userCode;
     7     private String userName;
     8     private String userPassword;
     9     private Integer gender;
    10 
    11     public Integer getId() {
    12         return id;
    13     }
    14 
    15     public void setId(Integer id) {
    16         this.id = id;
    17     }
    18 
    19     public String getUserCode() {
    20         return userCode;
    21     }
    22 
    23     public void setUserCode(String userCode) {
    24         this.userCode = userCode;
    25     }
    26 
    27     public String getUserName() {
    28         return userName;
    29     }
    30 
    31     public void setUserName(String userName) {
    32         this.userName = userName;
    33     }
    34 
    35     public String getUsrePassword() {
    36         return userPassword;
    37     }
    38 
    39     public void setUsrePassword(String usrePassword) {
    40         this.userPassword = usrePassword;
    41     }
    42 
    43     public Integer getGender() {
    44         return gender;
    45     }
    46 
    47     public void setGender(Integer gender) {
    48         this.gender = gender;
    49     }
    50 
    51     @Override
    52     public String toString() {
    53         return "User [id=" + id + ", userCode=" + userCode + ", userName="
    54                 + userName + ", usrePassword=" + userPassword + ", gender="
    55                 + gender + "]";
    56     }
    57 
    58 }
    User实体类
     1 package cn.smbms.xsh.entity;
     2 
     3 import java.util.Date;
     4 
     5 public class Role {
     6 
     7     private Integer id;//角色编号
     8     private String roleCode;//角色编码
     9     private String roleName;//角色名称
    10     private Integer createdBy;//创建者
    11     private Date creationDate;//创建时间
    12     private Integer modifyBy;//修改者
    13     private Date modifyDate;//修改时间
    14 
    15     public Integer getId() {
    16         return id;
    17     }
    18 
    19     public void setId(Integer id) {
    20         this.id = id;
    21     }
    22 
    23     public String getRoleCode() {
    24         return roleCode;
    25     }
    26 
    27     public void setRoleCode(String roleCode) {
    28         this.roleCode = roleCode;
    29     }
    30 
    31     public String getRoleName() {
    32         return roleName;
    33     }
    34 
    35     public void setRoleName(String roleName) {
    36         this.roleName = roleName;
    37     }
    38 
    39     public Integer getCreatedBy() {
    40         return createdBy;
    41     }
    42 
    43     public void setCreatedBy(Integer createdBy) {
    44         this.createdBy = createdBy;
    45     }
    46 
    47     public Date getCreationDate() {
    48         return creationDate;
    49     }
    50 
    51     public void setCreationDate(Date creationDate) {
    52         this.creationDate = creationDate;
    53     }
    54 
    55     public Integer getModifyBy() {
    56         return modifyBy;
    57     }
    58 
    59     public void setModifyBy(Integer modifyBy) {
    60         this.modifyBy = modifyBy;
    61     }
    62 
    63     public Date getModifyDate() {
    64         return modifyDate;
    65     }
    66 
    67     public void setModifyDate(Date modifyDate) {
    68         this.modifyDate = modifyDate;
    69     }
    70 
    71     @Override
    72     public String toString() {
    73         return "Role [id=" + id + ", roleCode=" + roleCode + ", roleName="
    74                 + roleName + ", createdBy=" + createdBy + ", creationDate="
    75                 + creationDate + ", modifyBy=" + modifyBy + ", modifyDate="
    76                 + modifyDate + "]";
    77     }
    78 
    79 }
    Role实体类

    6)创建数据访问层的dao接口,定义增删改查的方法:

    insert,select ,update,delete标签中的id,必须是dao接口中定义的id,

     1 package cn.smbms.xsh.dao;
     2 
     3 import java.util.List;
     4 
     5 import cn.smbms.xsh.entity.User;
     6 
     7 public interface UserDao {
     8     
     9     List<User> getAllUser();
    10     
    11     Integer addUser(User user);
    12     
    13     Integer update(User user);
    14     
    15     Integer delete(Integer id);
    16 
    17 }
    UserDao 定义
     1 package cn.smbms.xsh.dao;
     2 
     3 import java.util.List;
     4 
     5 import cn.smbms.xsh.entity.Role;
     6 
     7 public interface RoleDao {
     8     /**
     9      * 获取所有role
    10      * 
    11      * @return
    12      */
    13     List<Role> getAll();
    14 
    15     /**
    16      * 删除
    17      * 
    18      * @param id
    19      * @return
    20      */
    21     Integer delete(Integer id);
    22 
    23     /**
    24      * 修改
    25      * 
    26      * @param role
    27      * @return
    28      */
    29     Integer update(Role role);
    30 
    31     /**
    32      * 增加
    33      * 
    34      * @param role
    35      * @return
    36      */
    37     Integer add(Role role);
    38 }
    RoleDao 定义

    7)创建User,role的映射xml文件,其作用相当于使用JDBC方式进行增删改查时写在数据访问层dao接口实现类里边的sql语句,原来在JDBC方式下增删改是如下这么写的:

    在mybatis中,在映射接口xml文件中写sql语句,相当于上面的dao接口实现类:

     1 <?xml version="1.0" encoding="UTF-8"?>
     2 <!DOCTYPE mapper PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN" "mybatis-3-mapper.dtd" >
     3 <mapper namespace="cn.smbms.xsh.dao.UserDao">
     4     <select id="getAllUser" resultType="User">
     5         select * from smbms_user
     6     </select>
     7     
     8     <insert id="addUser">
     9             INSERT INTO smbms.smbms_user 
    10                 (id, 
    11                 userCode, 
    12                 userName, 
    13                 userPassword, 
    14                 gender
    15                 )
    16                 VALUES
    17                 (null, 
    18                 #{userCode}, 
    19                 #{userName}, 
    20                 #{userPassword}, 
    21                 #{gender}
    22                 );
    23     </insert>
    24     
    25     <update id="update">
    26             UPDATE smbms.smbms_user 
    27             SET
    28             userCode = #{userCode} , 
    29             userName = #{userName} , 
    30             userPassword = #{userPassword} , 
    31             gender = #{gender}  
    32             WHERE
    33             id = #{id} ;
    34     </update>
    35 
    36     <delete id="delete">
    37         delete from smbms_user where id = #{id}
    38     </delete>
    39 </mapper>
    UserDao.xml
     1 <?xml version="1.0" encoding="UTF-8"?>
     2 <!DOCTYPE mapper PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN" "mybatis-3-mapper.dtd" >
     3 <mapper namespace="cn.smbms.xsh.dao.RoleDao">
     4 
     5     <select id="getAll" resultType="Role">
     6         SELECT     id, roleCode, roleName, createdBy, creationDate, 
     7         modifyBy,modifyDate FROM     smbms_role 
     8     </select>
     9     
    10     <insert id="add" >
    11         INSERT INTO smbms_role 
    12         (id, roleCode, roleName, createdBy, creationDate, modifyBy, modifyDate    )
    13         VALUES
    14         (null,     #{roleCode}, #{roleName}, #{createdBy}, now(), null, null    );
    15     </insert>
    16     
    17     <update id="update">
    18         UPDATE smbms.smbms_role 
    19         SET
    20         roleCode = #{roleCode} , 
    21         roleName = #{roleName}, 
    22         modifyBy = #{modifyBy} , 
    23         modifyDate = now()
    24         WHERE
    25         id = #{id} 
    26     </update>
    27     
    28     <delete id="delete">
    29         delete from smbms_role where id=#{id}
    30     </delete>
    31     
    32 </mapper>
    RoleDao.xml

    8)mybatis-config.xml配置文件配置:

     1 <?xml version="1.0" encoding="UTF-8"?>
     2 <!DOCTYPE configuration PUBLIC "-//mybatis.org//DTD Config 3.0//EN" "mybatis-3-config.dtd" >
     3 <configuration>
     4     <!-- 读取数据库配置文件信息 -->
     5     <properties resource="database.properties">
     6     </properties>
     7     <!-- 配置别名 -->
     8     <typeAliases>
     9         <!-- 通过package, 可以直接指定package的名字, mybatis会自动扫描你指定包下面的javabean, 并且默认设置一个别名,默认的名字为: 
    10             javabean 的首字母小写的非限定类名来作为它的别名 -->
    11         <package name="cn.smbms.xsh"></package>
    12     </typeAliases>
    13     <!-- 配置mybatis的多套运行环境,default的值必须是所有environment标签的id属性中的一个值 -->
    14     <environments default="development">
    15         <environment id="development">
    16             <!-- 事务管理方式定义:采用JDBC方式 -->
    17             <transactionManager type="JDBC"></transactionManager>
    18             <!-- 数据源:采用连接池POOLED -->
    19             <dataSource type="POOLED">
    20                 <!-- 读取数据库配置文件database.properties里边的数据库配置信息 value获取配置文件中定义的属性的值 -->
    21                 <property name="driver" value="${driver}" />
    22                 <property name="url" value="${url}" />
    23                 <property name="username" value="${user}" />
    24                 <property name="password" value="${password}" />
    25             </dataSource>
    26         </environment>
    27     </environments>
    28     <!-- 映射接口xml文件的路径,告诉mybatis去哪里找到sql映射文件 -->
    29     <mappers>
    30         <!-- resource属性的值是sql映射文件的路径 -->
    31         <mapper resource="cn/smbms/xsh/dao/RoleDao.xml"></mapper>
    32         <mapper resource="cn/smbms/xsh/dao/UserDao.xml"></mapper>
    33 
    34     </mappers>
    35 </configuration>
    mybatis-config.xml

    database.properties数据库配置文件内容如下:

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

     9) 创建Junit TestCase测试类进行测试

     1 package cn.smbms.xsh.test;
     2 
     3 import java.io.InputStream;
     4 import java.util.List;
     5 
     6 import org.apache.ibatis.session.SqlSession;
     7 import org.apache.ibatis.session.SqlSessionFactory;
     8 import org.apache.ibatis.session.SqlSessionFactoryBuilder;
     9 import org.apache.log4j.Logger;
    10 import org.junit.After;
    11 import org.junit.Before;
    12 import org.junit.Test;
    13 
    14 import cn.smbms.xsh.dao.UserDao;
    15 import cn.smbms.xsh.entity.User;
    16 
    17 public class UserDaoTest {
    18     
    19     private Logger logger = Logger.getLogger(UserDaoTest.class);
    20     SqlSession sqlSession =null;
    21     UserDao dao = null;
    22 //@Before 表示每次执行    @Test标签后面的测试方法时,先执行@Before后面的代码
    23     @Before
    24     public void before(){
    25         //mybatis-config.xml配置文件信息读取到输入流中
    26         InputStream is = UserDaoTest.class.getClassLoader().getResourceAsStream("mybatis-config.xml");
    27         //创建sqlSessionFactoryBuilder对象
    28         SqlSessionFactoryBuilder builder = new SqlSessionFactoryBuilder();
    29         //创建SqlSessionFactory,也就是sqlSession工厂对象
    30         SqlSessionFactory factory = builder.build(is);
    31         //开启sqlSession会话
    32         sqlSession = factory.openSession();
    33         //获取UserDao代理
    34         dao = sqlSession.getMapper(UserDao.class);
    35     }
    36     
    37     @Test
    38     public void testGetAll(){
    39         List<User> userList = dao.getAllUser();
    40         for (User user : userList) {
    41             logger.debug(user);
    42         }
    43         
    44     }
    45     
    46     @Test
    47     public void testAddUser(){
    48         User user = new User();
    49         user.setGender(1);
    50         user.setUserCode("hanmeimei");
    51         user.setUserName("hanmei");
    52         user.setUsrePassword("123456");
    53 //        user.setId(id);
    54         System.out.println(dao.addUser(user));
    55         
    56     }
    57     
    58     @Test
    59     public void testUpdate(){
    60         User user = new User();
    61         user.setUserCode("hanmeimei");
    62         user.setUserName("韩梅梅");
    63         user.setUsrePassword("123456");
    64         user.setGender(1);
    65         user.setId(16);
    66         System.out.println(dao.update(user));
    67         
    68     }
    69     
    70     @Test
    71     public void testDelete(){
    72         System.out.println(dao.delete(16));
    73     }
    74     
    75     @After
    76     public void after(){
    77         sqlSession.commit();
    78         sqlSession.close();
    79         System.out.println("over");
    80     }
    81 
    82 }
    View Code
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  • 原文地址:https://www.cnblogs.com/enjoyjava/p/7837429.html
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