SpringBoot第二次课---SpringBoot+thymeleaf+MyBatis+MySQL实现查询功能

数据库操作

测试数据

DROP TABLE IF EXISTS `t_book`; CREATE TABLE `t_book` (   `id` int(11) NOT NULL AUTO_INCREMENT,   `isbn` varchar(9) DEFAULT NULL,   `author` varchar(50) DEFAULT NULL,   `name` varchar(100) DEFAULT NULL,   `price` float DEFAULT NULL,   PRIMARY KEY (`id`) ) ENGINE=InnoDB AUTO_INCREMENT=9 DEFAULT CHARSET=utf8;                         INSERT INTO `t_book` VALUES ('1', '11111', '吴承思', '西游记', '100'); INSERT INTO `t_book` VALUES ('2', '22222', '罗贯中', '三国演义', '200'); INSERT INTO `t_book` VALUES ('3', '33333', '施耐奄', '水浒传', '200'); INSERT INTO `t_book` VALUES ('4', '44444', '曹雪芹', '红楼梦', '200'); INSERT INTO `t_book` VALUES ('5', '55555', '吴道子', '天王送子图', '3000'); INSERT INTO `t_book` VALUES ('6', '66666', '李白', '静夜思', '2000'); INSERT INTO `t_book` VALUES ('7', '77777', '杜甫', '茅屋为秋风所破歌', '4000'); INSERT INTO `t_book` VALUES ('8', '88888', '白居易', '长恨歌', '2000');

 

• 整合Mybaits

第一步：添加相关依赖

 

JDBC API

<dependency>     <groupId>org.springframework.boot</groupId>     <artifactId>spring-boot-starter-jdbc</artifactId> </dependency>

MySQL Driver

<dependency>     <groupId>mysql</groupId>     <artifactId>mysql-connector-java</artifactId>     <scope>runtime</scope> </dependency>

MyBatis Framework

<dependency>     <groupId>org.mybatis.spring.boot</groupId>     <artifactId>mybatis-spring-boot-starter</artifactId>     <version>2.1.1</version> </dependency>

Thymeleaf

<dependency>     <groupId>org.springframework.boot</groupId>     <artifactId>spring-boot-starter-thymeleaf</artifactId> </dependency>

 

第二步：配置application.properties

#端口 server.port=9999 #驱动 spring.datasource.driver-class-name=com.mysql.jdbc.Driver #url spring.datasource.url=jdbc:mysql://localhost:3306/test?useUnicode=true&characterEncoding=utf8 #用户名 spring.datasource.username=root #密码 spring.datasource.password=52Java #扫描mapper文件 com.hr.mapper mybatis.mapper-locations=classpath*:com/hr/mapper/*.xml

第三步：

写后台并测试

写bean

写mapper

写mapper.xml

写service

写serviceimpl

写web

第四步：写前台并测试

Thymeleaf标签使用

th:each

th:text

th:href

@ PathVariable

value,修改的回显

th:value="${o.productDesc}"

 

option回显

th:selected="${digit.type=='手机' ? true:false}"

隔行换色

写模板list.html

 

写模板add.html

写模板update.html

 

测试：

预计问题：

1.mysql驱动、mysql的url

• spring.datasource.driver-class-name=com.mysql.cj.jdbc.Driver
• You must configure either the server or JDBC driver (via the 'serverTimezone' configuration property) to use a more specifc time zone value if you want to utilize time zone support. 
• serverTimezone=UTC
• 共7种，分别是白色，浅蓝色，深蓝色，绿色，黄色，红色，黑色，对应的class为btn，btn btn-primary，btn btn-info，btn btn-success，btn btn-warning，btn btn-danger，btn btn-inverse。