本篇内容主要讲解“SpringBoot怎么整合tkMapper”，感兴趣的朋友不妨来看看。本文介绍的方法操作简单快捷，实用性强。下面就让小编来带大家学习“SpringBoot怎么整合tkMapper”吧!
SpringBoot整合tkMapper
1 搭建一个SpringBoot的项目，怎么搭建网上教程一大堆，这里就不描述了直接进入正题，首先先看一下整体的项目结构
2 pom文件引入依赖（注意依赖冲突）
<dependencies> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-web</artifactId> </dependency> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-test</artifactId> <scope>test</scope> </dependency> <!--lombok省略代码--> <dependency> <groupId>org.projectlombok</groupId> <artifactId>lombok</artifactId> <optional>true</optional> </dependency> <!-- h3嵌入式数据--> <dependency> <groupId>com.h3database</groupId> <artifactId>h3</artifactId> <scope>runtime</scope> </dependency> <!-- tk--> <dependency> <groupId>tk.mybatis</groupId> <artifactId>mapper-spring-boot-starter</artifactId> <version>RELEASE</version> </dependency> <dependency> <groupId>tk.mybatis</groupId> <artifactId>mapper</artifactId> <version>3.4.5</version> </dependency> </dependencies>3 在resources目录下新建db文件夹，用来存放数据文件，其中schema-h3.sql为数据库 Schema 脚本，data-h3.sql为Data脚本
schema-h3.sql
DROP TABLE IF EXISTS user;CREATE TABLE user( id BIGINT(20) NOT NULL COMMENT '主键ID', name VARCHAR(30) NULL DEFAULT NULL COMMENT '姓名', age INT(11) NULL DEFAULT NULL COMMENT '年龄', email VARCHAR(50) NULL DEFAULT NULL COMMENT '邮箱', PRIMARY KEY (id));data-h3.sql
DELETE FROM user;INSERT INTO user (id, name, age, email) VALUES(1, 'red', 18, 'test1@tian.com'),(2, 'yll', 20, 'test2@tian.com'),(3, 'putty', 22, 'test3@tian.com'),(4, 'ele', 24, 'test4@tian.com'),(5, 'tom', 26, 'test5@tian.com');4 application.yml
spring: datasource: driver-class-name: org.h3.Driver schema: classpath:db/schema-h3.sql data: classpath:db/data-h3.sql url: jdbc:h3:mem:root username: root password: root5 在生成的项目路径下新建一个 tk 包，在 tk 包下新建bean包（存放实体类），dao 包（存放 Mapper 接口类），config 包（存放配置类）
tk 包下新建通用 Mapper 接口 MyMapper
继承Mapper和MySqlMapper，以后我们的业务dao直接集成MyMapper即可
此接口不能被扫描到，否则会报错
MyMapper.java
package com.tian.tkmapper;import org.springframework.stereotype.Repository;import tk.mybatis.mapper.common.Mapper;import tk.mybatis.mapper.common.MySqlMapper;@Repositorypublic interface MyMapper<T> extends Mapper<T> ,MySqlMapper<T> {}bean包下新建User类，此处使用了Lombok省略代码，@Data注解包含get/set等方法
User.java
package com.tian.tkmapper.tk.bean;import lombok.Data;@Datapublic class User { private Long id; private String name; private Integer age; private String email;}dao包下新建业务接口UserDao
UserDao.java
package com.tian.tkmapper.tk.dao;import com.tian.tkmapper.MyMapper;import com.tian.tkmapper.tk.bean.User;import org.springframework.stereotype.Repository;@Repositorypublic interface UserDao extends MyMapper<User> {}config包下新建配置类MybatisConfigurer
MybatisConfigurer.java
package com.tian.tkmapper.tk.config;import org.apache.ibatis.session.SqlSessionFactory;import org.mybatis.spring.SqlSessionFactoryBean;import org.springframework.boot.autoconfigure.AutoConfigureAfter;import org.springframework.context.annotation.Bean;import org.springframework.context.annotation.Configuration;import tk.mybatis.spring.mapper.MapperScannerConfigurer;import javax.annotation.Resource;import javax.sql.DataSource;import java.util.Properties;@Configurationpublic class MybatisConfigurer { @Resource private DataSource dataSource; @Bean public SqlSessionFactory sqlSessionFactoryBean() throws Exception { SqlSessionFactoryBean bean = new SqlSessionFactoryBean(); bean.setDataSource(dataSource); bean.setTypeAliasesPackage("com.tian.tkmapper.tk.bean"); //添加XML目录// ResourcePatternResolver resolver = new PathMatchingResourcePatternResolver();// bean.setMapperLocations(resolver.getResources("classpath:mapper/*.xml")); return bean.getObject(); } @Configuration @AutoConfigureAfter(MybatisConfigurer.class) public static class MyBatisMapperScannerConfigurer { @Bean public MapperScannerConfigurer mapperScannerConfigurer() { MapperScannerConfigurer mapperScannerConfigurer = new MapperScannerConfigurer(); mapperScannerConfigurer.setSqlSessionFactoryBeanName("sqlSessionFactoryBean"); mapperScannerConfigurer.setBasePackage("com.tian.tkmapper.tk.dao.*"); //配置通用mappers Properties properties = new Properties(); properties.setProperty("mappers", "com.tian.tkmapper.MyMapper"); properties.setProperty("notEmpty", "false"); properties.setProperty("IDENTITY", "MYSQL"); mapperScannerConfigurer.setProperties(properties); return mapperScannerConfigurer; } } }6 在启动类添加@MapperScan
package com.tian.tkmapper;import org.springframework.boot.SpringApplication;import org.springframework.boot.autoconfigure.SpringBootApplication;import tk.mybatis.spring.annotation.MapperScan;@SpringBootApplication@MapperScan(basePackages = "com.tian.tkmapper.tk.dao")//mapper接口的路径public class TkmapperApplication { public static void main(String[] args) { SpringApplication.run(TkmapperApplication.class, args); }}7 测试代码进行测试
package com.tian.tkmapper;import com.tian.tkmapper.tk.bean.User;import com.tian.tkmapper.tk.dao.UserDao;import org.junit.Assert;import org.junit.Test;import org.junit.runner.RunWith;import org.springframework.beans.factory.annotation.Autowired;import org.springframework.boot.test.context.SpringBootTest;import org.springframework.test.context.junit4.SpringRunner;import java.util.List;@RunWith(SpringRunner.class)@SpringBootTestpublic class TkmapperApplicationTests { @Autowired private UserDao userDao; @Test public void testSelect() { System.out.println(("----- selectAll method test ------")); List<User> userList = userDao.selectAll(); Assert.assertEquals(5, userList.size()); userList.forEach(System.out::println); } }最后看到显示输出为如下即成功
8 遇到的坑
a> MyMapper不能被扫描到，解决方案很多，不让启动类启动时扫描到就可以 b> 启动类中@MapperScan要引tk包下面的 import tk.mybatis.spring.annotation.MapperScan; c>pom文件依赖冲突到此，相信大家对“SpringBoot怎么整合tkMapper”有了更深的了解，不妨来实际操作一番吧！这里是编程网网站，更多相关内容可以进入相关频道进行查询，关注我们，继续学习！
