1.第一种构建是使用springboot的方式，

    	
     
      org.springframework.boot
     	
     
      spring-boot-starter-web
     	
     
      ${spring.boot.version}
     
    
    	
     
      org.springframework.boot
     	
     
      mybatis-spring-boot-starter
     	
     
      ${spring.boot.version}
     
    
    	
     
      org.springframework.boot
     	
     
      spring-boot-starter-aop
     	
     
      ${spring.boot.version}
     
    

spring boot会根据自己的需要引入相对应版本的mybatis

2.第二种，自己引用对应的mybatis版本

    	
     
      org.mybatis
     	
     
      mybatis
     	
     
      ${mybatis.version}
     
    
    	
     
      org.mybatis
     	
     
      mybatis-spring
     	
     
      ${spring.mybatis.version}
     
    
    
     	
     
      com.github.pagehelper
     	
     
      pagehelper
     	
     
      ${mybatis.page.version}
     
    
    
    	
     
      com.alibaba
     	
     
      druid
     	
     
      ${druid.version}
     
    
    
    	
     
      mysql
     	
     
      mysql-connector-java
     	
     
      ${mysql.version}
     
    

对应的版本为

    
     1.3.6.RELEASE
    
    
     1.1.1
    
    
     3.4.0
    
    
     1.3.0
    
    
     1.0.22
    
    
     5.1.26
    
    
     4.1.6
    

通过入口启动内嵌的tomcat，

@SpringBootApplication@ComponentScan(basePackages = "com.capacity")public class BootApp extends WebMvcConfigurerAdapter {	public static void main(String[] args) {		SpringApplication.run(BootApp.class, args);	}}

@SpringBootApplication annotation is equivalent to using @Configuration, @EnableAutoConfiguration and @ComponentScan

@ComponentScan组件扫描

下来是mybatis配置：

@Configuration@EnableTransactionManagement@MapperScan("com.capacity.dto")public class MybatisConfig implements TransactionManagementConfigurer {	@Autowired	DataSource dataSource;	@Bean	public SqlSessionFactory sqlSessionFactory() {		SqlSessionFactoryBean bean = new SqlSessionFactoryBean();		bean.setDataSource(dataSource);		bean.setTypeAliasesPackage("com.capacity.domain");		PageHelper pageHelper = new PageHelper();		Properties properties = new Properties();		properties.setProperty("reasonable", "true");		properties.setProperty("supportMethodsArguments", "true");		properties.setProperty("returnPageInfo", "check");		properties.setProperty("params", "count=countSql");		pageHelper.setProperties(properties);		// 添加插件		bean.setPlugins(new Interceptor[] { pageHelper });		// 添加xml目录		ResourcePatternResolver resolver = new PathMatchingResourcePatternResolver();		try {			bean.setMapperLocations(resolver.getResources("classpath:/mybatis/**/**/*.xml"));			return bean.getObject();		} catch (Exception e) {			e.printStackTrace();			throw new RuntimeException(e);		}	}	@Bean	public SqlSessionTemplate sqlSessionTemplate(SqlSessionFactory sqlSessionFactory) {		return new SqlSessionTemplate(sqlSessionFactory);	}	@Bean	@Override	public PlatformTransactionManager annotationDrivenTransactionManager() {		return new DataSourceTransactionManager(dataSource);	}

可以添加拦截器：

public class WebAppConfig extends WebMvcAutoConfigurationAdapter {	public void addInterceptor(InterceptorRegistry registry) {		registry.addInterceptor(new UserSecurityInterceptor()).addPathPatterns("/user/**");	}}

这里的配置文件用的是yml格式，不过配置文件好像名字默认是application，不能改，如果要改要用命令行加参数的方式

基本核心代码完了，可以试着建一个dao或者mapper，在建立一个Controller调用一下