背景
Spring Boot集成Mybatis的配置方式有很多种，可以使用mybatis-spring-boot-starter、注解方式、传统集成方式等。本文采用的是传统方式，因为集成最为直接，而且事务配置也比较容易上手。
添加依赖
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>1.4.0.RELEASE</version>
<relativePath/>
</parent>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-aop</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-devtools</artifactId>
</dependency>
<dependency>
<groupId>org.mybatis.spring.boot</groupId>
<artifactId>mybatis-spring-boot-starter</artifactId>
<version>1.1.1</version>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-jdbc</artifactId>
<exclusions>
<exclusion>
<!-- 取消引入tomcat jdbc -->
<groupId>org.apache.tomcat</groupId>
<artifactId>tomcat-jdbc</artifactId>
</exclusion>
</exclusions>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-jdbc</artifactId>
</dependency>
<dependency>
<groupId>org.apache.tomcat</groupId>
<artifactId>tomcat-juli</artifactId>
<version>${tomcat.version}</version>
</dependency>
<!-- MyBatis Dependency Begin -->
<dependency>
<groupId>org.mybatis</groupId>
<artifactId>mybatis</artifactId>
<version>3.4.1</version>
</dependency>
<dependency>
<groupId>org.mybatis</groupId>
<artifactId>mybatis-spring</artifactId>
<version>1.3.0</version>
</dependency>
<dependency>
<groupId>com.zaxxer</groupId>
<artifactId>HikariCP-java7</artifactId>
<version>2.4.9</version>
</dependency>
</dependencies>
配置数据源
applicationContext-mybatis.xml
<?xml version="1.0" encoding="UTF-8" ?>
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:p="http://www.springframework.org/schema/p"
xmlns:tx="http://www.springframework.org/schema/tx"
xmlns:aop="http://www.springframework.org/schema/aop"
xmlns:context="http://www.springframework.org/schema/context"
xsi:schemaLocation="http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans-4.0.xsd
http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-4.0.xsd
http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-4.0.xsd
http://www.springframework.org/schema/tx
http://www.springframework.org/schema/tx/spring-tx-4.0.xsd">
<context:property-placeholder ignore-unresolvable="true" />
<bean id="hikariConfig" class="com.zaxxer.hikari.HikariConfig">
<property name="poolName" value="springHikariCP" />
<property name="connectionTestQuery" value="SELECT 1" />
<property name="dataSourceClassName" value="${database.dataSourceClassName}" />
<property name="maximumPoolSize" value="${pool.maxPoolSize}" />
<property name="idleTimeout" value="${pool.idleTimeout}" />
<property name="dataSourceProperties">
<props>
<prop key="url">${database.url}</prop>
<prop key="user">${database.username}</prop>
<prop key="password">${database.password}</prop>
</props>
</property>
</bean>
<!-- HikariCP configuration -->
<bean id="dataSource" class="com.zaxxer.hikari.HikariDataSource" destroy-method="close">
<constructor-arg ref="hikariConfig" />
</bean>
<bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
<property name="dataSource" ref="dataSource"/>
<!-- 配置mybatis配置文件的位置 -->
<property name="configLocation" value="classpath:mybatis-config.xml"/>
<property name="typeAliasesPackage" value="com.***.server.domain"/>
<!-- 配置扫描Mapper XML的位置 -->
<property name="mapperLocations" value="classpath:mybatis/*.xml"/>
</bean>
<!-- 配置扫描Mapper接口的包路径 -->
<bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
<property name="sqlSessionFactoryBeanName" value="sqlSessionFactory"/>
<property name="basePackage" value="com.***.server.dao"/>
</bean>
<bean id="sqlSessionTemplate" class="org.mybatis.spring.SqlSessionTemplate">
<constructor-arg ref="sqlSessionFactory"/>
</bean>
<bean id="transactionManager"
class="org.springframework.jdbc.datasource.DataSourceTransactionManager"
p:dataSource-ref="dataSource"/>
<aop:aspectj-autoproxy expose-proxy="true" proxy-target-class="true" />
<tx:advice id="txAdvice" transaction-manager="transactionManager" >
<tx:attributes>
<tx:method name="start*" propagation="REQUIRED"/>
<tx:method name="submit*" propagation="REQUIRED"/>
<tx:method name="clear*" propagation="REQUIRED"/>
<tx:method name="create*" propagation="REQUIRED"/>
<tx:method name="activate*" propagation="REQUIRED"/>
<tx:method name="save*" propagation="REQUIRED"/>
<tx:method name="insert*" propagation="REQUIRED"/>
<tx:method name="add*" propagation="REQUIRED"/>
<tx:method name="update*" propagation="REQUIRED"/>
<tx:method name="delete*" propagation="REQUIRED"/>
<tx:method name="remove*" propagation="REQUIRED"/>
<tx:method name="execute*" propagation="REQUIRED"/>
<tx:method name="del*" propagation="REQUIRED"/>
<tx:method name="*" read-only="true"/>
</tx:attributes>
</tx:advice>
<aop:config proxy-target-class="true" expose-proxy="true">
<aop:pointcut id="pt" expression="execution(public * com.***.server.service.*.*(..))" />
<aop:advisor order="200" pointcut-ref="pt" advice-ref="txAdvice"/>
</aop:config>
</beans>
SpringApplication
@Configuration
@ComponentScan(basePackages = {"com****server"})
@EnableAutoConfiguration
@ImportResource("classpath:applicationContext-mybatis.xml")
@SpringBootApplication
public class Application {
public static void main(String[] args) {
SpringApplication.run(Application.class, args);
}
//文件下载
@Bean
public HttpMessageConverters restFileDownloadSupport() {
ByteArrayHttpMessageConverter arrayHttpMessageConverter = new ByteArrayHttpMessageConverter();
return new HttpMessageConverters(arrayHttpMessageConverter);
}
// 用于处理编码问题
@Bean
public Filter characterEncodingFilter() {
CharacterEncodingFilter characterEncodingFilter = new CharacterEncodingFilter();
characterEncodingFilter.setEncoding("UTF-8");
characterEncodingFilter.setForceEncoding(true);
return characterEncodingFilter;
}
@Bean
public EmbeddedServletContainerCustomizer containerCustomizer() {
return new EmbeddedServletContainerCustomizer() {
@Override
public void customize(ConfigurableEmbeddedServletContainer container) {
ErrorPage error401Page = new ErrorPage(HttpStatus.UNAUTHORIZED, "/401.html");
ErrorPage error404Page = new ErrorPage(HttpStatus.NOT_FOUND, "/404.html");
ErrorPage error500Page = new ErrorPage(HttpStatus.INTERNAL_SERVER_ERROR, "/500.html");
container.addErrorPages(error401Page, error404Page, error500Page);
}
};
}
}
其他
HikariCP号称性能最好的JDBC连接池，后续研究一下。
搭建SpringBoot过程中，遇到了一些坑，大多是jar版本冲突等造成的。
欢迎关注 高广超的简书博客 与 收藏文章 ！
欢迎关注 头条号：互联网技术栈 ！
个人介绍：
** 高广超** ：多年一线互联网研发与架构设计经验，擅长设计与落地高可用、高性能互联网架构。目前就职于美团网，负责核心业务研发工作。
本文首发在 高广超的简书博客 转载请注明！
image.png