SpringBoot集成mybatis

一、使用mybatis-spring-boot-starter

1、添加依赖

<dependency>
    <groupId>org.mybatis.spring.boot</groupId> <artifactId>mybatis-spring-boot-starter</artifactId> <version>1.0.0</version> </dependency>

2、启动时导入指定的sql(application.properties)

spring.datasource.schema=import.sql

3、annotation形式

@SpringBootApplication
@MapperScan("sample.mybatis.mapper")
public class SampleMybatisApplication implements CommandLineRunner { @Autowired private CityMapper cityMapper; public static void main(String[] args) { SpringApplication.run(SampleMybatisApplication.class, args); } @Override public void run(String... args) throws Exception { System.out.println(this.cityMapper.findByState("CA")); } }

4、xml方式

mybatis-config.xml

<?xml version="1.0" encoding="UTF-8" ?> <!DOCTYPE configuration PUBLIC "-//mybatis.org//DTD Config 3.0//EN" "http://mybatis.org/dtd/mybatis-3-config.dtd"> <configuration> <typeAliases> <package name="sample.mybatis.domain"/> </typeAliases> <mappers> <mapper resource="sample/mybatis/mapper/CityMapper.xml"/> </mappers> </configuration>

application.properties

spring.datasource.schema=import.sql
mybatis.config=mybatis-config.xml

mapper

@Component
public class CityMapper { @Autowired private SqlSessionTemplate sqlSessionTemplate; public City selectCityById(long id) { return this.sqlSessionTemplate.selectOne("selectCityById", id); } }

二、手工集成

1、annotation方式

@Configuration
@MapperScan("com.xixicat.modules.dao")
@PropertySources({ @PropertySource(value = "classpath:application.properties", ignoreResourceNotFound = true), @PropertySource(value = "file:./application.properties", ignoreResourceNotFound = true) }) public class MybatisConfig { @Value("${name:}") private String name; @Value("${database.driverClassName}") private String driverClass; @Value("${database.url}") private String jdbcUrl; @Value("${database.username}") private String dbUser; @Value("${database.password}") private String dbPwd; @Value("${pool.minPoolSize}") private int minPoolSize; @Value("${pool.maxPoolSize}") private int maxPoolSize; @Bean public Filter characterEncodingFilter() { CharacterEncodingFilter characterEncodingFilter = new CharacterEncodingFilter(); characterEncodingFilter.setEncoding("UTF-8"); characterEncodingFilter.setForceEncoding(true); return characterEncodingFilter; } @Bean(destroyMethod = "close") public DataSource dataSource(){ HikariConfig hikariConfig = new HikariConfig(); hikariConfig.setDriverClassName(driverClass); hikariConfig.setJdbcUrl(jdbcUrl); hikariConfig.setUsername(dbUser); hikariConfig.setPassword(dbPwd); hikariConfig.setPoolName("springHikariCP"); hikariConfig.setAutoCommit(false); hikariConfig.addDataSourceProperty("cachePrepStmts", "true"); hikariConfig.addDataSourceProperty("prepStmtCacheSize", "250"); hikariConfig.addDataSourceProperty("prepStmtCacheSqlLimit", "2048"); hikariConfig.addDataSourceProperty("useServerPrepStmts", "true"); hikariConfig.setMinimumIdle(minPoolSize); hikariConfig.setMaximumPoolSize(maxPoolSize); hikariConfig.setConnectionInitSql("SELECT 1"); HikariDataSource dataSource = new HikariDataSource(hikariConfig); return dataSource; } @Bean public PlatformTransactionManager transactionManager() { return new DataSourceTransactionManager(dataSource()); } @Bean public SqlSessionFactory sqlSessionFactory() throws Exception { SqlSessionFactoryBean sessionFactory = new SqlSessionFactoryBean(); sessionFactory.setDataSource(dataSource()); sessionFactory.setFailFast(true); sessionFactory.setConfigLocation(new ClassPathResource("mybatis-config.xml")); return sessionFactory.getObject(); } }

点评

这种方式有点别扭，而且配置不了拦截式事务拦截，只能采用注解声明，有些冗余

2、xml方式

数据源

<?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.xixicat.domain"/> <!-- 配置扫描Mapper XML的位置 --> <property name="mapperLocations" value="classpath:com/xixicat/modules/dao/*.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.xixicat.repository.mapper"/> </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