使用SpringBoot如何实现集成mybatis？很多新手对此不是很清楚，为了帮助大家解决这个难题，下面小编将为大家详细讲解，有这方面需求的人可以来学习下，希望你能有所收获。
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一、使用mybatis-spring-boot-starter
1、添加依赖
org.mybatis.spring.boot
mybatis-spring-boot-starter
1.0.0
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" ?>
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" ?>
${database.url}
${database.username}
${database.password}
aop依赖
org.springframework.boot
spring-boot-starter-aop
mybatis-spring等依赖
org.mybatis
mybatis
3.3.0
compile
org.mybatis
mybatis-spring
1.2.2
compile
MySQL
mysql-connector-java
5.1.6
com.zaxxer
HikariCP-java6
2.3.8
指定xml配置文件
@Configuration
@ComponentScan( basePackages = {"com.xixicat"} )
@ImportResource("classpath:applicationContext-mybatis.xml")
@EnableAutoConfiguration
public class AppMain {
// 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;
}
//文件下载
@Bean
public HttpMessageConverters restFileDownloadSupport() {
ByteArrayHttpMessageConverter arrayHttpMessageConverter = new ByteArrayHttpMessageConverter();
return new HttpMessageConverters(arrayHttpMessageConverter);
}
public static void main(String[] args) throws Exception {
SpringApplication.run(AppMain.class, args);
}
}看完上述内容是否对您有帮助呢？如果还想对相关知识有进一步的了解或阅读更多相关文章，请关注创新互联行业资讯频道，感谢您对创新互联的支持。
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