關(guān)于springboot中對sqlSessionFactoryBean的自定義

更新時(shí)間：2021年12月16日 10:22:13 作者：今夕是何年？

這篇文章主要介紹了springboot中對sqlSessionFactoryBean的自定義方式，具有很好的參考價(jià)值，希望對大家有所幫助。如有錯(cuò)誤或未考慮完全的地方，望不吝賜教

springboot sqlSessionFactoryBean自定義

1.新建一個(gè)配置類，加上configuration注解

2.定制化SqlSessionFactoryBean,然后交給容器管理

代碼如下

@Configuration
public class MybatisConfig {
    @Value("${mybatis.mapper-locations}")
    private String mapperLocations;

    @Bean
    public SqlSessionFactoryBean configSqlSessionFactoryBean(DataSource dataSource) throws IOException {
        SqlSessionFactoryBean sqlSessionFactoryBean = new SqlSessionFactoryBean();
        org.apache.ibatis.session.Configuration configuration = new org.apache.ibatis.session.Configuration();
        // configuration.setLogImpl(StdOutImpl.class);//標(biāo)準(zhǔn)輸出日志
        configuration.setLogImpl(NoLoggingImpl.class);// 不輸出日志（）
        configuration.setMapUnderscoreToCamelCase(true);// 開啟駝峰命名
        configuration.setCallSettersOnNulls(true);// 開啟在屬性為null也調(diào)用setter方法

        sqlSessionFactoryBean.setConfiguration(configuration);
        sqlSessionFactoryBean.setDataSource(dataSource);
        ResourcePatternResolver resolver = new PathMatchingResourcePatternResolver();
        sqlSessionFactoryBean.setMapperLocations(resolver.getResources(mapperLocations));// 設(shè)置mapper文件掃描路徑
        return sqlSessionFactoryBean;
    }

以上配置也可以通過properties文件配置

如：

mybatis.mapper-locations=classpath:mapper/*.xml
mybatis.configuration.log-impl=org.apache.ibatis.logging.stdout.StdOutImpl
mybatis.configuration.mapUnderscoreToCamelCase=true
mybatis.configuration.call-setters-on-nulls=true

springboot啟動報(bào)找不到sqlSessionFactory

Caused by: org.springframework.beans.factory.BeanCreationException: Error creating bean with name ‘sqlSessionFactory' defined in class path resource [com/baomidou/mybatisplus/spring/boot/starter/MybatisPlusAutoConfiguration.class]: Bean instantiation via factory method failed; nested exception is org.springframework.beans.BeanInstantiationException: Failed to instantiate [org.apache.ibatis.session.SqlSessionFactory]: Factory method ‘sqlSessionFactory' threw exception; nested exception is com.baomidou.mybatisplus.exceptions.MybatisPlusException: Error: GlobalConfigUtils setMetaData Fail ! Cause:java.sql.SQLException: oracle.jdbc.OracleDriver

原因是這個(gè)電腦，這個(gè)項(xiàng)目第一次啟動，項(xiàng)目鏈接的是Oracle的數(shù)據(jù)庫，Oracle沒把自己jar包放在maven庫，要自己安裝

在maven倉庫目錄下放置Oracle的jar包

再在cmd中切換到這個(gè)目錄下運(yùn)行命令：