How Spring Boot integrates mybatis to turn on hump naming conversion

If the data source in the spring boot configuration file, the following configuration can always be added to the application.properties configuration file:

1 mybatis.configuration.mapUnderscoreToCamelCase=true
2 或
3 mybatis.configuration.map-underscore-to-camel-case=true

If it is a separately configured data source, you need to set the SqlSessionFactory in

The property mapUnderscoreToCamelCase in Configuration is true

Note this class: org.apache.ibatis.session.Configuration

package com.moon.robot.dataSource;

import com.alibaba.druid.pool.DruidDataSource;
import org.apache.ibatis.session.SqlSessionFactory;
import org.mybatis.spring.SqlSessionFactoryBean;
import org.mybatis.spring.SqlSessionTemplate;
import org.mybatis.spring.annotation.MapperScan;
import org.springframework.beans.factory.annotation.Qualifier;
import org.springframework.boot.context.properties.ConfigurationProperties;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.core.io.support.PathMatchingResourcePatternResolver;
import org.springframework.jdbc.datasource.DataSourceTransactionManager;

import javax.sql.DataSource;

@Configuration
@MapperScan(basePackages = "com.moon.robot.dao", sqlSessionTemplateRef = "robotSqlSessionTemplate")
public class RobotDataSourceConfig {

    @Bean(name = "robotDataSource")
    @ConfigurationProperties(prefix = "spring.datasource.robot")
    public DataSource setDataSource() {
        return new DruidDataSource();
    }

    @Bean(name = "robotTransactionManager")
    public DataSourceTransactionManager setTransactionManager(@Qualifier("robotDataSource") DataSource dataSource) {
        return new DataSourceTransactionManager(dataSource);
    }

    @Bean(name = "robotSqlSessionFactory")
    public SqlSessionFactory setSqlSessionFactory(@Qualifier("robotDataSource") DataSource dataSource) throws Exception {
        SqlSessionFactoryBean bean = new SqlSessionFactoryBean();
        bean.setDataSource(dataSource);

        // spring boot2.0.0暂时不支持分页，以后可能会支持
        //bean.setPlugins(new PageInterceptor[]{});

        bean.setMapperLocations(new PathMatchingResourcePatternResolver().getResources("classpath:mapper/robot/*.xml"));
        
        // 开启开启驼峰命名转换
        bean.getObject().getConfiguration().setMapUnderscoreToCamelCase(true);
        return bean.getObject();
    }

    @Bean(name = "robotSqlSessionTemplate")
    public SqlSessionTemplate setSqlSessionTemplate(@Qualifier("robotSqlSessionFactory") SqlSessionFactory sqlSessionFactory) throws Exception {
        return new SqlSessionTemplate(sqlSessionFactory);
    }
}

spring:
  datasource:
    robot:
      name: db-robot
      type: com.alibaba.druid.pool.DruidDataSource
      driver-class-name: com.mysql.jdbc.Driver
      initialize: false
      url: jdbc:mysql://localhost:3306/robot?useUnicode=true&characterEncoding=utf8&zeroDateTimeBehavior=convertToNull
      username: root
      password: 123456