emailService/src/main/java/com/fjhx/config/mybatis/MybatisConfig.java

package com.fjhx.config.mybatis;

import com.baomidou.mybatisplus.annotation.DbType;
import com.baomidou.mybatisplus.autoconfigure.ConfigurationCustomizer;
import com.baomidou.mybatisplus.core.handlers.MetaObjectHandler;
import com.baomidou.mybatisplus.extension.MybatisMapWrapperFactory;
import com.baomidou.mybatisplus.extension.plugins.MybatisPlusInterceptor;
import com.baomidou.mybatisplus.extension.plugins.inner.OptimisticLockerInnerInterceptor;
import com.baomidou.mybatisplus.extension.plugins.inner.PaginationInnerInterceptor;
import org.mybatis.spring.annotation.MapperScan;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.transaction.annotation.EnableTransactionManagement;

/**
 * mybatis扩展插件配置
 */
@Configuration
@EnableTransactionManagement
@MapperScan("com.fjhx.**.mapper")
public class MybatisConfig {

    /**
     * 分页插件
     */
    @Bean
    public MybatisPlusInterceptor mybatisPlusInterceptorPage() {

        MybatisPlusInterceptor interceptor = new MybatisPlusInterceptor();

        // 分页
        interceptor.addInnerInterceptor(new PaginationInnerInterceptor(DbType.MYSQL));

        // 乐观锁
        interceptor.addInnerInterceptor(new OptimisticLockerInnerInterceptor());

        return interceptor;
    }

    /**
     * 自定义公共字段自动注入
     */
    @Bean
    public MetaObjectHandler metaObjectHandler() {
        return new CustomMetaObjectHandler();
    }

    /**
     * map返回查询结果时，自动转驼峰
     */
    @Bean
    public ConfigurationCustomizer configurationCustomizer() {
        return i -> i.setObjectWrapperFactory(new MybatisMapWrapperFactory());
    }

}