java 后端

longz

2026-04-21 58c73134fb1ce10c1ea1d95ee66d8c89557d7dee

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package com.sinata.appointment.config;
 
import com.baomidou.mybatisplus.annotation.DbType;
import com.baomidou.mybatisplus.core.handlers.MetaObjectHandler;
import com.baomidou.mybatisplus.extension.plugins.MybatisPlusInterceptor;
import com.baomidou.mybatisplus.extension.plugins.inner.OptimisticLockerInnerInterceptor;
import com.baomidou.mybatisplus.extension.plugins.inner.PaginationInnerInterceptor;
import java.time.LocalDateTime;
import java.util.UUID;
import org.apache.ibatis.reflection.MetaObject;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
 
@Configuration
public class MybatisPlusConfig {
 
    @Bean
    public MybatisPlusInterceptor mybatisPlusInterceptor() {
        MybatisPlusInterceptor interceptor = new MybatisPlusInterceptor();
        interceptor.addInnerInterceptor(new PaginationInnerInterceptor(DbType.MYSQL));
        interceptor.addInnerInterceptor(new OptimisticLockerInnerInterceptor());
        return interceptor;
    }
 
    @Bean
    public MetaObjectHandler metaObjectHandler() {
        return new MetaObjectHandler() {
            @Override
            public void insertFill(MetaObject metaObject) {
                LocalDateTime now = LocalDateTime.now();
                strictInsertFill(metaObject, "createTime", LocalDateTime.class, now);
                strictInsertFill(metaObject, "updateTime", LocalDateTime.class, now);
                Object uuid = getFieldValByName("uuid", metaObject);
                if (uuid == null || (uuid instanceof String s && s.isBlank())) {
                    setFieldValByName("uuid", UUID.randomUUID().toString().replace("-", ""), metaObject);
                }
                Object version = getFieldValByName("version", metaObject);
                if (version == null) {
                    setFieldValByName("version", 1L, metaObject);
                }
                Object delFlag = getFieldValByName("delFlag", metaObject);
                if (delFlag == null) {
                    setFieldValByName("delFlag", 0, metaObject);
                }
            }
 
            @Override
            public void updateFill(MetaObject metaObject) {
                strictUpdateFill(metaObject, "updateTime", LocalDateTime.class, LocalDateTime.now());
            }
        };
    }
}