实测解决 flink cdc mysql 时间字段差8小时/差13小时问题

        //自定义时间转换配置
        properties.setProperty("converters", "dateConverters");
        properties.setProperty("dateConverters.type", "com.ysservice.utils.MySqlDateTimeConverter");

        //构建mysqlSource
        MySqlSource mysqlCdcSource = MySqlSource.<String>builder()
                .hostname(FlinkConfig.source_hostname)
                .port(3306)
                .databaseList(databaseNameArray) // set captured database
                .tableList(inputTableArray) // set captured table
                .username(FlinkConfig.source_username)
                .password(FlinkConfig.source_password)
                .serverId(FlinkConfig.source_serverId)
                .serverTimeZone("Asia/Shanghai")
                .debeziumProperties(properties)
                .deserializer(new DorisJsonDebeziumDeserializationSchema(inputOutputTableName,tableConfigBean)) // 传入gp的表名映射
                .build();

package com.ysservice.utils;

import io.debezium.spi.converter.CustomConverter;
import io.debezium.spi.converter.RelationalColumn;
import org.apache.kafka.connect.data.SchemaBuilder;

import java.time.*;
import java.time.format.DateTimeFormatter;
import java.util.Properties;

/**
 * @Description:实现CustomConverter接口，重写对应方法对mysql的时间类型进行标准转换
 * @author: WuBo
 * @date:2022/10/11 11:50
 */
public class MySqlDateTimeConverter implements CustomConverter<SchemaBuilder, RelationalColumn> {

    private DateTimeFormatter dateFormatter = DateTimeFormatter.ISO_DATE;

    private DateTimeFormatter timeFormatter = DateTimeFormatter.ISO_TIME;

    private DateTimeFormatter datetimeFormatter = DateTimeFormatter.ISO_DATE_TIME;

    private DateTimeFormatter timestampFormatter = DateTimeFormatter.ISO_DATE_TIME;

    private ZoneId timestampZoneId = ZoneId.systemDefault();

    @Override
    public void configure(Properties props) {

    }

    @Override
    public void converterFor(RelationalColumn column, ConverterRegistration<SchemaBuilder> registration) {

        String sqlType = column.typeName().toUpperCase();

        SchemaBuilder schemaBuilder = null;

        Converter converter = null;

        if ("DATE".equals(sqlType)) {

            schemaBuilder = SchemaBuilder.string().optional().name("com.darcytech.debezium.date.string");

            converter = this::convertDate;

        }

        if ("TIME".equals(sqlType)) {

            schemaBuilder = SchemaBuilder.string().optional().name("com.darcytech.debezium.time.string");

            converter = this::convertTime;

        }

        if ("DATETIME".equals(sqlType)) {

            schemaBuilder = SchemaBuilder.string().optional().name("com.darcytech.debezium.datetime.string");

            converter = this::convertDateTime;


        }

        if ("TIMESTAMP".equals(sqlType)) {

            schemaBuilder = SchemaBuilder.string().optional().name("com.darcytech.debezium.timestamp.string");

            converter = this::convertTimestamp;

        }

        if (schemaBuilder != null) {

            registration.register(schemaBuilder, converter);

        }

    }


    private String convertDate(Object input) {

        if (input == null) return null;

        if (input instanceof LocalDate) {

            return dateFormatter.format((LocalDate) input);

        }

        if (input instanceof Integer) {

            LocalDate date = LocalDate.ofEpochDay((Integer) input);

            return dateFormatter.format(date);

        }

        return String.valueOf(input);

    }


    private String convertTime(Object input) {

        if (input == null) return null;

        if (input instanceof Duration) {

            Duration duration = (Duration) input;

            long seconds = duration.getSeconds();

            int nano = duration.getNano();

            LocalTime time = LocalTime.ofSecondOfDay(seconds).withNano(nano);

            return timeFormatter.format(time);

        }

        return String.valueOf(input);

    }


    private String convertDateTime(Object input) {

        if (input == null) return null;

        if (input instanceof LocalDateTime) {

            return datetimeFormatter.format((LocalDateTime) input).replaceAll("T", " ");

        }

        return String.valueOf(input);

    }


    private String convertTimestamp(Object input) {

        if (input == null) return null;

        if (input instanceof ZonedDateTime) {

            // mysql的timestamp会转成UTC存储，这里的zonedDatetime都是UTC时间

            ZonedDateTime zonedDateTime = (ZonedDateTime) input;

            LocalDateTime localDateTime = zonedDateTime.withZoneSameInstant(timestampZoneId).toLocalDateTime();

            return timestampFormatter.format(localDateTime).replaceAll("T", " ");

        }
        return String.valueOf(input);
    }
}

关键代码：

其中的：com.ysservice.utils.MySqlDateTimeConverter，根据自己的MySqlDateTimeConverter类路径进行修改

全量阶段和增量阶段的时间问题还不一样，实测本方式能全部解决，解决的同学记得回来点个赞!