findme-backend-merchant-java/src/main/java/com/xjhs/findmemerchant/common/jackson/SafeLongDeserializer.java

package com.xjhs.findmemerchant.common.jackson;

import com.fasterxml.jackson.core.JsonParser;
import com.fasterxml.jackson.databind.DeserializationContext;
import com.fasterxml.jackson.databind.JsonDeserializer;

import java.io.IOException;

public class SafeLongDeserializer  extends JsonDeserializer<Long> {
    @Override
    public Long deserialize(JsonParser p, DeserializationContext ctxt) throws IOException {
        String value = p.getText();
        if (value == null || value.isBlank()) {
            return null;
        }
        return Long.valueOf(value);
    }
}