package cn.besteam.common.util;
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import com.fasterxml.jackson.core.JsonGenerator;
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import com.fasterxml.jackson.core.JsonProcessingException;
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import com.fasterxml.jackson.databind.JsonSerializer;
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import com.fasterxml.jackson.databind.SerializerProvider;
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import java.io.IOException;
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import java.math.BigDecimal;
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import java.text.DecimalFormat;
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/**
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* 只保留一位小数
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*
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* @author chenqilong
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* @since 2020/3/13
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*/
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public class CustomDecimalSerialize extends JsonSerializer<BigDecimal> {
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private DecimalFormat df = new DecimalFormat("##.0");
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@Override
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public void serialize(BigDecimal value, JsonGenerator gen, SerializerProvider serializers) throws IOException, JsonProcessingException {
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if (value != null) {
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gen.writeString(df.format(value));
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}
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}
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}
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