package com.dy.pipIrrGlobal.util;
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import com.fasterxml.jackson.core.JsonGenerator;
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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.text.DecimalFormat;
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/**
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* @author ZhuBaoMin
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* @date 2023/12/6 10:31
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* @LastEditTime 2023/12/6 10:31
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* @Description 小数保留2位返回给前端序列化器
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*/
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public class Double2Serializer extends JsonSerializer<Double> {
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private DecimalFormat df = new DecimalFormat("0.00");
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@Override
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public void serialize(Double data, JsonGenerator jsonGenerator, SerializerProvider serializerProvider) throws IOException {
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if (data != null) {
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if (data == 0) {
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jsonGenerator.writeString("0");
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} else {
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jsonGenerator.writeString(df.format(data));
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}
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}
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}
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//public Double2Serializer(){}
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//@Override
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//public void serialize(BigDecimal data, JsonGenerator jsonGenerator, SerializerProvider serializerProvider) throws IOException {
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// if (data != null) {
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// BigDecimal number = data.setScale(2, BigDecimal.ROUND_HALF_UP);
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// jsonGenerator.writeNumber(number);
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// // gen.writeNumber(df.format(number)); // 转换
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// } else {
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// jsonGenerator.writeNumber(data);
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// }
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//}
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}
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