SpringBoot BigDecimal精度丢失

• jackjson自动丢弃了小数位最末尾的0
  

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private BigDecimal price; price=12.10; 返回自动转为了12.1

　　

• 解决方案
• 1: 返回字段都用字符串
• 2：BigDecimal序列化自定义处理

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package com.lenovo.lps.cost.integrator.config;   import com.fasterxml.jackson.core.JsonGenerator; import com.fasterxml.jackson.databind.JsonSerializer; import com.fasterxml.jackson.databind.SerializerProvider; import lombok.SneakyThrows;   import java.math.BigDecimal;   public class BigDecimalSerializer extends JsonSerializer<BigDecimal> {       @SneakyThrows     @Override     public void serialize(BigDecimal bigDecimal, JsonGenerator jsonGenerator, SerializerProvider serializerProvider) {         if (null != bigDecimal) {             String plainString = bigDecimal.toPlainString();             jsonGenerator.writeString(plainString);         }     } }

　　

• 在返回的对象属性上引用序列化类

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1 2	@JsonSerialize(using = BigDecimalSerializer.class) private BigDecimal variablePrice;