BigDecimal & Double 格式化

import com.fasterxml.jackson.core.JsonGenerator;
import com.fasterxml.jackson.databind.JsonSerializer;
import com.fasterxml.jackson.databind.SerializerProvider;

import java.io.IOException;
import java.text.DecimalFormat;

public class DoubleSerializer extends JsonSerializer<Double> {

    @Override
    public void serialize(Double value, JsonGenerator jsonGenerator, SerializerProvider serializerProvider) throws IOException {
        DecimalFormat df = new DecimalFormat("#,##0.00");
        String formatted = df.format(value);
        jsonGenerator.writeString(formatted);
    }
}

import com.fasterxml.jackson.core.JsonGenerator;
import com.fasterxml.jackson.databind.JsonSerializer;
import com.fasterxml.jackson.databind.SerializerProvider;

import java.io.IOException;
import java.math.BigDecimal;
import java.text.DecimalFormat;


public class BigDecimalSerializer extends JsonSerializer<BigDecimal> {

    @Override
    public void serialize(BigDecimal value, JsonGenerator jsonGenerator, SerializerProvider serializerProvider) throws IOException {
        DecimalFormat df = new DecimalFormat("#,##0.00");
        String formatted = df.format(value);
        jsonGenerator.writeString(formatted);
    }
}