springboot解决Long /BigInteger /BigDecimal类型数据传给前端损失精度问题

我就是我 2023-03-13 12:20 15阅读 0赞

import com.fasterxml.jackson.databind.ObjectMapper;
    import com.fasterxml.jackson.databind.module.SimpleModule;
    import com.fasterxml.jackson.databind.ser.std.ToStringSerializer;
    import com.fasterxml.jackson.datatype.jsr310.JavaTimeModule;
    import org.springframework.context.annotation.Bean;
    import org.springframework.context.annotation.Configuration;
    import org.springframework.context.annotation.Primary;
    import org.springframework.http.converter.json.Jackson2ObjectMapperBuilder;
    
    import java.math.BigDecimal;
    import java.math.BigInteger;
    
    /**
     * 参数返回到前端，将Long /BigInteger /BigDecimal转换成String
     * @author xrj
     * @date 2020/5/13
     */
    @Configuration
    public class WebMvcAutoConfiguration {
    
    
        /**
         * 初始化对象
         * @param builder
         */
        @Bean
        @Primary
        public ObjectMapper jacksonObjectMapper(Jackson2ObjectMapperBuilder builder) {
            final JavaTimeModule simpleModule = new JavaTimeModule();
           //序列化将Long转String类型
            simpleModule.addSerializer(Long.class, ToStringSerializer.instance);
            simpleModule.addSerializer(Long.TYPE, ToStringSerializer.instance);
            SimpleModule bigIntegerModule = new SimpleModule();
            //序列化将BigInteger转String类型
            bigIntegerModule.addSerializer(BigInteger.class, ToStringSerializer.instance);
            SimpleModule bigDecimalModule = new SimpleModule();
            //序列化将BigDecimal转String类型
            bigDecimalModule.addSerializer(BigDecimal.class, ToStringSerializer.instance);
            return builder.createXmlMapper(false).modulesToInstall(simpleModule).build();
        }
    }

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