解决前后端交互Long类型精度丢失的问题

1、全局注解

package com.jiawa.train.common.config;

import com.fasterxml.jackson.databind.ObjectMapper;
import com.fasterxml.jackson.databind.module.SimpleModule;
import com.fasterxml.jackson.databind.ser.std.ToStringSerializer;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.http.converter.json.Jackson2ObjectMapperBuilder;

/**
 * 统一注解，解决前后端交互Long类型精度丢失的问题
@Configuration
public class JacksonConfig {
    @Bean
    public ObjectMapper jacksonObjectMapper(Jackson2ObjectMapperBuilder builder) {
        ObjectMapper objectMapper = builder.createXmlMapper(false).build();
        SimpleModule simpleModule = new SimpleModule();
        simpleModule.addSerializer(Long.class, ToStringSerializer.instance);
        objectMapper.registerModule(simpleModule);
        return objectMapper;
    }
}

2、单独配置

使用注解就可以解决问题。

 /**
     * id
     */
    @JsonSerialize(using= ToStringSerializer.class)
    private Long id;

    /**
     * 会员id
     */
    @JsonSerialize(using= ToStringSerializer.class)
    private Long memberId;