Java中Long类型传入前端数值出错问题

    @JsonSerialize(using = ToStringSerializer.class)
    private Long productId;

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;
 
@Configuration
public class JacksonConfig {
     @Bean
     @Primary
     @ConditionalOnMissingBean(ObjectMapper.class)
     public ObjectMapper jacksonObjectMapper(Jackson2ObjectMapperBuilder builder) {
         ObjectMapper objectMapper = builder.createXmlMapper(false).build();
         SimpleModule simpleModule = new SimpleModule();
         //Long类型----String
         simpleModule.addSerializer(Long.class, ToStringSerializer.instance);
         objectMapper.registerModule(simpleModule);
         return objectMapper;
    }
}

    @JSONField(serializeUsing = ToStringSerializer.class)
    private Long productId;

import com.alibaba.fastjson.serializer.SerializeConfig;
import com.alibaba.fastjson.serializer.ToStringSerializer;
import com.alibaba.fastjson.support.config.FastJsonConfig;
import com.alibaba.fastjson.support.spring.FastJsonHttpMessageConverter;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
 
@Configuration
public class CustomFastJsonConfig {
    @Bean
    FastJsonHttpMessageConverter fastJsonHttpMessageConverter() {
        //1.定义convert转换消息的对象
        FastJsonHttpMessageConverter converter = new FastJsonHttpMessageConverter();
        //2.添加fastJson的配置信息
        FastJsonConfig fastJsonConfig = new FastJsonConfig();
        //3.设置Long为字符串
        SerializeConfig serializeConfig = SerializeConfig.globalInstance;
        serializeConfig.put(Long.class, ToStringSerializer.instance);
        serializeConfig.put(Long.TYPE, ToStringSerializer.instance);
        fastJsonConfig.setSerializeConfig(serializeConfig);
        //4.在convert中添加配置信息.
        converter.setFastJsonConfig(fastJsonConfig);
        return converter;
    }
}