SpringBoot 整合 fastjson

FastJSON配置与优化

最新推荐文章于 2022-02-23 20:45:08 发布

原创最新推荐文章于 2022-02-23 20:45:08 发布 · 575 阅读

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本文详细介绍了如何在Spring Boot项目中配置和优化FastJSON，包括依赖配置、配置类的设置，以及解决Long类型数据精度丢失等问题的方法。

依赖配置

<dependency>
    <groupId>com.alibaba</groupId>
    <artifactId>fastjson</artifactId>
    <version>1.2.56</version>
</dependency>

配置类配置

@Configuration("defaultFastjsonConfig")
@ConditionalOnClass(com.alibaba.fastjson.JSON.class)
@ConditionalOnMissingBean(FastJsonHttpMessageConverter.class)
@ConditionalOnWebApplication
public class DefaultFastjsonConfig {

    @Bean
    public FastJsonHttpMessageConverter fastJsonHttpMessageConverter() {
        FastJsonHttpMessageConverter converter = new FastJsonHttpMessageConverter();
        converter.setFastJsonConfig(fastjsonConfig());
        converter.setSupportedMediaTypes(getSupportedMediaType());
        return converter;
    }

    /**
     * fastjson的配置
     */
    public FastJsonConfig fastjsonConfig() {
        FastJsonConfig fastJsonConfig = new FastJsonConfig();
        fastJsonConfig.setSerializerFeatures(
                SerializerFeature.PrettyFormat,
                SerializerFeature.WriteEnumUsingToString
        );
        fastJsonConfig.setDateFormat("yyyy-MM-dd HH:mm:ss");
        fastJsonConfig.setCharset(Charset.forName("utf-8"));

        //解决Long转json精度丢失的问题
        SerializeConfig serializeConfig = SerializeConfig.globalInstance;
        serializeConfig.put(BigInteger.class, ToStringSerializer.instance);
        serializeConfig.put(Long.class, ToStringSerializer.instance);
        serializeConfig.put(Long.TYPE, ToStringSerializer.instance);
        fastJsonConfig.setSerializeConfig(serializeConfig);
        return fastJsonConfig;
    }

    /**
     * 支持的mediaType类型
     */
    public List<MediaType> getSupportedMediaType() {
        ArrayList<MediaType> mediaTypes = new ArrayList<>();
        mediaTypes.add(MediaType.APPLICATION_JSON_UTF8);
        return mediaTypes;
    }
}