@Override
public void configureMessageConverters(List<HttpMessageConverter<?>> converters) {
    FastJsonHttpMessageConverter fastConvert = new FastJsonHttpMessageConverter();

    FastJsonConfig fastJsonConfig = new FastJsonConfig();
    JSON.defaultTimeZone = TimeZone.getTimeZone("Asia/Shanghai");
    JSON.DEFFAULT_DATE_FORMAT = "yyyy-MM-dd'T'HH:mm:ss.SSSZ";
    fastJsonConfig.setSerializerFeatures(SerializerFeature.BrowserCompatible,
            SerializerFeature.BrowserSecure,
            SerializerFeature.PrettyFormat,
            SerializerFeature.WriteDateUseDateFormat,
            SerializerFeature.WriteMapNullValue,
            SerializerFeature.DisableCircularReferenceDetect);
    /**
     * 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);
    fastConvert.setFastJsonConfig(fastJsonConfig);
    converters.add(fastConvert);
}
 

/**
 * fastjson的配置
 */
public FastJsonConfig fastjsonConfig() {
    FastJsonConfig fastJsonConfig = new FastJsonConfig();
    fastJsonConfig.setSerializerFeatures(
            SerializerFeature.PrettyFormat,
            SerializerFeature.WriteMapNullValue,
            SerializerFeature.WriteEnumUsingToString
    );
    fastJsonConfig.setDateFormat("yyyy-MM-dd HH:mm:ss");
    ValueFilter valueFilter = new ValueFilter() {
        public Object process(Object o, String s, Object o1) {
            if (null == o1) {
                o1 = "";
            }
            return o1;
        }
    };
    fastJsonConfig.setCharset(Charset.forName("utf-8"));
    fastJsonConfig.setSerializeFilters(valueFilter);

    //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;
}
 

/**
 * fastjson的配置
 */
public FastJsonConfig fastjsonConfig() {
    FastJsonConfig fastJsonConfig = new FastJsonConfig();
    fastJsonConfig.setSerializerFeatures(
            SerializerFeature.PrettyFormat,
            SerializerFeature.WriteMapNullValue,
            SerializerFeature.WriteEnumUsingToString,
            SerializerFeature.DisableCircularReferenceDetect
    );
    fastJsonConfig.setDateFormat("yyyy-MM-dd HH:mm:ss");
    ValueFilter valueFilter = new ValueFilter() {
        @Override
        public Object process(Object o, String s, Object o1) {
            if (null == o1) {
                o1 = "";
            }
            return o1;
        }
    };
    fastJsonConfig.setCharset(Charset.forName("utf-8"));
    fastJsonConfig.setSerializeFilters(valueFilter);

    //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;
}
 

public void setSerializers(Map<Type, ObjectSerializer> dest){
    this.put(BigInteger.class, ToStringSerializer.instance);
    this.put(Long.class, ToStringSerializer.instance);
    this.put(Long.TYPE, ToStringSerializer.instance);
    if (CollectionUtil.isNotEmpty(dest)){
        for (Entry<Type, ObjectSerializer> entry :dest.entrySet()){
            this.put(entry.getKey(), entry.getValue());
        }
    }
}