FastJsonHttpMessageConverter

r囧r小猫 2023-07-08 14:24 15阅读 0赞

package com.xxx.config;
    
    import com.alibaba.fastjson.serializer.SerializeConfig;
    import com.alibaba.fastjson.serializer.SerializerFeature;
    import com.alibaba.fastjson.serializer.ToStringSerializer;
    import com.alibaba.fastjson.serializer.ValueFilter;
    import com.alibaba.fastjson.support.config.FastJsonConfig;
    import com.alibaba.fastjson.support.spring.FastJsonHttpMessageConverter;
    import org.springframework.boot.autoconfigure.condition.ConditionalOnClass;
    import org.springframework.boot.autoconfigure.condition.ConditionalOnMissingBean;
    import org.springframework.boot.autoconfigure.condition.ConditionalOnWebApplication;
    import org.springframework.context.annotation.Bean;
    import org.springframework.context.annotation.Configuration;
    import org.springframework.http.MediaType;
    
    import java.math.BigInteger;
    import java.nio.charset.Charset;
    import java.util.ArrayList;
    import java.util.List;
    
    /**
     * fastjson配置类
     */
    @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.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;
        }
    
        /**
         * 支持的mediaType类型
         */
        public List<MediaType> getSupportedMediaType() {
            ArrayList<MediaType> mediaTypes = new ArrayList<>();
            mediaTypes.add(MediaType.APPLICATION_JSON_UTF8);
            return mediaTypes;
        }
    
    }