package com.stylefeng.guns.config;

import com.alibaba.fastjson.serializer.SerializerFeature;
import com.alibaba.fastjson.serializer.ValueFilter;
import com.alibaba.fastjson.support.config.FastJsonConfig;
import com.alibaba.fastjson.support.spring.FastJsonHttpMessageConverter4;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.http.MediaType;

import java.nio.charset.Charset;
import java.util.ArrayList;

/**
 * fastjson配置类
 *
 * @author fengshuonan
 * @date 2017-05-23 22:56
 */
@Configuration
public class FastjsonConfig {

    @Bean
    public FastJsonHttpMessageConverter4 fastJsonHttpMessageConverter() {
        FastJsonHttpMessageConverter4 converter = new FastJsonHttpMessageConverter4();
        FastJsonConfig fastJsonConfig = new FastJsonConfig();
        fastJsonConfig.setSerializerFeatures(
                SerializerFeature.PrettyFormat,
                SerializerFeature.WriteMapNullValue
        );
        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);
        converter.setFastJsonConfig(fastJsonConfig);

        ArrayList<MediaType> mediaTypes = new ArrayList<>();
        mediaTypes.add(MediaType.APPLICATION_JSON_UTF8);
        converter.setSupportedMediaTypes(mediaTypes);
        return converter;
    }

}
