FastJson 的一些配置

主要提到：关闭循环引用的配置

"$ref":"$.data[0].detail.wmsInboundorder.details[1]"

如下：

import com.alibaba.fastjson.serializer.SerializeConfig;
import com.alibaba.fastjson.serializer.SerializerFeature;
import com.alibaba.fastjson.support.config.FastJsonConfig;
import com.alibaba.fastjson.support.spring.FastJsonHttpMessageConverter;
import org.springframework.boot.autoconfigure.web.HttpMessageConverters;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.http.MediaType;
import org.springframework.http.converter.HttpMessageConverter;
 
import java.nio.charset.Charset;
import java.util.ArrayList;
import java.util.List;
 
/**
 * 自定义JSON转换器
 * 
 * @author larry.qi
 */
@Configuration
public class FastJSONConfiguration {
 
    @Bean
    public HttpMessageConverters httpMessageConverters() {
        HttpMessageConverter<?> fastjson = fastJsonHttpMessageConverter();
        return new HttpMessageConverters(fastjson);
    }
    
    @Bean
    public FastJsonHttpMessageConverter fastJsonHttpMessageConverter() {
        FastJsonHttpMessageConverter messageConverter = new FastJsonHttpMessageConverter();
        //set MediaTypes
        List<MediaType> supportedMediaTypes = new ArrayList<MediaType>();
        supportedMediaTypes.add(MediaType.APPLICATION_JSON);
        supportedMediaTypes.add(MediaType.TEXT_HTML);
        supportedMediaTypes.add(MediaType.TEXT_PLAIN);
        messageConverter.setSupportedMediaTypes(supportedMediaTypes);
 
        //fastJsonConfig
        FastJsonConfig fastJsonConfig = new FastJsonConfig();
        fastJsonConfig.setDateFormat("yyyy-MM-dd HH:mm:ss");
        fastJsonConfig.setCharset(Charset.forName("UTF-8"));
        fastJsonConfig.setSerializerFeatures(
                SerializerFeature.QuoteFieldNames, // 双引号
                SerializerFeature.WriteMapNullValue, // 输入空值字段
                SerializerFeature.WriteEnumUsingToString, // 枚举输出STRING
                SerializerFeature.WriteNullBooleanAsFalse, // 布尔类型如果为null输出false
                SerializerFeature.WriteNullListAsEmpty, // List字段如果为null输出为[]
                //SerializerFeature.WriteNullNumberAsZero, // number类型如果为null输出0
                //SerializerFeature.WriteNullStringAsEmpty, // 字符串类型如果为null输出""
                SerializerFeature.SortField, // 按字段名称排序后进行输出
                SerializerFeature.WriteDateUseDateFormat,// 设置日期格式
                SerializerFeature.DisableCircularReferenceDetect  //关闭循环引用
        );
        
        //SerializeConfig
        SerializeConfig config =new SerializeConfig();
        fastJsonConfig.setSerializeConfig(config);
        
        messageConverter.setFastJsonConfig(fastJsonConfig);
        return messageConverter;
    }
    
    
}