SpringBoot配置fastJson生成json视图

idea创建一个SpringBoot项目

在pom文件中添加依赖

创建FastJsonConfiguration配置信息类

由于WebMvcConfigurerAdapter在Spring5已被废弃，查看源码可知，只是WebMvcConfigurer接口的一个空实现

可直接实现WebMvcConfigurer这个接口

实现如下：

import com.alibaba.fastjson.serializer.SerializerFeature;
import com.alibaba.fastjson.support.config.FastJsonConfig;
import com.alibaba.fastjson.support.spring.FastJsonHttpMessageConverter;
import org.springframework.context.annotation.Configuration;
import org.springframework.http.MediaType;
import org.springframework.http.converter.HttpMessageConverter;
import org.springframework.web.servlet.config.annotation.WebMvcConfigurer;

import java.util.ArrayList;
import java.util.List;

/**
 * @author T_liu
 * @Title: FastJsonConfiguration
 * @ProjectName sbdemo
 * @Description: fastjson配置
 * @date 2018/11/3 8:39
 */

@Configuration
public class FastJsonConfiguration implements WebMvcConfigurer {


    @Override
    public void configureMessageConverters(List<HttpMessageConverter<?>> converters) {

        //创建配置类
        FastJsonConfig config = new FastJsonConfig();

        //创建fastjson消息转换器
        FastJsonHttpMessageConverter fastConverter = new FastJsonHttpMessageConverter();

        //常用的SerializerFeatures配置
        config .setSerializerFeatures(
                SerializerFeature.DisableCircularReferenceDetect,
                SerializerFeature.WriteMapNullValue,
                SerializerFeature.WriteNullStringAsEmpty,
                SerializerFeature.WriteNullListAsEmpty,
                SerializerFeature.WriteNullBooleanAsFalse,
                SerializerFeature.WriteNullNumberAsZero
        );

        List<MediaType> mediaType = new ArrayList<>();

        fastMediaType.add(MediaType.APPLICATION_JSON_UTF8);

        fastConverter.setSupportedMediaTypes(mediaType);

        fastConverter.setFastJsonConfig(config );

        //将fastjson添加到视图消息转换器
        converters.add(fastConverter);
    }


}