MyConfiguration.java

package cn.timer.api.config.interceptor;

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.http.HttpMessageConverters;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.http.MediaType;
import org.springframework.http.converter.StringHttpMessageConverter;

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

@Configuration
public class MyConfiguration {

    @Bean
    public HttpMessageConverters customConverters() {
        FastJsonHttpMessageConverter fastConverter = new FastJsonHttpMessageConverter();
        // 创建配置类
        FastJsonConfig config = new FastJsonConfig();
        config.setSerializerFeatures(
        		SerializerFeature.PrettyFormat
//                SerializerFeature.WriteNullListAsEmpty,
//                SerializerFeature.WriteMapNullValue,
//                SerializerFeature.WriteNullStringAsEmpty
        );

        //此处是全局处理方式
        config.setDateFormat("yyyy-MM-dd HH:mm:ss");
        config.setCharset(Charset.forName("UTF-8"));
        fastConverter.setFastJsonConfig(config);

        List<MediaType> supportedMediaTypes = new ArrayList<>();
        supportedMediaTypes.add(MediaType.ALL);
        fastConverter.setSupportedMediaTypes(supportedMediaTypes);
        //支持text 转string
        StringHttpMessageConverter stringHttpMessageConverter = new StringHttpMessageConverter();
        return new HttpMessageConverters(fastConverter, stringHttpMessageConverter);
    }
}