spring boot 2.0添加对fastjson的支持
Posted Mr. Ma
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首先引入fastjson的maven依赖:
<dependency> <groupId>com.alibaba</groupId> <artifactId>fastjson</artifactId> <version>1.2.31</version> </dependency>
然后添加一个配置类:
package com.boot.demo; import com.alibaba.fastjson.serializer.SerializerFeature; import com.alibaba.fastjson.support.config.FastJsonConfig; import com.alibaba.fastjson.support.spring.FastJsonHttpMessageConverter; import javafx.scene.chart.Chart; import org.apache.logging.log4j.Logger; import org.springframework.context.annotation.Bean; import org.springframework.context.annotation.Configuration; import org.springframework.http.MediaType; import org.springframework.http.converter.HttpMessageConverter; import org.springframework.http.converter.StringHttpMessageConverter; import org.springframework.http.converter.json.MappingJackson2HttpMessageConverter; import org.springframework.web.servlet.config.annotation.WebMvcConfigurer; import java.nio.charset.Charset; import java.util.ArrayList; import java.util.Iterator; import java.util.List; @Configuration public class FastJsonConfiguration implements WebMvcConfigurer { @Override public void configureMessageConverters(List<HttpMessageConverter<?>> converters) { /** * 先移除MappingJackson2HttpMessageConverter转换器,再加入fastjson转换器 */ Iterator<HttpMessageConverter<?>> iterator = converters.iterator(); while(iterator.hasNext()){ HttpMessageConverter<?> converter = iterator.next(); if(converter instanceof MappingJackson2HttpMessageConverter){ iterator.remove(); } } FastJsonHttpMessageConverter fastJsonHttpMessageConverter = new FastJsonHttpMessageConverter(); //自定义配置... FastJsonConfig config = new FastJsonConfig(); config.setSerializerFeatures(SerializerFeature.DisableCircularReferenceDetect, SerializerFeature.WriteMapNullValue ,SerializerFeature.WriteNullListAsEmpty, SerializerFeature.WriteNullBooleanAsFalse, SerializerFeature.WriteNullStringAsEmpty,SerializerFeature.WriteNullNumberAsZero); fastJsonHttpMessageConverter.setFastJsonConfig(config); //解决返回的json数据中文乱码问题 List<MediaType> fastMediaTypes = new ArrayList<MediaType>(); fastMediaTypes.add(MediaType.APPLICATION_JSON_UTF8); fastJsonHttpMessageConverter.setSupportedMediaTypes(fastMediaTypes); //将转换器添加到转换列表 converters.add(fastJsonHttpMessageConverter); } }
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