SpringBoot 配置FastJson

SpringBoot 配置FastJson , Google百度一下一大堆 , 我就貼一下個人方式:

• extends org.springframework.web.servlet.config.annotation.WebMvcConfigurerAdapter
• Override configureMessageConverters

public class FastjsonConfig extends WebMvcConfigurerAdapter {

    @Override
    public void configureMessageConverters(List<HttpMessageConverter<?>> converters) {
        super.configureMessageConverters(converters);
		//fastjson MessageConverter
        FastJsonHttpMessageConverter fastConverter = new FastJsonHttpMessageConverter();
		//fastjson config
        FastJsonConfig fastJsonConfig = new FastJsonConfig();
        fastJsonConfig.setSerializerFeatures(SerializerFeature.WriteMapNullValue);
        
        List<MediaType> fastMediaTypes = new ArrayList<>();
		//MediaType : application/json;charset=UTF-8
        fastMediaTypes.add(MediaType.APPLICATION_JSON_UTF8);
		
        fastConverter.setSupportedMediaTypes(fastMediaTypes);
        //fastjson config add to converter
        fastConverter.setFastJsonConfig(fastJsonConfig);
        
        HttpMessageConverter<?> converter = fastConverter;
		//String MessageConverter , charset : UTF-8
        StringHttpMessageConverter stringConverter  = new StringHttpMessageConverter(Charset.forName("UTF-8"));
		//remove response accept charset
        stringConverter.setWriteAcceptCharset(false);
		//config StringHttpMessageConverter MediaType
        List<MediaType> stringSupportedMediaTypes = stringConverter.getSupportedMediaTypes();
        //StringHttpMessageConverter MediaType : application/json;charset=UTF-8
        stringSupportedMediaTypes.add(MediaType.APPLICATION_JSON_UTF8);
        stringConverter.setSupportedMediaTypes(stringSupportedMediaTypes);

        converters.add(stringConverter);
        converters.add(converter);
    }
}

1. FastJsonHttpMessageConverter 在FastJson包裏,直接引入就能夠了.
2. fastMediaTypes.add(MediaType.APPLICATION_JSON_UTF8); // 配置fastjson支持的mediaType爲utf8,支持中文
3. 配置StringHttpMessageConverter
   • 不配置StringHttpMessageConverter的話
   • return "abc";
   • 通過fastjson處理後 , 拿到的是 "\"abc\"";
4. 配置StringHttpMessageConverter 的 MediaType 爲: application/json;charset=UTF-8, 支持中文
5. 將兩個Converter添加到list

OVER !