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  • 接口的json返回格式配置:fastJson

    首先引入fastJson的依赖:

    <properties>
        <fastjson.version>1.2.15</fastjson.version>
    </properties>
    
    <!-- fastjson 数据json格式化工具 -->
    <dependency>
        <groupId>com.alibaba</groupId>
        <artifactId>fastjson</artifactId>
        <version>${fastjson.version}</version>
    </dependency>
    <!-- fastjson 数据json格式化工具 -->

    在项目的web config类加入下列配置:

    import com.alibaba.fastjson.serializer.SerializerFeature;
    import com.alibaba.fastjson.support.config.FastJsonConfig;
    import com.alibaba.fastjson.support.spring.FastJsonHttpMessageConverter4;
    import org.springframework.beans.factory.annotation.Autowired;
    import org.springframework.beans.factory.annotation.Qualifier;
    import org.springframework.boot.autoconfigure.http.HttpMessageConverters;
    import org.springframework.context.annotation.Bean;
    import org.springframework.context.annotation.Configuration;
    import org.springframework.web.servlet.config.annotation.InterceptorRegistry;
    import org.springframework.web.servlet.config.annotation.WebMvcConfigurer;
    import simple.proj.zxz.play.interceptors.ApiAccessInterceptor;
    import simple.proj.zxz.play.prop.CommProp;
    
    /**
     * web配置
     *
     * @author zhangxz
     * 2019/10/25
     */
    @Configuration
    public class WebConfig implements WebMvcConfigurer {
    
        @Autowired
        private CommProp commProp;
    
        @Bean
        public FastJsonConfig fastJsonConfig() {
            FastJsonConfig fastJsonConfig = new FastJsonConfig();
    
            fastJsonConfig.setSerializerFeatures(
                    //输出null值
                    SerializerFeature.WriteMapNullValue,
                    //数组的null输出为空数组:[]
                    SerializerFeature.WriteNullListAsEmpty,
                    //禁止json的循环引用
                    SerializerFeature.DisableCircularReferenceDetect,
    
    //                SerializerFeature.WriteDateUseDateFormat,
                    //字符串的null输出为空字符串:""
                    SerializerFeature.WriteNullStringAsEmpty);
    
            return fastJsonConfig;
        }
    
        @Bean
        public HttpMessageConverters fastJsonHttpMessageConverters(
                @Qualifier("fastJsonConfig") FastJsonConfig fastJsonConfig) {
            FastJsonHttpMessageConverter4 fastConverter = new FastJsonHttpMessageConverter4();
            fastConverter.setFastJsonConfig(fastJsonConfig);
    
            return new HttpMessageConverters(fastConverter);
        }
    
    }
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  • 原文地址:https://www.cnblogs.com/zhangxuezhi/p/11812322.html
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