问题:

由于fastjson配置了命名规则,导致/actuator/metrics接口和接口返回的数据,键值转换为下划线格式,进而导致前端页面无法正确解析.

解决思路

思路一:

修改spring boot admin源码,将前端解析的字段修改为下划线格式(ps:我没试过,感兴趣的同学可以试试,以前解决`swagger-ui`类似问题的时候我这么处理过).

思路二:

通过修改fastjson配置,将/actuator/metrics和/actuator/env接口返回的数据配置为序列化时不进行命名格式的转换.
废话不多少先上代码

原配置

 @Bean
    public FastJsonHttpMessageConverter getFastJsonHttpMessageConverter() {
        FastJsonHttpMessageConverter fastConverter = new FastJsonHttpMessageConverter();

        List<MediaType> fastMediaTypes = new ArrayList<>();
        fastMediaTypes.add(MediaType.APPLICATION_JSON);
        fastMediaTypes.add(MediaType.APPLICATION_FORM_URLENCODED);
        fastMediaTypes.add(MediaType.APPLICATION_OCTET_STREAM);
        fastMediaTypes.add(MediaType.TEXT_HTML);
        fastConverter.setSupportedMediaTypes(fastMediaTypes);
        FastJsonConfig fastJsonConfig = geFastJsonConfig();
        fastConverter.setFastJsonConfig(fastJsonConfig);

        return fastConverter;
    }
    
@Bean
    public FastJsonConfig geFastJsonConfig() {
        FastJsonConfig fastJsonConfig = new FastJsonConfig();
        SerializeConfig serializeConfig = new SerializeConfig();
        serializeConfig.propertyNamingStrategy = PropertyNamingStrategy.SnakeCase;
        fastJsonConfig.setSerializeConfig(serializeConfig);
        fastJsonConfig.setDateFormat(JSON.DEFFAULT_DATE_FORMAT);
        fastJsonConfig.setSerializerFeatures(SerializerFeature.PrettyFormat);
        return fastJsonConfig;
    }

修改后的配置

@Bean
    public FastJsonHttpMessageConverter getFastJsonHttpMessageConverter() {
        FastJsonHttpMessageConverter fastConverter = new FastJsonHttpMessageConverter();

        List<MediaType> fastMediaTypes = new ArrayList<>();
        fastMediaTypes.add(MediaType.APPLICATION_JSON);
        fastMediaTypes.add(MediaType.APPLICATION_FORM_URLENCODED);
        fastMediaTypes.add(MediaType.APPLICATION_OCTET_STREAM);
        fastMediaTypes.add(MediaType.TEXT_HTML);
        fastMediaTypes.add(new MediaType("application", "vnd.spring-boot.actuator.v2+json"));
        fastConverter.setSupportedMediaTypes(fastMediaTypes);
        FastJsonConfig fastJsonConfig = geFastJsonConfig();
        fastConverter.setFastJsonConfig(fastJsonConfig);

        return fastConverter;
    }
    
    @Bean
    public FastJsonConfig geFastJsonConfig() {
        FastJsonConfig fastJsonConfig = new FastJsonConfig();
        SerializeConfig serializeConfig = new SerializeConfig();
        NameFilter nameFilter = (object, name, value) -> name;
        serializeConfig.addFilter(UiConfiguration.class, nameFilter);
        serializeConfig.addFilter(SwaggerResource.class, nameFilter);
        serializeConfig.addFilter(MetricsEndpoint.MetricResponse.class, nameFilter);
        serializeConfig.addFilter(EnvironmentEndpoint.EnvironmentDescriptor.class, nameFilter);
        serializeConfig.propertyNamingStrategy = PropertyNamingStrategy.SnakeCase;
        fastJsonConfig.setSerializeConfig(serializeConfig);
        fastJsonConfig.setDateFormat(JSON.DEFFAULT_DATE_FORMAT);
        fastJsonConfig.setSerializerFeatures(SerializerFeature.PrettyFormat);
        return fastJsonConfig;
    }

讲解

NameFilter nameFilter = (object, name, value) -> name;表示序列化的时候将直接返回原来的键值而不做任何处理