基于Springboot一个注解搞定数据字典的实践方案

@Target({ElementType.FIELD})
@Retention(RetentionPolicy.RUNTIME)
@JacksonAnnotationsInside
@JsonSerialize(using = DictSerializer.class)
public @interface Dict {

    /** 字典类型 */
    String type();
}

public class DictSerializer extends StdSerializer<Object> implements ContextualSerializer {
    /** 字典注解 */
    private Dict dict;
    public DictSerializer() {
        super(Object.class);
    }
    public DictSerializer(Dict dict) {
        super(Object.class);
        this.dict = dict;
    }
    private String type;
    @Override
    public void serialize(Object value, JsonGenerator gen, SerializerProvider provider) throws IOException {
        if (Objects.isNull(value)) {
            gen.writeObject(value);
            return;
        }
        if (Objects.nonNull(dict)){
            type = dict.type();
        }
        // 通过数据字典类型和value获取name

        gen.writeObject(value);
        gen.writeFieldName(gen.getOutputContext().getCurrentName()+"Name");
        gen.writeObject(label);
    }
    @Override
    public JsonSerializer<?> createContextual(SerializerProvider prov, BeanProperty beanProperty) throws JsonMappingException {
        if (Objects.isNull(beanProperty)){
            return prov.findValueSerializer(beanProperty.getType(), beanProperty);
        }
        Dict dict = beanProperty.getAnnotation(Dict.class);
        if (Objects.nonNull(dict)){
            type = dict.type();
            return this;
        }
        return prov.findNullValueSerializer(null);
    }
}

private static String changeLabel(String type,String code) {
    if(code.indexOf(",") > -1) {
        String[] strs = code.split(",");
        if (strs.length > 1) {
            StringBuilder sb = new StringBuilder();
            for (String str : strs) {
                // 从缓存中获取字典。如果不行，通过SpringUtil.getBean(); 获取服务处理
                sb.append(DictDataCache.getLabel(type, str)).append(separator);
            }
            return sb.substring(0, sb.length() - 1);
        }
    }
    // 从缓存中获取字典。如果不行，通过SpringUtil.getBean(); 获取服务处理
    return DictDataCache.getLabel(type, code);
}

@Override
public String getDictDataOptions(String typeCode,String value) {
    if (redisTemplate.hasKey("dict:"+typeCode+":"+value)){
        return (String) redisTemplate.opsForValue().get("dict:"+typeCode+":"+value);
    }
    List<DictDataOptions> dictDataList = getDictDataHandler().getDictDataOptions(typeCode);
    if(CollUtil.isNotEmpty(dictDataList)) {
        put(typeCode, dictDataList);
    }
    if (redisTemplate.hasKey("dict:"+typeCode+":"+value)){
        return (String) redisTemplate.opsForValue().get("dict:"+typeCode+":"+value);
    }
    return null;
}

protected void put(String typeCode, List<DictDataOptions> dataList) {
    if (CollUtil.isNotEmpty(dataList)){
        for (DictDataOptions dictDataOptions : dataList) {
            AbstractDictHandler.redisTemplate.opsForValue().set("dict:"+typeCode+":"+dictDataOptions.getDataLabel(),dictDataOptions.getDataValue());
        }
    }
}

@Override
public List<DictDataOptions> getDictDataOptions(String typeCode) {
    return iSysDictService.queryDictItemsByCode(typeCode).stream()
            .map(e -> DictDataOptions.builder().typeCode(typeCode).dataLabel(e.getValue()).dataValue(e.getText()).build())
            .collect(Collectors.toList());
}

@Dict(type = "inspectType")
private String checkType;

      {
        "id": "1522492702905954306",
        "professionName": "专业名称888",
        "checkCode": "检测项编码8",
        "checkProject": "rrrr检测项目88",
        "checkDevice": "52",
        "checkStandard": "检测项编码88",
        "referenceStandard": "wq参考标准8",
        "checkType": "1",
        "checkTypeName": "尺寸",
        "remarks": "ef备注备注8"
      },