Java之数据字典实现

@Component
public classDictMap {
    @Autowired
    privateSysDictDataMapper dictDataMapper;

    private static HashMap<String, String> hashMap = new HashMap<>();

    public staticDictMap dictMap;

    /**
     * 从数据库中取值放入到HashMap中(存储字典)
     */@PostConstruct
    public voidqueryDic() {

        dictMap = this;
        dictMap.dictDataMapper = this.dictDataMapper;

        System.out.println("初始化");

        List<SysDictData> dics =dictMap.dictDataMapper.selectDictDataAll();

        for (int i = 0; i < dics.size(); i++) {
            SysDictData dic = dics.get(i);

            String fieldName =dic.getDictType();
            String fieldValue =dic.getDictValue();
            String key = fieldName + "_" +fieldValue;
            String value =dic.getDictLabel();
            System.out.println(key + "=" +value);
            hashMap.put(key, value);
        }
    }

    /**
     * 获取字典
     *
     * @param fieldName
     * @param fieldValue
     * @return
     */
    public staticString getFieldDetail(String fieldName, String fieldValue) {
        StringBuilder sb = newStringBuilder();
        StringBuilder keySb = sb.append(fieldName).append("_").append(fieldValue);
        String key =keySb.toString();
        String value = hashMap.get(key);
        returnvalue;
    }
}

@Data
public classUserVo implements Serializable {


    privateLong userId;

    privateString sex;

    publicString getSex() {
        return sex = DictMap.getFieldDetail("sex_type", sex);
    }
}